{"id":756,"date":"2024-06-25T16:56:12","date_gmt":"2024-06-25T07:56:12","guid":{"rendered":"https:\/\/xn--k10aa.com\/?p=756"},"modified":"2024-10-17T15:32:18","modified_gmt":"2024-10-17T06:32:18","slug":"unity-ts","status":"publish","type":"post","link":"https:\/\/remoooo.com\/en\/unity-ts\/","title":{"rendered":"Unity Tessellation"},"content":{"rendered":"\n<p>\u6807\u7b7e \uff1a\u5165\u95e8\/Shader\/\u66f2\u9762\u7ec6\u5206\u7740\u8272\u5668\/Displacement\u8d34\u56fe\/LOD\/\u5e73\u6ed1\u8f6e\u5ed3\/Early Culling<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>tessellation\uff08\u9576\u5d4c\uff09\u4e00\u8bcd\u662f\u6307\u4e00\u5927\u7c7b\u8bbe\u8ba1\u6d3b\u52a8\uff0c\u901a\u5e38\u662f\u6307\u5728\u5e73\u5766\u7684\u8868\u9762\u4e0a\uff0c\u7528\u5404\u79cd\u51e0\u4f55\u5f62\u72b6\u7684\u74f7\u7816\u76f8\u90bb\u6392\u5217\u4ee5\u5f62\u6210\u56fe\u6848\u3002\u5b83\u7684\u76ee\u7684\u53ef\u4ee5\u662f\u827a\u672f\u6027\u7684\u6216\u5b9e\u7528\u6027\u7684\uff0c\u5f88\u591a\u4f8b\u5b50\u53ef\u4ee5\u8ffd\u6eaf\u5230\u51e0\u5343\u5e74\u524d\u3002 &#8212; Tessellation, Wikipedia, accessed July 2020.<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u672c\u6587\u4e3b\u8981\u53c3\u8003\uff1a<\/p>\n\n\n\n<p><a href=\"https:\/\/nedmakesgames.medium.com\/mastering-tessellation-shaders-and-their-many-uses-in-unity-9caeb760150e\">https:\/\/nedmakesgames.medium.com\/mastering-tessellation-shaders-and-their-many-uses-in-unity-9caeb760150e<\/a><\/p>\n\n\n\n<p>\u6e38\u620f\u5f00\u53d1\u4e2d\u7684\u66f2\u9762\u7ec6\u5206\u4e00\u822c\u662f\u5728\u4e00\u4e2a\u4e09\u89d2\u5f62<strong>\u5e73\u9762<\/strong>\uff08\u6216\u8005\u662fQuad\uff09\u4e2d\u505a\u7ec6\u5206\uff08\u589e\u52a0\u9876\u70b9\u6570\u91cf\uff09\uff0c\u7136\u540e\u7528Displacement\u8d34\u56fe\u6765\u505a\u9876\u70b9\u4f4d\u79fb\uff0c\u6216\u8005\u662f\u7528\u672c\u6587\u5b9e\u73b0\u7684Phong\u7ec6\u5206\u6216\u8005PN triangles\u7ec6\u5206\u6765\u505a\u9876\u70b9\u4f4d\u79fb\u3002<\/p>\n\n\n\n<p>Phong\u7ec6\u5206\u4e0d\u9700\u8981\u77e5\u9053\u76f8\u90bb\u7684\u62d3\u6251\u4fe1\u606f\uff0c\u4ec5\u4ec5\u7528\u63d2\u503c\u8ba1\u7b97\uff0c\u6bd4PN triangles\u7b49\u7b97\u6cd5\u6548\u7387\u66f4\u9ad8\u3002GAMES101\u4e0a\u63d0\u5230\u7684Loop and Schaefer\u5229\u7528\u4f4e\u5ea6\u6570\u56db\u8fb9\u5f62\u66f2\u9762\u8fd1\u4f3cCatmull-Clark\u66f2\u9762\uff0c\u8fd9\u4e9b\u65b9\u6cd5\u8f93\u5165\u7684\u591a\u8fb9\u5f62\u90fd\u88ab\u4e00\u4e2a\u591a\u9879\u5f0f\u66f2\u9762\u66ff\u4ee3\u3002\u800c\u672c\u6587\u7684Phong\u7ec6\u5206\u4e0d\u9700\u8981\u4efb\u4f55\u4fee\u6b63\u989d\u5916\u7684\u51e0\u4f55\u533a\u57df\u7684\u64cd\u4f5c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u66f2\u9762\u7ec6\u5206\u6d41\u7a0b\u6982\u8ff0<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u8fd9\u7ae0\u5185\u5bb9\u662f\u66f2\u9762\u7ec6\u5206\u5728\u6e32\u67d3\u7ba1\u7ebf\u6d41\u7a0b\u7684\u4ecb\u7ecd\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u66f2\u9762\u7ec6\u5206\u7740\u8272\u5668\u4f4d\u4e8e\u9876\u70b9\u7740\u8272\u5668\u4e4b\u540e\uff0c\u4e14\u66f2\u9762\u7ec6\u5206\u5206\u4e3a\u4e09\u4e2a\u6b65\u9aa4\uff1aHull\u3001Tesselllator\u548cDomain\uff0c\u5176\u4e2dTessellator\u4e0d\u53ef\u7f16\u7a0b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-145-1024x527.png\" alt=\"\" class=\"wp-image-803 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"527\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-145-1024x527.png\" alt=\"\" class=\"wp-image-803 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-145-1024x527.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-145-300x154.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-145-768x395.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-145.png 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u66f2\u9762\u7ec6\u5206\u7684\u7b2c\u4e00\u4e2a\u6b65\u9aa4\u662f\u66f2\u9762\u7ec6\u5206\u63a7\u5236\u7740\u8272\u5668\uff08\u4e5f\u79f0\u4e3aTessellation Control Shader\uff0cTCS\uff09\uff0c\u8fd9\u4e2a\u7740\u8272\u5668\u5c06\u4f1a\u8f93\u51fa\u63a7\u5236\u70b9\u548c\u7ec6\u5206\u56e0\u5b50\u3002\u8fd9\u4e2a\u9636\u6bb5\u4e3b\u8981\u7531\u4e24\u4e2a\u5e76\u884c\u7684\u51fd\u6570\u7ec4\u6210\uff1aHull Function\u548cPatch Constant Function\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-102-1024x461.png\" alt=\"\" class=\"wp-image-758 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"461\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-102-1024x461.png\" alt=\"\" class=\"wp-image-758 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-102-1024x461.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-102-300x135.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-102-768x346.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-102.png 1284w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u8fd9\u4e24\u4e2a\u51fd\u6570\u90fd\u63a5\u6536\u4e00\u4e2a\u4e2a\u7684Patch\uff0c\u5373\u4e00\u7ec4\u9876\u70b9\u7d22\u5f15\uff0c\u6bd4\u5982\u4e09\u89d2\u5f62\u5219\u7528\u4e09\u4e2a\u6570\u5b57\u8868\u793a\u9876\u70b9\u7684\u7d22\u5f15\u3002\u5176\u4e2d\u4e00\u4e2aPatch\u5c31\u53ef\u4ee5\u7ec4\u6210\u4e00\u4e2a\u7247\u5143\uff0c\u6bd4\u65b9\u8bf4\u4e00\u4e2a\u4e09\u89d2\u5f62\u7247\u5143\u5c31\u662f\u7531\u4e09\u4e2a\u9876\u70b9\u7d22\u5f15\u7ec4\u6210\u7684\u3002<\/p>\n\n\n\n<p>\u5e76\u4e14\uff0cHull Function\u6bcf\u4e2a\u9876\u70b9\u6267\u884c\u4e00\u6b21\uff0cPath Constant Function\u6bcf\u4e2aPatch\u6267\u884c\u4e00\u6b21\uff0c\u524d\u8005\u8f93\u51fa\u4fee\u6539\u540e\u7684\u63a7\u5236\u70b9\u6570\u636e\uff08\u901a\u5e38\u5305\u62ec\u9876\u70b9\u4f4d\u7f6e\u3001\u53ef\u80fd\u7684\u6cd5\u7ebf\u3001\u7eb9\u7406\u5750\u6807\u7b49\u5c5e\u6027\uff09\uff0c\u540e\u8005\u5219\u8f93\u51fa\u6574\u4e2a\u7247\u5143\u76f8\u5173\u7684\u5e38\u91cf\u6570\u636e\uff0c\u5373\u7ec6\u5206\u56e0\u5b50\u3002\u7ec6\u5206\u56e0\u5b50\u4f1a\u544a\u8bc9\u4e0b\u4e00\u4e2a\u9636\u6bb5\uff08\u9576\u5d4c\u5668Tessellator\uff09\u5982\u4f55\u5bf9\u6bcf\u4e2a\u7247\u5143\u8fdb\u884c\u7ec6\u5206\u3002<\/p>\n\n\n\n<p>\u7b3c\u7edf\u5730\u8bb2\uff0cHull Function\u4fee\u6539\u6bcf\u4e2a\u63a7\u5236\u70b9\uff0c\u800cPatch Constant Function\u786e\u5b9a\u57fa\u4e8e\u6444\u50cf\u673a\u8ddd\u79bb\u7684\u7ec6\u5206\u7ea7\u522b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-104-1024x524.png\" alt=\"\" class=\"wp-image-760 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"524\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-104-1024x524.png\" alt=\"\" class=\"wp-image-760 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-104-1024x524.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-104-300x153.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-104-768x393.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-104.png 1228w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u63a5\u4e0b\u6765\u8fdb\u5165\u4e0d\u53ef\u7f16\u7a0b\u9636\u6bb5\uff0c\u9576\u5d4c\u5668\uff08tessellator\uff09\u3002\u4ed6\u63a5\u6536Patch\u548c\u521a\u521a\u5f97\u5230\u7684\u7ec6\u5206\u56e0\u5b50\u3002\u9576\u5d4c\u5668\u4f1a\u4e3a\u6bcf\u4e00\u4e2a\u9876\u70b9\u6570\u636e\u751f\u6210\u4e00\u4e2a\u91cd\u5fc3\u5750\u6807\uff08Barycentric coordinates\uff09\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-103-1024x533.png\" alt=\"\" class=\"wp-image-759 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"533\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-103-1024x533.png\" alt=\"\" class=\"wp-image-759 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-103-1024x533.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-103-300x156.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-103-768x400.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-103.png 1326w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u7d27\u63a5\u7740\u6765\u5230\u6700\u540e\u4e00\u6b65\uff0c\u57df\u9636\u6bb5\uff08Domain Stage\uff0c\u4e5f\u79f0\u4e3aTessellation Evaluation Shader\uff0cTES\uff09\uff0c\u8fd9\u662f\u53ef\u7f16\u7a0b\u7684\u3002\u8fd9\u4e2a\u90e8\u5206\u7531\u57df\u51fd\u6570\u7ec4\u6210\uff0c\u6bcf\u4e2a\u9876\u70b9\u6267\u884c\u4e00\u6b21\u3002\u63a5\u6536\u91cd\u5fc3\u5750\u6807\u3001Patch\u548cHull Stage\u4e2d\u4e24\u4e2a\u51fd\u6570\u751f\u6210\u7684\u7ed3\u679c\u3002\u5927\u591a\u6570\u903b\u8f91\u90fd\u5728\u8fd9\u4e2a\u5730\u65b9\u7f16\u5199\u3002\u6700\u91cd\u8981\u7684\u662f\u4f60\u53ef\u4ee5\u5728\u8fd9\u4e2a\u9636\u6bb5\u91cd\u65b0\u5b9a\u4f4d\u9876\u70b9\uff0c\u8fd9\u662f\u66f2\u9762\u7ec6\u5206\u4e2d\u6700\u91cd\u8981\u7684\u73af\u8282\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-105-1024x445.png\" alt=\"\" class=\"wp-image-761 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"445\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-105-1024x445.png\" alt=\"\" class=\"wp-image-761 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-105-1024x445.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-105-300x130.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-105-768x334.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-105.png 1326w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u5982\u679c\u6709\u51e0\u4f55\u7740\u8272\u5668\uff0c\u4ed6\u5c06\u4f1a\u5728Domain Stage\u540e\u6267\u884c\u3002\u4f46\u662f\u5982\u679c\u4e0d\u7528\uff0c\u5219\u6765\u5230\u5149\u6805\u5316\u9636\u6bb5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-106-1024x527.png\" alt=\"\" class=\"wp-image-762 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"527\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-106-1024x527.png\" alt=\"\" class=\"wp-image-762 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-106-1024x527.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-106-300x154.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-106-768x395.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-106.png 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u603b\u7ed3\uff0c\u6700\u5f00\u59cb\u662f\u9876\u70b9\u7740\u8272\u5668\u3002Hull\u9636\u6bb5\u63a5\u53d7\u9876\u70b9\u6570\u636e\uff0c\u51b3\u5b9a\u5982\u4f55\u7ec6\u5206Mesh\u3002\u7136\u540e\u901a\u8fc7tessellator\u9636\u6bb5\u5904\u7406\u7ec6\u5206\u7f51\u683c\uff0c\u6700\u540e\u7531Domain\u9636\u6bb5\u4e3a\u7247\u5143\u7740\u8272\u5668\u8f93\u51fa\u9876\u70b9\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u66f2\u9762\u7ec6\u5206\u5206\u6790<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u8fd9\u7ae0\u5185\u5bb9\u662fUnity\u66f2\u9762\u7ec6\u5206\u7684\u4ee3\u7801\u5206\u6790\uff0c\u5b9e\u9645\u4f8b\u5b50\u6548\u679c\u5c55\u793a\u548c\u5e95\u5c42\u539f\u7406\u6982\u8ff0\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">2.1 \u5173\u952e\u4ee3\u7801\u5206\u6790<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">2.1.1 Unity\u66f2\u9762\u7ec6\u5206\u57fa\u672c\u8bbe\u7f6e<\/h3>\n\n\n\n<p>\u9996\u5148\u66f2\u9762\u7ec6\u5206\u7740\u8272\u5668\u9700\u8981\u4f7f\u7528shader target 5.0\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"HLSLPROGRAM\n#pragma target 5.0 \/\/ 5.0 required for tessellation\n\n#pragma vertex Vertex\n#pragma hull Hull\n#pragma domain Domain\n#pragma fragment Fragment\n\nENDHLSL\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">HLSLPROGRAM<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">#<\/span><span style=\"color: #D8DEE9\">pragma<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">target<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">5.0<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ 5.0 required for tessellation<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">#<\/span><span style=\"color: #D8DEE9\">pragma<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">vertex<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Vertex<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">#<\/span><span style=\"color: #D8DEE9\">pragma<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">hull<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Hull<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">#<\/span><span style=\"color: #D8DEE9\">pragma<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">domain<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Domain<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">#<\/span><span style=\"color: #D8DEE9\">pragma<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">fragment<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Fragment<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">ENDHLSL<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">2.1.2 Hull Stage\u4ee3\u78011 &#8211; Hull Function<\/h3>\n\n\n\n<p>\u7ecf\u5178\u7684\u6d41\u7a0b\uff0c\u9876\u70b9\u7740\u8272\u5668\u5c06\u4f4d\u7f6e\u548c\u6cd5\u7ebf\u4fe1\u606f\u8f6c\u4e3a\u4e16\u754c\u7a7a\u95f4\u3002\u7136\u540e\u5c06\u8f93\u51fa\u7ed3\u679c\u4f20\u9012\u5230Hull Stage\u4e2d\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u548c\u9876\u70b9\u7740\u8272\u5668\u4e0d\u540c\uff0cHull\u7740\u8272\u5668\u7684\u9876\u70b9\u4f7f\u7528 INTERNALTESSPOS \u8bed\u4e49\u800c\u4e0d\u662f POSITION \u8bed\u4e49\u6765\u8868\u793a\u3002\u539f\u56e0\u5728\u4e8eHull\u4e0d\u9700\u8981\u5c06\u8fd9\u4e9b\u9876\u70b9\u4f4d\u7f6e\u8f93\u51fa\u5230\u4e0b\u4e00\u4e2a\u6e32\u67d3\u6d41\u7a0b\uff0c\u800c\u662f\u7528\u4e8e\u81ea\u8eab\u5185\u90e8\u66f2\u9762\u7ec6\u5206\u7684\u7b97\u6cd5\uff0c\u6240\u4ee5\u4f1a\u5c06\u8fd9\u4e9b\u9876\u70b9\u8f6c\u6362\u5230\u66f4\u9002\u5408\u66f2\u9762\u7ec6\u5206\u7684\u5750\u6807\u7cfb\u7edf\u3002\u9664\u6b64\u4e4b\u5916\u5f00\u53d1\u8005\u4e5f\u80fd\u66f4\u52a0\u6e05\u6670\u533a\u5206\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"struct Attributes {\n    float3 positionOS : POSITION;\n    float3 normalOS : NORMAL;\n    UNITY_VERTEX_INPUT_INSTANCE_ID\n};\n\nstruct TessellationControlPoint {\n    float3 positionWS : INTERNALTESSPOS;\n    float3 normalWS : NORMAL;\n    UNITY_VERTEX_INPUT_INSTANCE_ID\n};\n\nTessellationControlPoint Vertex(Attributes input) {\n    TessellationControlPoint output;\n\n    UNITY_SETUP_INSTANCE_ID(input);\n    UNITY_TRANSFER_INSTANCE_ID(input, output);\n\n    VertexPositionInputs posnInputs = GetVertexPositionInputs(input.positionOS);\n    VertexNormalInputs normalInputs = GetVertexNormalInputs(input.normalOS);\n\n    output.positionWS = posnInputs.positionWS;\n    output.normalWS = normalInputs.normalWS;\n    return output;\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">struct<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Attributes<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> positionOS <\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">POSITION<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> normalOS <\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">NORMAL<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">UNITY_VERTEX_INPUT_INSTANCE_ID<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">struct<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> positionWS <\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">INTERNALTESSPOS<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> normalWS <\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">NORMAL<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">UNITY_VERTEX_INPUT_INSTANCE_ID<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">Vertex<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">Attributes<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">input<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #88C0D0\">UNITY_SETUP_INSTANCE_ID<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">input<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #88C0D0\">UNITY_TRANSFER_INSTANCE_ID<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">input<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">VertexPositionInputs<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">posnInputs<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">GetVertexPositionInputs<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">input<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionOS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">VertexNormalInputs<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">normalInputs<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">GetVertexNormalInputs<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">input<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalOS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">posnInputs<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">normalInputs<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u4e0b\u9762\u662fHull Shader\u7684\u4e00\u4e9b\u8bbe\u7f6e\u53c2\u6570\u3002<\/p>\n\n\n\n<p>\u7b2c\u4e00\u884cdomain\u662f\u5b9a\u4e49\u66f2\u9762\u7ec6\u5206\u7740\u8272\u5668\u7684\u57df\u7c7b\u578b\uff0c\u610f\u5473\u7740\u8f93\u5165\u8f93\u51fa\u90fd\u662f\u4e09\u89d2\u5f62\u56fe\u5143\u3002\u53ef\u4ee5\u9009tri(\u4e09\u89d2\u5f62)\u3001quad\uff08\u56db\u8fb9\u5f62\uff09\u7b49\u3002<\/p>\n\n\n\n<p>\u7b2c\u4e8c\u884coutputcontrolpoints \u5219\u8868\u793a\u8f93\u51fa\u63a7\u5236\u70b9\u7684\u6570\u91cf\uff0c3\u5bf9\u5e94\u4e09\u89d2\u5f62\u7684\u4e09\u4e2a\u9876\u70b9\u3002<\/p>\n\n\n\n<p>\u7b2c\u4e09\u884coutputtopology\u8868\u793a\u7ec6\u5206\u540e\u56fe\u5143\u7684\u62d3\u6251\u7ed3\u6784\uff0ctriangle_cw\u610f\u601d\u662f\u8f93\u51fa\u4e09\u89d2\u5f62\u7684\u9876\u70b9\u6309\u7167\u987a\u65f6\u9488\u6392\u5e8f\uff0c\u6b63\u786e\u7684\u987a\u5e8f\u53ef\u4ee5\u786e\u4fdd\u8868\u9762\u6b63\u9762\u671d\u5916\u3002triangle_cw\uff08\u987a\u65f6\u9488\u73af\u7ed5\u4e09\u89d2\u5f62\uff09\u3001triangle_ccw\uff08\u9006\u65f6\u9488\u73af\u7ed5\u4e09\u89d2\u5f62\uff09\u3001line\uff08\u7ebf\u6bb5\uff09<\/p>\n\n\n\n<p>\u7b2c\u56db\u884cpatchconstantfunc\u5c31\u662fHull Stage\u7684\u53e6\u5916\u4e00\u4e2a\u51fd\u6570\uff0c\u8f93\u51fa\u7684\u662f\u7ec6\u5206\u56e0\u5b50\u7b49\u5e38\u91cf\u6570\u636e\u3002\u4e00\u4e2aPatch\u53ea\u6267\u884c\u4e00\u6b21\u3002<\/p>\n\n\n\n<p>\u7b2c\u4e94\u884cpartitioning\uff0c\u5206\u5272\u6a21\u5f0f\uff0c\u6307\u5b9a\u4e86\u5982\u4f55\u5206\u914d\u989d\u5916\u7684\u9876\u70b9\u5230\u539f\u59cbPath\u56fe\u5143\u7684\u8fb9\u4e0a\uff0c\u8fd9\u4e00\u6b65\u53ef\u4ee5\u8ba9\u7ec6\u5206\u8fc7\u7a0b\u66f4\u52a0\u7684\u5e73\u6ed1\u5747\u5300\u3002integer\uff0cfractional_even\uff0cfractional_odd\u3002<\/p>\n\n\n\n<p>\u7b2c\u516d\u884c\u7684maxtessfactor\u8868\u793a\u6700\u5927\u7ec6\u5206\u56e0\u5b50\uff0c\u9650\u5236\u6700\u5927\u7684\u7ec6\u5206\u53ef\u4ee5\u63a7\u5236\u6e32\u67d3\u8d1f\u62c5\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"[domain(&quot;tri&quot;)]\n[outputcontrolpoints(3)]\n[outputtopology(&quot;triangle_cw&quot;)]\n[patchconstantfunc(&quot;patchconstant&quot;)]\n[partitioning(&quot;fractional_even&quot;)]\n[maxtessfactor(64.0)]\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #88C0D0\">domain<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">tri<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">)]<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #88C0D0\">outputcontrolpoints<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #D8DEE9FF\">)]<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #88C0D0\">outputtopology<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">triangle_cw<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">)]<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #88C0D0\">patchconstantfunc<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">patchconstant<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">)]<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #88C0D0\">partitioning<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">fractional_even<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">)]<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #88C0D0\">maxtessfactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">64.0<\/span><span style=\"color: #D8DEE9FF\">)]<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u5728Hull Shader\u4e2d\uff0c\u6bcf\u4e00\u4e2a\u63a7\u5236\u70b9\u90fd\u4f1a\u88ab\u72ec\u7acb\u8c03\u7528\u4e00\u6b21\uff0c\u6240\u4ee5\u8fd9\u4e2a\u51fd\u6570\u8981\u6267\u884c\u63a7\u5236\u70b9\u6570\u91cf\u7684\u6b21\u6570\u3002\u8981\u77e5\u9053\u5f53\u524d\u6b63\u5728\u5904\u7406\u7684\u662f\u54ea\u4e00\u4e2a\u9876\u70b9\uff0c\u6211\u4eec\u7528\u8bed\u4e49\u4e3a SV_OutputControlPointID \u7684\u53d8\u91cf id \u6765\u5224\u65ad\u3002\u51fd\u6570\u8fd8\u4f20\u5165\u4e00\u4e2a\u7279\u6b8a\u7684\u7ed3\u6784\uff0c\u8be5\u7ed3\u6784\u53ef\u4ee5\u50cf\u4f7f\u7528\u6570\u7ec4\u4e00\u6837\u65b9\u4fbf\u7684\u53d6\u7528Patch\u91cc\u9762\u7684\u4efb\u610f\u4e00\u4e2a\u63a7\u5236\u70b9\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"TessellationControlPoint Hull(\n    InputPatch<TessellationControlPoint, 3&gt; patch, uint id : SV_OutputControlPointID) {\n    TessellationControlPoint h;\n    \/\/ Hull shader code here\n\n    return patch[id];\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">Hull<\/span><span style=\"color: #D8DEE9FF\">(<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">InputPatch<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">uint<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">id<\/span><span style=\"color: #D8DEE9FF\"> : <\/span><span style=\"color: #D8DEE9\">SV_OutputControlPointID<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">h<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ Hull shader code here<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">id<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">2.1.3 Hull Stage\u4ee3\u78012 &#8211; Patch Constant Function<\/h3>\n\n\n\n<p>\u9664\u4e86Hull Shader\uff0cHull Stage\u91cc\u8fd8\u6709\u4e00\u4e2a\u51fd\u6570\u4e0e\u4e4b\u5e76\u884c\uff0cpatch constant function\u3002\u8fd9\u4e2a\u51fd\u6570\u7684\u7b7e\u540d\u6bd4\u8f83\u7b80\u5355\uff0c\u8f93\u5165\u4e00\u4e2apatch\uff0c\u8f93\u51fa\u8ba1\u7b97\u540e\u7684\u7ec6\u5206\u56e0\u5b50\u3002\u8f93\u51fa\u7ed3\u6784\u5305\u542b\u4e86\u4e3a\u4e09\u89d2\u5f62\u6bcf\u6761\u8fb9\u6307\u5b9a\u7684\u9472\u5d4c\u56e0\u5b50\u3002\u8fd9\u4e9b\u56e0\u5b50\u901a\u8fc7\u7279\u6b8a\u7684\u7cfb\u7edf\u503c\u8bed\u4e49 SV_TessFactor \u8fdb\u884c\u6807\u8bc6\u3002\u6bcf\u4e2a\u9472\u5d4c\u56e0\u5b50\u5b9a\u4e49\u4e86\u76f8\u5bf9\u5e94\u8fb9\u5e94\u8be5\u88ab\u7ec6\u5206\u6210\u591a\u5c11\u5c0f\u6bb5\uff0c\u4ece\u800c\u5f71\u54cd\u6700\u7ec8\u751f\u6210\u7684\u7f51\u683c\u7684\u5bc6\u5ea6\u548c\u7ec6\u8282\u3002\u4e0b\u9762\u5177\u4f53\u6765\u770b\u770b\u8fd9\u4e2a\u56e0\u5b50\u5177\u4f53\u5305\u542b\u4e86\u4ec0\u4e48\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"struct TessellationFactors {\n    float edge[3] : SV_TessFactor;\n    float inside : SV_InsideTessFactor;\n};\n\/\/ The patch constant function runs once per triangle, or &quot;patch&quot;\n\/\/ It runs in parallel to the hull function\nTessellationFactors PatchConstantFunction(\n    InputPatch<TessellationControlPoint, 3&gt; patch) {\n    UNITY_SETUP_INSTANCE_ID(patch[0]); \/\/ Set up instancing\n    \/\/ Calculate tessellation factors\n    TessellationFactors f;\n    f.edge[0] = _FactorEdge1.x;\n    f.edge[1] = _FactorEdge1.y;\n    f.edge[2] = _FactorEdge1.z;\n    f.inside = _FactorInside;\n    return f;\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">struct<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #D8DEE9FF\">] : <\/span><span style=\"color: #D8DEE9\">SV_TessFactor<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> inside <\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">SV_InsideTessFactor<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ The patch constant function runs once per triangle, or &quot;patch&quot;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ It runs in parallel to the hull function<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PatchConstantFunction<\/span><span style=\"color: #D8DEE9FF\">(<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">InputPatch<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #88C0D0\">UNITY_SETUP_INSTANCE_ID<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">])<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ Set up instancing<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ Calculate tessellation factors<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_FactorEdge1<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_FactorEdge1<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_FactorEdge1<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">inside<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_FactorInside<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u9996\u5148TessellationFactors\u7ed3\u6784\u4f53\u91cc\u9762\u6709\u4e00\u4e2a\u8fb9\u7f18\u9576\u5d4c\u56e0\u5b50 edge[3] \uff0c\u6807\u8bb0\u4e3a SV_TessFactor \u3002\u5f53\u4f7f\u7528\u4e09\u89d2\u5f62\u4f5c\u4e3a\u57fa\u672c\u56fe\u5143\u7ec6\u5206\u65f6\uff0c\u6bcf\u6761\u8fb9\u88ab\u5b9a\u4e49\u4e3a\u4f4d\u4e8e\u4e0e\u5177\u6709\u76f8\u540c\u7d22\u5f15\u7684\u9876\u70b9\u76f8\u5bf9\u7684\u4f4d\u7f6e\u3002\u5177\u4f53\u8bf4\u662f\uff1a\u8fb90\u5bf9\u5e94\u9876\u70b91\u548c\u9876\u70b92\u4e4b\u95f4\u3002\u8fb91\u5bf9\u5e94\u9876\u70b92\u548c\u9876\u70b90\u4e4b\u95f4\u3002\u8fb92\u5bf9\u5e94\u9876\u70b90\u548c\u9876\u70b91\u4e4b\u95f4\u3002\u4e3a\u4ec0\u4e48\u8fd9\u6837\uff1f\u76f4\u89c2\u89e3\u91ca\u662f\uff0c\u8fb9\u7684\u7d22\u5f15\u4e0e\u5b83\u4e0d\u8fde\u63a5\u7684\u90a3\u4e2a\u9876\u70b9\u7684\u7d22\u5f15\u76f8\u540c\u3002\u8fd9\u6709\u52a9\u4e8e\u5728\u7f16\u5199Shader\u4ee3\u7801\u65f6\u5feb\u901f\u8bc6\u522b\u548c\u5904\u7406\u4e0e\u7279\u5b9a\u9876\u70b9\u76f8\u5bf9\u5e94\u7684\u8fb9\u3002<\/p>\n\n\n\n<p>\u8fd8\u6709\u4e00\u4e2a\u4e2d\u5fc3\u9576\u5d4c\u56e0\u5b50 inside \u6807\u8bb0\u4e3a SV_InsideTessFactor \u3002\u8fd9\u4e2a\u56e0\u5b50\u76f4\u89c2\u6539\u53d8\u6700\u7ec8\u9576\u5d4c\u7684\u56fe\u6848\uff0c\u66f4\u672c\u8d28\u7684\u8bf4\u662f\u51b3\u5b9a\u4e86\u8fb9\u7f18\u7ec6\u5206\u7684\u6b21\u6570\uff0c\u7528\u4e8e\u63a7\u5236\u4e09\u89d2\u5f62\u5185\u90e8\u7684\u7ec6\u5206\u5bc6\u5ea6\u3002\u4e0e\u8fb9\u7684\u7ec6\u5206\u56e0\u5b50\u76f8\u6bd4\uff0c\u4e2d\u5fc3\u9576\u5d4c\u56e0\u5b50\u63a7\u5236\u7684\u662f\u4e09\u89d2\u5f62\u5185\u90e8\u5982\u4f55\u88ab\u8fdb\u4e00\u6b65\u7ec6\u5206\u6210\u66f4\u5c0f\u7684\u4e09\u89d2\u5f62\uff0c\u800c\u8fb9\u7f18\u9576\u5d4c\u56e0\u5b50\u5f71\u54cd\u8fb9\u7f18\u7ec6\u5206\u7684\u6b21\u6570\u3002<\/p>\n\n\n\n<p>Patch Constant Function\u8fd8\u53ef\u4ee5\u8f93\u51fa\u5176\u4ed6\u6709\u7528\u7684\u6570\u636e\uff0c\u4f46\u662f\u5fc5\u987b\u6807\u6ce8\u6b63\u786e\u7684\u8bed\u4e49\u3002\u6bd4\u65b9\u8bf4BEZIERPOS\u8bed\u4e49\u5c31\u975e\u5e38\u6709\u7528\uff0c\u53ef\u4ee5\u8868\u793afloat3\u7684\u6570\u636e\u3002\u7a0d\u540e\u5c06\u4f1a\u4f7f\u7528\u8fd9\u4e2a\u8bed\u4e49\u8f93\u51fa\u57fa\u4e8e\u8d1d\u585e\u5c14\u66f2\u7ebf\u7684\u5e73\u6ed1\u7b97\u6cd5\u63a7\u5236\u70b9\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.1.4 Domain Stage\u4ee3\u7801<\/h3>\n\n\n\n<p>\u63a5\u4e0b\u6765\u5c31\u8fdb\u5165Domain Stage\u3002Domain Function\u4e5f\u6709\u4e00\u4e2aDomain\u5c5e\u6027\uff0c\u5e94\u8be5\u4e0eHull Function\u7684\u8f93\u51fa\u62d3\u6251\u7c7b\u578b\u76f8\u540c\uff0c\u8be5\u4f8b\u5b50\u8bbe\u7f6e\u4e3a\u4e09\u89d2\u5f62\u3002\u8fd9\u4e2a\u51fd\u6570\u8f93\u5165\u6765\u81eaHull Function\u7684Patch\u3001Patch Constant Function\u7684\u8f93\u51fa\u4ee5\u53ca\u6700\u91cd\u8981\u7684\u9876\u70b9\u91cd\u5fc3\u5750\u6807\u3002\u8f93\u51fa\u7ed3\u6784\u975e\u5e38\u63a5\u8fd1\u9876\u70b9\u7740\u8272\u5668\u7684\u8f93\u51fa\u7ed3\u6784\uff0c\u5305\u542bClip\u7a7a\u95f4\u7684\u4f4d\u7f6e\uff0c\u4ee5\u53ca\u7247\u5143\u7740\u8272\u5668\u6240\u9700\u8981\u7684\u7167\u660e\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u6682\u65f6\u4e0d\u77e5\u9053\u5e72\u561b\u7684\u6ca1\u5173\u7cfb\uff0c\u8bfb\u5230\u672c\u6587\u7b2c\u56db\u7ae0\u518d\u8df3\u56de\u6765\u7814\u7a76\u3002<\/p>\n\n\n\n<p>\u7b80\u5355\u7684\u8bf4\u5c31\u662f\uff0c\u7ec6\u5206\u51fa\u6765\u7684\u6bcf\u4e00\u4e2a\u65b0\u9876\u70b9\u90fd\u4f1a\u8dd1\u4e00\u8fb9\u8fd9\u4e2adomain\u51fd\u6570\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"struct Interpolators {\n    float3 normalWS                 : TEXCOORD0;\n    float3 positionWS               : TEXCOORD1;\n    float4 positionCS               : SV_POSITION;\n};\n\n\/\/ Call this macro to interpolate between a triangle patch, passing the field name\n#define BARYCENTRIC_INTERPOLATE(fieldName) \\\n        patch[0].fieldName * barycentricCoordinates.x + \\\n        patch[1].fieldName * barycentricCoordinates.y + \\\n        patch[2].fieldName * barycentricCoordinates.z\n\n\/\/ The domain function runs once per vertex in the final, tessellated mesh\n\/\/ Use it to reposition vertices and prepare for the fragment stage\n[domain(&quot;tri&quot;)] \/\/ Signal we're inputting triangles\nInterpolators Domain(\n    TessellationFactors factors, \/\/ The output of the patch constant function\n    OutputPatch<TessellationControlPoint, 3&gt; patch, \/\/ The Input triangle\n    float3 barycentricCoordinates : SV_DomainLocation) { \/\/ The barycentric coordinates of the vertex on the triangle\n\n    Interpolators output;\n\n    \/\/ Setup instancing and stereo support (for VR)\n    UNITY_SETUP_INSTANCE_ID(patch[0]);\n    UNITY_TRANSFER_INSTANCE_ID(patch[0], output);\n    UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(output);\n\n    float3 positionWS = BARYCENTRIC_INTERPOLATE(positionWS);\n    float3 normalWS = BARYCENTRIC_INTERPOLATE(normalWS);\n\n    output.positionCS = TransformWorldToHClip(positionWS);\n    output.normalWS = normalWS;\n    output.positionWS = positionWS;\n\n    return output;\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">struct<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Interpolators<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> normalWS                 <\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">TEXCOORD0<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> positionWS               <\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">TEXCOORD1<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> positionCS               <\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">SV_POSITION<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ Call this macro to interpolate between a triangle patch, passing the field name<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">#<\/span><span style=\"color: #D8DEE9\">define<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BARYCENTRIC_INTERPOLATE<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">fieldName<\/span><span style=\"color: #D8DEE9FF\">) \\<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">fieldName<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">barycentricCoordinates<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> \\<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">fieldName<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">barycentricCoordinates<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> \\<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">fieldName<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">barycentricCoordinates<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ The domain function runs once per vertex in the final, tessellated mesh<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ Use it to reposition vertices and prepare for the fragment stage<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #88C0D0\">domain<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">tri<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">)] <\/span><span style=\"color: #616E88\">\/\/ Signal we&#39;re inputting triangles<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">Interpolators<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">Domain<\/span><span style=\"color: #D8DEE9FF\">(<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">factors<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ The output of the patch constant function<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">OutputPatch<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ The Input triangle<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">barycentricCoordinates<\/span><span style=\"color: #D8DEE9FF\"> : <\/span><span style=\"color: #D8DEE9\">SV_DomainLocation<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ The barycentric coordinates of the vertex on the triangle<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">Interpolators<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ Setup instancing and stereo support (for VR)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #88C0D0\">UNITY_SETUP_INSTANCE_ID<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">])<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #88C0D0\">UNITY_TRANSFER_INSTANCE_ID<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #88C0D0\">UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BARYCENTRIC_INTERPOLATE<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BARYCENTRIC_INTERPOLATE<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">TransformWorldToHClip<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u8fd9\u4e2a\u51fd\u6570\uff0cUnity\u4f1a\u7ed9\u6211\u4eec\u7ec6\u5206\u56e0\u5b50\u3001Patch\u7684\u4e09\u4e2a\u9876\u70b9\u8fd8\u6709\u5f53\u524d\u7684\u65b0\u9876\u70b9\u7684\u91cd\u5fc3\u5750\u6807\u3002\u6211\u4eec\u53ef\u4f7f\u7528\u8fd9\u4e9b\u6570\u636e\u505a\u4f4d\u79fb\u5904\u7406\u7b49\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.2 \u7ec6\u5206\u56e0\u5b50\u4e0e\u5212\u5206\u6a21\u5f0f\u8be6\u89e3<\/h3>\n\n\n\n<p>\u4ece\u8fd9\u4e2a<a target=\"_blank\" href=\"https:\/\/gist.github.com\/NedMakesGames\/09784830b01e2b7c5f0559e807d48815\" rel=\"noreferrer noopener\">\u94fe\u63a5 <\/a>\u62f7\u8d1d\u4ee3\u7801\uff0c\u7136\u540e\u5236\u4f5c\u5bf9\u5e94\u7684\u6750\u8d28\uff0c\u5e76\u4e14\u5f00\u542f\u7ebf\u6846\u6a21\u5f0f\u3002\u6211\u4eec\u76ee\u524d\u53ea\u4e3aMesh\u7ed8\u5236\u4e86\u9876\u70b9\uff0c\u5e76\u6ca1\u6709\u5728\u7247\u5143\u7740\u8272\u5668\u5e94\u7528\u4efb\u4f55\u64cd\u4f5c\uff0c\u56e0\u6b64\u770b\u4e0a\u53bb\u662f\u900f\u660e\u7684\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-107.png\" alt=\"\" class=\"wp-image-763 lazyload\"\/><noscript><img decoding=\"async\" width=\"972\" height=\"632\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-107.png\" alt=\"\" class=\"wp-image-763 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-107.png 972w, https:\/\/remoooo.com\/wp-content\/uploads\/image-107-300x195.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-107-768x499.png 768w\" sizes=\"(max-width: 972px) 100vw, 972px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u5982\u679c\u5c06Edge\u56e0\u5b50\u4efb\u610f\u4e00\u4e2a\u5206\u91cf\u8bbe\u7f6e\u4e3a0\u6216\u8005\u5c0f\u4e8e0\uff0c\u90a3\u4e48Mesh\u5c31\u4f1a\u5b8c\u5168\u6d88\u5931\u3002\u4e0b\u56fe\u5c31\u662f\u6d88\u5931\u540e\u7684\u6837\u5b50\uff08\u6253\u5f00\u4e86Unity\u7f16\u8f91\u5668\u7684\u7269\u4f53\u8fb9\u6846\u63cf\u8fb9\uff09\uff0c\u8fd9\u4e2a\u7279\u6027\u5341\u5206\u91cd\u8981\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-109.png\" alt=\"\" class=\"wp-image-765 lazyload\"\/><noscript><img decoding=\"async\" width=\"1020\" height=\"660\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-109.png\" alt=\"\" class=\"wp-image-765 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-109.png 1020w, https:\/\/remoooo.com\/wp-content\/uploads\/image-109-300x194.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-109-768x497.png 768w\" sizes=\"(max-width: 1020px) 100vw, 1020px\" \/><\/noscript><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">2.2.1 \u7ec6\u5206\u56e0\u5b50\u6982\u8ff0<\/h3>\n\n\n\n<p>\u8bf4\u767d\u4e86\uff0c\u8fd9\u4e9b\u4e2a\u56e0\u5b50\u5728Hull Stage\u8bbe\u7f6e\u4e86\u4e4b\u540e\uff0c\u5c31\u53ea\u662f\u7b80\u5355\u7c97\u66b4\u7684\u5728Tessellation Stage\u4e2d\u5199\u8fdb\u91cd\u5fc3\u5750\u6807\u91cc\uff0c\u6bd4\u5982\u8bf4\u8fb9\u7f18\u56e0\u5b50\u3001\u5185\u90e8\u56e0\u5b50\u3002\uff08\u5047\u8bbe\u90fd\u662ftri\uff0c\u5982\u679c\u662fquad\u5219\u662f\u7528uv\u6765\u8ba1\u7b97\uff0c\u53ef\u80fd\u4f1a\u66f4\u52a0\u590d\u6742\uff0c\u6211\u4e0d\u77e5\u9053\uff09\u8fd9\u4e2a\u7b80\u5355\u7c97\u66b4\u7684\u9636\u6bb5\u5e76\u4e0d\u53ef\u7f16\u7a0b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-113-1024x543.png\" alt=\"\" class=\"wp-image-769 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"543\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-113-1024x543.png\" alt=\"\" class=\"wp-image-769 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-113-1024x543.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-113-300x159.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-113-768x407.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-113.png 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4ee5\u201c\u6574\u6570\uff08\u5747\u5300\uff09\u5207\u5272\u6a21\u5f0f\u201d\u4e3a\u4f8b\u5b50\u3002\uff08\u6682\u65f6\uff09 [partitioning(&#8220;integer&#8221;)] domain\u90fd\u662f\u4e09\u89d2\u5f62 [domain(&#8220;tri&#8221;)] \u8f93\u51fa\u7684\u9876\u70b9\u6570\u91cf\u4e5f\u662f3\u3002 [outputcontrolpoints(3)] \u5e76\u4e14\u8f93\u51fa\u7684\u62d3\u6251\u7ed3\u6784\u662f\u4e09\u89d2\u5f62\u987a\u65f6\u9488\u3002 [outputtopology(&#8220;triangle_cw&#8221;)]<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">2.2.2 \u51c6\u5907\u5de5\u4f5c\u4e0e\u6f5c\u5728\u7684\u5e76\u884c\u95ee\u9898<\/h3>\n\n\n\n<p>\u5c06\u4ee3\u7801\u4fee\u6539\u6539\u4e3a\u5982\u4e0b\uff1a<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ .shader\n_FactorEdge1(&quot;[Float3]Edge factors,[Float]Inside factor&quot;, Vector) = (1, 1, 1, 1) \/\/ --  Edited  -- \n\n\/\/ .hlsl\nfloat4 _FactorEdge1; \/\/ --  Edited  -- \n...\nf.edge[0] = _FactorEdge1.x;\nf.edge[1] = _FactorEdge1.y; \/\/ --  Edited  -- \nf.edge[2] = _FactorEdge1.z; \/\/ --  Edited  -- \nf.inside = _FactorEdge1.w; \/\/ --  Edited  --\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ .shader<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">_FactorEdge1<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">[Float3]Edge factors,[Float]Inside factor<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Vector<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #616E88\">\/\/ --  Edited  -- <\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ .hlsl<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_FactorEdge1<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ --  Edited  -- <\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_FactorEdge1<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_FactorEdge1<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ --  Edited  -- <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_FactorEdge1<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ --  Edited  -- <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">inside<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_FactorEdge1<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ --  Edited  --<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-112.png\" alt=\"\" class=\"wp-image-768 lazyload\"\/><noscript><img decoding=\"async\" width=\"630\" height=\"140\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-112.png\" alt=\"\" class=\"wp-image-768 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-112.png 630w, https:\/\/remoooo.com\/wp-content\/uploads\/image-112-300x67.png 300w\" sizes=\"(max-width: 630px) 100vw, 630px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u8fd9\u91cc\u53ef\u80fd\u4f1a\u5b58\u5728\u4e00\u4e2a\u95ee\u9898\u3002\u6709\u65f6\u5019\u7f16\u8bd1\u5668\u4f1a\u62c6\u5206Patch Constant Function\u5e76\u884c\u8ba1\u7b97\u6bcf\u4e00\u4e2a\u56e0\u5b50\uff0c\u8fd9\u5c31\u5bfc\u81f4\u6709\u65f6\u5019\u4e00\u4e9b\u56e0\u5b50\u88ab\u5220\u9664\u4e86\uff0c\u53ef\u80fd\u4f1a\u5230\u770b\u56e0\u5b50\u4f1a\u83ab\u540d\u5176\u5999\u7b49\u4e8e0\u3002\u89e3\u51b3\u65b9\u6cd5\u662f\u5c06\u8fd9\u4e9b\u56e0\u5b50\u6253\u5305\u6210\u4e00\u4e2a\u5411\u91cf\uff0c\u8fd9\u6837\u7f16\u8bd1\u5668\u5c31\u4e0d\u4f1a\u4f7f\u7528\u672a\u5b9a\u4e49\u7684\u91cf\u3002\u4e0b\u9762\u7b80\u5355\u590d\u73b0\u4e00\u4e0b\u53ef\u80fd\u4f1a\u53d1\u751f\u7684\u60c5\u51b5\u3002<\/p>\n\n\n\n<p>\u4fee\u6539Path Constant Function\u5982\u4e0b\uff0c\u5e76\u4e14\u5728\u9762\u677f\u4e2d\u5f00\u653e\u4e24\u4e2a\u65b0\u7684\u5c5e\u6027\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4fee\u6539\u7684\u4ee3\u7801\u884c\u540e\u6ce8\u91ca\u4e86 \/\/ &#8212; Edited &#8212; \u3002<\/p>\n<\/blockquote>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ The patch constant function runs once per triangle, or &quot;patch&quot;\n\/\/ It runs in parallel to the hull function\nTessellationFactors PatchConstantFunction(\nInputPatch<TessellationControlPoint, 3&gt; patch) {\nUNITY_SETUP_INSTANCE_ID(patch[0]); \/\/ Set up instancing\n\/\/ Calculate tessellation factors\n    TessellationFactors f;\n    f.edge[0] = _FactorEdge1.x;\n    f.edge[1] = _FactorEdge2; \/\/ --  Edited  --\n    f.edge[2] = _FactorEdge3; \/\/ --  Edited  --\n    f.inside = _FactorInside;\nreturn f;\n}\n_FactorEdge2(&quot;Edge 2 factor&quot;, Float) = 1 \/\/ --  Edited  --\n_FactorEdge3(&quot;Edge 3 factor&quot;, Float) = 1 \/\/ --  Edited  --\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ The patch constant function runs once per triangle, or &quot;patch&quot;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ It runs in parallel to the hull function<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PatchConstantFunction<\/span><span style=\"color: #D8DEE9FF\">(<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">InputPatch<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">UNITY_SETUP_INSTANCE_ID<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">])<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ Set up instancing<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ Calculate tessellation factors<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_FactorEdge1<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_FactorEdge2<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ --  Edited  --<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_FactorEdge3<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ --  Edited  --<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">inside<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_FactorInside<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">_FactorEdge2<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Edge 2 factor<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Float<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ --  Edited  --<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">_FactorEdge3<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Edge 3 factor<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Float<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ --  Edited  --<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">2.2.3 \u8fb9\u7f18\u56e0\u5b50\u6548\u679c Edge Factor &#8211; SV_TessFactor<\/h3>\n\n\n\n<p>\u53ef\u4ee5\u770b\u5230\u8fb9\u7f18\u56e0\u5b50Edge Factors\u5927\u7ea6\u5bf9\u5e94\u4e8e\u5bf9\u5e94\u8fb9\u7f18\u88ab\u5206\u5272\u7684\u6b21\u6570\uff0c\u5185\u90e8\u56e0\u5b50Inside Factor\u5bf9\u5e94\u4e2d\u5fc3\u7684\u590d\u6742\u5ea6\u3002<\/p>\n\n\n\n<p>\u8fb9\u7f18\u56e0\u5b50\u53ea\u4f1a\u5f71\u54cd\u5728<strong>\u539f\u672c\u4e09\u89d2\u5f62\u8fb9\u4e0a<\/strong>\u7684\u7ec6\u5206\u3002\u81f3\u4e8e\u5185\u90e8\u590d\u6742\u7684\u56fe\u6848\uff0c\u5c31\u4ea4\u7ed9\u5185\u90e8\u56e0\u5b50Inside Factor\u548c\u5212\u5206\u6a21\u5f0f\u6765\u63a7\u5236\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u201c\u6574\u6570\u5207\u5272\u6a21\u5f0f\u201d\u7684\u66f2\u9762\u7ec6\u5206\u90fd\u662f\u5411\u4e0a\u53d6\u6574\u3002\u6bd4\u59822.1\u53d63\u3002<\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-110-1024x694.png\" alt=\"\" class=\"wp-image-766 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"694\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-110-1024x694.png\" alt=\"\" class=\"wp-image-766 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-110-1024x694.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-110-300x203.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-110-768x520.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-110.png 1166w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u4e00\u5f20\u56fe\u8bf4\u660e\u4e00\u5207\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-111-1024x359.png\" alt=\"\" class=\"wp-image-767 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"359\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-111-1024x359.png\" alt=\"\" class=\"wp-image-767 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-111-1024x359.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-111-300x105.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-111-768x269.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-111.png 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">2.2.4 \u5185\u90e8\u56e0\u5b50 Inside Factor &#8211; SV_InsideTessFactor<\/h3>\n\n\n\n<p>\u8fd8\u662fINTEGER\u6a21\u5f0f\u4e3e\u4f8b\u5b50\u3002\u5185\u90e8\u56e0\u5b50\u53ea\u4f1a\u5f71\u54cd\u5185\u90e8\u56fe\u6848\u7684\u590d\u6742\u7a0b\u5ea6\uff0c\u5177\u4f53\u600e\u4e48\u5f71\u54cd\uff0c\u4e0b\u9762\u8be6\u7ec6\u4ecb\u7ecd\u3002<strong>\u6982\u62ec\u4e00\u4e0b\u5c31\u662f\uff0c\u8fb9\u7f18\u56e0\u5b50\u4f1a\u5f71\u54cd\u6700\u5916\u5c42\u4e0e\u7b2c\u4e00\u5c42\u4e4b\u95f4\u7684\u4e09\u89d2\u5f62\u7ec6\u5206\uff0c\u5185\u90e8\u56e0\u5b50\u4f1a\u5f71\u54cd\u5230\u5e95\u6709\u591a\u5c11\u5c42\uff0c\u800c\u5212\u5206\u6a21\u5f0f\u5219\u662f\u4f1a\u5f71\u54cd\u5185\u90e8\u6bcf\u5c42\u662f\u600e\u4e48\u7ec6\u5206\u7684\u3002<\/strong><\/p>\n\n\n\n<p>\u5047\u8bbeEdge Factors\u8bbe\u7f6e\u4e3a (2,3,4) \uff0c\u53ea\u4fee\u6539Insider Factor\uff0c\u53ef\u4ee5\u89c2\u5bdf\u5230\u4e00\u4e2a\u6709\u8da3\u7684\u6027\u8d28\uff1a\u5f53\u5185\u90e8\u56e0\u5b50 n \u662f\u5076\u6570\u65f6\uff0c\u53ef\u4ee5\u627e\u5230\u4e00\u4e2a\u9876\u70b9\u7684\u5750\u6807\u6070\u597d\u4f4d\u4e8e\u91cd\u5fc3\u7684\u4f4d\u7f6e (13,13,13) \u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e00\u822c\u8fb9\u7f18\u56e0\u5b50Edge Factors\u8bbe\u7f6e\u4e3a\u4e00\u6837\u7684\u6570\u5c31\u597d\u4e86\u3002\u8fd9\u91cc\u8bbe\u7f6e\u6210\u4e0d\u540c\u7684\u6570\uff0c\u56fe\u53ef\u80fd\u4f1a\u6bd4\u8f83\u6df7\u4e71\uff0c\u4f46\u662f\u53ef\u4ee5\u770b\u5230\u6700\u672c\u8d28\u7684\u89c4\u5f8b\u3002<\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-115-1024x967.png\" alt=\"\" class=\"wp-image-771 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"967\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-115-1024x967.png\" alt=\"\" class=\"wp-image-771 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-115-1024x967.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-115-300x283.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-115-768x725.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-115.png 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u8fdb\u4e00\u6b65\u8fd8\u80fd\u89c2\u5bdf\u5230\uff0c\u4efb\u610f\u4e00\u6761\u6700\u9760\u8fd1\u6700\u5916\u5c42\u4e09\u89d2\u5f62\u7684\u8fb9\u7684\u9876\u70b9\u6570\u91cf\u548c\u5185\u90e8\u56e0\u5b50Inside Factor \uff08 n \uff09\u6709\u4e00\u4e2a\u7b49\u91cf\u5173\u7cfb\uff1a n=Numpoint\u22121 \u3002\u5373\uff0c\u8fd9\u6761\u8fb9\u4e0a\u7684\u9876\u70b9\u6570\u6c38\u8fdc\u7b49\u4e8e\u7ec6\u5206\u56e0\u5b50\u51cf 1 \u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-117-1024x538.png\" alt=\"\" class=\"wp-image-773 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"538\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-117-1024x538.png\" alt=\"\" class=\"wp-image-773 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-117-1024x538.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-117-300x158.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-117-768x404.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-117.png 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u6bcf\u4e00\u5c42\u7684\u9876\u70b9\u6570\u91cf\u90fd\u4f1a\u51cf\u5c111\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u7b2c\u4e00\u5c42\uff08\u6700\u5916\u56f4\u7684\u4e0d\u7b97\uff0c\u56e0\u4e3a\u4e0d\u4f1a\u7ec6\u5206\uff09\u4f1a\u6709 n \u4e2a\u9876\u70b9\uff0c\u5411\u5185\u7b2c\u4e8c\u5c42\u4f1a\u6709 n\u22122 \u4e2a\u9876\u70b9\uff0c\u4ee5\u6b64\u7c7b\u63a8\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u7efc\u5408\u4e0a\u9762\u4e09\u4e2a\u89c2\u5bdf\uff0c\u6211\u4eec\u53ef\u4ee5\u5f97\u5230\u4e00\u4e2a\u731c\u6d4b\u548c\u7ed3\u8bba<strong>\uff08\u6ca1\u5565\u7528\uff0c\u4f46\u662f\u95f2\u7740\u6ca1\u4e8b\u7b97\u4e86\u4e00\u4e0b\uff09<\/strong>\u3002\u5185\u90e8\u603b\u9876\u70b9\u6570\u91cf\u53ef\u4ee5\u7528\u516c\u5f0f\u8ba1\u7b97\uff0c\u8fd9\u91cc\u7684n\u5bf9\u5e94\u5185\u90e8\u56e0\u5b50\u7684n-1\uff0c\u9700\u8981\u6ce8\u610f\u4e00\u4e0b\uff0c\u56e0\u4e3a\u5185\u90e8\u56e0\u5b50\u662f\u4ece2\u5f00\u59cb\u53d6\u7684\uff1a a2n=3n2a2n\u22121=3n(n\u22121)+1 \u6700\u7ec8\u53ef\u4ee5\u5316\u7b80\u5408\u5e76\u4e3a\uff1a ak=\u22120.125(\u22121)k+0.75k2+0.125 \u5168\u90e8\u4e3a\u6574\u6570int\u8fd0\u7b97\u7684\u516c\u5f0f\u5982\u4e0b\uff1a ak=\u230a\u2212(\u22121)k+6k2+18\u230b<\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-114-1024x604.png\" alt=\"\" class=\"wp-image-770 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"604\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-114-1024x604.png\" alt=\"\" class=\"wp-image-770 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-114-1024x604.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-114-300x177.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-114-768x453.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-114.png 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">2.2.5 \u5212\u5206\u6a21\u5f0f &#8211; [partitioning(&#8220;_&#8221;)]<\/h3>\n\n\n\n<p>\u4e0a\u9762\u53ea\u8bf4\u4e86\u6700\u7b80\u5355\u7684\u5747\u5300\u5212\u5206integer\uff0c\u8fd9\u79cd\u60c5\u51b5\u4f1a\u4f7f\u7528\u6574\u6570\u500d\u6570\u8fdb\u884c\u7ec6\u5206\u3002\u63a5\u4e0b\u6765\u8bf4\u8bf4\u5176\u4ed6\u51e0\u79cd\u3002<strong>\u7b80\u5355\u7684\u8bf4\uff0cFractional Odd \u548c Fractional Even\u662fInteger\u7684\u8fdb\u9636\u7248\uff0c\u4f46\u662f\u524d\u8005\u662fInteger\u53d6\u5947\u6570\u60c5\u51b5\u4e0b\u7684\u8fdb\u9636\u7248\uff0c\u540e\u8005\u662fInteger\u53d6\u5076\u6570\u60c5\u51b5\u4e0b\u7684\u8fdb\u9636\u7248\u3002\u5177\u4f53\u8fdb\u9636\u5728\u53ef\u4ee5\u7528\u5c0f\u6570\u90e8\u5206\u4f7f\u5f97\u5212\u5206\u4e0d\u518d\u662f\u5e73\u5747\u7684\u3002<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-116-1024x561.png\" alt=\"\" class=\"wp-image-772 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"561\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-116-1024x561.png\" alt=\"\" class=\"wp-image-772 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-116-1024x561.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-116-300x164.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-116-768x421.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-116.png 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>Fractional Odd (\u5206\u6570\u5947\u6570)\uff1aInside Factor\u53ef\u4ee5\u662f\u5206\u6570\uff08\u4e0d\u4f1a\u88abCeil\uff09\uff0c\u4e14\u5206\u6bcd\u4e3a\u5947\u6570\u3002\u6ce8\u610f\u8fd9\u91cc\u8bf4\u7684\u5206\u6bcd\u5176\u5b9e\u662f\u6bcf\u4e00\u4e2a\u9876\u70b9\u7684\u91cd\u5fc3\u5750\u6807\u6240\u8868\u793a\u7684\u5206\u6bcd\u3002\u5947\u6570\u4f5c\u4e3a\u5206\u6bcd\u7684\u7684\u5212\u5206\u65b9\u5f0f\u4e00\u5b9a\u4f1a\u8ba9\u4e00\u4e2a\u9876\u70b9\u843d\u5728\u4e09\u89d2\u5f62\u7684\u91cd\u5fc3\u4e0a\uff0c\u5076\u6570\u7684\u5c31\u4e0d\u662f\u3002\u8fd9\u91cc\u642c\u8fd0\u4e00\u4e0b<a target=\"_blank\" href=\"https:\/\/www.zhihu.com\/people\/ecidevilin\" rel=\"noreferrer noopener\">\u51ef\u5965\u65af<\/a>\u7684\u56fe\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-1.gif\" alt=\"\" class=\"wp-image-774 lazyload\"\/><noscript><img decoding=\"async\" width=\"200\" height=\"128\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-1.gif\" alt=\"\" class=\"wp-image-774 lazyload\"\/><\/noscript><figcaption class=\"wp-element-caption\">\u52a8\u56fe<\/figcaption><\/figure>\n\n\n\n<p>Fractional Even (\u5206\u6570\u5076\u6570)\uff1a\u4e0efractional_odd\u7c7b\u4f3c\uff0c\u4f46\u5206\u6bcd\u4e3a\u5076\u6570\u3002\u5177\u4f53\u600e\u4e48\u9009\u6211\u4e5f\u4e0d\u6e05\u695a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-2.gif\" alt=\"\" class=\"wp-image-775 lazyload\"\/><noscript><img decoding=\"async\" width=\"200\" height=\"128\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-2.gif\" alt=\"\" class=\"wp-image-775 lazyload\"\/><\/noscript><figcaption class=\"wp-element-caption\">\u52a8\u56fe<\/figcaption><\/figure>\n\n\n\n<p>Pow2 (2\u7684\u5e42\u6b21\u65b9)\uff1a\u6b64\u6a21\u5f0f\u4ec5\u5141\u8bb8\u4f7f\u75282\u7684\u5e42\u6b21\u65b9\uff08\u59821, 2, 4, 8\u7b49\uff09\u4f5c\u4e3a\u7ec6\u5206\u7ea7\u522b\u3002\u4e00\u822c\u7528\u5728\u7eb9\u7406\u6620\u5c04\u6216\u9634\u5f71\u8ba1\u7b97\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u7ec6\u5206\u4f18\u5316<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">3.1 \u89c6\u9525\u4f53\u5254\u9664<\/h3>\n\n\n\n<p>\u751f\u6210\u5982\u6b64\u591a\u7684\u9876\u70b9\u4f1a\u5bfc\u81f4\u6027\u80fd\u76f8\u5f53\u7cdf\u7cd5\uff01\u56e0\u6b64\u9700\u8981\u91c7\u7528\u4e00\u4e9b\u65b9\u6cd5\u63d0\u9ad8\u6e32\u67d3\u6548\u7387\u3002\u867d\u7136\u5728T\u5149\u6805\u5316\u4e4b\u524d\uff0c\u4f1a\u5c06\u5728\u89c6\u9525\u4f53\u4e4b\u5916\u7684\u9876\u70b9\u8fdb\u884c\u5254\u9664\uff0c\u4f46\u662f\u5982\u679c\u5728TCS\u4e2d\u63d0\u524d\u628a\u6ca1\u5fc5\u8981\u8fdb\u884c\u7ec6\u5206\u7684Patch\u5254\u9664\u4e86\uff0c\u8fd9\u6837\u5c31\u4f1a\u51cf\u5c11\u66f2\u9762\u7ec6\u5206\u7740\u8272\u5668\u7684\u8ba1\u7b97\u538b\u529b\u3002<\/p>\n\n\n\n<p>\u5728Patch Constant Function\u79cd\u5c06\u66f2\u9762\u7ec6\u5206\u56e0\u5b50\u8bbe\u7f6e\u4e3a0\uff0c\u90a3\u4e48\u66f2\u9762\u7ec6\u5206\u5668\u5c31\u4f1a\u5ffd\u7565\u8fd9\u4e2aPatch\u3002\u4e5f\u5c31\u662f\u8bf4\u8fd9\u91cc\u7684\u5254\u9664\u662f\u5bf9\u4e00\u6574\u4e2aPatch\u5254\u9664\uff0c\u800c\u4e0d\u662f\u89c6\u9525\u4f53\u5254\u9664\u4e2d\u7cbe\u7ec6\u5230\u9876\u70b9\u7684\u5254\u9664\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u6d4b\u8bd5Patch\u4e2d\u7684\u6bcf\u4e00\u4e2a\u70b9\uff0c\u770b\u770b\u4ed6\u4eec\u662f\u5426\u90fd\u5728\u89c6\u91ce\u4e4b\u5916\u3002\u4e3a\u6b64\uff0c\u5c06Patch\u7684\u6bcf\u4e00\u4e2a\u70b9\u8f6c\u6362\u5230\u88c1\u526a\u7a7a\u95f4\u4e2d\u3002\u56e0\u6b64\u6211\u4eec\u9700\u8981\u5728\u9876\u70b9\u7740\u8272\u5668\u4e2d\u8ba1\u7b97\u51fa\u6bcf\u4e00\u4e2a\u70b9\u7684\u88c1\u5207\u7a7a\u95f4\u5750\u6807\u5e76\u4e14\u5c06\u5176\u4f20\u7ed9Hull Stage\u3002\u4f7f\u7528 GetVertexPositionInputs \u5c31\u53ef\u4ee5\u5f97\u5230\u6211\u4eec\u60f3\u8981\u7684\u4e86\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"struct TessellationControlPoint {\n    float4 positionCS : SV_POSITION; \/\/ --  Edited  -- \n    ...\n};\n\nTessellationControlPoint Vertex(Attributes input) {\n    TessellationControlPoint output;\n    ...\n    VertexPositionInputs posnInputs = GetVertexPositionInputs(input.positionOS);\n    ...\n    output.positionCS = posnInputs.positionCS; \/\/ --  Edited  -- \n    ...\n    return output;\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">struct<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> positionCS <\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">SV_POSITION<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ --  Edited  -- <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">Vertex<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">Attributes<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">input<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">VertexPositionInputs<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">posnInputs<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">GetVertexPositionInputs<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">input<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionOS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">posnInputs<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ --  Edited  -- <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u7136\u540e\u5728Patch Constant Function\u4e0a\u65b9\u5199\u4e00\u4e2a\u6d4b\u8bd5\u51fd\u6570\uff0c\u7528\u4e8e\u5224\u65ad\u662f\u5426\u5254\u9664\u8be5\u8865\u4e01\u3002\u8fd9\u91cc\u6682\u65f6\u4f20false\u3002\u8be5\u51fd\u6570\u4f20\u8fdb\u6765\u4e09\u4e2a\u88c1\u5207\u7a7a\u95f4\u7684\u70b9\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ Returns true if it should be clipped due to frustum or winding culling\nbool ShouldClipPatch(float4 p0PositionCS, float4 p1PositionCS, float4 p2PositionCS) {\n    return false;\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ Returns true if it should be clipped due to frustum or winding culling<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">bool<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">ShouldClipPatch<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionCS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">false;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u7136\u540e\u518d\u7f16\u5199 IsOutOfBounds \u51fd\u6570\u6d4b\u8bd5\u67d0\u4e2a\u70b9\u662f\u5426\u8d85\u8fc7\u8fb9\u754c\u3002\u8fb9\u754c\u4e5f\u662f\u53ef\u4ee5\u6307\u5b9a\uff0c\u5728\u53e6\u4e00\u4e2a\u51fd\u6570\u4e2d\u5c06\u8fd9\u4e2a\u65b9\u6cd5\u5229\u7528\u8d77\u6765\uff0c\u5224\u65ad\u67d0\u4e2a\u70b9\u662f\u5426\u5728\u89c6\u9525\u4f53\u4e4b\u5916\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ Returns true if the point is outside the bounds set by lower and higher\nbool IsOutOfBounds(float3 p, float3 lower, float3 higher) {\n    return p.x < lower.x || p.x &gt; higher.x || p.y < lower.y || p.y &gt; higher.y || p.z < lower.z || p.z &gt; higher.z;\n}\n\n\/\/ Returns true if the given vertex is outside the camera fustum and should be culled\nbool IsPointOutOfFrustum(float4 positionCS) {\n    float3 culling = positionCS.xyz;\n    float w = positionCS.w;\n    \/\/ UNITY_RAW_FAR_CLIP_VALUE is either 0 or 1, depending on graphics API\n    \/\/ Most use 0, however OpenGL uses 1\n    float3 lowerBounds = float3(-w, -w, -w * UNITY_RAW_FAR_CLIP_VALUE);\n    float3 higherBounds = float3(w, w, w);\n    return IsOutOfBounds(culling, lowerBounds, higherBounds);\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ Returns true if the point is outside the bounds set by lower and higher<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">bool<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">IsOutOfBounds<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lower<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">higher<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lower<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">||<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">higher<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">||<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lower<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">||<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">higher<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">||<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lower<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">||<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">higher<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ Returns true if the given vertex is outside the camera fustum and should be culled<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">bool<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">IsPointOutOfFrustum<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">culling<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ UNITY_RAW_FAR_CLIP_VALUE is either 0 or 1, depending on graphics API<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ Most use 0, however OpenGL uses 1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lowerBounds<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">float3<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">UNITY_RAW_FAR_CLIP_VALUE<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">higherBounds<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">float3<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">IsOutOfBounds<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">culling<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lowerBounds<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">higherBounds<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u5728\u88c1\u5207\u7a7a\u95f4\uff08Clip Space\uff09\u4e2d\uff0cW\u5206\u91cf\u662f\u5176\u6b21\u5750\u6807\uff0c\u53ef\u4ee5\u51b3\u5b9a\u70b9\u662f\u5426\u5728\u89c6\u9525\u4f53\u4e2d\u3002\u5982\u679cxyz\u8d85\u51fa\u4e86 [-w, w] \u7684\u8303\u56f4\uff0c\u8fd9\u4e9b\u70b9\u5c31\u4f1a\u88ab\u5254\u9664\uff0c\u56e0\u4e3a\u4ed6\u4eec\u5728\u89c6\u9525\u4f53\u4e4b\u5916\u3002\u4e0d\u540c\u7684API\u5728<strong>\u6df1\u5ea6\u7684\u5904\u7406<\/strong>\u4e0a\u6709\u4e0d\u540c\u7684\u903b\u8f91\uff0c\u6211\u4eec\u7528\u8fd9\u4e2a\u5206\u91cf\u4f5c\u4e3a\u8fb9\u754c\u7684\u65f6\u5019\u9700\u8981\u6ce8\u610f\u3002DirectX\u548cVulkan\u4f7f\u7528\u5de6\u624b\u7cfb\uff0cClip\u6df1\u5ea6\u662f [0, 1] \uff0c\u6240\u4ee5UNITY_RAW_FAR_CLIP_VALUE\u662f0\u3002OpenGL\u662f\u53f3\u624b\u7cfb\uff0cClip\u6df1\u5ea6\u8303\u56f4 [-1, 1] \uff0cUNITY_RAW_FAR_CLIP_VALUE\u662f1\u3002<\/p>\n\n\n\n<p>\u51c6\u5907\u597d\u8fd9\u4e9b\u540e\uff0c\u5c31\u53ef\u4ee5\u5224\u65ad\u4e00\u4e2aPatch\u662f\u5426\u9700\u8981\u5254\u9664\u4e86\u3002\u56de\u5230\u521a\u5f00\u59cb\u7684\u51fd\u6570\uff0c\u5728\u8fd9\u4e2a\u51fd\u6570\u4e2d\u5224\u65ad\u4e00\u4e2aPatch\u7684\u6240\u6709\u70b9\u662f\u5426\u9700\u8981\u5254\u9664\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ Returns true if it should be clipped due to frustum or winding culling\nbool ShouldClipPatch(float4 p0PositionCS, float4 p1PositionCS, float4 p2PositionCS) {\n    bool allOutside = IsPointOutOfFrustum(p0PositionCS) &amp;&amp;\n        IsPointOutOfFrustum(p1PositionCS) &amp;&amp;\n        IsPointOutOfFrustum(p2PositionCS); \/\/ --  Edited  -- \n    return allOutside; \/\/ --  Edited  -- \n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ Returns true if it should be clipped due to frustum or winding culling<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">bool<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">ShouldClipPatch<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionCS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">bool<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">allOutside<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">IsPointOutOfFrustum<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">&amp;&amp;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #88C0D0\">IsPointOutOfFrustum<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">&amp;&amp;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #88C0D0\">IsPointOutOfFrustum<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p2PositionCS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ --  Edited  -- <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">allOutside<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ --  Edited  -- <\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">3.2 \u80cc\u9762\u5254\u9664<\/h3>\n\n\n\n<p>Patch\u9664\u4e86\u7ecf\u5386\u89c6\u9525\u4f53\u5254\u9664\uff0c\u8fd8\u53ef\u4ee5\u505a\u4e00\u4e2a\u80cc\u9762\u5254\u9664\u3002\u7528\u6cd5\u5411\u91cf\u6765\u5224\u65adPatch\u662f\u5426\u9700\u8981\u5254\u9664\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-118-1024x576.png\" alt=\"\" class=\"wp-image-776 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-118-1024x576.png\" alt=\"\" class=\"wp-image-776 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-118-1024x576.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-118-300x169.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-118-768x432.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-118.png 1400w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><figcaption class=\"wp-element-caption\">img<\/figcaption><\/figure>\n\n\n\n<p>\u7528\u4e24\u4e2a\u5411\u91cf\u505a\u53c9\u79ef\u5c31\u5f97\u5230\u6cd5\u5411\u91cf\u3002\u7531\u4e8e\u5f53\u524d\u5728Clip\u7a7a\u95f4\uff0c\u9700\u8981\u505a\u4e00\u4e2a\u900f\u89c6\u9664\u6cd5\uff0c\u5f97\u5230NDC\uff0c\u8fd9\u4e2a\u8303\u56f4\u5e94\u8be5\u662f [-1,1] \u7684\u3002\u9700\u8981\u8f6c\u6362\u5230NDC\u7684\u539f\u56e0\u662f\uff0c\u5728Clip\u7a7a\u95f4\u4e2d\u7684\u4f4d\u7f6e\u662f\u975e\u7ebf\u6027\u7684\uff0c\u8fd9\u6709\u53ef\u80fd\u5bfc\u81f4\u9876\u70b9\u7684\u4f4d\u7f6e\u7684\u626d\u66f2\uff0c\u8f6c\u6362\u5230NDC\u8fd9\u6837\u7684\u7ebf\u6027\u7a7a\u95f4\u80fd\u66f4\u52a0\u51c6\u786e\u7684\u5224\u65ad\u9876\u70b9\u7684\u524d\u540e\u5173\u7cfb\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ Returns true if the points in this triangle are wound counter-clockwise\nbool ShouldBackFaceCull(float4 p0PositionCS, float4 p1PositionCS, float4 p2PositionCS) {\n    float3 point0 = p0PositionCS.xyz \/ p0PositionCS.w;\n    float3 point1 = p1PositionCS.xyz \/ p1PositionCS.w;\n    float3 point2 = p2PositionCS.xyz \/ p2PositionCS.w;\n    float3 normal = cross(point1 - point0, point2 - point0);\n    return dot(normal, float3(0, 0, 1)) < 0;\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ Returns true if the points in this triangle are wound counter-clockwise<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">bool<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">ShouldBackFaceCull<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionCS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point0<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point1<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">normal<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">cross<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">point1<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point0<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">dot<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">normal<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">float3<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">)) <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u4e0a\u9762\u7684\u4ee3\u7801\u8fd8\u5b58\u5728\u4e00\u4e2a\u8de8\u5e73\u53f0\u95ee\u9898\u3002\u89c2\u5bdf\u65b9\u5411\u5728\u4e0d\u540cAPI\u7684\u671d\u5411\u662f\u4e0d\u540c\u7684\uff0c\u56e0\u6b64\u4fee\u6539\u4e00\u4e0b\u4ee3\u7801\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ In clip space, the view direction is float3(0, 0, 1), so we can just test the z coord\n#if UNITY_REVERSED_Z\n    return cross(point1 - point0, point2 - point0).z < 0;\n#else \/\/ In OpenGL, the test is reversed\n    return cross(point1 - point0, point2 - point0).z &gt; 0;\n#endif\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ In clip space, the view direction is float3(0, 0, 1), so we can just test the z coord<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">#<\/span><span style=\"color: #81A1C1\">if<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">UNITY_REVERSED_Z<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">cross<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">point1<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point0<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">#<\/span><span style=\"color: #81A1C1\">else<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ In OpenGL, the test is reversed<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">cross<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">point1<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point0<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">#<\/span><span style=\"color: #D8DEE9\">endif<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u6700\u540e\u7684\u6700\u540e\uff0c\u5728 ShouldClipPatch \u4e2d\u6dfb\u52a0\u521a\u5199\u597d\u7684\u51fd\u6570\u7528\u4e8e\u5224\u65ad\u80cc\u9762\u5254\u9664\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ Returns true if it should be clipped due to frustum or winding culling\nbool ShouldClipPatch(float4 p0PositionCS, float4 p1PositionCS, float4 p2PositionCS) {\n    bool allOutside = IsPointOutOfFrustum(p0PositionCS) &amp;&amp;\n        IsPointOutOfFrustum(p1PositionCS) &amp;&amp;\n        IsPointOutOfFrustum(p2PositionCS);\n    return allOutside || ShouldBackFaceCull(p0PositionCS, p1PositionCS, p2PositionCS); \/\/ --  Edited  -- \n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ Returns true if it should be clipped due to frustum or winding culling<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">bool<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">ShouldClipPatch<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionCS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">bool<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">allOutside<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">IsPointOutOfFrustum<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">&amp;&amp;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #88C0D0\">IsPointOutOfFrustum<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">&amp;&amp;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #88C0D0\">IsPointOutOfFrustum<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p2PositionCS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">allOutside<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">||<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">ShouldBackFaceCull<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionCS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ --  Edited  -- <\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u7136\u540e\u5728 PatchConstantFunction \u4e2d\u5c06\u9700\u8981\u5254\u9664\u7684Patch\u7684\u9876\u70b9\u56e0\u5b50\u8bbe\u7f6e\u4e3a0 \u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"...\nif (ShouldClipPatch(patch[0].positionCS, patch[1].positionCS, patch[2].positionCS)) {\n        f.edge[0] = f.edge[1] = f.edge[2] = f.inside = 0; \/\/ Cull the patch\n}\n...\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">if<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #88C0D0\">ShouldClipPatch<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #D8DEE9FF\">)) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">inside<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ Cull the patch<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">...<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">3.3 \u589e\u52a0\u5bb9\u5dee<\/h3>\n\n\n\n<p>\u4f60\u53ef\u80fd\u60f3\u9a8c\u8bc1\u4ee3\u7801\u6b63\u786e\u6027\uff0c\u4e5f\u53ef\u80fd\u4f1a\u6709\u4e00\u4e9b\u610f\u5916\u5254\u9664\u7684\u60c5\u51b5\u3002\u6b64\u65f6\u589e\u52a0\u4e00\u4e2a\u5bb9\u5deetolerance\u662f\u4e00\u4e2a\u7075\u6d3b\u7684\u529e\u6cd5\u3002<\/p>\n\n\n\n<p>\u9996\u5148\u662f\u89c6\u9525\u4f53\u5254\u9664\u5bb9\u5dee\u3002\u5982\u679c\u5bb9\u5dee\u662f\u6b63\u503c\uff0c\u90a3\u4e48\u5254\u9664\u8fb9\u754c\u4f1a\u6269\u5c55\uff0c\u8fd9\u6837\u4e00\u4e9b\u4f4d\u4e8e\u89c6\u9525\u4f53\u8fb9\u7f18\u9644\u8fd1\u7684\u7269\u4f53\u5373\u4f7f\u90e8\u5206\u8d8a\u754c\u4e5f\u4e0d\u4f1a\u88ab\u5254\u9664\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u51cf\u5c11\u56e0\u4e3a\u5c0f\u7684\u89c6\u89d2\u53d8\u52a8\u6216\u7269\u4f53\u52a8\u6001\u800c\u9891\u7e41\u53d8\u5316\u7684\u5254\u9664\u72b6\u6001\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ Returns true if the given vertex is outside the camera fustum and should be culled\nbool IsPointOutOfFrustum(float4 positionCS, float tolerance) {\n    float3 culling = positionCS.xyz;\n    float w = positionCS.w;\n    \/\/ UNITY_RAW_FAR_CLIP_VALUE is either 0 or 1, depending on graphics API\n    \/\/ Most use 0, however OpenGL uses 1\n    float3 lowerBounds = float3(-w - tolerance, -w - tolerance, -w * UNITY_RAW_FAR_CLIP_VALUE - tolerance);\n    float3 higherBounds = float3(w + tolerance, w + tolerance, w + tolerance);\n    return IsOutOfBounds(culling, lowerBounds, higherBounds);\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ Returns true if the given vertex is outside the camera fustum and should be culled<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">bool<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">IsPointOutOfFrustum<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tolerance<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">culling<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ UNITY_RAW_FAR_CLIP_VALUE is either 0 or 1, depending on graphics API<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ Most use 0, however OpenGL uses 1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lowerBounds<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">float3<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tolerance<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tolerance<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">UNITY_RAW_FAR_CLIP_VALUE<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tolerance<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">higherBounds<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">float3<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tolerance<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tolerance<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tolerance<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">IsOutOfBounds<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">culling<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lowerBounds<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">higherBounds<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u63a5\u7740\u8c03\u6574\u80cc\u9762\u5254\u9664\u3002\u5728\u5b9e\u9645\u64cd\u4f5c\u4e2d\uff0c\u901a\u8fc7\u4e0e\u5bb9\u5dee\u800c\u4e0d\u662f\u96f6\u8fdb\u884c\u6bd4\u8f83\uff0c\u53ef\u4ee5\u907f\u514d\u7531\u4e8e\u6570\u503c\u8ba1\u7b97\u7cbe\u5ea6\u5e26\u6765\u7684\u95ee\u9898\u3002\u5982\u679c\u70b9\u79ef\u7ed3\u679c\u5c0f\u4e8e\u67d0\u4e2a\u5c0f\u7684\u6b63\u503c\uff08\u5bb9\u5dee\uff09\uff0c\u800c\u4e0d\u662f\u4e25\u683c\u5c0f\u4e8e\u96f6\uff0c\u90a3\u4e48\u56fe\u5143\u88ab\u89c6\u4e3a\u80cc\u9762\u3002\u8fd9\u79cd\u65b9\u6cd5\u63d0\u4f9b\u4e86\u989d\u5916\u7684\u7f13\u51b2\u533a\uff0c\u786e\u4fdd\u53ea\u6709\u660e\u786e\u7684\u80cc\u9762\u56fe\u5143\u88ab\u5254\u9664\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ Returns true if the points in this triangle are wound counter-clockwise\nbool ShouldBackFaceCull(float4 p0PositionCS, float4 p1PositionCS, float4 p2PositionCS, float tolerance) {\n    float3 point0 = p0PositionCS.xyz \/ p0PositionCS.w;\n    float3 point1 = p1PositionCS.xyz \/ p1PositionCS.w;\n    float3 point2 = p2PositionCS.xyz \/ p2PositionCS.w;\n    \/\/ In clip space, the view direction is float3(0, 0, 1), so we can just test the z coord\n#if UNITY_REVERSED_Z\n    return cross(point1 - point0, point2 - point0).z < -tolerance;\n#else \/\/ In OpenGL, the test is reversed\n    return cross(point1 - point0, point2 - point0).z &gt; tolerance;\n#endif\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ Returns true if the points in this triangle are wound counter-clockwise<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">bool<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">ShouldBackFaceCull<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tolerance<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point0<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point1<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ In clip space, the view direction is float3(0, 0, 1), so we can just test the z coord<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">#<\/span><span style=\"color: #81A1C1\">if<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">UNITY_REVERSED_Z<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">cross<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">point1<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point0<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">tolerance<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">#<\/span><span style=\"color: #81A1C1\">else<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ In OpenGL, the test is reversed<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">cross<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">point1<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">point0<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tolerance<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">#<\/span><span style=\"color: #D8DEE9\">endif<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u53ef\u4ee5\u5728\u6750\u8d28\u9762\u677f\u4e2d\u66b4\u9732\u4e00\u4e2aRange\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ .shader\nProperties{\n    _tolerance(&quot;_tolerance&quot;,Range(-0.002,0.001)) = 0\n    ...\n}\n\/\/ .hlsl\nfloat _tolerance;\n...\n\/\/ Returns true if it should be clipped due to frustum or winding culling\nbool ShouldClipPatch(float4 p0PositionCS, float4 p1PositionCS, float4 p2PositionCS) {\n    bool allOutside = IsPointOutOfFrustum(p0PositionCS, _tolerance) &amp;&amp;\n        IsPointOutOfFrustum(p1PositionCS, _tolerance) &amp;&amp;\n        IsPointOutOfFrustum(p2PositionCS, _tolerance); \/\/ --  Edited  -- \n    return allOutside || ShouldBackFaceCull(p0PositionCS, p1PositionCS, p2PositionCS,_tolerance); \/\/ --  Edited  -- \n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ .shader<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">Properties<\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #88C0D0\">_tolerance<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">_tolerance<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #88C0D0\">Range<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #B48EAD\">0.002<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #B48EAD\">0.001<\/span><span style=\"color: #D8DEE9FF\">)) <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ .hlsl<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_tolerance<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ Returns true if it should be clipped due to frustum or winding culling<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">bool<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">ShouldClipPatch<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionCS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">bool<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">allOutside<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">IsPointOutOfFrustum<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_tolerance<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">&amp;&amp;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #88C0D0\">IsPointOutOfFrustum<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_tolerance<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">&amp;&amp;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #88C0D0\">IsPointOutOfFrustum<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p2PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_tolerance<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ --  Edited  -- <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">allOutside<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">||<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">ShouldBackFaceCull<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9\">_tolerance<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ --  Edited  -- <\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-120.png\" alt=\"\" class=\"wp-image-778 lazyload\"\/><noscript><img decoding=\"async\" width=\"994\" height=\"434\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-120.png\" alt=\"\" class=\"wp-image-778 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-120.png 994w, https:\/\/remoooo.com\/wp-content\/uploads\/image-120-300x131.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-120-768x335.png 768w\" sizes=\"(max-width: 994px) 100vw, 994px\" \/><\/noscript><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">3.4 \u52a8\u6001\u7ec6\u5206\u56e0\u5b50<\/h3>\n\n\n\n<p>\u76ee\u524d\u4e3a\u6b62\uff0c\u6211\u4eec\u7684\u7b97\u6cd5\u662f\u65e0\u5dee\u522b\u5730\u7ec6\u5206\u6240\u6709\u7684\u8868\u9762\u3002\u4f46\u5728\u4e00\u4e2a\u590d\u6742\u7684Mesh\u4e2d\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u5927\u5c0f\u9762\u7684\u60c5\u51b5\uff0c\u5373<strong>Mesh\u9762\u79ef\u4e0d\u5747<\/strong>\u7684\u60c5\u51b5\u3002\u5927\u9762\u7531\u4e8e\u9762\u79ef\u5927\uff0c\u5728\u89c6\u89c9\u4e0a\u66f4\u4e3a\u660e\u663e\uff0c\u9700\u8981\u66f4\u591a\u7684\u7ec6\u5206\u6765\u4fdd\u8bc1\u8868\u9762\u7684\u5e73\u6ed1\u5ea6\u548c\u7ec6\u8282\u3002\u5c0f\u9762\u7531\u4e8e\u9762\u79ef\u5c0f\uff0c\u53ef\u4ee5\u8003\u8651\u51cf\u5c11\u8fd9\u4e2a\u90e8\u5206\u7684\u7ec6\u5206\u7a0b\u5ea6\uff0c\u4e0d\u4f1a\u5bf9\u89c6\u89c9\u6548\u679c\u5e26\u6765\u592a\u5927\u7684\u5f71\u54cd\u3002\u6839\u636e\u53d8\u957f\u6765\u52a8\u6001\u6539\u53d8\u56e0\u5b50\u662f\u6bd4\u8f83\u5e38\u89c1\u7684\u65b9\u6cd5\u3002\u8bbe\u7f6e\u4e00\u4e2a\u7b97\u6cd5\uff0c\u8ba9\u8fb9\u957f\u8f83\u957f\u7684\u9762\u62e5\u6709\u66f4\u9ad8\u7684\u7ec6\u5206\u56e0\u5b50\u3002<\/p>\n\n\n\n<p>\u9664\u4e86Mesh\u81ea\u8eab\u7684\u5927\u5c0f\u9762\u4ee5\u5916\uff0c<strong>\u6444\u50cf\u673a\u4e0ePatch\u7684\u8ddd\u79bb<\/strong>\u4e5f\u53ef\u4ee5\u4f5c\u4e3a\u52a8\u6001\u6539\u53d8\u56e0\u5b50\u7684\u56e0\u7d20\u3002\u8ddd\u79bb\u6444\u50cf\u673a\u8f83\u8fdc\u7684\u5bf9\u8c61\u53ef\u4ee5\u964d\u4f4e\u7ec6\u5206\u56e0\u5b50\uff0c\u56e0\u4e3a\u5728\u5c4f\u5e55\u4e0a\u5360\u636e\u7684\u50cf\u7d20\u6570\u8f83\u5c11\u3002\u8fd8\u53ef\u4ee5\u6839\u636e<strong>\u7528\u6237\u7684\u89c6\u89d2\u548c\u89c6\u7ebf\u65b9\u5411<\/strong>\uff0c\u53ef\u4ee5\u4f18\u5148\u7ec6\u5206\u90a3\u4e9b\u9762\u5411\u6444\u50cf\u673a\u7684\u9762\uff0c\u800c\u5bf9\u80cc\u5bf9\u6444\u50cf\u673a\u6216\u4fa7\u9762\u7684\u90e8\u5206\u964d\u4f4e\u7ec6\u5206\u7a0b\u5ea6\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3.4.1 \u56fa\u5b9a\u7684\u7ec6\u5206\u7f29\u653e<\/h3>\n\n\n\n<p>\u83b7\u53d6\u4e24\u4e2a\u9876\u70b9\u7684\u8ddd\u79bb\u3002\u8ddd\u79bb\u8d8a\u5927\uff0c\u7ec6\u5206\u7684\u56e0\u5b50\u5c31\u8d8a\u5927\u3002scale\u66b4\u9732\u5728\u63a7\u5236\u9762\u677f\u5c06\u5176\u8bbe\u7f6e\u4e3a [0,1] \uff0cscale\u662f1\u65f6\uff0c\u7ec6\u5206\u56e0\u5b50\u76f4\u63a5\u7531\u4e24\u70b9\u8ddd\u79bb\u8d21\u732e\u3002scale\u8d8a\u63a5\u8fd10\uff0c\u7ec6\u5206\u56e0\u5b50\u8d8a\u5927\u3002\u53e6\u5916\u52a0\u4e0a\u4e00\u4e2a\u521d\u503cbias\u3002\u6700\u540e\u8ba9\u56e0\u6b64\u53d61\u6216\u4ee5\u4e0a\u7684\u6570\uff0c\u786e\u4fdd\u51c6\u786e\u6027\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ Calculate the tessellation factor for an edge\nfloat EdgeTessellationFactor(float scale, float bias, float3 p0PositionWS, float3 p1PositionWS) {\n    float factor = distance(p0PositionWS, p1PositionWS) \/ scale;\n\n    return max(1, factor + bias);\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ Calculate the tessellation factor for an edge<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">scale<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">factor<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">distance<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">scale<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">max<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">factor<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bias<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u7136\u540e\u4fee\u6539\u6750\u8d28\u9762\u677f\u548cPatch Constant Function\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u91c7\u7528\u8fb9\u7f18\u7ec6\u5206\u56e0\u5b50\u7684\u5e73\u5747\u503c\u4f5c\u4e3a\u5185\u90e8\u7ec6\u5206\u56e0\u5b50\uff0c\u89c6\u89c9\u6548\u679c\u6bd4\u8f83\u8fde\u8d2f\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ .shader\nProperties{\n    ...\n    _TessellationBias(&quot;_TessellationBias&quot;, Range(-1,5)) = 1\n     _TessellationFactor(&quot;_TessellationFactor&quot;, Range(0,1)) = 0\n}\n\n\/\/ .hlsl\n\nf.edge[0] = EdgeTessellationFactor(_TessellationFactor, _TessellationBias, patch[1].positionWS, patch[2].positionWS);\nf.edge[1] = EdgeTessellationFactor(_TessellationFactor, _TessellationBias, patch[2].positionWS, patch[0].positionWS);\nf.edge[2] = EdgeTessellationFactor(_TessellationFactor, _TessellationBias, patch[0].positionWS, patch[1].positionWS);\nf.inside = (f.edge[0] + f.edge[1] + f.edge[2]) \/ 3.0;\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ .shader<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">Properties<\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #88C0D0\">_TessellationBias<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">_TessellationBias<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">Range<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #B48EAD\">5<\/span><span style=\"color: #D8DEE9FF\">)) <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">     <\/span><span style=\"color: #88C0D0\">_TessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">_TessellationFactor<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">Range<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">)) <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ .hlsl<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">_TessellationFactor<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationBias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">_TessellationFactor<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationBias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">_TessellationFactor<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationBias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">inside<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]) <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3.0<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u4e0d\u540c\u5c3a\u5bf8\u7684\u7247\u5143\u5176\u7ec6\u5206\u7a0b\u5ea6\u4f1a\u52a8\u6001\u53d8\u5316\uff0c\u6548\u679c\u5982\u4e0b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-119-1024x520.png\" alt=\"\" class=\"wp-image-777 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"520\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-119-1024x520.png\" alt=\"\" class=\"wp-image-777 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-119-1024x520.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-119-300x152.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-119-768x390.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-119.png 1240w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u5bf9\u4e86\uff0c\u5982\u679c\u53d1\u73b0\u4f60\u7684\u5185\u90e8\u56e0\u5b50\u56fe\u6848\u975e\u5e38\u5947\u602a\uff0c\u8fd9\u53ef\u80fd\u662f\u7f16\u8bd1\u5668\u5bfc\u81f4\u7684\uff0c\u5c1d\u8bd5\u5c06\u5185\u90e8\u56e0\u5b50\u4ee3\u7801\u4fee\u6539\u4e3a\u4ee5\u4e0b\u5c31\u53ef\u4ee5\u89e3\u51b3\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"f.inside = ( \/\/ If the compiler doesn't play nice...\n  EdgeTessellationFactor(_TessellationFactor, _TessellationBias, patch[1].positionWS, patch[2].positionWS) + \n  EdgeTessellationFactor(_TessellationFactor, _TessellationBias, patch[2].positionWS, patch[0].positionWS) + \n  EdgeTessellationFactor(_TessellationFactor, _TessellationBias, patch[0].positionWS, patch[1].positionWS)\n  ) \/ 3.0;\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">inside<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> ( <\/span><span style=\"color: #616E88\">\/\/ If the compiler doesn&#39;t play nice...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">_TessellationFactor<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationBias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">_TessellationFactor<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationBias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">_TessellationFactor<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationBias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  ) <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3.0<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">3.4.2 \u5c4f\u5e55\u7a7a\u95f4\u7ec6\u5206\u7f29\u653e<\/h3>\n\n\n\n<p>\u63a5\u4e0b\u6765\u52a0\u5165\u6444\u50cf\u673a\u8ddd\u79bb\u7684\u5224\u65ad\u3002\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5<strong>\u7528\u5c4f\u5e55\u7a7a\u95f4\u7684\u8ddd\u79bb\u6765\u8c03\u6574\u7ec6\u5206\u7a0b\u5ea6<\/strong>\uff0c\u8fd9\u6837\u5b8c\u7f8e\u5730\u540c\u65f6\u5904\u7406\u4e86\u5927\u5c0f\u9762+\u5c4f\u5e55\u8ddd\u79bb\u7684\u95ee\u9898\uff01<\/p>\n\n\n\n<p>\u7531\u4e8e\u6211\u4eec\u5df2\u7ecf\u6709\u4e86Clip\u7a7a\u95f4\u7684\u6570\u636e\u3002\u7531\u4e8e\u5c4f\u5e55\u7a7a\u95f4\u4e0eNDC\u7a7a\u95f4\u975e\u5e38\u76f8\u4f3c\uff0c\u53ea\u9700\u8981\u6362\u5230NDC\u5c31\u53ef\u4ee5\u4e86\uff0c\u5373\u505a\u4e00\u4e2a\u900f\u89c6\u9664\u6cd5\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"float EdgeTessellationFactor(float scale, float bias, float3 p0PositionWS, float4 p0PositionCS, float3 p1PositionWS, float4 p1PositionCS) {\n    float factor = distance(p0PositionCS.xyz \/ p0PositionCS.w, p1PositionCS.xyz \/ p1PositionCS.w) \/ scale;\n\n    return max(1, factor + bias);\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">scale<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">factor<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">distance<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">scale<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">max<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">factor<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bias<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u63a5\u4e0b\u6765\u5728Patch Constant Function\u4e2d\u4f20\u5165Clip\u7a7a\u95f4\u7684\u5750\u6807\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"f.edge[0] = EdgeTessellationFactor(_TessellationFactor, _TessellationBias, \n  patch[1].positionWS, patch[1].positionCS, patch[2].positionWS, patch[2].positionCS);\nf.edge[1] = EdgeTessellationFactor(_TessellationFactor, _TessellationBias, \n  patch[2].positionWS, patch[2].positionCS, patch[0].positionWS, patch[0].positionCS);\nf.edge[2] = EdgeTessellationFactor(_TessellationFactor, _TessellationBias, \n  patch[0].positionWS, patch[0].positionCS, patch[1].positionWS, patch[1].positionCS);\nf.inside = (f.edge[0] + f.edge[1] + f.edge[2]) \/ 3.0;\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">_TessellationFactor<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationBias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">_TessellationFactor<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationBias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">_TessellationFactor<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationBias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">inside<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]) <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3.0<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u5f53\u524d\u7684\u6548\u679c\u76f8\u5f53\u7684\u4e0d\u9519\uff0c\u968f\u7740\u6444\u50cf\u673a\u7684\u8ddd\u79bb\uff08\u5c4f\u5e55\u7a7a\u95f4\u7684\u8ddd\u79bb\uff09\u7684\u53d8\u5316\uff0c\u7ec6\u5206\u7a0b\u5ea6\u4e5f\u4f1a\u52a8\u6001\u53d8\u5316\u3002\u5982\u679c\u4f7f\u7528INTEGER\u610f\u5916\u7684\u5212\u5206\u6a21\u5f0f\uff0c\u4f1a\u5f97\u5230\u66f4\u8fde\u8d2f\u7684\u6548\u679c\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-122-1024x482.png\" alt=\"\" class=\"wp-image-780 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"482\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-122-1024x482.png\" alt=\"\" class=\"wp-image-780 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-122-1024x482.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-122-300x141.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-122-768x362.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-122.png 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u8fd8\u6709\u4e00\u4e9b\u5730\u65b9\u53ef\u4ee5\u6539\u8fdb\u3002\u6bd4\u5982\u7f29\u653e\u7cfb\u6570\u7684\u5355\u4f4d\u3002\u65b9\u624d\u6211\u4eec\u5c06\u5176\u63a7\u5236\u5728 [0,1] \uff0c\u5176\u5b9e\u5e76\u4e0d\u662f\u5f88\u9002\u5408\u6211\u4eec\u53bb\u8c03\u6574\u3002\u6211\u4eec\u4e58\u4e0a\u4e00\u4e2a\u5c4f\u5e55\u5206\u8fa8\u7387\uff0c\u7136\u540e\u5c06\u7f29\u653e\u7cfb\u6570\u8303\u56f4\u6539\u4e3a [0,1080] \uff0c\u66f4\u65b9\u4fbf\u6211\u4eec\u8c03\u6574\u3002\u7136\u540e\u4fee\u6539\u4e00\u4e0b\u6750\u8d28\u9762\u677f\u5c5e\u6027\u3002\u73b0\u5728\u5c31\u662f\u4ee5\u50cf\u7d20\u4e3a\u5355\u4f4d\u7684\u6bd4\u4f8b\u4e86\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ .hlsl\nfloat factor = distance(p0PositionCS.xyz \/ p0PositionCS.w, p1PositionCS.xyz \/ p1PositionCS.w) * _ScreenParams.y \/ scale;\n\n\/\/ .shader\n_TessellationFactor(&quot;_TessellationFactor&quot;,Range(0,1080)) = 320\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ .hlsl<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">factor<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">distance<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionCS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_ScreenParams<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">scale<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ .shader<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">_TessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">_TessellationFactor<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #88C0D0\">Range<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #B48EAD\">1080<\/span><span style=\"color: #D8DEE9FF\">)) <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">320<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-121-1024x664.png\" alt=\"\" class=\"wp-image-779 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"664\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-121-1024x664.png\" alt=\"\" class=\"wp-image-779 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-121-1024x664.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-121-300x195.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-121-768x498.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-121.png 1400w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">3.4.3 \u76f8\u673a\u8ddd\u79bb\u7ec6\u5206\u7f29\u653e<\/h3>\n\n\n\n<p>\u6211\u4eec\u600e\u4e48\u91c7\u7528\u76f8\u673a\u8ddd\u79bb\u7f29\u653e\u5462\uff1f\u975e\u5e38\u7b80\u5355\uff0c\u8ba1\u7b97 \u300c\u4e24\u70b9\u95f4\u7684\u8ddd\u79bb\u300d\u4e0e\u300c\u4e24\u9876\u70b9\u7684\u4e2d\u70b9\u4e0e\u76f8\u673a\u4f4d\u7f6e\u7684\u8ddd\u79bb\u300d\u7684\u6bd4\u503c\u3002\u6bd4\u503c\u8d8a\u5927\u8bf4\u660e\u5360\u636e\u5c4f\u5e55\u7684\u7a7a\u95f4\u5c31\u8d8a\u5927\uff0c\u9700\u8981\u66f4\u591a\u7684\u7ec6\u5206\u7a0b\u5ea6\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ .hlsl\nfloat EdgeTessellationFactor(float scale, float bias, float3 p0PositionWS, float3 p1PositionWS) {\n    float length = distance(p0PositionWS, p1PositionWS);\n    float distanceToCamera = distance(GetCameraPositionWS(), (p0PositionWS + p1PositionWS) * 0.5);\n    float factor = length \/ (scale * distanceToCamera * distanceToCamera);\n    return max(1, factor + bias);\n}\n...\n        f.edge[0] = EdgeTessellationFactor(_TessellationFactor, _TessellationBias, patch[1].positionWS, patch[2].positionWS);\n        f.edge[1] = EdgeTessellationFactor(_TessellationFactor, _TessellationBias, patch[2].positionWS, patch[0].positionWS);\n        f.edge[2] = EdgeTessellationFactor(_TessellationFactor, _TessellationBias, patch[0].positionWS, patch[1].positionWS);\n\n\/\/ .shader\n_TessellationFactor(&quot;_TessellationFactor&quot;,Range(0, 1)) = 0.02\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ .hlsl<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">scale<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">length<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">distance<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">distanceToCamera<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">distance<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #88C0D0\">GetCameraPositionWS<\/span><span style=\"color: #D8DEE9FF\">()<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.5<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">factor<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">length<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">scale<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">distanceToCamera<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">distanceToCamera<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">max<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">factor<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bias<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">_TessellationFactor<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationBias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">_TessellationFactor<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationBias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">_TessellationFactor<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationBias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ .shader<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">_TessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">_TessellationFactor<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #88C0D0\">Range<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">)) <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.02<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u6ce8\u610f\uff0c\u6b64\u65f6\u7684\u7f29\u653e\u56e0\u5b50\u5355\u4f4d\u4e0d\u518d\u662f\u50cf\u7d20\uff0c\u800c\u662f\u7528\u6700\u5f00\u59cb\u7684 [0,1] \u3002\u56e0\u4e3a\u8fd9\u4e2a\u65b9\u6cd5\uff0c\u5c4f\u5e55\u50cf\u7d20\u610f\u4e49\u4e0d\u662f\u7279\u522b\u5927\uff0c\u6240\u4ee5\u5c31\u4e0d\u7528\u4e86\u3002\u5e76\u4e14\u7528\u56de\u4e86\u4e16\u754c\u5750\u6807\u3002<\/p>\n\n\n\n<p>\u5c4f\u5e55\u7a7a\u95f4\u7ec6\u5206\u7f29\u653e\u548c\u76f8\u673a\u8ddd\u79bb\u7ec6\u5206\u7f29\u653e\u7684\u7ed3\u679c\u6bd4\u8f83\u76f8\u4f3c\uff0c\u4e00\u822c\u53ef\u4ee5\u5f00\u653e\u4e00\u4e2a\u5b8f\u6765\u5207\u6362\u4e0a\u9762\u51e0\u79cd\u52a8\u6001\u56e0\u5b50\u7684\u6a21\u5f0f\u3002\u8fd9\u91cc\u5c31\u7559\u7ed9\u8bfb\u8005\u81ea\u884c\u5b8c\u6210\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3.5 \u6307\u5b9a\u7ec6\u5206\u56e0\u5b50<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">3.5.1 \u9876\u70b9\u5b58\u50a8\u7ec6\u5206\u56e0\u5b50<\/h3>\n\n\n\n<p>\u4e0a\u4e00\u8282\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e0d\u540c\u7684\u7b56\u7565\u731c\u6d4b\u9002\u5f53\u7684\u7ec6\u5206\u56e0\u5b50\u3002\u5982\u679c\u6211\u4eec\u786e\u5207\u77e5\u9053\u8be5Mesh\u5e94\u8be5\u600e\u4e48\u7ec6\u5206\uff0c\u90a3\u4e48\u53ef\u4ee5\u5728Mesh\u4e2d\u5b58\u50a8\u8fd9\u4e9b\u7ec6\u5206\u56e0\u5b50\u7684\u7cfb\u6570\u3002\u7531\u4e8e\u7cfb\u6570\u53ea\u9700\u8981\u4e00\u4e2afloat\uff0c\u56e0\u6b64\u53ea\u9700\u8981\u7528\u5230\u4e00\u4e2a\u989c\u8272\u901a\u9053\u5c31\u53ef\u4ee5\u4e86\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u4f2a\u4ee3\u7801\uff0c\u611f\u53d7\u4e00\u4e0b\u5c31\u884c\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"float EdgeTessellationFactor(float scale, float bias, float multiplier) {\n    ...\n    return max(1, (factor + bias) * multiplier);\n}\n\n...\n\/\/ PCF()\n[unroll] for (int i = 0; i < 3; i++) {\n    multipliers[i] = patch[i].color.g;\n}\n\/\/ Calculate tessellation factors\nf.edge[0] = EdgeTessellationFactor(_TessellationFactor, _TessellationBias, (multipliers[1] + multipliers[2]) \/ 2);\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">scale<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">multiplier<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">max<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">factor<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bias<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">multiplier<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ PCF()<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">unroll<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">for<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">int<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #81A1C1\">++<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">multipliers<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">color<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">g<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ Calculate tessellation factors<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">EdgeTessellationFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">_TessellationFactor<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationBias<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">multipliers<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">multipliers<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]) <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-123-1024x581.png\" alt=\"\" class=\"wp-image-781 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"581\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-123-1024x581.png\" alt=\"\" class=\"wp-image-781 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-123-1024x581.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-123-300x170.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-123-768x435.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-123.png 1210w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">3.5.2 SDF\u63a7\u5236\u66f2\u9762\u7ec6\u5206\u56e0\u5b50<\/h3>\n\n\n\n<p>\u7ed3\u5408\u6709\u7b26\u53f7\u8ddd\u79bb\u573a\uff08Signed Distance Field, SDF\uff09\u6765\u63a7\u5236\u66f2\u9762\u7ec6\u5206\uff08Tessellation\uff09\u56e0\u5b50\uff0c\u76f8\u5f53\u7684\u9177\u70ab\u3002\u5f53\u7136\u672c\u8282\u4e0d\u6d89\u53caSDF\u7684\u751f\u6210\uff0c\u5047\u8bbe\u80fd\u591f\u76f4\u63a5\u901a\u8fc7\u73b0\u6210\u7684\u51fd\u6570 CalculateSDFDistance \u83b7\u53d6\u3002<\/p>\n\n\n\n<p>\u5bf9\u4e8e\u7ed9\u5b9a\u7684Mesh\uff0c\u7528 CalculateSDFDistance \u8ba1\u7b97\u51fa\u6bcf\u4e2aPatch\u4e2d\u5404\u4e2a\u9876\u70b9\u5230SDF\u8868\u793a\u7684\u5f62\u72b6\uff08\u4f8b\u5982\u7403\u4f53\uff09\u7684\u8ddd\u79bb\u3002\u5f97\u5230\u8ddd\u79bb\u540e\u518d\u8bc4\u4f30\u8be5Patch\u7684\u7ec6\u5206\u9700\u6c42\uff0c\u8fdb\u884c\u7ec6\u5206\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"TessellationFactors PatchConstantFunction(\n    InputPatch<TessellationControlPoint, 3&gt; patch) {\n    float multipliers[3];\n\n    \/\/ \u5faa\u73af\u5904\u7406\u6bcf\u4e2a\u9876\u70b9\n    [unroll] for (int i = 0; i < 3; i++) {\n        \/\/ \u8ba1\u7b97\u6bcf\u4e2a\u9876\u70b9\u5230SDF\u8868\u9762\u7684\u8ddd\u79bb\n        float sdfDistance = CalculateSDFDistance(patch[i].positionWS);\n\n        \/\/ \u6839\u636eSDF\u8ddd\u79bb\u8c03\u6574\u7ec6\u5206\u56e0\u5b50\n        if (sdfDistance < _TessellationDistanceThreshold) {\n            multipliers[i] = lerp(_MinTessellationFactor, _MaxTessellationFactor, (1 - sdfDistance \/ _TessellationDistanceThreshold));\n        } else {\n            multipliers[i] = _MinTessellationFactor;\n        }\n    }\n\n    \/\/ \u8ba1\u7b97\u6700\u7ec8\u7684\u7ec6\u5206\u56e0\u5b50\n    TessellationFactors f;\n    f.Edge[0] = max(multipliers[0], multipliers[1]);\n    f.Edge[1] = max(multipliers[1], multipliers[2]);\n    f.Edge[2] = max(multipliers[2], multipliers[0]);\n    f.Inside = (multipliers[0] + multipliers[1] + multipliers[2]) \/ 3;\n\n    return f;\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PatchConstantFunction<\/span><span style=\"color: #D8DEE9FF\">(<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">InputPatch<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">multipliers<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ \u5faa\u73af\u5904\u7406\u6bcf\u4e2a\u9876\u70b9<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    [<\/span><span style=\"color: #D8DEE9\">unroll<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">for<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">int<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #81A1C1\">++<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">        <\/span><span style=\"color: #616E88\">\/\/ \u8ba1\u7b97\u6bcf\u4e2a\u9876\u70b9\u5230SDF\u8868\u9762\u7684\u8ddd\u79bb<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">sdfDistance<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateSDFDistance<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">        <\/span><span style=\"color: #616E88\">\/\/ \u6839\u636eSDF\u8ddd\u79bb\u8c03\u6574\u7ec6\u5206\u56e0\u5b50<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #81A1C1\">if<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">sdfDistance<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationDistanceThreshold<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">            <\/span><span style=\"color: #D8DEE9\">multipliers<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">lerp<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">_MinTessellationFactor<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_MaxTessellationFactor<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">sdfDistance<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationDistanceThreshold<\/span><span style=\"color: #D8DEE9FF\">))<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">else<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">            <\/span><span style=\"color: #D8DEE9\">multipliers<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_MinTessellationFactor<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ \u8ba1\u7b97\u6700\u7ec8\u7684\u7ec6\u5206\u56e0\u5b50<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">Edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">max<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">multipliers<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">multipliers<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">])<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">Edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">max<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">multipliers<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">multipliers<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">])<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">Edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">max<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">multipliers<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">multipliers<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">])<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">Inside<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">multipliers<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">multipliers<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">multipliers<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]) <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u5177\u4f53\u5b9e\u73b0\u6211\u4e5f\u4e0d\u4f1a\uff0c\u5148\u5e84\u61c2\u4e00\u4e0b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-126-1024x567.png\" alt=\"\" class=\"wp-image-784 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"567\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-126-1024x567.png\" alt=\"\" class=\"wp-image-784 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-126-1024x567.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-126-300x166.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-126-768x425.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-126.png 1166w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u9876\u70b9\u504f\u79fb &#8211; \u8f6e\u5ed3\u5e73\u6ed1<\/h2>\n\n\n\n<p>\u4e3a\u4e00\u4e2aMesh\u6dfb\u52a0\u7ec6\u8282\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u4e0a\u5404\u79cd\u9ad8\u5206\u8fa8\u7387\u8d34\u56fe\u3002\u4f46\u662f\u5e95\u5927\u4e00\u7ea7\u538b\u6b7b\u4eba\uff0c\u8bf4\u7684\u5c31\u662f\u589e\u52a0Mesh\u9876\u70b9\u7684\u6548\u679c\u6bd4\u589e\u52a0\u8d34\u56fe\u5206\u8fa8\u7387\u7684\u6548\u679c\u8981\u597d\u3002\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u6cd5\u7ebf\u8d34\u56fe\u867d\u7136\u53ef\u4ee5\u6539\u53d8\u6bcf\u4e00\u4e2a\u7247\u5143\u7684\u6cd5\u7ebf\u65b9\u5411\uff0c\u4f46\u662f\u5e76\u4e0d\u4f1a\u6539\u53d8\u51e0\u4f55\u5916\u89c2\u3002\u5c31\u7b97\u662f128K\u7684\u7eb9\u7406\u4e5f\u65e0\u6cd5\u6d88\u9664\u952f\u9f7f\u548cpointy\u7684\u8fb9\u7f18\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-127-1024x560.png\" alt=\"\" class=\"wp-image-785 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"560\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-127-1024x560.png\" alt=\"\" class=\"wp-image-785 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-127-1024x560.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-127-300x164.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-127-768x420.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-127.png 1072w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u56e0\u6b64\u9700\u8981\u4e0a\u66f2\u9762\u7ec6\u5206\uff0c\u7136\u540e\u504f\u79fb\u9876\u70b9\u3002\u521a\u521a\u63d0\u5230\u7684\u6240\u6709\u66f2\u9762\u7ec6\u5206\u64cd\u4f5c\u90fd\u662f\u5728Patch\u6240\u5728\u7684\u5e73\u9762\u4e0a\u64cd\u4f5c\u7684\u3002\u5982\u679c\u6211\u4eec\u60f3\u8981\u5f2f\u66f2\u8fd9\u4e9b\u9876\u70b9\uff0c\u4e00\u4e2a\u6700\u7b80\u5355\u7684\u64cd\u4f5c\u5c31\u662fPhong\u7ec6\u5206\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.1 Phong\u7ec6\u5206<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u9996\u5148\u9644\u4e0a\u539f\u8bba\u6587\u3002https:\/\/perso.telecom-paristech.fr\/boubek\/papers\/PhongTessellation\/PhongTessellation.pdf<\/p>\n<\/blockquote>\n\n\n\n<p>Phong\u7740\u8272\u5e94\u8be5\u5f88\u719f\u6089\uff0c\u662f\u4e00\u79cd\u5229\u7528\u6cd5\u5411\u91cf\u7ebf\u6027\u5dee\u503c\u5f97\u5230\u5e73\u6ed1\u7684\u7740\u8272\u7684\u6280\u672f\u3002Phong\u7ec6\u5206\u7684\u7075\u611f\u6765\u81eaPhong\u7740\u8272\uff0c\u5c06Phong\u7740\u8272\u8fd9\u4e00\u6982\u5ff5\u6269\u5c55\u5230\u7a7a\u95f4\u57df\u3002<\/p>\n\n\n\n<p>Phong\u7ec6\u5206\u7684\u6838\u5fc3\u601d\u60f3\u662f\u5229\u7528\u4e09\u89d2\u5f62\u6bcf\u4e2a\u89d2\u7684\u9876\u70b9\u6cd5\u7ebf\u6765\u5f71\u54cd\u7ec6\u5206\u8fc7\u7a0b\u4e2d\u65b0\u9876\u70b9\u7684\u4f4d\u7f6e\uff0c\u4ece\u800c\u521b\u9020\u51fa\u66f2\u9762\u800c\u975e\u5e73\u9762\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u503c\u5f97\u6ce8\u610f\u4e00\u4e0b\uff0c\u8fd9\u91cc\u5f88\u591a\u6559\u7a0b\u4f1a\u7528triangle corner\uff08\u4e09\u89d2\u5f62\u7684\u89d2\uff09\u6765\u8868\u793a\u9876\u70b9\uff0c\u6211\u89c9\u5f97\u90fd\u5dee\u4e0d\u591a\uff0c\u672c\u6587\u8fd8\u662f\u7528\u56de\u9876\u70b9\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u9996\u5148\uff0c\u5728Domain\u51fd\u6570\u5185unity\u4f1a\u7ed9\u6211\u4eec\u5f53\u524d\u9700\u8981\u5904\u7406\u7684\u65b0\u9876\u70b9\u7684\u91cd\u5fc3\u5750\u6807\u3002\u5047\u8bbe\u6211\u4eec\u73b0\u5728\u5904\u7406\u7684\u662f (13,13,13) \u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-124-1024x543.png\" alt=\"\" class=\"wp-image-782 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"543\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-124-1024x543.png\" alt=\"\" class=\"wp-image-782 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-124-1024x543.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-124-300x159.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-124-768x407.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-124.png 1120w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>Patch\u7684\u6bcf\u4e00\u4e2a\u9876\u70b9\u90fd\u6709\u6cd5\u7ebf\u3002\u60f3\u8c61\u4ece\u6bcf\u4e00\u4e2a\u9876\u70b9\u53d1\u51fa\u4e00\u4e2a\u5207\u5e73\u9762\uff0c\u5782\u76f4\u4e8e\u5404\u81ea\u7684\u6cd5\u5411\u91cf\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-125-1024x582.png\" alt=\"\" class=\"wp-image-783 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"582\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-125-1024x582.png\" alt=\"\" class=\"wp-image-783 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-125-1024x582.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-125-300x170.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-125-768x436.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-125.png 1172w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-128-1024x550.png\" alt=\"\" class=\"wp-image-786 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"550\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-128-1024x550.png\" alt=\"\" class=\"wp-image-786 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-128-1024x550.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-128-300x161.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-128-768x412.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-128.png 1166w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u7136\u540e\u5c06\u5f53\u524d\u7684\u9876\u70b9\u5206\u522b\u6295\u5f71\u5230\u8fd9\u4e09\u4e2a\u5207\u5e73\u9762\u4e0a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-129-1024x622.png\" alt=\"\" class=\"wp-image-787 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"622\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-129-1024x622.png\" alt=\"\" class=\"wp-image-787 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-129-1024x622.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-129-300x182.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-129-768x466.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-129.png 1044w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u7528\u6570\u5b66\u8bed\u8a00\u63cf\u8ff0\u3002 P\u2032=P\u2212((P\u2212V)\u22c5N)N<\/p>\n\n\n\n<p>\u5176\u4e2d :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>$P$ \u662f\u6700\u521d\u63d2\u503c\u7684\u5e73\u9762\u4f4d\u7f6e\u3002<\/li>\n\n\n\n<li>$V$ \u662f\u5e73\u9762\u4e0a\u7684\u4e00\u4e2a\u9876\u70b9\u4f4d\u7f6e\u3002<\/li>\n\n\n\n<li>$N$ \u662f\u9876\u70b9 $V$ \u5904\u7684\u6cd5\u7ebf\u3002<\/li>\n\n\n\n<li>\u22c5 \u8868\u793a\u70b9\u79ef\u3002<\/li>\n\n\n\n<li>P\u2032 \u662f $P$ \u5728\u5e73\u9762\u4e0a\u7684\u6295\u5f71\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5f97\u5230\u4e09\u4e2a $P&#8217;$ \u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-130-1024x564.png\" alt=\"\" class=\"wp-image-788 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"564\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-130-1024x564.png\" alt=\"\" class=\"wp-image-788 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-130-1024x564.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-130-300x165.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-130-768x423.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-130.png 1260w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-131-1024x600.png\" alt=\"\" class=\"wp-image-789 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"600\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-131-1024x600.png\" alt=\"\" class=\"wp-image-789 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-131-1024x600.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-131-300x176.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-131-768x450.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-131.png 1222w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u6295\u5f71\u5728\u4e09\u4e2a\u5207\u5e73\u9762\u7684\u4e09\u4e2a\u70b9\u91cd\u65b0\u7ec4\u6210\u4e00\u4e2a\u65b0\u7684\u4e09\u89d2\u5f62\uff0c\u518d\u7528\u56de\u5f53\u524d\u9876\u70b9\u7684\u91cd\u5fc3\u5750\u6807\u5e94\u7528\u5230\u65b0\u7684\u4e09\u89d2\u5f62\u4e0a\uff0c\u8ba1\u7b97\u51fa\u65b0\u7684\u70b9\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-132-1024x584.png\" alt=\"\" class=\"wp-image-790 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"584\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-132-1024x584.png\" alt=\"\" class=\"wp-image-790 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-132-1024x584.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-132-300x171.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-132-768x438.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-132.png 1224w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ Calculate Phong projection offset\nfloat3 PhongProjectedPosition(float3 flatPositionWS, float3 cornerPositionWS, float3 normalWS) {\n    return flatPositionWS - dot(flatPositionWS - cornerPositionWS, normalWS) * normalWS;\n}\n\n\/\/ Apply Phong smoothing\nfloat3 CalculatePhongPosition(float3 bary, float3 p0PositionWS, float3 p0NormalWS,\n    float3 p1PositionWS, float3 p1NormalWS, float3 p2PositionWS, float3 p2NormalWS) {\n    float3 smoothedPositionWS =\n        bary.x * PhongProjectedPosition(flatPositionWS, p0PositionWS, p0NormalWS) +\n        bary.y * PhongProjectedPosition(flatPositionWS, p1PositionWS, p1NormalWS) +\n        bary.z * PhongProjectedPosition(flatPositionWS, p2PositionWS, p2NormalWS);\n    return smoothedPositionWS;\n}\n\n\/\/ The domain function runs once per vertex in the final, tessellated mesh\n\/\/ Use it to reposition vertices and prepare for the fragment stage\n[domain(&quot;tri&quot;)] \/\/ Signal we're inputting triangles\nInterpolators Domain(\n    TessellationFactors factors, \/\/ The output of the patch constant function\n    OutputPatch<TessellationControlPoint, 3&gt; patch, \/\/ The Input triangle\n    float3 barycentricCoordinates : SV_DomainLocation) { \/\/ The barycentric coordinates of the vertex on the triangle\n\n    Interpolators output;\n    ...\n    float3 positionWS = CalculatePhongPosition(barycentricCoordinates, \n      patch[0].positionWS, patch[0].normalWS, \n      patch[1].positionWS, patch[1].normalWS, \n      patch[2].positionWS, patch[2].normalWS);\n    float3 normalWS = BARYCENTRIC_INTERPOLATE(normalWS);\n    float3 tangentWS = BARYCENTRIC_INTERPOLATE(tangentWS.xyz);\n    ...\n    output.positionCS = TransformWorldToHClip(positionWS);\n    output.normalWS = normalWS;\n    output.positionWS = positionWS;\n    output.tangentWS = float4(tangentWS, patch[0].tangentWS.w);\n    ...\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ Calculate Phong projection offset<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PhongProjectedPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">cornerPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">dot<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">cornerPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ Apply Phong smoothing<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculatePhongPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothedPositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PhongProjectedPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PhongProjectedPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PhongProjectedPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothedPositionWS<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ The domain function runs once per vertex in the final, tessellated mesh<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ Use it to reposition vertices and prepare for the fragment stage<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #88C0D0\">domain<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">tri<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">)] <\/span><span style=\"color: #616E88\">\/\/ Signal we&#39;re inputting triangles<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">Interpolators<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">Domain<\/span><span style=\"color: #D8DEE9FF\">(<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">factors<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ The output of the patch constant function<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">OutputPatch<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ The Input triangle<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">barycentricCoordinates<\/span><span style=\"color: #D8DEE9FF\"> : <\/span><span style=\"color: #D8DEE9\">SV_DomainLocation<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ The barycentric coordinates of the vertex on the triangle<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">Interpolators<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculatePhongPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">barycentricCoordinates<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BARYCENTRIC_INTERPOLATE<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BARYCENTRIC_INTERPOLATE<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionCS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">TransformWorldToHClip<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">float4<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u6ce8\u610f\u8fd9\u91cc\u9700\u8981\u6dfb\u52a0\u6cd5\u7ebf\u5411\u91cf\uff0c\u7136\u540e\u5199\u8fdbVertex\u548cDomain\u3002\u518d\u5199\u4e00\u4e2a\u8ba1\u7b97\u7b97 $P&#8217;$ \u91cd\u5fc3\u5750\u6807\u7684\u51fd\u6570\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"struct Attributes {\n    ...\n    float4 tangentOS : TANGENT;\n};\nstruct TessellationControlPoint {\n    ...\n    float4 tangentWS : TANGENT;\n};\nstruct Interpolators {\n    ...\n    float4 tangentWS : TANGENT;\n};\nTessellationControlPoint Vertex(Attributes input) {\n    TessellationControlPoint output;\n    ...\n    \/\/ .....\u6700\u540e\u4e00\u4e2a\u662f\u7b26\u53f7\u7cfb\u6570\n    output.tangentWS = float4(normalInputs.tangentWS, input.tangentOS.w); \/\/ tangent.w containts bitangent multiplier\n}\n\/\/ Barycentric interpolation as a function\nfloat3 BarycentricInterpolate(float3 bary, float3 a, float3 b, float3 c) {\n    return bary.x * a + bary.y * b + bary.z * c;\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">struct<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Attributes<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> tangentOS <\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">TANGENT<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">struct<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> tangentWS <\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">TANGENT<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">struct<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Interpolators<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float4<\/span><span style=\"color: #D8DEE9FF\"> tangentWS <\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">TANGENT<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">Vertex<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">Attributes<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">input<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ .....\u6700\u540e\u4e00\u4e2a\u662f\u7b26\u53f7\u7cfb\u6570<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">float4<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">normalInputs<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">input<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">tangentOS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ tangent.w containts bitangent multiplier<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ Barycentric interpolation as a function<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BarycentricInterpolate<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">a<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">b<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">c<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">a<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">b<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">c<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-133.png\" alt=\"\" class=\"wp-image-791 lazyload\"\/><noscript><img decoding=\"async\" width=\"1018\" height=\"794\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-133.png\" alt=\"\" class=\"wp-image-791 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-133.png 1018w, https:\/\/remoooo.com\/wp-content\/uploads\/image-133-300x234.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-133-768x599.png 768w\" sizes=\"(max-width: 1018px) 100vw, 1018px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u5728Phong\u7ec6\u5206\u539f\u8bba\u6587\u4e2d\uff0c\u8fd8\u52a0\u5165\u4e86\u4e00\u4e2a \u03b1 \u56e0\u5b50\uff0c\u7528\u4e8e\u63a7\u5236\u5f2f\u66f2\u7684\u7a0b\u5ea6\u3002\u539f\u6587\u4f5c\u8005\u63a8\u8350\u5c06\u8fd9\u4e2a\u6570\u503c\u5168\u5c40\u5730\u8bbe\u7f6e\u4e3a\u56db\u5206\u4e4b\u4e09\uff0c\u8fd9\u6837\u7684\u89c6\u89c9\u6548\u679c\u6700\u597d\u3002\u5c06\u542b\u6709 \u03b1 \u56e0\u5b50\u7684\u7b97\u6cd5\u5c55\u5f00\u540e\u53ef\u4ee5\u5f97\u5230\u4e8c\u6b21\u8d1d\u585e\u5c14\u66f2\u7ebf\uff0c\u867d\u7136\u4e0d\u80fd\u63d0\u4f9b\u62d0\u70b9\u4f46\u662f\u5b9e\u9645\u5f00\u53d1\u4e2d\u5df2\u7ecf\u8db3\u591f\u4f7f\u7528\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-135-1024x334.png\" alt=\"\" class=\"wp-image-793 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"334\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-135-1024x334.png\" alt=\"\" class=\"wp-image-793 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-135-1024x334.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-135-300x98.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-135-768x251.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-135.png 1090w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u9996\u5148\u770b\u770b\u539f\u8bba\u6587\u7684\u516c\u5f0f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-141-1024x639.png\" alt=\"\" class=\"wp-image-799 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"639\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-141-1024x639.png\" alt=\"\" class=\"wp-image-799 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-141-1024x639.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-141-300x187.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-141-768x479.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-141.png 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u672c\u8d28\u4e0a\u5c31\u662f\u63a7\u5236\u63d2\u503c\u7684\u7a0b\u5ea6\uff0c\u5b9a\u91cf\u5206\u6790\u4e00\u4e0b\u5c31\u77e5\u9053\uff0c\u5f53 \u03b1=0 \u7684\u65f6\u5019\uff0c\u6240\u6709\u9876\u70b9\u90fd\u5728\u539f\u6765\u7684\u5e73\u9762\u4e0a\uff0c\u4e5f\u5c31\u76f8\u5f53\u4e8e\u6ca1\u6709\u4efb\u4f55\u4f4d\u79fb\u3002\u5f53 \u03b1=1 \u7684\u65f6\u5019\uff0c\u65b0\u7684\u9876\u70b9\u5b8c\u5168\u4f9d\u8d56\u4e8ePhong\u7ec6\u5206\u5f2f\u66f2\u9876\u70b9\u3002\u5f53\u7136\uff0c\u4f60\u4e5f\u53ef\u4ee5\u5c1d\u8bd5\u5c0f\u4e8e\u96f6\u6216\u8005\u5927\u4e8e\u4e00\u7684\u6570\u503c\uff0c\u6548\u679c\u4e5f\u662f\u6bd4\u8f83\u6709\u8da3\u7684\u3002~~<em>\u770b\u4e0d\u61c2\u539f\u6587\u7684\u6570\u5b66\u516c\u5f0f\u6ca1\u5173\u7cfb\uff0c\u6211\u53cd\u624b\u76f4\u63a5\u4e0a\u4e00\u4e2alerp\uff0c\u4e3b\u6253\u4e00\u4e2a\u80e1\u4e71\u63d2\u503c\u3002<\/em>~~<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ Apply Phong smoothing\nfloat3 CalculatePhongPosition(float3 bary, float smoothing, float3 p0PositionWS, float3 p0NormalWS,\n    float3 p1PositionWS, float3 p1NormalWS, float3 p2PositionWS, float3 p2NormalWS) {\n    float3 flatPositionWS = BarycentricInterpolate(bary, p0PositionWS, p1PositionWS, p2PositionWS);\n    float3 smoothedPositionWS =\n        bary.x * PhongProjectedPosition(flatPositionWS, p0PositionWS, p0NormalWS) +\n        bary.y * PhongProjectedPosition(flatPositionWS, p1PositionWS, p1NormalWS) +\n        bary.z * PhongProjectedPosition(flatPositionWS, p2PositionWS, p2NormalWS);\n    return lerp(flatPositionWS, smoothedPositionWS, smoothing);\n}\n\n\/\/ Apply Phong smoothing\nfloat3 CalculatePhongPosition(float3 bary, float smoothing, float3 p0PositionWS, float3 p0NormalWS,\n    float3 p1PositionWS, float3 p1NormalWS, float3 p2PositionWS, float3 p2NormalWS) {\n    float3 flatPositionWS = BarycentricInterpolate(bary, p0PositionWS, p1PositionWS, p2PositionWS);\n    float3 smoothedPositionWS =\n        bary.x * PhongProjectedPosition(flatPositionWS, p0PositionWS, p0NormalWS) +\n        bary.y * PhongProjectedPosition(flatPositionWS, p1PositionWS, p1NormalWS) +\n        bary.z * PhongProjectedPosition(flatPositionWS, p2PositionWS, p2NormalWS);\n    return lerp(flatPositionWS, smoothedPositionWS, smoothing);\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ Apply Phong smoothing<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculatePhongPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BarycentricInterpolate<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothedPositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PhongProjectedPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PhongProjectedPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PhongProjectedPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">lerp<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothedPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ Apply Phong smoothing<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculatePhongPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BarycentricInterpolate<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothedPositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PhongProjectedPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PhongProjectedPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PhongProjectedPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">lerp<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothedPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u522b\u5fd8\u4e86\u66b4\u9732\u5728\u6750\u8d28\u9762\u677f\u4e2d\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ .shader\n_TessellationSmoothing(&quot;_TessellationSmoothing&quot;, Range(0,1)) = 0.5\n\n\/\/ .hlsl\nfloat _TessellationSmoothing;\n\n\n\nInterpolators Domain( .... ) {\n    ...\n    float smoothing = _TessellationSmoothing;\n    float3 positionWS = CalculatePhongPosition(barycentricCoordinates, smoothing,\n      patch[0].positionWS, patch[0].normalWS, \n      patch[1].positionWS, patch[1].normalWS, \n      patch[2].positionWS, patch[2].normalWS);\n    ...\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ .shader<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">_TessellationSmoothing<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">_TessellationSmoothing<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">Range<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">)) <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.5<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ .hlsl<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationSmoothing<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">Interpolators<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">Domain<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #81A1C1\">...<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9FF\"> ) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationSmoothing<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculatePhongPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">barycentricCoordinates<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #ECEFF4\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-139-1024x624.png\" alt=\"\" class=\"wp-image-797 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"624\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-139-1024x624.png\" alt=\"\" class=\"wp-image-797 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-139-1024x624.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-139-300x183.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-139-768x468.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-139.png 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u9700\u8981\u7279\u522b\u6ce8\u610f\u7684\u662f\uff0c\u6709\u4e9b\u6a21\u578b\u9700\u8981\u4e00\u4e9b\u4fee\u9970\u3002\u5982\u679c\u6a21\u578b\u7684\u8fb9\u7f18\u975e\u5e38\u9510\u5229\uff0c\u90a3\u4e48\u5c31\u8bf4\u660e\u8fd9\u4e2a\u9876\u70b9\u7684\u6cd5\u7ebf\u548c\u6240\u5728\u9762\u7684\u6cd5\u7ebf\u51e0\u4e4e\u5e73\u884c\u3002\u5728Phong Tessellation\u4e2d\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u9876\u70b9\u5728\u5207\u5e73\u9762\u4e0a\u7684\u6295\u5f71\u975e\u5e38\u63a5\u8fd1\u4e8e\u539f\u59cb\u7684\u9876\u70b9\u4f4d\u7f6e\uff0c\u4ece\u800c\u4f7f\u5f97\u7ec6\u5206\u7684\u5f71\u54cd\u51cf\u5c11\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u53ef\u4ee5\u5728\u5efa\u6a21\u8f6f\u4ef6\u4e2d\u8fdb\u884c\u6240\u8c13\u7684\u201c\u6dfb\u52a0\u73af\u8fb9\u201d\uff08adding loop edges\uff09\u6216\u201c\u73af\u5207\u5272\u201d\uff08loop cut\uff09\uff0c\u4ee5\u6dfb\u52a0\u66f4\u591a\u7684\u51e0\u4f55\u7ec6\u8282\u3002\u5728\u539f\u6a21\u578b\u7684\u8fb9\u7f18\u9644\u8fd1\u63d2\u5165\u989d\u5916\u7684\u8fb9\u7f18\u73af\uff0c\u4ece\u800c\u589e\u52a0\u7ec6\u5206\u5bc6\u5ea6\u3002\u5177\u4f53\u64cd\u4f5c\u8fd9\u91cc\u5c31\u4e0d\u5c55\u5f00\u4e86\u3002<\/p>\n\n\n\n<p>\u603b\u7684\u6765\u8bf4\uff0cPhong\u7ec6\u5206\u7684\u6548\u679c\u548c\u6027\u80fd\u90fd\u76f8\u5bf9\u4e0d\u9519\u3002\u4f46\u662f\u5982\u679c\u5e0c\u671b\u5f97\u5230\u66f4\u9ad8\u54c1\u8d28\u7684\u5e73\u6ed1\u6548\u679c\uff0c\u53ef\u4ee5\u8003\u8651 PN triangles\u3002\u8be5\u6280\u672f\u57fa\u4e8e\u8d1d\u585e\u5c14\u66f2\u7ebf\u5f2f\u66f2\u4e09\u89d2\u5f62\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.2 PN triangles \u7ec6\u5206<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u9996\u5148\u9644\u4e0a\u539f\u8bba\u6587\u3002http:\/\/alex.vlachos.com\/graphics\/CurvedPNTriangles.pdf<\/p>\n<\/blockquote>\n\n\n\n<p>PN Triangles\u4e0d\u9700\u8981\u90bb\u8fd1\u4e09\u89d2\u5f62\u7684\u4fe1\u606f\uff0c\u5e76\u4e14\u6210\u672c\u8f83\u4f4e\u3002PN Triangles\u7b97\u6cd5\u53ea\u9700\u8981Patch\u91cc\u7684\u4e09\u4e2a\u9876\u70b9\u7684\u4f4d\u7f6e\u548c\u6cd5\u7ebf\u4fe1\u606f\u3002\u5269\u4e0b\u7684\u6570\u636e\u90fd\u53ef\u4ee5\u901a\u8fc7\u8ba1\u7b97\u5f97\u5230\u3002\u6ce8\u610f\uff0c\u6240\u6709\u6570\u636e\u90fd\u5728\u91cd\u5fc3\u5750\u6807\u3002<\/p>\n\n\n\n<p>\u5728PN\u7b97\u6cd5\u4e2d\uff0c\u9700\u8981\u5148\u8ba1\u7b97\u51fa10\u4e2a\u63a7\u5236\u70b9\u7528\u4e8e\u66f2\u9762\u7ec6\u5206\uff0c\u5982\u4e0b\u56fe\u6240\u793a\u3002\u4e09\u4e2a\u4e09\u89d2\u5f62\u7684\u9876\u70b9\uff0c\u4e00\u4e2a\u91cd\u5fc3\uff0c\u8fd8\u6709\u4e09\u5bf9\u8fb9\u4e0a\u7684\u63a7\u5236\u70b9\u7ec4\u6210\u6240\u6709\u63a7\u5236\u70b9\u3002\u8ba1\u7b97\u5f97\u5230\u7684\u8d1d\u585e\u5c14\u66f2\u7ebf\u63a7\u5236\u70b9\uff0c\u4f1a\u4f20\u7ed9Domain\u3002\u7531\u4e8e\u6bcf\u4e2a\u4e09\u89d2\u5f62Patch\u7684\u63a7\u5236\u70b9\u90fd\u662f\u4e00\u81f4\u7684\uff0c\u56e0\u6b64\u8ba1\u7b97\u63a7\u5236\u70b9\u7684\u6b65\u9aa4\u653e\u5728Patch Constant Function\u975e\u5e38\u5408\u9002\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-136-1024x606.png\" alt=\"\" class=\"wp-image-794 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"606\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-136-1024x606.png\" alt=\"\" class=\"wp-image-794 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-136-1024x606.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-136-300x177.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-136-768x454.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-136.png 1038w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u8bba\u6587\u4e2d\u7684\u8ba1\u7b97\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p>$$<br>\\begin{aligned}<br>b_{300} &amp; =P_1 \\<br>b_{030} &amp; =P_2 \\<br>b_{003} &amp; =P_3 \\<br>w_{i j} &amp; =\\left(P_j-P_i\\right) \\cdot N_i \\in \\mathbf{R} \\quad \\text { here &#8216; } \\cdot \\text { &#8216; is the scalar product, } \\<br>b_{210} &amp; =\\left(2 P_1+P_2-w_{12} N_1\\right) \/ 3 \\<br>b_{120} &amp; =\\left(2 P_2+P_1-w_{21} N_2\\right) \/ 3 \\<br>b_{021} &amp; =\\left(2 P_2+P_3-w_{23} N_2\\right) \/ 3 \\<br>b_{012} &amp; =\\left(2 P_3+P_2-w_{32} N_3\\right) \/ 3 \\<br>b_{102} &amp; =\\left(2 P_3+P_1-w_{31} N_3\\right) \/ 3, \\<br>b_{201} &amp; =\\left(2 P_1+P_3-w_{13} N_1\\right) \/ 3, \\<br>E &amp; =\\left(b_{210}+b_{120}+b_{021}+b_{012}+b_{102}+b_{201}\\right) \/ 6 \\<br>V &amp; =\\left(P_1+P_2+P_3\\right) \/ 3, \\<br>b_{111} &amp; =E+(E-V) \/ 2 .<br>\\end{aligned}<br>$$<\/p>\n\n\n\n<p>\u516c\u5f0f\u4e2d\u7684 $w_{i j}$ \u6bcf\u6761\u8fb9\u90fd\u4f1a\u8ba1\u7b97\u4e24\u6b21\uff0c\u56e0\u6b64\u4e00\u5171\u4f1a\u8ba1\u7b976\u6b21\u3002\u6bd4\u5982 $w_{1 2}$ \u7684\u610f\u4e49\u5c31\u662f\uff0c$P_1$ \u5230 $P_2$ \u7684\u5411\u91cf\u5728 $P_1$ \u6cd5\u7ebf\u65b9\u5411\u4e0a\u7684\u6295\u5f71\u957f\u5ea6\u3002\u518d\u4e58\u4e0a\u5bf9\u5e94\u7684\u6cd5\u7ebf\u65b9\u5411\u5c31\u8868\u793a $w$ \u4e3a\u957f\u5ea6\u7684\u6295\u5f71\u5411\u91cf\u3002<\/p>\n\n\n\n<p>\u8fd8\u662f\u8ba1\u7b97\u9760\u8fd1 $P_1$ \u7684\u56e0\u5b50\u4e3a\u4f8b\uff0c\u5f53\u524d\u4f4d\u7f6e\u70b9\u7684\u6743\u91cd\u5e94\u8be5\u8f83\u5927\uff0c\u4e58\u4e0a\u4e00\u4e2a $2$ \u4f7f\u5f97\u8ba1\u7b97\u51fa\u6765\u7684\u63a7\u5236\u70b9\u66f4\u52a0\u9760\u8fd1\u5f53\u524d\u7684\u9876\u70b9\u3002\u51cf\u53bb\u6295\u5f71\u5411\u91cf\u7684\u539f\u56e0\u662f\u4e3a\u4e86\u4fee\u6b63\u56e0 $P_2$ \u4f4d\u7f6e\u4e0d\u5728 $P_1$\u200b\u200b \u6cd5\u7ebf\u5b9a\u4e49\u7684\u5e73\u9762\u4e0a\u800c\u5bfc\u81f4\u7684\u8bef\u5dee\u3002\u8ba9\u4e09\u89d2\u5f62\u5e73\u9762\u66f4\u52a0\u543b\u5408\uff0c\u51cf\u5c11\u626d\u66f2\u6548\u679c\u3002\u6700\u540e\u518d\u96643\uff0c\u4e3a\u4e86\u6807\u51c6\u5316\u3002<\/p>\n\n\n\n<p>\u63a5\u7740\u8ba1\u7b97\u5e73\u5747\u8d1d\u585e\u5c14\u63a7\u5236\u70b9 $E$\u200b \uff0c\u8868\u793a\u516d\u4e2a\u63a7\u5236\u70b9\u7684\u5e73\u5747\u4f4d\u7f6e\u3002\u8fd9\u4e2a\u5e73\u5747\u4f4d\u7f6e\u4ee3\u8868\u4e86\u8fb9\u754c\u63a7\u5236\u70b9\u7684\u96c6\u4e2d\u8d8b\u52bf\u3002\u7136\u540e\u7b97\u4e00\u4e0b\u4e09\u89d2\u5f62\u9876\u70b9\u7684\u5e73\u5747\u4f4d\u7f6e\u3002\u7136\u540e\u6c42\u51fa\u8fd9\u4e24\u4e2a\u5e73\u5747\u4f4d\u7f6e\u7684\u4e2d\u70b9\u4f4d\u7f6e\uff0c\u52a0\u5230\u8d1d\u585e\u5c14\u5e73\u5747\u63a7\u5236\u70b9\u3002\u8fd9\u5c31\u662f\u6700\u7ec8\u8981\u6c42\u7684\u7b2c\u5341\u4e2a\u53c2\u6570\u4e86\u3002<\/p>\n\n\n\n<p>\u603b\u7ed3\u4e00\u4e0b\uff0c\u524d\u4e09\u4e2a\u662f\u4e09\u89d2\u5f62\u7684\u9876\u70b9\u4f4d\u7f6e\uff08\u56e0\u6b64\u4e0d\u7528\u5199\u5728\u7ed3\u6784\u4f53\u91cc\u9762\uff09\uff0c\u6709\u516d\u4e2a\u662f\u901a\u8fc7\u6743\u91cd\u8ba1\u7b97\uff0c\u6700\u540e\u4e00\u4e2a\u662f\u96c6\u5408\u524d\u9762\u8ba1\u7b97\u7684\u5e73\u5747\u8d77\u6765\u3002\u4ee3\u7801\u4e66\u5199\u975e\u5e38\u7b80\u5355\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"struct TessellationFactors {\n    float edge[3] : SV_TessFactor;\n    float inside : SV_InsideTessFactor;\n    float3 bezierPoints[7] : BEZIERPOS;\n};\n\n\/\/Bezier control point calculations\nfloat3 CalculateBezierControlPoint(float3 p0PositionWS, float3 aNormalWS, float3 p1PositionWS, float3 bNormalWS) {\n    float w = dot(p1PositionWS - p0PositionWS, aNormalWS);\n    return (p0PositionWS * 2 + p1PositionWS - w * aNormalWS) \/ 3.0;\n}\n\nvoid CalculateBezierControlPoints(inout float3 bezierPoints[7],\n    float3 p0PositionWS, float3 p0NormalWS, float3 p1PositionWS, float3 p1NormalWS, float3 p2PositionWS, float3 p2NormalWS) {\n    bezierPoints[0] = CalculateBezierControlPoint(p0PositionWS, p0NormalWS, p1PositionWS, p1NormalWS);\n    bezierPoints[1] = CalculateBezierControlPoint(p1PositionWS, p1NormalWS, p0PositionWS, p0NormalWS);\n    bezierPoints[2] = CalculateBezierControlPoint(p1PositionWS, p1NormalWS, p2PositionWS, p2NormalWS);\n    bezierPoints[3] = CalculateBezierControlPoint(p2PositionWS, p2NormalWS, p1PositionWS, p1NormalWS);\n    bezierPoints[4] = CalculateBezierControlPoint(p2PositionWS, p2NormalWS, p0PositionWS, p0NormalWS);\n    bezierPoints[5] = CalculateBezierControlPoint(p0PositionWS, p0NormalWS, p2PositionWS, p2NormalWS);\n    float3 avgBezier = 0;\n    [unroll] for (int i = 0; i < 6; i++) {\n        avgBezier += bezierPoints[i];\n    }\n    avgBezier \/= 6.0;\n    float3 avgControl = (p0PositionWS + p1PositionWS + p2PositionWS) \/ 3.0;\n    bezierPoints[6] = avgBezier + (avgBezier - avgControl) \/ 2.0;\n}\n\n\/\/ The patch constant function runs once per triangle, or &quot;patch&quot;\n\/\/ It runs in parallel to the hull function\nTessellationFactors PatchConstantFunction(\n    InputPatch<TessellationControlPoint, 3&gt; patch) {\n    ...\n    TessellationFactors f = (TessellationFactors)0;\n    \/\/ Check if this patch should be culled (it is out of view)\n    if (ShouldClipPatch(...)) {\n        ...\n    } else {\n        ...\n        CalculateBezierControlPoints(f.bezierPoints, patch[0].positionWS, patch[0].normalWS, \n          patch[1].positionWS, patch[1].normalWS, patch[2].positionWS, patch[2].normalWS);\n    }\n    return f;\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">struct<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #D8DEE9FF\">] : <\/span><span style=\"color: #D8DEE9\">SV_TessFactor<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> inside <\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">SV_InsideTessFactor<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">7<\/span><span style=\"color: #D8DEE9FF\">] : <\/span><span style=\"color: #D8DEE9\">BEZIERPOS<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/Bezier control point calculations<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierControlPoint<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">aNormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bNormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">dot<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">aNormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">w<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">aNormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3.0<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">void<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierControlPoints<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">inout<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">7<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierControlPoint<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierControlPoint<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierControlPoint<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierControlPoint<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">4<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierControlPoint<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">5<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierControlPoint<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">avgBezier<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    [<\/span><span style=\"color: #D8DEE9\">unroll<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">for<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">int<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">6<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #81A1C1\">++<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">avgBezier<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">avgBezier<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">6.0<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">avgControl<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3.0<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">6<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">avgBezier<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">avgBezier<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">avgControl<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">2.0<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ The patch constant function runs once per triangle, or &quot;patch&quot;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ It runs in parallel to the hull function<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PatchConstantFunction<\/span><span style=\"color: #D8DEE9FF\">(<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">InputPatch<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ Check if this patch should be culled (it is out of view)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">if<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #88C0D0\">ShouldClipPatch<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">...<\/span><span style=\"color: #D8DEE9FF\">)) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">else<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #88C0D0\">CalculateBezierControlPoints<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">          <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u63a5\u7740\u5728domain\u51fd\u6570\u4e2d\uff0c\u4f7f\u7528Hull Function\u8f93\u51fa\u7684\u5341\u4e2a\u56e0\u5b50\u3002\u6839\u636e\u8bba\u6587\u7ed9\u51fa\u7684\u516c\u5f0f\uff0c\u8ba1\u7b97\u51fa\u6700\u7ec8\u7684\u7acb\u65b9\u8d1d\u585e\u5c14\u66f2\u9762\u5750\u6807\u3002\u7136\u540e\u518d\u63d2\u503c\u4e00\u4e0b\uff0c\u66b4\u9732\u5230\u6750\u8d28\u9762\u677f\u4e0a\u3002<\/p>\n\n\n\n<p>$$<br>\\begin{aligned}<br>&amp; b: \\quad R^2 \\mapsto R^3, \\quad \\text { for } w=1-u-v, \\quad u, v, w \\geq 0 \\<br>&amp; b(u, v)= \\sum_{i+j+k=3} b_{i j k} \\frac{3!}{i!j!k!} u^i v^j w^k \\<br>&amp;= b_{300} w^3+b_{030} u^3+b_{003} v^3 \\<br>&amp;+b_{210} 3 w^2 u+b_{120} 3 w u^2+b_{201} 3 w^2 v \\<br>&amp;+b_{021} 3 u^2 v+b_{102} 3 w v^2+b_{012} 3 u v^2 \\<br>&amp;+b_{111} 6 w u v .<br>\\end{aligned}<br>$$<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"\/\/ Barycentric interpolation as a function\nfloat3 BarycentricInterpolate(float3 bary, float3 a, float3 b, float3 c) {\n    return bary.x * a + bary.y * b + bary.z * c;\n}\n\nfloat3 CalculateBezierPosition(float3 bary, float smoothing, float3 bezierPoints[7],\n    float3 p0PositionWS, float3 p1PositionWS, float3 p2PositionWS) {\n    float3 flatPositionWS = BarycentricInterpolate(bary, p0PositionWS, p1PositionWS, p2PositionWS);\n    float3 smoothedPositionWS =\n        p0PositionWS * (bary.x * bary.x * bary.x) +\n        p1PositionWS * (bary.y * bary.y * bary.y) +\n        p2PositionWS * (bary.z * bary.z * bary.z) +\n        bezierPoints[0] * (3 * bary.x * bary.x * bary.y) +\n        bezierPoints[1] * (3 * bary.y * bary.y * bary.x) +\n        bezierPoints[2] * (3 * bary.y * bary.y * bary.z) +\n        bezierPoints[3] * (3 * bary.z * bary.z * bary.y) +\n        bezierPoints[4] * (3 * bary.z * bary.z * bary.x) +\n        bezierPoints[5] * (3 * bary.x * bary.x * bary.z) +\n        bezierPoints[6] * (6 * bary.x * bary.y * bary.z);\n    return lerp(flatPositionWS, smoothedPositionWS, smoothing);\n}\n\n\/\/ The domain function runs once per vertex in the final, tessellated mesh\n\/\/ Use it to reposition vertices and prepare for the fragment stage\n[domain(&quot;tri&quot;)] \/\/ Signal we're inputting triangles\nInterpolators Domain(\n    TessellationFactors factors, \/\/ The output of the patch constant function\n    OutputPatch<TessellationControlPoint, 3&gt; patch, \/\/ The Input triangle\n    float3 barycentricCoordinates : SV_DomainLocation) { \/\/ The barycentric coordinates of the vertex on the triangle\n\n    Interpolators output;\n    ...\n    \/\/ Calculate tessellation smoothing multipler\n    float smoothing = _TessellationSmoothing;\n#ifdef _TESSELLATION_SMOOTHING_VCOLORS\n    smoothing *= BARYCENTRIC_INTERPOLATE(color.r); \/\/ Multiply by the vertex's red channel\n#endif\n\n    float3 positionWS = CalculateBezierPosition(barycentricCoordinates,\n      smoothing, factors.bezierPoints, \n      patch[0].positionWS, patch[1].positionWS, patch[2].positionWS);\n    float3 normalWS = BARYCENTRIC_INTERPOLATE(normalWS);\n    float3 tangentWS = BARYCENTRIC_INTERPOLATE(tangentWS.xyz);\n    ...\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">\/\/ Barycentric interpolation as a function<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BarycentricInterpolate<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">a<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">b<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">c<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">a<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">b<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">c<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">7<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BarycentricInterpolate<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothedPositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">4<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">5<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">6<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #B48EAD\">6<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">lerp<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothedPositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ The domain function runs once per vertex in the final, tessellated mesh<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ Use it to reposition vertices and prepare for the fragment stage<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #88C0D0\">domain<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">tri<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">)] <\/span><span style=\"color: #616E88\">\/\/ Signal we&#39;re inputting triangles<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">Interpolators<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">Domain<\/span><span style=\"color: #D8DEE9FF\">(<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">factors<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ The output of the patch constant function<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">OutputPatch<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ The Input triangle<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">barycentricCoordinates<\/span><span style=\"color: #D8DEE9FF\"> : <\/span><span style=\"color: #D8DEE9\">SV_DomainLocation<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ The barycentric coordinates of the vertex on the triangle<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">Interpolators<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ Calculate tessellation smoothing multipler<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationSmoothing<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">#<\/span><span style=\"color: #D8DEE9\">ifdef<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TESSELLATION_SMOOTHING_VCOLORS<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BARYCENTRIC_INTERPOLATE<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">color<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">r<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ Multiply by the vertex&#39;s red channel<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">#<\/span><span style=\"color: #D8DEE9\">endif<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">barycentricCoordinates<\/span><span style=\"color: #ECEFF4\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">factors<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">      <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BARYCENTRIC_INTERPOLATE<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BARYCENTRIC_INTERPOLATE<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-134.png\" alt=\"\" class=\"wp-image-792 lazyload\"\/><noscript><img decoding=\"async\" width=\"912\" height=\"510\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-134.png\" alt=\"\" class=\"wp-image-792 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-134.png 912w, https:\/\/remoooo.com\/wp-content\/uploads\/image-134-300x168.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-134-768x429.png 768w\" sizes=\"(max-width: 912px) 100vw, 912px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u5bf9\u6bd4\u6548\u679c\uff0c\u5173\u95ed\u4e0e\u5f00\u542fPN triangles\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.3 \u6539\u8fdb\u7248 PN triangles &#8211; \u8f93\u51fa\u7ec6\u5206\u7684\u6cd5\u7ebf<\/h3>\n\n\n\n<p>\u4f20\u7edf\u7684PN triangles\u53ea\u6539\u53d8\u4e86\u9876\u70b9\u7684\u4f4d\u7f6e\u4fe1\u606f\uff0c\u6211\u4eec\u53ef\u4ee5\u518d\u7ed3\u5408\u9876\u70b9\u7684\u6cd5\u7ebf\u4fe1\u606f\uff0c\u8f93\u51fa\u52a8\u6001\u53d8\u5316\u7684\u6cd5\u7ebf\u4fe1\u606f\uff0c\u63d0\u4f9b\u66f4\u597d\u7684\u5149\u7ebf\u53cd\u5c04\u6548\u679c\u3002<\/p>\n\n\n\n<p>\u5728\u539f\u672c\u7684\u7684\u7b97\u6cd5\u4e2d\uff0c\u6cd5\u7ebf\u7684\u53d8\u5316\u662f\u975e\u5e38\u79bb\u6563\u7684\u3002\u5982\u4e0b\u56fe\uff08\u4e0a\uff09\u6240\u793a\uff0c\u5229\u7528\u539f\u672c\u4e09\u89d2\u5f62\u7684\u4e24\u4e2a\u9876\u70b9\u63d0\u4f9b\u7684\u6cd5\u7ebf\u4e5f\u8bb8\u4e0d\u80fd\u5f88\u597d\u7684\u8868\u73b0\u539f\u672c\u66f2\u9762\u7684\u6cd5\u7ebf\u53d8\u5316\u3002\u6211\u4eec\u60f3\u8981\u8fbe\u5230\u4e0b\u56fe\uff08\u4e0b\uff09\u7684\u6548\u679c\uff0c\u56e0\u6b64\u9700\u8981\u5229\u7528\u4e8c\u6b21\u63d2\u503c\u5f97\u5230\u5355\u4e2aPatch\u4e2d\u53ef\u80fd\u7684\u66f2\u9762\u53d8\u5316\u3002<\/p>\n\n\n\n<p>\u7531\u4e8e\u66f2\u9762\u662f\u4e09\u6b21\u8d1d\u585e\u5c14\u9762\uff0c\u6240\u4ee5\u6cd5\u7ebf\u5e94\u8be5\u662f\u4e8c\u6b21\u8d1d\u585e\u5c14\u66f2\u9762\u63d2\u503c\u3002\u56e0\u6b64\u9700\u8981\u989d\u5916\u7684\u4e09\u4e2a\u6cd5\u7ebf\u63a7\u5236\u70b9\u3002<a target=\"_blank\" href=\"https:\/\/www.zhihu.com\/people\/dong-yao-xin-70\" rel=\"noreferrer noopener\">TheTus<\/a>\u7684\u6587\u7ae0\u5df2\u7ecf\u8bb2\u5f97\u6bd4\u8f83\u6e05\u6670\u4e86\uff0c\u8be6\u7ec6\u7684\u6570\u5b66\u539f\u7406\u8bf7\u79fb\u6b65<a target=\"_blank\" href=\"https:\/\/zhuanlan.zhihu.com\/p\/629202115\" rel=\"noreferrer noopener\">Ref10.\u94fe\u63a5<\/a>\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-137-1024x779.png\" alt=\"\" class=\"wp-image-795 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"779\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-137-1024x779.png\" alt=\"\" class=\"wp-image-795 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-137-1024x779.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-137-300x228.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-137-768x585.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-137.png 1072w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u4e0b\u9762\u7b80\u5355\u4ecb\u7ecd\u4e00\u4e0b\u5982\u4f55\u83b7\u53d6\u7ec6\u5206\u7684\u6cd5\u7ebf\u65b9\u5411\u3002<\/p>\n\n\n\n<p>\u9996\u5148\u83b7\u53d6\u70b9AB\u7684\u4e24\u4e2a\u6cd5\u7ebf\u4fe1\u606f\u3002\u7136\u540e\u6c42\u51fa\u4ed6\u4eec\u7684\u5e73\u5747\u6cd5\u5411\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-138-1024x392.png\" alt=\"\" class=\"wp-image-796 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"392\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-138-1024x392.png\" alt=\"\" class=\"wp-image-796 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-138-1024x392.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-138-300x115.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-138-768x294.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-138.png 1284w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u6784\u9020\u4e00\u4e2a\u5782\u76f4\u4e8e\u7ebf\u6bb5AB\u8fc7\u4e2d\u70b9\u7684\u5e73\u9762\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-143-1024x354.png\" alt=\"\" class=\"wp-image-801 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"354\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-143-1024x354.png\" alt=\"\" class=\"wp-image-801 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-143-1024x354.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-143-300x104.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-143-768x266.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-143.png 1162w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u53d6\u521a\u521a\u5e73\u5747\u6cd5\u5411\u5bf9\u4e8e\u8be5\u5e73\u9762\u7684\u53cd\u5c04\u5411\u91cf\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-140-1024x316.png\" alt=\"\" class=\"wp-image-798 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"316\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-140-1024x316.png\" alt=\"\" class=\"wp-image-798 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-140-1024x316.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-140-300x93.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-140-768x237.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-140.png 1224w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u6bcf\u6761\u8fb9\u90fd\u7b97\u4e00\u4e0b\uff0c\u7b97\u4e09\u4e2a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-142-1024x432.png\" alt=\"\" class=\"wp-image-800 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"432\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-142-1024x432.png\" alt=\"\" class=\"wp-image-800 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-142-1024x432.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-142-300x127.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-142-768x324.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-142.png 1162w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"struct TessellationFactors {\n    float edge[3] : SV_TessFactor;\n    float inside : SV_InsideTessFactor;\n    float3 bezierPoints[10] : BEZIERPOS;\n};\n\nfloat3 CalculateBezierControlNormal(float3 p0PositionWS, float3 aNormalWS, float3 p1PositionWS, float3 bNormalWS) {\n    float3 d = p1PositionWS - p0PositionWS;\n    float v = 2 * dot(d, aNormalWS + bNormalWS) \/ dot(d, d);\n    return normalize(aNormalWS + bNormalWS - v * d);\n}\n\nvoid CalculateBezierNormalPoints(inout float3 bezierPoints[10],\n    float3 p0PositionWS, float3 p0NormalWS, float3 p1PositionWS, float3 p1NormalWS, float3 p2PositionWS, float3 p2NormalWS) {\n    bezierPoints[7] = CalculateBezierControlNormal(p0PositionWS, p0NormalWS, p1PositionWS, p1NormalWS);\n    bezierPoints[8] = CalculateBezierControlNormal(p1PositionWS, p1NormalWS, p2PositionWS, p2NormalWS);\n    bezierPoints[9] = CalculateBezierControlNormal(p2PositionWS, p2NormalWS, p0PositionWS, p0NormalWS);\n}\n\n\/\/ The patch constant function runs once per triangle, or &quot;patch&quot;\n\/\/ It runs in parallel to the hull function\nTessellationFactors PatchConstantFunction(\n    InputPatch<TessellationControlPoint, 3&gt; patch) {\n    ...\n    TessellationFactors f = (TessellationFactors)0;\n    \/\/ Check if this patch should be culled (it is out of view)\n    if (ShouldClipPatch(...)) {\n        ..\n    } else {\n        ...\n        CalculateBezierControlPoints(f.bezierPoints, \n          patch[0].positionWS, patch[0].normalWS, patch[1].positionWS, \n          patch[1].normalWS, patch[2].positionWS, patch[2].normalWS);\n        CalculateBezierNormalPoints(f.bezierPoints, \n          patch[0].positionWS, patch[0].normalWS, patch[1].positionWS, \n          patch[1].normalWS, patch[2].positionWS, patch[2].normalWS);\n    }\n    return f;\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">struct<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">edge<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #D8DEE9FF\">] : <\/span><span style=\"color: #D8DEE9\">SV_TessFactor<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> inside <\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">SV_InsideTessFactor<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">10<\/span><span style=\"color: #D8DEE9FF\">] : <\/span><span style=\"color: #D8DEE9\">BEZIERPOS<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierControlNormal<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">aNormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bNormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">d<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">v<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">dot<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">d<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">aNormalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bNormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">dot<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">d<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">d<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">normalize<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">aNormalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bNormalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">v<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">d<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">void<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierNormalPoints<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">inout<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">10<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">7<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierControlNormal<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">8<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierControlNormal<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p1PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">9<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierControlNormal<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">p2PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0PositionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ The patch constant function runs once per triangle, or &quot;patch&quot;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ It runs in parallel to the hull function<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PatchConstantFunction<\/span><span style=\"color: #D8DEE9FF\">(<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">InputPatch<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ Check if this patch should be culled (it is out of view)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">if<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #88C0D0\">ShouldClipPatch<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">...<\/span><span style=\"color: #D8DEE9FF\">)) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #ECEFF4\">..<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">else<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #88C0D0\">CalculateBezierControlPoints<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">          <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">          <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #88C0D0\">CalculateBezierNormalPoints<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">          <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">          <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">f<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u5e76\u4e14\u9700\u8981\u6ce8\u610f\uff0c\u6240\u6709\u63d2\u503c\u5f97\u5230\u7684\u6cd5\u7ebf\u5411\u91cf\u90fd\u9700\u8981\u6807\u51c6\u5316\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"float3 CalculateBezierNormal(float3 bary, float3 bezierPoints[10],\n    float3 p0NormalWS, float3 p1NormalWS, float3 p2NormalWS) {\n    return p0NormalWS * (bary.x * bary.x) +\n        p1NormalWS * (bary.y * bary.y) +\n        p2NormalWS * (bary.z * bary.z) +\n        bezierPoints[7] * (2 * bary.x * bary.y) +\n        bezierPoints[8] * (2 * bary.y * bary.z) +\n        bezierPoints[9] * (2 * bary.z * bary.x);\n}\n\nfloat3 CalculateBezierNormalWithSmoothFactor(float3 bary, float smoothing, float3 bezierPoints[10],\n    float3 p0NormalWS, float3 p1NormalWS, float3 p2NormalWS) {\n    float3 flatNormalWS = BarycentricInterpolate(bary, p0NormalWS, p1NormalWS, p2NormalWS);\n    float3 smoothedNormalWS = CalculateBezierNormal(bary, bezierPoints, p0NormalWS, p1NormalWS, p2NormalWS);\n    return normalize(lerp(flatNormalWS, smoothedNormalWS, smoothing));\n}\n\n\/\/ The domain function runs once per vertex in the final, tessellated mesh\n\/\/ Use it to reposition vertices and prepare for the fragment stage\n[domain(&quot;tri&quot;)] \/\/ Signal we're inputting triangles\nInterpolators Domain(\n    TessellationFactors factors, \/\/ The output of the patch constant function\n    OutputPatch<TessellationControlPoint, 3&gt; patch, \/\/ The Input triangle\n    float3 barycentricCoordinates : SV_DomainLocation) { \/\/ The barycentric coordinates of the vertex on the triangle\n\n    Interpolators output;\n    ...\n    \/\/ Calculate tessellation smoothing multipler\n    float smoothing = _TessellationSmoothing;\n    float3 positionWS = CalculateBezierPosition(barycentricCoordinates, smoothing, factors.bezierPoints, patch[0].positionWS, patch[1].positionWS, patch[2].positionWS);\n    float3 normalWS = CalculateBezierNormalWithSmoothFactor(\n        barycentricCoordinates, smoothing, factors.bezierPoints,\n        patch[0].normalWS, patch[1].normalWS, patch[2].normalWS);\n    float3 tangentWS = BARYCENTRIC_INTERPOLATE(tangentWS.xyz);\n    ...\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierNormal<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">10<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">7<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">8<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">+<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">9<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">z<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierNormalWithSmoothFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">10<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">flatNormalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BarycentricInterpolate<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothedNormalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierNormal<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">normalize<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #88C0D0\">lerp<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatNormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothedNormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #D8DEE9FF\">))<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ The domain function runs once per vertex in the final, tessellated mesh<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ Use it to reposition vertices and prepare for the fragment stage<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #88C0D0\">domain<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">tri<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">)] <\/span><span style=\"color: #616E88\">\/\/ Signal we&#39;re inputting triangles<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">Interpolators<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">Domain<\/span><span style=\"color: #D8DEE9FF\">(<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">factors<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ The output of the patch constant function<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">OutputPatch<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ The Input triangle<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">barycentricCoordinates<\/span><span style=\"color: #D8DEE9FF\"> : <\/span><span style=\"color: #D8DEE9\">SV_DomainLocation<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ The barycentric coordinates of the vertex on the triangle<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">Interpolators<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">output<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ Calculate tessellation smoothing multipler<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_TessellationSmoothing<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierPosition<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">barycentricCoordinates<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">factors<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">positionWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierNormalWithSmoothFactor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">barycentricCoordinates<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">factors<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #ECEFF4\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BARYCENTRIC_INTERPOLATE<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u8fd8\u6709\u4e00\u4e2a\u95ee\u9898\u9700\u8981\u6ce8\u610f\uff0c\u5f53\u6211\u4eec\u4f7f\u7528\u4e86\u63d2\u503c\u5f97\u5230\u7684\u6cd5\u7ebf\uff0c\u4e0e\u4e4b\u4e00\u4e00\u5bf9\u5e94\u7684\u5207\u7ebf\u5411\u91cf\u5c31\u4e0d\u518d\u4e0e\u63d2\u503c\u5f97\u5230\u7684\u6cd5\u7ebf\u5411\u91cf\u6b63\u4ea4\u3002\u4e3a\u4e86\u4fdd\u6301\u6b63\u4ea4\u6027\uff0c\u9700\u8981\u91cd\u65b0\u8ba1\u7b97\u4e00\u4e2a\u5207\u7ebf\u5411\u91cf\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"void CalculateBezierNormalAndTangent(\n    float3 bary, float smoothing, float3 bezierPoints[10],\n    float3 p0NormalWS, float3 p0TangentWS, \n    float3 p1NormalWS, float3 p1TangentWS, \n    float3 p2NormalWS, float3 p2TangentWS,\n    out float3 normalWS, out float3 tangentWS) {\n\n    float3 flatNormalWS = BarycentricInterpolate(bary, p0NormalWS, p1NormalWS, p2NormalWS);\n    float3 smoothedNormalWS = CalculateBezierNormal(bary, bezierPoints, p0NormalWS, p1NormalWS, p2NormalWS);\n    normalWS = normalize(lerp(flatNormalWS, smoothedNormalWS, smoothing));\n\n    float3 flatTangentWS = BarycentricInterpolate(bary, p0TangentWS, p1TangentWS, p2TangentWS);\n    float3 flatBitangentWS = cross(flatNormalWS, flatTangentWS);\n    tangentWS = normalize(cross(flatBitangentWS, normalWS));\n}\n\n[domain(&quot;tri&quot;)] \/\/ Signal we're inputting triangles\nInterpolators Domain(\n    TessellationFactors factors, \/\/ The output of the patch constant function\n    OutputPatch<TessellationControlPoint, 3&gt; patch, \/\/ The Input triangle\n    float3 barycentricCoordinates : SV_DomainLocation) { \/\/ The barycentric coordinates of the vertex on the triangle\n    ...\n    float3 normalWS, tangentWS;\n    CalculateBezierNormalAndTangent(\n        barycentricCoordinates, smoothing, factors.bezierPoints,\n        patch[0].normalWS, patch[0].tangentWS.xyz, \n        patch[1].normalWS, patch[1].tangentWS.xyz, \n        patch[2].normalWS, patch[2].tangentWS.xyz,\n        normalWS, tangentWS);\n    ...\n}\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #81A1C1\">void<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierNormalAndTangent<\/span><span style=\"color: #D8DEE9FF\">(<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">10<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0TangentWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1TangentWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2TangentWS<\/span><span style=\"color: #ECEFF4\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">out<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">out<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">flatNormalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BarycentricInterpolate<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothedNormalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">CalculateBezierNormal<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1NormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2NormalWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">normalize<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #88C0D0\">lerp<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatNormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothedNormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #D8DEE9FF\">))<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">flatTangentWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">BarycentricInterpolate<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">bary<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p0TangentWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p1TangentWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">p2TangentWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">flatBitangentWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">cross<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatNormalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">flatTangentWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">normalize<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #88C0D0\">cross<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">flatBitangentWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #D8DEE9FF\">))<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #88C0D0\">domain<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">tri<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">)] <\/span><span style=\"color: #616E88\">\/\/ Signal we&#39;re inputting triangles<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">Interpolators<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">Domain<\/span><span style=\"color: #D8DEE9FF\">(<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">TessellationFactors<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">factors<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ The output of the patch constant function<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">OutputPatch<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9\">TessellationControlPoint<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">3<\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ The Input triangle<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">barycentricCoordinates<\/span><span style=\"color: #D8DEE9FF\"> : <\/span><span style=\"color: #D8DEE9\">SV_DomainLocation<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ The barycentric coordinates of the vertex on the triangle<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">float3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #88C0D0\">CalculateBezierNormalAndTangent<\/span><span style=\"color: #D8DEE9FF\">(<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">barycentricCoordinates<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">smoothing<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">factors<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">bezierPoints<\/span><span style=\"color: #ECEFF4\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">1<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">patch<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #B48EAD\">2<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #ECEFF4\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">normalWS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tangentWS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-144-1024x653.png\" alt=\"\" class=\"wp-image-802 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"653\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-144-1024x653.png\" alt=\"\" class=\"wp-image-802 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-144-1024x653.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-144-300x191.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-144-768x490.png 768w, https:\/\/remoooo.com\/wp-content\/uploads\/image-144.png 1386w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">References<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>https:\/\/www.youtube.com\/watch?v=63ufydgBcIk<\/li>\n\n\n\n<li>https:\/\/nedmakesgames.medium.com\/mastering-tessellation-shaders-and-their-many-uses-in-unity-9caeb760150e<\/li>\n\n\n\n<li>https:\/\/zhuanlan.zhihu.com\/p\/148247621<\/li>\n\n\n\n<li>https:\/\/zhuanlan.zhihu.com\/p\/124235713<\/li>\n\n\n\n<li>https:\/\/zhuanlan.zhihu.com\/p\/141099616<\/li>\n\n\n\n<li>https:\/\/zhuanlan.zhihu.com\/p\/42550699<\/li>\n\n\n\n<li>https:\/\/en.wikipedia.org\/wiki\/Barycentric_coordinate_system<\/li>\n\n\n\n<li>https:\/\/zhuanlan.zhihu.com\/p\/359999755<\/li>\n\n\n\n<li>https:\/\/zhuanlan.zhihu.com\/p\/629364817<\/li>\n\n\n\n<li>https:\/\/zhuanlan.zhihu.com\/p\/629202115<\/li>\n\n\n\n<li>https:\/\/perso.telecom-paristech.fr\/boubek\/papers\/PhongTessellation\/PhongTessellation.pdf<\/li>\n\n\n\n<li>http:\/\/alex.vlachos.com\/graphics\/CurvedPNTriangles.pdf<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u6807\u7b7e \uff1a\u5165\u95e8\/Shader\/\u66f2\u9762\u7ec6\u5206\u7740\u8272\u5668\/Displacement\u8d34\u56fe\/LOD\/\u5e73\u6ed1\u8f6e\u5ed3\/Early Cul [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":784,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[53],"tags":[14,38,37],"class_list":["post-756","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech","tag-shader","tag-tessellation","tag-unity"],"_links":{"self":[{"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/posts\/756","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/comments?post=756"}],"version-history":[{"count":3,"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/posts\/756\/revisions"}],"predecessor-version":[{"id":845,"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/posts\/756\/revisions\/845"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/media\/784"}],"wp:attachment":[{"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/media?parent=756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/categories?post=756"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/tags?post=756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}