{"id":1326,"date":"2023-11-02T22:47:26","date_gmt":"2023-11-02T13:47:26","guid":{"rendered":"https:\/\/xn--k10aa.com\/?p=1326"},"modified":"2024-10-20T21:12:31","modified_gmt":"2024-10-20T12:12:31","slug":"202hw1","status":"publish","type":"post","link":"https:\/\/remoooo.com\/en\/202hw1\/","title":{"rendered":"Games202 Assignment 1 Soft Shadow Implementation"},"content":{"rendered":"\n<p>\u672c\u6587\u5185\u5bb9\uff1aJS\u548cWebGL\u76f8\u5173\u77e5\u8bc6\u30012-pass shadow\u7b97\u6cd5\u3001BIAS\u7f13\u89e3\u81ea\u906e\u6321\u3001PCF\u7b97\u6cd5\u3001PCSS\u3001\u7269\u4f53\u79fb\u52a8\u3002<\/p>\n\n\n\n<p>\u9879\u76ee\u6e90\u4ee3\u7801\uff1a<\/p>\n\n\n\n<p class=\"has-text-align-center\"><a href=\"http:\/\/github.com\/Remyuu\/GAMES202-Homework\" data-type=\"link\" data-id=\"github.com\/Remyuu\/GAMES202-Homework\">GitHub &#8211; Remyuu\/GAMES202-Homework: GAMES202-Homework\u200b<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-206.png\" alt=\"\" class=\"wp-image-1330 lazyload\"\/><noscript><img decoding=\"async\" width=\"1440\" height=\"967\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-206.png\" alt=\"\" class=\"wp-image-1330 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-206.png 1440w, https:\/\/remoooo.com\/wp-content\/uploads\/image-206-300x201.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-206-1024x688.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-206-768x516.png 768w\" sizes=\"(max-width: 1440px) 100vw, 1440px\" \/><\/noscript><\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter is-resized\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-204.png\" alt=\"\" class=\"wp-image-1328 lazyload\" style=\"width:364px;height:auto\"\/><noscript><img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-204.png\" alt=\"\" class=\"wp-image-1328 lazyload\" style=\"width:364px;height:auto\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-204.png 800w, https:\/\/remoooo.com\/wp-content\/uploads\/image-204-300x300.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-204-150x150.png 150w, https:\/\/remoooo.com\/wp-content\/uploads\/image-204-768x768.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/noscript><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e0a\u9762\u8fd9\u4e2a\u56fe\u753b\u7740\u597d\u73a9\u3002<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u5199\u5728\u524d\u9762<\/h3>\n\n\n\n<p>\u7531\u4e8e\u6211\u5bf9JS\u4ee5\u53caWebGL\u4e00\u7a8d\u4e0d\u901a\uff0c\u53ea\u80fd\u9047\u4e8b\u4e0d\u51b3 console.log() \u3002<\/p>\n\n\n\n<p>\u9664\u4e86\u4f5c\u4e1a\u8981\u6c42\u7684\u5185\u5bb9\uff0c\u6211\u5728coding\u7684\u65f6\u5019\u4e5f\u6709\u4e00\u4e9b\u7591\u95ee\uff0c\u5e0c\u671b\u5927\u4f6c\u89e3\u7b54QAQ\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5982\u4f55\u5b9e\u73b0\u52a8\u6001\u7684\u70b9\u5149\u6e90\u9634\u5f71\u6548\u679c\uff1f\u6211\u4eec\u9700\u8981\u4f7f\u7528\u70b9\u5149\u6e90\u9634\u5f71\u6280\u672f\u624d\u53ef\u4ee5\u5b9e\u73b0\u4e07\u5411\u9634\u5f71\u8d34\u56fe\uff08omnidirectional shadow maps\uff09\uff0c\u5177\u4f53\u600e\u4e48\u505a\uff1f<\/li>\n\n\n\n<li>possionDiskSamples\u51fd\u6570\u5e76\u4e0d\u662f\u771f\u6b63\u7684\u6cca\u677e\u5706\u76d8\u5206\u5e03\uff1f<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u6846\u67b6\u4fee\u6b63<\/h3>\n\n\n\n<p>\u5728\u4f5c\u4e1a\u5f00\u59cb\u65f6\u8bf7\u5148\u5bf9\u4f5c\u4e1a\u6846\u67b6\u505a\u4e00\u4e9b\u4fee\u6b63\u3002\u6846\u67b6\u6539\u52a8\u539f\u6587\uff1a<a target=\"_blank\" href=\"https:\/\/games-cn.org\/forums\/topic\/zuoyeziliao-daimakanwu\/\" rel=\"noreferrer noopener\">https:\/\/games-cn.org\/forums\/topic\/zuoyeziliao-daimakanwu\/<\/a><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6846\u67b6\u63d0\u4f9b\u7684 unpack \u51fd\u6570\u7b97\u6cd5\u5b9e\u73b0\u4e0d\u51c6\u786e\uff0c\u5728\u4e0d\u52a0 bias \u65f6\uff0c\u4f1a\u5bfc\u81f4\u4e25\u91cd\u7684 banding\uff08\u5730\u9762\u4e00\u534a\u767d\u4e00\u534a\u9ed1\u800c\u4e0d\u662f\u5178\u578b\u7684 z-fighting \u6548\u679c\uff09\uff0c\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u5f71\u54cd\u4f5c\u4e1a\u8c03\u8bd5\u3002<\/li>\n<\/ul>\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=\"\/\/ homework1\/src\/shaders\/shadowShader\/shadowFragment.glsl\nvec4 pack (float depth) {\n    \/\/ \u4f7f\u7528rgba 4\u5b57\u8282\u517132\u4f4d\u6765\u5b58\u50a8z\u503c,1\u4e2a\u5b57\u8282\u7cbe\u5ea6\u4e3a1\/255\n    const vec4 bitShift = vec4(1.0, 255.0, 255.0 * 255.0, 255.0 * 255.0 * 255.0);\n    const vec4 bitMask = vec4(1.0\/255.0, 1.0\/255.0, 1.0\/255.0, 0.0);\n    \/\/ gl_FragCoord:\u7247\u5143\u7684\u5750\u6807,fract():\u8fd4\u56de\u6570\u503c\u7684\u5c0f\u6570\u90e8\u5206\n    vec4 rgbaDepth = fract(depth * bitShift); \/\/\u8ba1\u7b97\u6bcf\u4e2a\u70b9\u7684z\u503c\n    rgbaDepth -= rgbaDepth.gbaa * bitMask; \/\/ Cut off the value which do not fit in 8 bits\n    return rgbaDepth;\n}\n\n\/\/ homework1\/src\/shaders\/phongShader\/phongFragment.glsl\nfloat unpack(vec4 rgbaDepth) {\n    const vec4 bitShift = vec4(1.0, 1.0\/255.0, 1.0\/(255.0*255.0), 1.0\/(255.0*255.0*255.0));\n    return dot(rgbaDepth, bitShift);\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\">\/\/ homework1\/src\/shaders\/shadowShader\/shadowFragment.glsl<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">vec4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">pack<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">depth<\/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\">\/\/ \u4f7f\u7528rgba 4\u5b57\u8282\u517132\u4f4d\u6765\u5b58\u50a8z\u503c,1\u4e2a\u5b57\u8282\u7cbe\u5ea6\u4e3a1\/255<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">vec4<\/span><span style=\"color: #D8DEE9FF\"> bitShift <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">vec4<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">255.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">255.0<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">255.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">255.0<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">255.0<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">255.0<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">vec4<\/span><span style=\"color: #D8DEE9FF\"> bitMask <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">vec4<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #B48EAD\">255.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #B48EAD\">255.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #B48EAD\">255.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.0<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ gl_FragCoord:\u7247\u5143\u7684\u5750\u6807,fract():\u8fd4\u56de\u6570\u503c\u7684\u5c0f\u6570\u90e8\u5206<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">vec4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">rgbaDepth<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">fract<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">depth<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bitShift<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/\u8ba1\u7b97\u6bcf\u4e2a\u70b9\u7684z\u503c<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">rgbaDepth<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">rgbaDepth<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">gbaa<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bitMask<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ Cut off the value which do not fit in 8 bits<\/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\">rgbaDepth<\/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\">\/\/ homework1\/src\/shaders\/phongShader\/phongFragment.glsl<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">unpack<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">vec4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">rgbaDepth<\/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\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">vec4<\/span><span style=\"color: #D8DEE9FF\"> bitShift <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">vec4<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #B48EAD\">255.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">255.0<\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #B48EAD\">255.0<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">255.0<\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #B48EAD\">255.0<\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #B48EAD\">255.0<\/span><span style=\"color: #D8DEE9FF\">))<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">dot<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">rgbaDepth<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bitShift<\/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<ul class=\"wp-block-list\">\n<li>\u6e05\u5c4f\u8fd8\u9700\u8981\u6dfb\u52a0\u4e00\u4e2aglClear\u3002<\/li>\n<\/ul>\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=\"\/\/ homework1\/src\/renderers\/WebGLRenderer.js\ngl.clearColor(0.0, 0.0, 0.0,1.0);\/\/ Clear to black, fully opaque\ngl.clearDepth(1.0);\/\/ Clear everything\ngl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);\" 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\">\/\/ homework1\/src\/renderers\/WebGLRenderer.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">clearColor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">0.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #616E88\">\/\/ Clear to black, fully opaque<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">clearDepth<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #616E88\">\/\/ Clear everything<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">clear<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">COLOR_BUFFER_BIT<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">|<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">DEPTH_BUFFER_BIT<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">JS\u6700\u57fa\u7840\u7684\u77e5\u8bc6<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u53d8\u91cf<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728JavaScript\u4e2d\uff0c\u6211\u4eec\u4e3b\u8981\u4f7f\u7528 var\uff0clet \u548c const \u8fd9\u4e09\u4e2a\u5173\u952e\u5b57\u6765\u58f0\u660e\u53d8\u91cf\/\u5e38\u91cf\u3002<\/li>\n\n\n\n<li>var\u662f\u58f0\u660e\u53d8\u91cf\u7684\u5173\u952e\u5b57\uff0c\u53ef\u4ee5\u5728<strong>\u6574\u4e2a\u51fd\u6570\u8303\u56f4<\/strong>\u5185\u4f7f\u7528\u58f0\u660e\u7684<strong>\u53d8\u91cf<\/strong>\uff08\u51fd\u6570\u4f5c\u7528\u57df\uff09\u3002<\/li>\n\n\n\n<li>let\u884c\u4e3a\u4e0e var \u7c7b\u4f3c\uff0c\u4e5f\u662f\u58f0\u660e\u4e86\u4e00\u4e2a<strong>\u53d8\u91cf<\/strong>\uff0c\u4f46\u662f let \u7684<strong>\u4f5c\u7528\u57df\u9650\u5236\u5728\u5757\u4e2d<\/strong>\uff08\u5757\u4f5c\u7528\u57df\uff09\uff0c\u6bd4\u5982 for \u5faa\u73af\u6216 if \u8bed\u53e5\u4e2d\u5b9a\u4e49\u7684\u5757\u3002<\/li>\n\n\n\n<li>const\uff1a\u7528\u4e8e\u58f0\u660e<strong>\u5e38\u91cf<\/strong>\u3002 const \u7684\u4f5c\u7528\u57df\u4e5f\u662f<strong>\u5757\u7ea7\u522b<\/strong>\u7684\u3002<\/li>\n\n\n\n<li>\u63a8\u8350\u4f7f\u7528 let \u548c const \u800c\u4e0d\u662f var \u6765\u58f0\u660e\u53d8\u91cf\uff0c\u56e0\u4e3a\u5b83\u4eec\u9075\u5faa\u5757\u7ea7\u4f5c\u7528\u57df\uff0c\u66f4\u7b26\u5408\u5927\u591a\u6570\u7f16\u7a0b\u8bed\u8a00\u4e2d\u7684\u4f5c\u7528\u57df\u89c4\u5219\uff0c\u66f4\u6613\u7406\u89e3\u548c\u9884\u6d4b\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u7c7b<\/h3>\n\n\n\n<p>\u4e00\u4e2a\u57fa\u672c\u7684JavaScript\u7c7b\u7684\u7ed3\u6784\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=\"class MyClass {\n  constructor(parameter1, parameter2) {\n    this.property1 = parameter1;\n    this.property2 = parameter2;\n  }\n  method1() {\n    \/\/ method body\n  }\n  static sayHello() {\n    console.log('Hello!');\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\">class<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">MyClass<\/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\">constructor<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9\">parameter1<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">parameter2<\/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\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">property1<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">parameter1<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">property2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">parameter2<\/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: #88C0D0\">method1<\/span><span style=\"color: #ECEFF4\">()<\/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\">\/\/ method body<\/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\">static<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">sayHello<\/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: #D8DEE9\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">log<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">Hello!<\/span><span style=\"color: #ECEFF4\">&#39;<\/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: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u521b\u5efa\u5b9e\u4f8b\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=\"let myInstance = new MyClass('value1', 'value2');\nmyInstance.method1(); \/\/ \u8c03\u7528\u7c7b\u7684\u65b9\u6cd5\" 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\">let<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">myInstance<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">new<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">MyClass<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">value1<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">value2<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">myInstance<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">method1<\/span><span style=\"color: #D8DEE9FF\">()<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ \u8c03\u7528\u7c7b\u7684\u65b9\u6cd5<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u4e5f\u53ef\u4ee5\u76f4\u63a5\u8c03\u7528\u9759\u6001\u7c7b\uff08\u4e0d\u7528\u521b\u5efa\u5b9e\u4f8b\u4e86\uff09\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=\"MyClass.sayHello();  \/\/ &quot;Hello!&quot;\" 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\">MyClass<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">sayHello<\/span><span style=\"color: #D8DEE9FF\">()<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #616E88\">\/\/ &quot;Hello!&quot;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u9879\u76ee\u6d41\u7a0b\u7b80\u8ff0<\/h2>\n\n\n\n<p>\u7a0b\u5e8f\u5165\u53e3\u662fengine.js\uff0c\u4e3b\u51fd\u6570 GAMES202Main \u3002\u9996\u5148\u521d\u59cb\u5316WebGL\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5305\u62ec\u76f8\u673a\u3001\u76f8\u673a\u4ea4\u4e92\u3001\u6e32\u67d3\u5668\u3001\u5149\u6e90\u3001\u7269\u4f53\u52a0\u8f7d\u3001\u7528\u6237GUI\u754c\u9762\u4ee5\u53ca\u6700\u91cd\u8981\u7684\u4e3b\u5faa\u73afmain loop\u90e8\u5206\u3002<\/p>\n\n\n\n<p>\u7269\u4f53\u52a0\u8f7d\u8fc7\u7a0b\uff0c\u4f1a\u8c03\u7528loadOBJ.js\u3002\u9996\u5148\u4ece\u6587\u4ef6\u4e2d\u52a0\u8f7d\u5bf9\u5e94\u7684glsl\uff0c\u6784\u5efaPhong\u6750\u8d28\u3001Phong\u76f8\u5173\u9634\u5f71\u8fd8\u6709\u9634\u5f71\u7684\u6750\u8d28\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=\"\/\/ loadOBJ.js\ncase 'PhongMaterial':\n    material = buildPhongMaterial(colorMap, mat.specular.toArray(), light, Translation, Scale, &quot;.\/src\/shaders\/phongShader\/phongVertex.glsl&quot;, &quot;.\/src\/shaders\/phongShader\/phongFragment.glsl&quot;);\n    shadowMaterial = buildShadowMaterial(light, Translation, Scale, &quot;.\/src\/shaders\/shadowShader\/shadowVertex.glsl&quot;, &quot;.\/src\/shaders\/shadowShader\/shadowFragment.glsl&quot;);\n    break;\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\">\/\/ loadOBJ.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">case<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">PhongMaterial<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">:<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">material<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">buildPhongMaterial<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">colorMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">mat<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">specular<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">toArray<\/span><span style=\"color: #D8DEE9FF\">()<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">light<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Translation<\/span><span style=\"color: #ECEFF4\">,<\/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: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">.\/src\/shaders\/phongShader\/phongVertex.glsl<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">.\/src\/shaders\/phongShader\/phongFragment.glsl<\/span><span style=\"color: #ECEFF4\">&quot;<\/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\">shadowMaterial<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">buildShadowMaterial<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">light<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Translation<\/span><span style=\"color: #ECEFF4\">,<\/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: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">.\/src\/shaders\/shadowShader\/shadowVertex.glsl<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">.\/src\/shaders\/shadowShader\/shadowFragment.glsl<\/span><span style=\"color: #ECEFF4\">&quot;<\/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\">break;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u7136\u540e\uff0c\u901a\u8fc7MeshRender\u76f4\u63a5\u751f\u62102-pass\u9634\u5f71Shadow Map\u548c\u5e38\u89c4\u7684Phong\u6750\u8d28\uff0c\u5177\u4f53\u4ee3\u7801\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=\"\/\/ loadOBJ.js\nmaterial.then((data) =&gt; {\n    \/\/ console.log(&quot;\u73b0\u5728\u5236\u4f5c\u8868\u9762\u6750\u8d28&quot;)\n    let meshRender = new MeshRender(renderer.gl, mesh, data);\n    renderer.addMeshRender(meshRender);\n});\nshadowMaterial.then((data) =&gt; {\n    \/\/ console.log(&quot;\u73b0\u5728\u5236\u4f5c\u9634\u5f71\u6750\u8d28&quot;)\n    let shadowMeshRender = new MeshRender(renderer.gl, mesh, data);\n    renderer.addShadowMeshRender(shadowMeshRender);\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\">\/\/ loadOBJ.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">material<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">then<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9\">data<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=&gt;<\/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\">\/\/ console.log(&quot;\u73b0\u5728\u5236\u4f5c\u8868\u9762\u6750\u8d28&quot;)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">let<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">meshRender<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">new<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">MeshRender<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">renderer<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">mesh<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">data<\/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\">renderer<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">addMeshRender<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">meshRender<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">shadowMaterial<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">then<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9\">data<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=&gt;<\/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\">\/\/ console.log(&quot;\u73b0\u5728\u5236\u4f5c\u9634\u5f71\u6750\u8d28&quot;)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">let<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadowMeshRender<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">new<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">MeshRender<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">renderer<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">mesh<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">data<\/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\">renderer<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">addShadowMeshRender<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shadowMeshRender<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u6ce8\u610f\u5230\uff0cMeshRender\u5177\u5907\u4e00\u5b9a\u7684\u901a\u7528\u6027\uff0c\u5b83\u63a5\u53d7\u4efb\u4f55\u7c7b\u578b\u7684\u6750\u8d28\u4f5c\u4e3a\u5176\u53c2\u6570\u3002\u5177\u4f53\u662f\u600e\u4e48\u533a\u5206\u7684\u5462\uff1f\u901a\u8fc7\u5224\u65ad\u4f20\u5165\u7684material.frameBuffer\u662f\u5426\u4e3a\u7a7a\uff0c\u5982\u679c\u662f\u7a7a\uff0c\u5c06\u52a0\u8f7d\u8868\u9762\u6750\u8d28\uff0c\u5426\u5219\u52a0\u8f7d\u9634\u5f71\u56feShadow Map\u3002\u5728MeshRender.js\u7684draw()\u51fd\u6570\u4e2d\uff0c\u770b\u5230\u5982\u4e0b\u4ee3\u7801\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=\"\/\/ MeshRender.js\nif (this.material.frameBuffer != null) {\n    \/\/ Shadow map\n    gl.viewport(0.0, 0.0, resolution, resolution);\n} else {\n    gl.viewport(0.0, 0.0, window.screen.width, window.screen.height);\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\">\/\/ MeshRender.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">if<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">material<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">frameBuffer<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">!=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">null<\/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\">\/\/ Shadow map<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">viewport<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">0.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">resolution<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">resolution<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><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\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">viewport<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">0.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">window<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">screen<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">width<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">window<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">screen<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">height<\/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>\u5229\u7528MeshRender\u751f\u6210\u4e86\u9634\u5f71\u4e4b\u540e\uff0c\u63a8\u5165\u5230renderer\u4e2d\uff0c\u53ef\u4ee5\u5728 WebGLRenderer.js \u4e2d\u627e\u5230\u5bf9\u5e94\u5b9e\u73b0\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">addShadowMeshRender(mesh) { this.shadowMeshes.push(mesh); }<\/pre>\n\n\n\n<p>\u6700\u540e\u8fdb\u5165mainLoop()\u4e3b\u5faa\u73af\u5b9e\u73b0\u4e00\u5e27\u5e27\u7684\u66f4\u65b0\u753b\u9762\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u9879\u76ee\u6d41\u7a0b\u8be6\u7ec6\u89e3\u91ca<\/h3>\n\n\n\n<p>\u8fd9\u4e00\u7ae0\u8282\u5c06\u4f1a\u4ece\u4e00\u4e2a\u5c0f\u95ee\u9898\u51fa\u53d1\uff0c\u63a2\u8ba8\u7247\u6bb5\u7740\u8272\u5668\u662f\u5982\u4f55\u6784\u9020\u7684\u3002\u8fd9\u5c06\u4f1a\u4e32\u8054\u8d77\u51e0\u4e4e\u6574\u4e2a\u9879\u76ee\uff0c\u800c\u8fd9\u4e5f\u662f\u6211\u8ba4\u4e3a\u6bd4\u8f83\u8212\u670d\u7684\u9605\u8bfb\u9879\u76ee\u6d41\u7a0b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">glsl\u662f\u5728\u54ea\u91cc\u5de5\u4f5c\uff1f &#8212; \u4ece\u7247\u6bb5\u7740\u8272\u5668\u7684\u6d41\u7a0b\u5165\u624b\u8be6\u7ec6\u8bb2\u89e3\u4ee3\u7801\u6d41\u7a0b<\/h3>\n\n\n\n<p>\u5728\u4e0a\u6587\u4e2d\u6211\u4eec\u5e76\u6ca1\u6709\u8be6\u7ec6\u63d0\u53caglsl\u6587\u4ef6\u662f\u600e\u4e48\u8c03\u7528\u7684\uff0c\u8fd9\u91cc\u6211\u4eec\u8be6\u7ec6\u8bf4\u8bf4\u3002<\/p>\n\n\n\n<p>\u9996\u5148\u5728<strong>loadOBJ.js<\/strong>\u4e2d\u9996\u6b21\u7528\u8fc7\u8def\u5f84\u7684\u65b9\u5f0f\u5c06.glsl\u6587\u4ef6\u5f15\u5165\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=\"\/\/ loadOBJ.js - function loadOBJ()\nmaterial = buildPhongMaterial(colorMap, mat.specular.toArray(), light, Translation, Scale, &quot;.\/src\/shaders\/phongShader\/phongVertex.glsl&quot;, &quot;.\/src\/shaders\/phongShader\/phongFragment.glsl&quot;);\nshadowMaterial = buildShadowMaterial(light, Translation, Scale, &quot;.\/src\/shaders\/shadowShader\/shadowVertex.glsl&quot;, &quot;.\/src\/shaders\/shadowShader\/shadowFragment.glsl&quot;);\" 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\">\/\/ loadOBJ.js - function loadOBJ()<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">material<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">buildPhongMaterial<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">colorMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">mat<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">specular<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">toArray<\/span><span style=\"color: #D8DEE9FF\">()<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">light<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Translation<\/span><span style=\"color: #ECEFF4\">,<\/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: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">.\/src\/shaders\/phongShader\/phongVertex.glsl<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">.\/src\/shaders\/phongShader\/phongFragment.glsl<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">shadowMaterial<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">buildShadowMaterial<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">light<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Translation<\/span><span style=\"color: #ECEFF4\">,<\/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: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">.\/src\/shaders\/shadowShader\/shadowVertex.glsl<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">.\/src\/shaders\/shadowShader\/shadowFragment.glsl<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u8fd9\u91cc\u4ee5phongFragment.glsl\u4e3a\u4f8b\u5b50\uff0cphongFragment.glsl\u901a\u8fc7\u4f4d\u4e8e PhongMaterial.js \u7684buildPhongMaterial\u51fd\u6570\u4e2d\u7684 getShaderString\u65b9\u6cd5\u5c06glsl\u4ee3\u7801\u4ece\u786c\u76d8\u4e2d\u52a0\u8f7d\u8fdb\u6765\uff0c\u4e0e\u6b64\u540c\u65f6\u5c06glsl\u4ee3\u7801\u901a\u8fc7\u6784\u9020\u53c2\u6570\u7684\u5f62\u5f0f\u4f20\u5165\u5e76\u7528\u4e4b\u6784\u9020\u4e00\u4e2aPhongMaterial\u5bf9\u8c61\u3002PhongMaterial\u5728\u6784\u9020\u7684\u8fc7\u7a0b\u4e2d\u4f1a\u8c03\u7528super()\u51fd\u6570\u5b9e\u73b0\u7236\u7c7bMaterial.js\u7684\u6784\u9020\u51fd\u6570\uff0c\u5373\u5c06glsl\u4ee3\u7801\u4f20\u5230Material.js\u4e2d\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=\"\/\/ PhongMaterial.js\nsuper({...}, [], ..., fragmentShader);\" 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\">\/\/ PhongMaterial.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">super<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">{<\/span><span style=\"color: #81A1C1\">...<\/span><span style=\"color: #ECEFF4\">},<\/span><span style=\"color: #D8DEE9FF\"> []<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">...<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">fragmentShader<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5728c++\u4e2d\uff0c\u5b50\u7c7b\u53ef\u4ee5\u9009\u62e9\u662f\u5426\u5b8c\u5168\u7ee7\u627f\u7236\u7c7b\u7684\u6784\u9020\u51fd\u6570\u7684\u53c2\u6570\u3002\u8fd9\u91cc\u7236\u7c7b\u7684\u6784\u9020\u51fd\u6570\u67095\u4e2a\uff0c\u5b9e\u9645\u53ea\u5b9e\u73b0\u4e864\u4e2a\uff0c\u8fd9\u4e5f\u662f\u5b8c\u5168\u6ca1\u95ee\u9898\u7684\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u5728Material.js\u4e2d\uff0c\u5b50\u7c7b\u901a\u8fc7\u6784\u9020\u51fd\u6570\u7684\u7b2c\u56db\u4e2a\u53c2\u6570#fsSrc\u5c06glsl\u4ee3\u7801\u4f20\u5230\u4e86\u6b64\u5904\u3002\u81f3\u6b64\uff0cglsl\u4ee3\u7801\u7684\u4f20\u9001\u4e4b\u8def\u5c31<strong>\u8d70\u5230\u4e86\u5c3d\u5934<\/strong>\uff0c\u63a5\u4e0b\u6765\u7b49\u5f85\u4ed6\u7684\u5c06\u662f\u4e00\u4e2a\u540d\u4e3acompile()\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=\"\/\/ Material.js\nthis.#fsSrc = fsSrc;\n...\ncompile(gl) {\n    return new Shader(..., ..., this.#fsSrc,{...});\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\">\/\/ Material.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">#fsSrc<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">fsSrc<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">compile<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">gl<\/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\">new<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">Shader<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">...<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">...<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">#fsSrc<\/span><span style=\"color: #ECEFF4\">,{<\/span><span style=\"color: #81A1C1\">...<\/span><span style=\"color: #ECEFF4\">}<\/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>\u81f3\u4e8e\u8fd9\u4e2acompile\u51fd\u6570\u4ec0\u4e48\u65f6\u5019\u8c03\u7528\u5462\uff1f\u56de\u5230loadOBJ.js\u7684\u6d41\u7a0b\u4e2d\uff0c\u73b0\u5728\u6211\u4eec\u5df2\u7ecf\u5b8c\u5168\u6267\u884c\u5b8c\u6bd5buildPhongMaterial()\u4ee3\u7801\uff0c\u63a5\u4e0b\u6765\u5c31\u5230\u4e86\u4e0a\u4e00\u5c0f\u8282\u63d0\u53ca\u5230\u7684then()\u90e8\u5206\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u6ce8\u610f\uff0cloadOBJ()\u53ea\u662f\u4e00\u4e2a\u51fd\u6570\uff0c\u4e0d\u662f\u5bf9\u8c61\uff01<\/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=\"\/\/ loadOBJ.js\nmaterial.then((data) =&gt; {\n    let meshRender = new MeshRender(renderer.gl, mesh, data);\n    renderer.addMeshRender(meshRender);\n    renderer.ObjectID[ObjectID][0].push(renderer.meshes.length - 1);\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\">\/\/ loadOBJ.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">material<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">then<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9\">data<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=&gt;<\/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\">let<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">meshRender<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">new<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">MeshRender<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">renderer<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">mesh<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">data<\/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\">renderer<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">addMeshRender<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">meshRender<\/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\">renderer<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">ObjectID<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">ObjectID<\/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: #88C0D0\">push<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">renderer<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">meshes<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9FF\">length <\/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: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u5728\u6784\u9020MeshRender\u5bf9\u8c61\u65f6\uff0c\u5c31\u4f1a\u8c03\u7528compile()\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=\"\/\/ MeshRender.js\nconstructor(gl, mesh, material) {\n...\n    this.shader = this.material.compile(gl);\n}\n\/\/ Material.js\ncompile(gl) {\n    return new Shader(..., ..., this.#fsSrc,{...});\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\">\/\/ MeshRender.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">constructor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">mesh<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">material<\/span><span style=\"color: #D8DEE9FF\">) <\/span><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: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">shader<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">material<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">compile<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">gl<\/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: #616E88\">\/\/ Material.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">compile<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">gl<\/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\">new<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">Shader<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">...<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">...<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">#fsSrc<\/span><span style=\"color: #ECEFF4\">,{<\/span><span style=\"color: #81A1C1\">...<\/span><span style=\"color: #ECEFF4\">}<\/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\uff0c\u6211\u4eec\u5177\u4f53\u770b\u4e00\u4e0bshader.js\u7684\u6784\u9020\u3002Material\u5728\u6784\u9020shader\u5bf9\u8c61\u65f6\u5b9e\u73b0\u4e86\u6240\u6709\u7684\u56db\u4e2a\u6784\u9020\u53c2\u6570\u3002\u8fd9\u91cc\u8fd8\u662f\u6311\u91cd\u70b9fsSrc\u770b\uff0c\u5373\u7ee7\u7eed\u770b\u770bglsl\u4ee3\u7801\u63a5\u4e0b\u6765\u7684\u547d\u8fd0\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.js\nconstructor(gl, vsSrc, fsSrc, shaderLocations) {\n    ...\n    const fs = this.compileShader(fsSrc, ...);\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.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">constructor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">vsSrc<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">fsSrc<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shaderLocations<\/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\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">fs<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">compileShader<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">fsSrc<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">...<\/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>\u5728\u6784\u9020shader\u5bf9\u8c61\u5b9e\u73b0fs\u7f16\u8bd1\u7740\u8272\u5668\u65f6\u662f\u901a\u8fc7compileShader()\u51fd\u6570\u7684\u3002\u8fd9\u4e2acompileShader\u51fd\u6570\u4f1a\u521b\u5efa\u4e00\u4e2a\u5168\u5c40\u53d8\u91cfshader\uff0c\u4ee3\u7801\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.js\ncompileShader(shaderSource, shaderType) {\n    const gl = this.gl;\n    var shader = gl.createShader(shaderType);\n    gl.shaderSource(shader, shaderSource);\n    gl.compileShader(shader);\n\n    if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {\n        console.error(shaderSource);\n        console.error('shader compiler error:\\n' + gl.getShaderInfoLog(shader));\n    }\n\n    return shader;\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.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">compileShader<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shaderSource<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shaderType<\/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\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">var<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shader<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">createShader<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shaderType<\/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\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">shaderSource<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shader<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shaderSource<\/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\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">compileShader<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shader<\/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: #81A1C1\">if<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #81A1C1\">!<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">getShaderParameter<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shader<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">COMPILE_STATUS<\/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\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">error<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shaderSource<\/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\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">error<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">shader compiler error:<\/span><span style=\"color: #EBCB8B\">\\n<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">getShaderInfoLog<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shader<\/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>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shader<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u8fd9\u4e2agl\u662f\u4ec0\u4e48\u5462\uff1f\u662f\u5728loadOBJ()\u901a\u8fc7\u6784\u9020MeshRender\u5bf9\u8c61\u65f6\u4ee5\u53c2\u6570renderer.gl\u4e00\u8def\u4f20\u5230shader.js\u4e2d\u7684\u3002\u800crenderer\u5219\u662floadOBJ()\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\uff0c\u5728engine.js\u4e2d\u4f20\u5165\u3002<\/p>\n\n\n\n<p>\u5b9e\u9645\u4e0aloadOBJ.js\u4e2drenderer\u662f\u4e00\u4e2aWebGLRenderer\u5bf9\u8c61\u3002\u800crenderer.gl\u7684gl\u662f\u5728engine.js\u4e2d\u521b\u5efa\u7684\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=\"\/\/ engine.js\nconst gl = canvas.getContext('webgl');\" 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\">\/\/ engine.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">canvas<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">getContext<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">webgl<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u800cgl\u53ef\u4ee5\u7406\u89e3\u4e3a\u4eceindex.html\u4e2d\u83b7\u53d6canvas\u7684WebGL\u5bf9\u8c61\u3002\u5b9e\u9645\u4e0agl\u4e3a\u5f00\u53d1\u8005\u63d0\u4f9b\u4e86\u4e00\u4e2a\u63a5\u53e3\u6765\u4e0eWebGL API\u8fdb\u884c\u4ea4\u4e92\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=\"<!-- index.html --&gt;\n<canvas id=&quot;glcanvas&quot;&gt;<\/canvas&gt;\" 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\">&lt;!--<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">index<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">html<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">--&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">&lt;canvas<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">id<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">glcanvas<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #81A1C1\">&gt;&lt;\/canvas&gt;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>WebGL\u63a8\u8350\u53c2\u8003\u8d44\u6599\uff1a<\/p>\n<\/blockquote>\n\n\n\n<ol class=\"wp-block-list\">\n<li>https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/WebGL_API<\/li>\n\n\n\n<li>https:\/\/webglfundamentals.org<\/li>\n\n\n\n<li>https:\/\/www.w3cschool.cn\/webgl\/vjxu1jt0.html<\/li>\n<\/ol>\n\n\n\n<p>Tips:\u7f51\u7ad9\u90fd\u6709\u5bf9\u5e94\u7684\u4e2d\u6587\u7248\u672c\uff0c\u4f46\u662f\u6709\u80fd\u529b\u7684\u8fd8\u662f\u63a8\u8350\u9605\u8bfb\u82f1\u6587\u7248\u672c\uff5e WebGL API\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API<\/li>\n\n\n\n<li>https:\/\/webglfundamentals.org\/docs\/<\/li>\n<\/ol>\n\n\n\n<p>\u77e5\u9053\u4e86gl\u662f\u4ec0\u4e48\u4e4b\u540e\uff0c\u81ea\u7136\u4e5f\u5c31\u53d1\u73b0\u4e86\u9879\u76ee\u6846\u67b6\u662f\u5728\u54ea\u91cc\u901a\u8fc7\u4ec0\u4e48\u65b9\u5f0f\u4e0eWebGL\u8054\u7cfb\u5728\u4e00\u8d77\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=\"\/\/ Shader.js\ncompileShader(shaderSource, shaderType) {\n    const gl = this.gl;\n    var shader = gl.createShader(shaderType);\n    gl.shaderSource(shader, shaderSource);\n    gl.compileShader(shader);\n\n    if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {\n        console.error(shaderSource);\n        console.error('shader compiler error:\\n' + gl.getShaderInfoLog(shader));\n    }\n\n    return shader;\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.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">compileShader<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shaderSource<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shaderType<\/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\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">var<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shader<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">createShader<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shaderType<\/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\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">shaderSource<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shader<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shaderSource<\/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\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">compileShader<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shader<\/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: #81A1C1\">if<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #81A1C1\">!<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">getShaderParameter<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shader<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">COMPILE_STATUS<\/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\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">error<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shaderSource<\/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\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">error<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">shader compiler error:<\/span><span style=\"color: #EBCB8B\">\\n<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">getShaderInfoLog<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shader<\/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>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shader<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u6240\u6709\u5173\u4e8egl\u7684\u65b9\u6cd5\u90fd\u662f\u901a\u8fc7WebGL API\u8c03\u7528\u7684\u3002gl.createShader\u5c31\u662f\u6211\u4eec\u63a5\u89e6\u5230\u7684\u7b2c\u4e00\u4e2aWebGL API\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u53ea\u9700\u77e5\u9053\u8fd9\u4e2acreateShader()\u51fd\u6570\u4f1a\u8fd4\u56de <strong>WebGLShader \u7740\u8272\u5668\u5bf9\u8c61<\/strong>\u3002\u6211\u4eec\u5728\u540e\u6587\u518d\u8be6\u7ec6\u8bf4\u660e\uff0c\u8fd9\u91cc\u5148\u5173\u6ce8shaderSource\u7a76\u7adf\u4f55\u53bb\u4f55\u4ece\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>gl.shaderSource:A string containing the GLSL source code to set.<\/li>\n<\/ul>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u6211\u4eec\u4e00\u8def\u8ffd\u8e2a\u7684GLSL\u6e90\u4ee3\u7801\u662f\u901a\u8fc7gl.shaderSource\u51fd\u6570\u89e3\u6790\u8fdb\u4e86WebGLShader\u4e2d\u3002<\/p>\n\n\n\n<p>\u7136\u540e\u901a\u8fc7gl.compileShader()\u51fd\u6570\u7f16\u8bd1WebGLShader\uff0c\u4f7f\u5176\u6210\u4e3a\u4e3a\u4e8c\u8fdb\u5236\u6570\u636e\uff0c\u7136\u540e\u5c31\u53ef\u4ee5\u88abWebGLProgram\u5bf9\u8c61\u6240\u4f7f\u7528\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u7b80\u5355\u5730\u8bf4\uff0cWebGLProgram\u662f\u4e00\u4e2a\u5305\u542b\u5df2\u7f16\u8bd1\u7684WebGL\u7740\u8272\u5668\u7684GLSL\u7a0b\u5e8f\uff0c\u81f3\u5c11\u9700\u8981\u5305\u542b\u4e00\u4e2a\u9876\u70b9\u7740\u8272\u5668\u548c\u4e00\u4e2a\u7247\u6bb5\u7740\u8272\u5668\u3002\u5728WebGL\u4e2d\uff0c\u4f1a\u521b\u5efa\u4e00\u4e2a\u6216\u591a\u4e2aWebGLProgram\u5bf9\u8c61\uff0c\u6bcf\u4e2a\u5bf9\u8c61\u5305\u542b\u4e00\u7ec4\u7279\u5b9a\u7684\u6e32\u67d3\u6307\u4ee4\u3002\u901a\u8fc7\u4f7f\u7528\u4e0d\u540c\u7684WebGLProgram\uff0c\u5c31\u53ef\u4ee5\u5b9e\u73b0\u5404\u79cd\u753b\u9762\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>if\u8bed\u53e5\u662f\u68c0\u67e5\u7740\u8272\u5668\u662f\u5426\u6210\u529f\u7f16\u8bd1\u7684\u90e8\u5206\u3002\u5982\u679c\u7f16\u8bd1\u5931\u8d25\uff0c\u5219\u6267\u884c\u62ec\u53f7\u5185\u7684\u4ee3\u7801\u3002\u6700\u540e\uff0c\u8fd4\u56de\u7f16\u8bd1\u540e\uff08\u6216\u5c1d\u8bd5\u7f16\u8bd1\u540e\uff09\u7684\u7740\u8272\u5668\u5bf9\u8c61shader\u3002<\/p>\n\n\n\n<p>\u81f3\u6b64\uff0c\u6211\u4eec\u5c31\u5b8c\u6210\u4e86\u5c06GLSL\u6587\u4ef6\u4ece\u786c\u76d8\u4e2d\u53d6\u51fa\u6700\u540e\u7f16\u8bd1\u8fdb\u7740\u8272\u5668\u5bf9\u8c61\u7684\u5de5\u4f5c\u3002<\/p>\n\n\n\n<p>\u4f46\u662f\u6e32\u67d3\u7684\u6d41\u7a0b\u8fd8\u6ca1\u6709\u7ed3\u675f\u3002\u56de\u5230Shadow\u5bf9\u8c61\u7684\u6784\u9020\u5904\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=\"\/\/ Shadow.js\nclass Shader {\n    constructor(gl, vsSrc, fsSrc, shaderLocations) {\n        this.gl = gl;\n        const vs = this.compileShader(vsSrc, gl.VERTEX_SHADER);\n        const fs = this.compileShader(fsSrc, gl.FRAGMENT_SHADER);\n\n        this.program = this.addShaderLocations({\n            glShaderProgram: this.linkShader(vs, fs),\n        }, shaderLocations);\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\">\/\/ Shadow.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">class<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">Shader<\/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\">constructor<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">vsSrc<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">fsSrc<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shaderLocations<\/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\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #81A1C1\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">vs<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">compileShader<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">vsSrc<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">VERTEX_SHADER<\/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\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">fs<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">compileShader<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">fsSrc<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">FRAGMENT_SHADER<\/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: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">program<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">addShaderLocations<\/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\">glShaderProgram<\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">linkShader<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">vs<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">fs<\/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 style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shaderLocations<\/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\">...<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u867d\u7136\u521a\u624d\u6211\u4eec\u53ea\u89e3\u8bf4\u4e86\u7247\u6bb5\u7740\u8272\u5668\u7684GLSL\u7f16\u8bd1\u6d41\u7a0b\uff0c\u4f46\u662f\u9876\u70b9\u7740\u8272\u5668\u4e5f\u662f\u76f8\u5f53\u7c7b\u4f3c\u7684\uff0c\u6545\u6b64\u7701\u7565\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u8fd9\u91cc\u6211\u4eec\u4ecb\u7ecdlinkShader()\u94fe\u63a5\u7740\u8272\u5668\u7684\u6d41\u7a0b\u3002\u4ee3\u7801\u5728\u6587\u5b57\u7684\u4e0b\u65b9\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u9996\u5148\u521b\u5efa\u4e00\u4e2a<strong>\u521b\u5efa\u7a0b\u5e8f<\/strong>\u547d\u540d\u4e3aWebGLProgram\u3002<\/li>\n\n\n\n<li>\u5c06\u7f16\u8bd1\u540e\u7684\u9876\u70b9\u7740\u8272\u5668\u548c\u7247\u6bb5\u7740\u8272\u5668vs\u548cfs\u6dfb\u52a0\u5230\u7a0b\u5e8f\u4e2d\uff0c\u8fd9\u4e00\u6b65\u53eb\u505a<strong>\u9644\u52a0\u7740\u8272\u5668<\/strong>\u3002\u5177\u4f53\u800c\u8a00\u662f\u4f7f\u7528gl.attachShader()\u5c06\u4ed6\u4eec\u9644\u52a0\u5230WebGLProgram\u4e0a\u3002<\/li>\n\n\n\n<li>\u4f7f\u7528gl.linkProgram()\u94fe\u63a5WebGLProgram\u3002\u8fd9\u4f1a\u751f\u6210\u4e00\u4e2a\u53ef\u6267\u884c\u7684\u7a0b\u5e8f\uff0c\u8be5\u7a0b\u5e8f\u7ed3\u5408\u4e86\u524d\u9762\u9644\u52a0\u7684\u7740\u8272\u5668\u3002\u8fd9\u4e00\u6b65\u53eb\u505a<strong>\u94fe\u63a5\u7a0b\u5e8f<\/strong>\u3002<\/li>\n\n\n\n<li>\u6700\u540e\u68c0\u67e5\u94fe\u63a5\u72b6\u6001\uff0c\u8fd4\u56deWebGL\u5bf9\u8c61\u3002<\/li>\n<\/ol>\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.js\nlinkShader(vs, fs) {\n    const gl = this.gl;\n    var prog = gl.createProgram();\n    gl.attachShader(prog, vs);\n    gl.attachShader(prog, fs);\n    gl.linkProgram(prog);\n\n    if (!gl.getProgramParameter(prog, gl.LINK_STATUS)) {\n        abort('shader linker error:\\n' + gl.getProgramInfoLog(prog));\n    }\n    return prog;\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.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">linkShader<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">vs<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">fs<\/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\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">var<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">prog<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">createProgram<\/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\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">attachShader<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">prog<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">vs<\/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\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">attachShader<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">prog<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">fs<\/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\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">linkProgram<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">prog<\/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: #81A1C1\">if<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #81A1C1\">!<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">getProgramParameter<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">prog<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">LINK_STATUS<\/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\">abort<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">shader linker error:<\/span><span style=\"color: #EBCB8B\">\\n<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">getProgramInfoLog<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">prog<\/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\">prog<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>WebGLProgram\u53ef\u4ee5\u88ab\u89c6\u4e3a\u7740\u8272\u5668\u7684\u5bb9\u5668\uff0c\u5b83\u5305\u542b\u4e86\u5c063D\u6570\u636e\u8f6c\u6362\u4e3a\u5c4f\u5e55\u4e0a\u76842D\u50cf\u7d20\u6240\u9700\u7684\u5168\u90e8\u4fe1\u606f\u548c\u6307\u4ee4\u3002<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5f97\u5230\u4e0e\u7740\u8272\u5668\u94fe\u63a5\u7684\u7a0b\u5e8fglShaderProgram\u540e\uff0c\u4f1a\u4e0eshaderLocations\u5bf9\u8c61\u4e00\u540c\u88ab\u8f7d\u5165\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u7b80\u5355\u5730\u8bf4shaderLocations\u5bf9\u8c61\u5305\u542b\u4e86\u4e24\u4e2a\u5c5e\u6027<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Attributes\u662f&#8221;\u4e2a\u4f53&#8221;\u7684\u6570\u636e\uff08\u6bd4\u5982\u6bcf\u4e2a\u9876\u70b9\u7684\u4fe1\u606f\uff09<\/li>\n\n\n\n<li>Uniforms\u662f&#8221;\u6574\u4f53&#8221;\u7684\u6570\u636e\uff08\u6bd4\u5982\u4e00\u4e2a\u706f\u5149\u7684\u4fe1\u606f\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u6846\u67b6\u5c06\u8f7d\u5165\u7684\u6d41\u7a0b\u6253\u5305\u8fdb\u4e86addShaderLocations()\u4e2d\u3002\u7b80\u5355\u5730\u8bf4\uff0c\u7ecf\u8fc7\u8fd9\u4e00\u6b65\u64cd\u4f5c\u4e4b\u540e\uff0c\u5f53\u4f60\u9700\u8981\u7ed9\u8fd9\u4e9buniform\u548cattribute\u8d4b\u503c\u65f6\uff0c\u5c31\u53ef\u4ee5\u76f4\u63a5\u901a\u8fc7\u5df2\u7ecf\u83b7\u53d6\u5230\u7684\u4f4d\u7f6e\u8fdb\u884c\u64cd\u4f5c\uff0c\u800c\u4e0d\u9700\u8981\u6bcf\u6b21\u90fd\u53bb\u67e5\u8be2\u4f4d\u7f6e\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=\"addShaderLocations(result, shaderLocations) {\n    const gl = this.gl;\n    result.uniforms = {};\n    result.attribs = {};\n\n    if (shaderLocations &amp;&amp; shaderLocations.uniforms &amp;&amp; shaderLocations.uniforms.length) {\n        for (let i = 0; i < shaderLocations.uniforms.length; ++i) {\n            result.uniforms = Object.assign(result.uniforms, {\n                [shaderLocations.uniforms[i]]: gl.getUniformLocation(result.glShaderProgram, shaderLocations.uniforms[i]),\n            });\n        }\n    }\n    if (shaderLocations &amp;&amp; shaderLocations.attribs &amp;&amp; shaderLocations.attribs.length) {\n        for (let i = 0; i < shaderLocations.attribs.length; ++i) {\n            result.attribs = Object.assign(result.attribs, {\n                [shaderLocations.attribs[i]]: gl.getAttribLocation(result.glShaderProgram, shaderLocations.attribs[i]),\n            });\n        }\n    }\n\n    return result;\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: #88C0D0\">addShaderLocations<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">result<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shaderLocations<\/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\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">result<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">uniforms<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{}<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">result<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">attribs<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{}<\/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\">if<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">shaderLocations<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&amp;&amp;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shaderLocations<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">uniforms<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&amp;&amp;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shaderLocations<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">uniforms<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9FF\">length) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #81A1C1\">for<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #81A1C1\">let<\/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: #D8DEE9\">shaderLocations<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">uniforms<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9FF\">length<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">++<\/span><span style=\"color: #D8DEE9\">i<\/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\">result<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">uniforms<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Object<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">assign<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">result<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">uniforms<\/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: #88C0D0\">[<\/span><span style=\"color: #D8DEE9\">shaderLocations<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">uniforms<\/span><span style=\"color: #88C0D0\">[<\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #88C0D0\">]]<\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">getUniformLocation<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">result<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">glShaderProgram<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shaderLocations<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">uniforms<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">i<\/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 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: #ECEFF4\">}<\/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\">shaderLocations<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&amp;&amp;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shaderLocations<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">attribs<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&amp;&amp;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shaderLocations<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">attribs<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9FF\">length) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #81A1C1\">for<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #81A1C1\">let<\/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: #D8DEE9\">shaderLocations<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">attribs<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9FF\">length<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">++<\/span><span style=\"color: #D8DEE9\">i<\/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\">result<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">attribs<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Object<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">assign<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">result<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">attribs<\/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: #88C0D0\">[<\/span><span style=\"color: #D8DEE9\">shaderLocations<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">attribs<\/span><span style=\"color: #88C0D0\">[<\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #88C0D0\">]]<\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">getAttribLocation<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">result<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">glShaderProgram<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shaderLocations<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">attribs<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">i<\/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 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: #ECEFF4\">}<\/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\">result<\/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>\u56de\u987e\u4e00\u4e0b\u76ee\u524d\u5df2\u7ecf\u5b8c\u6210\u7684\u5de5\u4f5c\uff1a\u6210\u529f\u6784\u5efa\u597d\u4e86\u4e00\u4e2a\u7f16\u8bd1\u540e\uff08\u6216\u5c1d\u8bd5\u7f16\u8bd1\u540e\uff09\u7684Shader\u7740\u8272\u5668\u5bf9\u8c61\u7ed9MeshRender\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=\"\/\/ MeshRender.js - construct()\nthis.shader = this.material.compile(gl);\" 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\">\/\/ MeshRender.js - construct()<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">shader<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">material<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">compile<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u81f3\u6b64\uff0cloadOBJ\u7684\u4efb\u52a1\u5df2\u7ecf\u5706\u6ee1\u5b8c\u6210\u3002\u5728engine.js\u4e2d\uff0c\u8fd9\u6837\u7684\u52a0\u8f7d\u8981\u505a\u4e09\u6b21\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=\"\/\/ loadOBJ(renderer, path, name, objMaterial, transform, meshID);\nloadOBJ(renderer, 'assets\/mary\/', 'Marry', 'PhongMaterial', obj1Transform);\nloadOBJ(renderer, 'assets\/mary\/', 'Marry', 'PhongMaterial', obj2Transform);\nloadOBJ(renderer, 'assets\/floor\/', 'floor', 'PhongMaterial', floorTransform);\" 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\">\/\/ loadOBJ(renderer, path, name, objMaterial, transform, meshID);<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">loadOBJ<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">renderer<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">assets\/mary\/<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">Marry<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">PhongMaterial<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">obj1Transform<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">loadOBJ<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">renderer<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">assets\/mary\/<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">Marry<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">PhongMaterial<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">obj2Transform<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">loadOBJ<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">renderer<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">assets\/floor\/<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">floor<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">PhongMaterial<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">floorTransform<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u63a5\u4e0b\u6765\u6765\u5230\u7a0b\u5f0f\u4e3b\u5faa\u73afmainLoop\u3002\u4e5f\u5373\uff0c\u4e00\u4e2a\u5faa\u73af\u8868\u793a\u4e00\u5e27\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=\"\/\/ engine.js\nloadOBJ(...);\n...\nfunction mainLoop() {...}\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\">\/\/ engine.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">loadOBJ<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">...<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">function<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">mainLoop<\/span><span style=\"color: #ECEFF4\">()<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{<\/span><span style=\"color: #81A1C1\">...<\/span><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\">\u7a0b\u5e8f\u4e3b\u5faa\u73af &#8212; mainLoop()<\/h3>\n\n\n\n<p>\u5b9e\u9645\u4e0a\uff0c\u6267\u884cmainLoop\uff0c\u8be5\u51fd\u6570\u4f1a\u518d\u6b21\u8c03\u7528\u81ea\u5df1\uff0c\u5f62\u6210\u4e00\u4e2a\u65e0\u9650\u5faa\u73af\u3002\u8fd9\u5c31\u662f\u6240\u8c13\u7684\u6e38\u620f\u5faa\u73af\u6216\u52a8\u753b\u5faa\u73af\u7684\u57fa\u7840\u673a\u5236\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=\"\/\/ engine.js\nfunction mainLoop() {\n    cameraControls.update();\n    renderer.render();\n    requestAnimationFrame(mainLoop);\n};\nrequestAnimationFrame(mainLoop);\" 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\">\/\/ engine.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">function<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">mainLoop<\/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: #D8DEE9\">cameraControls<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">update<\/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\">renderer<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">render<\/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\">requestAnimationFrame<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">mainLoop<\/span><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 style=\"color: #88C0D0\">requestAnimationFrame<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">mainLoop<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>cameraControls.update();\u5728\u66f4\u65b0\u76f8\u673a\u7684\u4f4d\u7f6e\u6216\u65b9\u5411\uff0c\u4f8b\u5982\u54cd\u5e94\u7528\u6237\u7684\u8f93\u5165\u3002<\/p>\n\n\n\n<p>renderer.render();\u573a\u666f\u88ab\u6e32\u67d3\u6216\u7ed8\u5236\u5230\u5c4f\u5e55\u4e0a\u3002\u5177\u4f53\u7684\u6e32\u67d3\u5185\u5bb9\u548c\u65b9\u5f0f\u53d6\u51b3\u4e8erenderer\u5bf9\u8c61\u7684\u5b9e\u73b0\u3002<\/p>\n\n\n\n<p>requestAnimationFrame\u7684\u597d\u5904\u662f\u5b83\u4f1a\u5c3d\u91cf\u4e0e\u5c4f\u5e55\u7684\u5237\u65b0\u7387\u540c\u6b65\uff0c\u8fd9\u6837\u53ef\u4ee5\u63d0\u4f9b\u66f4\u6d41\u7545\u7684\u52a8\u753b\u548c\u66f4\u9ad8\u7684\u6027\u80fd\uff0c\u56e0\u4e3a\u5b83\u4e0d\u4f1a\u5728\u5c4f\u5e55\u5237\u65b0\u4e4b\u95f4\u65e0\u8c13\u5730\u6267\u884c\u4ee3\u7801\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5173\u4e8erequestAnimationFrame()\u51fd\u6570\u7684\u8be6\u7ec6\u4fe1\u606f\u53ef\u4ee5\u53c2\u8003\u4ee5\u4e0b\u6587\u7ae0\uff1a https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/API\/window\/requestAnimationFrame<\/p>\n<\/blockquote>\n\n\n\n<p>\u63a5\u4e0b\u6765\u91cd\u70b9\u5173\u5fc3render()\u51fd\u6570\u7684\u8fd0\u4f5c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">render()\u6e32\u67d3\u51fd\u6570<\/h3>\n\n\n\n<p>\u8fd9\u662f\u4e00\u4e2a\u5178\u578b\u7684\u5149\u6e90\u6e32\u67d3\u3001\u9634\u5f71\u6e32\u67d3\u548c\u6700\u7ec8\u6444\u50cf\u673a\u89c6\u89d2\u6e32\u67d3\u7684\u6d41\u7a0b\u3002\u6b64\u5904\u5c31\u4e0d\u8be6\u7ec6\u5c55\u5f00\u4e86\uff0c\u653e\u5230\u540e\u9762\u7684\u591a\u5149\u6e90\u90e8\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=\"\/\/ WebGLRenderer.js - render()\nconst gl = this.gl;\n\ngl.clearColor(0.0, 0.0, 0.0, 1.0); \/\/ shadowmap\u9ed8\u8ba4\u767d\u8272\uff08\u65e0\u906e\u6321\uff09\uff0c\u89e3\u51b3\u5730\u9762\u8fb9\u7f18\u4ea7\u751f\u9634\u5f71\u7684\u95ee\u9898\uff08\u56e0\u4e3a\u5730\u9762\u5916\u91c7\u6837\u4e0d\u5230\uff0c\u9ed8\u8ba4\u503c\u4e3a0\u4f1a\u8ba4\u4e3a\u662f\u88ab\u906e\u6321\uff09\ngl.clearDepth(1.0);\/\/ Clear everything\ngl.enable(gl.DEPTH_TEST); \/\/ Enable depth testing\ngl.depthFunc(gl.LEQUAL); \/\/ Near things obscure far things\n\nconsole.assert(this.lights.length != 0, &quot;No light&quot;);\nconsole.assert(this.lights.length == 1, &quot;Multiple lights&quot;);\n\nfor (let l = 0; l < this.lights.length; l++) {\n    gl.bindFramebuffer(gl.FRAMEBUFFER, this.lights[l].entity.fbo);\n    gl.clear(gl.DEPTH_BUFFER_BIT);\n    \/\/ Draw light\n    \/\/ TODO: Support all kinds of transform\n    this.lights[l].meshRender.mesh.transform.translate = this.lights[l].entity.lightPos;\n    this.lights[l].meshRender.draw(this.camera);\n\n    \/\/ Shadow pass\n    if (this.lights[l].entity.hasShadowMap == true) {\n        for (let i = 0; i < this.shadowMeshes.length; i++) {\n            this.shadowMeshes[i].draw(this.camera);\n        }\n    }\n}\n\/\/ Camera pass\nfor (let i = 0; i < this.meshes.length; i++) {\n    this.gl.useProgram(this.meshes[i].shader.program.glShaderProgram);\n    this.gl.uniform3fv(this.meshes[i].shader.program.uniforms.uLightPos, this.lights[0].entity.lightPos);\n    this.meshes[i].draw(this.camera);\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\">\/\/ WebGLRenderer.js - render()<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">clearColor<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">0.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ shadowmap\u9ed8\u8ba4\u767d\u8272\uff08\u65e0\u906e\u6321\uff09\uff0c\u89e3\u51b3\u5730\u9762\u8fb9\u7f18\u4ea7\u751f\u9634\u5f71\u7684\u95ee\u9898\uff08\u56e0\u4e3a\u5730\u9762\u5916\u91c7\u6837\u4e0d\u5230\uff0c\u9ed8\u8ba4\u503c\u4e3a0\u4f1a\u8ba4\u4e3a\u662f\u88ab\u906e\u6321\uff09<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">clearDepth<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #616E88\">\/\/ Clear everything<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">enable<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">DEPTH_TEST<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ Enable depth testing<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">depthFunc<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">LEQUAL<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ Near things obscure far things<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">assert<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">lights<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9FF\">length <\/span><span style=\"color: #81A1C1\">!=<\/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: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">No light<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">assert<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">lights<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9FF\">length <\/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: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Multiple lights<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">for<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #81A1C1\">let<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">l<\/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\">l<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">lights<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9FF\">length<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">l<\/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\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">bindFramebuffer<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">FRAMEBUFFER<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">lights<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">l<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">entity<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">fbo<\/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\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">clear<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">DEPTH_BUFFER_BIT<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ Draw light<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ TODO: Support all kinds of transform<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">lights<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">l<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">meshRender<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">mesh<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">transform<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">translate<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">lights<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">l<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">entity<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">lightPos<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">lights<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">l<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">meshRender<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">draw<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">camera<\/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\">\/\/ Shadow pass<\/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: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">lights<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">l<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">entity<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">hasShadowMap<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">==<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">true<\/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\">for<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #81A1C1\">let<\/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: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">shadowMeshes<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9FF\">length<\/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: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">shadowMeshes<\/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: #88C0D0\">draw<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">camera<\/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: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ Camera pass<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">for<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #81A1C1\">let<\/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: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">meshes<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9FF\">length<\/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: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">useProgram<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">meshes<\/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\">shader<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">program<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">glShaderProgram<\/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\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">uniform3fv<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">meshes<\/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\">shader<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">program<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">uniforms<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">uLightPos<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">lights<\/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\">entity<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">lightPos<\/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\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">meshes<\/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: #88C0D0\">draw<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">camera<\/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<h2 class=\"wp-block-heading\">GLSL\u5feb\u901f\u5165\u95e8 &#8212; \u5206\u6790\u7247\u6bb5\u7740\u8272\u5668FragmentShader.glsl<\/h2>\n\n\n\n<p>\u4e0a\u6587\u6211\u4eec\u8ba8\u8bba\u4e86\u5982\u4f55\u8f7d\u5165GLSL\uff0c\u8fd9\u4e00\u7ae0\u8282\u4ecb\u7ecdGLSL\u7684\u6982\u5ff5\u4e0e\u5b9e\u9645\u7528\u6cd5\u3002<\/p>\n\n\n\n<p>\u5728WebGL\u4e2d\u8fdb\u884c\u6e32\u67d3\u65f6\uff0c\u6211\u4eec\u9700\u8981\u81f3\u5c11\u4e00\u4e2a <strong>\u9876\u70b9\u7740\u8272\u5668\uff08Vertex Shader\uff09<\/strong> \u548c\u4e00\u4e2a <strong>\u7247\u6bb5\u7740\u8272\u5668\uff08Fragment Shader\uff09<\/strong> \u624d\u80fd\u7ed8\u5236\u51fa\u4e00\u5e45\u753b\u9762\u3002\u4e0a\u4e00\u8282\u6211\u4eec\u4ee5\u7247\u6bb5\u7740\u8272\u5668\u4e3a\u4f8b\uff0c\u4ecb\u7ecd\u4e86\u6846\u67b6\u662f\u600e\u4e48\u5c06GLSL\u6587\u4ef6\u4ece\u786c\u76d8\u8bfb\u53d6\u8fdbrenderer\u7684\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u4e5f\u4ee5Flagment Shader\u7247\u6bb5\u7740\u8272\u5668\u4e3a\u4f8b\u5b50\uff08\u5373phongFragment.glsl\uff09\uff0c\u4ecb\u7ecd\u7f16\u5199GLSL\u7684\u6d41\u7a0b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">FragmentShader.glsl\u6709\u4ec0\u4e48\u7528\uff1f<\/h3>\n\n\n\n<p>Fragment Shader\u7684\u4f5c\u7528\u662f\u5728\u5149\u6805\u5316\u7684\u65f6\u5019\u4e3a\u5f53\u524d\u50cf\u7d20\u6e32\u67d3\u6b63\u786e\u7684\u989c\u8272\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2aFragment Shader\u7684\u6700\u7b80\u5355\u5f62\u5f0f\uff0c\u5176\u5305\u542b\u4e00\u4e2amain()\u51fd\u6570\uff0c\u5728\u51fd\u6570\u5176\u4e2d\u6307\u5b9a\u4e86\u5f53\u524d\u50cf\u7d20\u7684\u989c\u8272gl_FragColor\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 main(void){\n    ...\n    gl_FragColor = vec4(Color, 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: #81A1C1\">void<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">main<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">void<\/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\">gl_FragColor<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">vec4<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">Color<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/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\">Fragment Shader\u63a5\u53d7\u4ec0\u4e48\u6570\u636e\uff1f<\/h3>\n\n\n\n<p>Fragment Shader\u9700\u8981\u77e5\u9053\u6570\u636e\uff0c\u6570\u636e\u662f\u7531\u4ee5\u4e0b\u4e09\u79cd\u4e3b\u8981\u65b9\u5f0f\u63d0\u4f9b\u7684\uff0c\u5177\u4f53\u7684\u7528\u6cd5\u53ef\u4ee5\u53c2\u8003 <strong>\u9644\u5f551.6<\/strong> \uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Uniforms (\u5168\u5c40\u53d8\u91cf)<\/strong>: \u8fd9\u4e9b\u662f\u5728\u5355\u4e2a\u7ed8\u5236\u8c03\u7528\u4e2d\u5bf9\u6240\u6709\u9876\u70b9\u548c\u7247\u6bb5\u90fd\u4fdd\u6301\u4e0d\u53d8\u7684\u503c\u3002\u5e38\u89c1\u7684\u4f8b\u5b50\u5305\u62ec\u53d8\u6362\u77e9\u9635\uff08\u5e73\u79fb\u65cb\u8f6c\u7b49\u64cd\u4f5c\uff09\u3001\u5149\u6e90\u53c2\u6570\u548c\u6750\u8d28\u5c5e\u6027\u3002\u7531\u4e8e\u5b83\u4eec\u5728\u7ed8\u5236\u8c03\u7528\u4e2d\u662f\u6052\u5b9a\u7684\uff0c\u6240\u4ee5\u79f0\u4e3a\u201cuniform\u201d\u3002<\/li>\n\n\n\n<li><strong>Textures (\u7eb9\u7406)<\/strong>: \u7eb9\u7406\u662f\u56fe\u50cf\u6570\u636e\u6570\u7ec4\uff0c\u5b83\u4eec\u53ef\u4ee5\u88ab\u7247\u6bb5\u7740\u8272\u5668\u91c7\u6837\u6765\u4e3a\u6bcf\u4e2a\u7247\u6bb5\u83b7\u5f97\u989c\u8272\u3001\u6cd5\u7ebf\u6216\u5176\u4ed6\u7c7b\u578b\u7684\u4fe1\u606f\u3002<\/li>\n\n\n\n<li><strong>Varyings (\u53ef\u53d8\u91cf)<\/strong>: \u8fd9\u4e9b\u662f\u9876\u70b9\u7740\u8272\u5668\u8f93\u51fa\u7684\u503c\uff0c\u5b83\u4eec\u5728\u56fe\u5f62\u57fa\u5143\uff08\u5982\u4e09\u89d2\u5f62\uff09\u7684\u9876\u70b9\u4e4b\u95f4\u63d2\u503c\uff0c\u5e76\u4f20\u9012\u7ed9\u7247\u6bb5\u7740\u8272\u5668\u3002\u8fd9\u5141\u8bb8\u6211\u4eec\u5728\u9876\u70b9\u7740\u8272\u5668\u4e2d\u8ba1\u7b97\u503c\uff08\u5982\u53d8\u6362\u540e\u7684\u4f4d\u7f6e\u6216\u9876\u70b9\u989c\u8272\uff09\uff0c\u5e76\u5728\u7247\u6bb5\u4e4b\u95f4\u8fdb\u884c\u63d2\u503c\uff0c\u4ee5\u4fbf\u5728\u7247\u6bb5\u7740\u8272\u5668\u4e2d\u4f7f\u7528\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u9879\u76ee\u4e2d\u7528\u4e86Uniforms\u548cVaryings\u4e24\u79cd\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">GLSL\u57fa\u672c\u8bed\u6cd5<\/h3>\n\n\n\n<p>\u8fd9\u91cc\u4e0d\u4f1a\u628a\u57fa\u672c\u7684\u7528\u6cd5\u8fc7\u4e00\u7bc7\uff0c\u56e0\u4e3a\u90a3\u6837\u592a\u65e0\u804a\u4e86\u3002\u6211\u4eec\u76f4\u63a5\u770b\u9879\u76ee\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=\"\/\/ phongFragment.glsl - PCF pass\nvoid main(void) {\n    \/\/ \u58f0\u660e\u53d8\u91cf\n    float visibility;     \/\/ \u53ef\u89c1\u6027\uff08\u7528\u4e8e\u9634\u5f71\uff09\n    vec3 shadingPoint;     \/\/ \u4ece\u5149\u6e90\u5904\u7684\u89c6\u70b9\u5750\u6807\n    vec3 phongColor;      \/\/ \u8ba1\u7b97\u51fa\u7684Phong\u5149\u7167\u989c\u8272\n\n    \/\/ \u5c06vPositionFromLight\u7684\u5750\u6807\u503c\u5f52\u4e00\u5316\u5230[0,1]\u8303\u56f4\u5185\n    shadingPoint = vPositionFromLight.xyz \/ vPositionFromLight.w;\n    shadingPoint = shadingPoint * 0.5 + 0.5; \/\/ \u8fdb\u884c\u5750\u6807\u8f6c\u6362\uff0c\u4f7f\u5176\u5728[0,1]\u8303\u56f4\u5185\n\n    \/\/ \u8ba1\u7b97\u53ef\u89c1\u6027\uff08\u9634\u5f71\uff09\u3002\n    visibility = PCF(uShadowMap, vec4(shadingPoint, 1.0)); \/\/ \u4f7f\u7528PCF\uff08Percentage Closer Filtering\uff09\u6280\u672f\n\n    \/\/ \u4f7f\u7528blinnPhong()\u51fd\u6570\u8ba1\u7b97Phong\u5149\u7167\u989c\u8272\n    phongColor = blinnPhong();\n\n    \/\/ \u8ba1\u7b97\u6700\u7ec8\u7684\u7247\u6bb5\u989c\u8272\uff0c\u5c06Phong\u5149\u7167\u989c\u8272\u4e0e\u53ef\u89c1\u6027\u76f8\u4e58\uff0c\u5f97\u5230\u8003\u8651\u9634\u5f71\u7684\u7247\u6bb5\u989c\u8272\n    gl_FragColor = vec4(phongColor * visibility, 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\">\/\/ phongFragment.glsl - PCF pass<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">void<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">main<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">void<\/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\">\/\/ \u58f0\u660e\u53d8\u91cf<\/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\">visibility<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\">     <\/span><span style=\"color: #616E88\">\/\/ \u53ef\u89c1\u6027\uff08\u7528\u4e8e\u9634\u5f71\uff09<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">vec3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\">     <\/span><span style=\"color: #616E88\">\/\/ \u4ece\u5149\u6e90\u5904\u7684\u89c6\u70b9\u5750\u6807<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">vec3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">phongColor<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\">      <\/span><span style=\"color: #616E88\">\/\/ \u8ba1\u7b97\u51fa\u7684Phong\u5149\u7167\u989c\u8272<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ \u5c06vPositionFromLight\u7684\u5750\u6807\u503c\u5f52\u4e00\u5316\u5230[0,1]\u8303\u56f4\u5185<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">vPositionFromLight<\/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\">vPositionFromLight<\/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\">shadingPoint<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadingPoint<\/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 style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.5<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ \u8fdb\u884c\u5750\u6807\u8f6c\u6362\uff0c\u4f7f\u5176\u5728[0,1]\u8303\u56f4\u5185<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ \u8ba1\u7b97\u53ef\u89c1\u6027\uff08\u9634\u5f71\uff09\u3002<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">visibility<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PCF<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">uShadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">vec4<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #D8DEE9FF\">))<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ \u4f7f\u7528PCF\uff08Percentage Closer Filtering\uff09\u6280\u672f<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ \u4f7f\u7528blinnPhong()\u51fd\u6570\u8ba1\u7b97Phong\u5149\u7167\u989c\u8272<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">phongColor<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">blinnPhong<\/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\">\/\/ \u8ba1\u7b97\u6700\u7ec8\u7684\u7247\u6bb5\u989c\u8272\uff0c\u5c06Phong\u5149\u7167\u989c\u8272\u4e0e\u53ef\u89c1\u6027\u76f8\u4e58\uff0c\u5f97\u5230\u8003\u8651\u9634\u5f71\u7684\u7247\u6bb5\u989c\u8272<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">gl_FragColor<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">vec4<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">phongColor<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">visibility<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/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>\u548cc\u8bed\u8a00\u4e00\u6837\uff0cglsl\u662f\u5f3a\u7c7b\u578b\u8bed\u8a00\uff0c\u4f60\u4e0d\u80fd\u8fd9\u6837\u8d4b\u503c\uff1afloat visibility = 1;\uff0c\u56e0\u4e3a1\u662fint\u7c7b\u578b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u77e2\u91cf\u6216\u77e9\u9635<\/h3>\n\n\n\n<p>\u53e6\u5916\uff0cglsl\u8fd8\u5185\u7f6e\u4e86\u5f88\u591a\u7279\u522b\u7684\u7c7b\u578b\uff0c\u6bd4\u5982\u6d6e\u70b9\u7c7b\u578b\u5411\u91cfvec2, vec3\u548c vec4\uff0c\u77e9\u9635\u7c7b\u578bmat2, mat3 \u548c mat4\u3002<\/p>\n\n\n\n<p>\u4e0a\u9762\u8fd9\u4e9b\u6570\u636e\u7684\u8bbf\u95ee\u65b9\u5f0f\u4e5f\u6bd4\u8f83\u6709\u610f\u601d\uff0c<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>.xyzw\uff1a\u901a\u5e38\u7528\u4e8e\u8868\u793a\u4e09\u7ef4\u6216\u56db\u7ef4\u7a7a\u95f4\u4e2d\u7684\u70b9\u6216\u5411\u91cf\u3002<\/li>\n\n\n\n<li>.rgba\uff1a\u5f53\u5411\u91cf\u8868\u793a\u989c\u8272\u65f6\u4f7f\u7528\uff0c\u5176\u4e2dr\u4ee3\u8868\u7ea2\u8272\uff0cg\u4ee3\u8868\u7eff\u8272\uff0cb\u4ee3\u8868\u84dd\u8272\uff0ca\u4ee3\u8868\u900f\u660e\u5ea6\u3002<\/li>\n\n\n\n<li>.stpq\uff1a\u5f53\u5411\u91cf\u7528\u4f5c\u7eb9\u7406\u5750\u6807\u65f6\u4f7f\u7528\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u56e0\u6b64\uff0c<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>v.x \u4e0e v[0] \u4e0e v.r \u4e0e v.s \u90fd\u8868\u793a\u8be5\u5411\u91cf\u7684\u7b2c\u4e00\u4e2a\u5206\u91cf\u3002<\/li>\n\n\n\n<li>v.y \u4e0e v[1] \u4e0e v.g \u4e0e v.t \u90fd\u8868\u793a\u8be5\u5411\u91cf\u7684\u7b2c\u4e8c\u4e2a\u5206\u91cf\u3002<\/li>\n\n\n\n<li>\u5bf9\u4e8evec3\u548cvec4\uff0cv.z \u4e0e v[2] \u4e0e v.b \u4e0e v.p \u90fd\u8868\u793a\u8be5\u5411\u91cf\u7684\u7b2c\u4e09\u4e2a\u5206\u91cf\u3002<\/li>\n\n\n\n<li>\u5bf9\u4e8evec4\uff0cv.w \u4e0e v[3] \u4e0e v.a \u4e0e v.q \u90fd\u8868\u793a\u8be5\u5411\u91cf\u7684\u7b2c\u56db\u4e2a\u5206\u91cf\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4f60\u751a\u81f3\u53ef\u4ee5\u4f7f\u7528\u4e00\u79cd\u53eb\u201c\u5206\u91cf\u91cd\u7ec4\u201d\u6216\u201c\u5206\u91cf\u9009\u62e9\u201d\u7684\u65b9\u5f0f\u8bbf\u95ee\u8fd9\u4e9b\u7c7b\u578b\u7684\u6570\u636e\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u91cd\u590d\u67d0\u4e2a\u5206\u91cf<\/strong>:<\/li>\n\n\n\n<li>v.yyyy \u4f1a\u5f97\u5230\u4e00\u4e2a\u65b0\u7684vec4\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5206\u91cf\u90fd\u662f\u539f\u59cbv\u7684y\u5206\u91cf\u3002\u8fd9\u4e0evec4(v.y, v.y, v.y, v.y)\u7684\u6548\u679c\u76f8\u540c\u3002<\/li>\n\n\n\n<li><strong>\u4ea4\u6362\u5206\u91cf<\/strong>:<\/li>\n\n\n\n<li>v.bgra \u4f1a\u5f97\u5230\u4e00\u4e2a\u65b0\u7684vec4\uff0c\u5176\u4e2d\u7684\u5206\u91cf\u6309\u7167b, g, r, a\u7684\u987a\u5e8f\u4ecev\u4e2d\u9009\u53d6\u3002\u8fd9\u4e0evec4(v.b, v.g, v.r, v.a)\u7684\u6548\u679c\u76f8\u540c\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u5f53\u6784\u9020\u4e00\u4e2a\u77e2\u91cf\u6216\u77e9\u9635\u65f6\u53ef\u4ee5\u4e00\u6b21\u63d0\u4f9b\u591a\u4e2a\u5206\u91cf\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>vec4(v.rgb, 1)\u4e0evec4(v.r, v.g, v.b, 1)\u662f\u7b49\u4ef7\u7684<\/li>\n\n\n\n<li>vec4(1) \u4e0evec(1, 1, 1, 1)\u4e5f\u662f\u7b49\u4ef7\u7684<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u53c2\u8003\u8d44\u6599\uff1aGLSL\u8bed\u8a00\u89c4\u8303 https:\/\/www.khronos.org\/files\/opengles_shading_language.pdf<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u77e9\u9635\u5b58\u50a8\u65b9\u5f0f<\/h3>\n\n\n\n<p>\u8fd9\u4e9b\u63d0\u793a\u90fd\u53ef\u4ee5\u5728glmatrix\u7684Doc\u4e2d\u627e\u5230\uff1ahttps:\/\/glmatrix.net\/docs\/mat4.js.html\u3002\u53e6\u5916\uff0c\u5982\u679c\u770b\u5f97\u4ed4\u7ec6\u6211\u4eec\u4f1a\u53d1\u73b0\u8fd9\u4e2a\u7ec4\u4ef6\u4e5f\u90fd\u662f\u7528<strong>\u5217\u4f18\u5148\u5b58\u50a8<\/strong>\u77e9\u9635\u7684\uff0cWebGL\u548cGLSL\u4e2d\u4e5f\u662f\u5217\u6709\u9650\u5b58\u50a8\u3002\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<p>\u5c06\u4e00\u4e2a\u7269\u4f53\u79fb\u52a8\u5230\u4e00\u4e2a\u65b0\u7684\u4f4d\u7f6e\uff0c\u53ef\u4ee5\u7528mat4.translate()\u51fd\u6570\uff0c\u5e76\u4e14\u8fd9\u4e2a\u51fd\u6570\u63a5\u53d7\u4e09\u4e2a\u53c2\u6570\u5206\u522b\u662f\uff1a\u4e00\u4e2a4&#215;4\u7684\u8f93\u51faout\uff0c\u4f20\u5165\u76844&#215;4\u77e9\u9635a\uff0c\u4e00\u4e2a1&#215;3\u7684\u4f4d\u79fb\u77e9\u9635v\u3002<\/p>\n\n\n\n<p>\u6700\u7b80\u5355\u7684\u77e9\u9635\u4e58\u6cd5\u53ef\u4ee5\u4f7f\u7528mat4.multiply\uff0c\u7f29\u653e\u77e9\u9635\u4f7f\u7528mat4.scale()\uff0c\u8c03\u6574\u201c\u770b\u5411\u201d\u7684\u65b9\u5411\u4f7f\u7528mat4.lookAt()\uff0c\u6b63\u4ea4\u6295\u5f71\u77e9\u9635mat4.ortho()\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9e\u73b0\u5149\u6e90\u76f8\u673a\u7684\u77e9\u9635\u53d8\u6362<\/h2>\n\n\n\n<p>\u5982\u679c\u6211\u4eec\u7528\u900f\u89c6\u6295\u5f71\u64cd\u4f5c\uff0c\u5219\u662f\u8fd9\u91cc\u9700\u8981\u5c06\u4e0b\u9762Frustum\u653e\u7f29\u5230\u4e00\u4e2a\u6b63\u4ea4\u89c6\u89d2\u7684\u7a7a\u95f4\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-208.png\" alt=\"\" class=\"wp-image-1332 lazyload\"\/><noscript><img decoding=\"async\" width=\"1162\" height=\"946\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-208.png\" alt=\"\" class=\"wp-image-1332 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-208.png 1162w, https:\/\/remoooo.com\/wp-content\/uploads\/image-208-300x244.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-208-1024x834.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-208-768x625.png 768w\" sizes=\"(max-width: 1162px) 100vw, 1162px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u4f46\u662f\u5982\u679c\u6211\u4eec\u4f7f\u7528\u6b63\u4ea4\u6295\u5f71\uff0c\u90a3\u4e48\u5c31\u53ef\u4ee5\u4fdd\u6301\u6df1\u5ea6\u503c\u7684\u7ebf\u6027\uff0c\u4f7f\u5f97 Shadow Map \u7684\u7cbe\u5ea6\u5c3d\u53ef\u80fd\u5927\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-203.png\" alt=\"\" class=\"wp-image-1327 lazyload\"\/><noscript><img decoding=\"async\" width=\"1110\" height=\"724\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-203.png\" alt=\"\" class=\"wp-image-1327 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-203.png 1110w, https:\/\/remoooo.com\/wp-content\/uploads\/image-203-300x196.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-203-1024x668.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-203-768x501.png 768w\" sizes=\"(max-width: 1110px) 100vw, 1110px\" \/><\/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=\"\/\/ DirectionalLight.js - CalcLightMVP()\nlet lightMVP = mat4.create();\nlet modelMatrix = mat4.create();\nlet viewMatrix = mat4.create();\nlet projectionMatrix = mat4.create();\n\n\/\/ Model transform\nmat4.translate(modelMatrix, modelMatrix, translate);\nmat4.scale(modelMatrix, modelMatrix, scale);\n\n\/\/ View transform\nmat4.lookAt(viewMatrix, this.lightPos, this.focalPoint, this.lightUp);\n\n\/\/ Projection transform\nlet left = -100.0, right = -left, bottom = -100.0, top = -bottom, \n    near = 0.1, far = 1024.0;  \n    \/\/ Set these values as per your requirement\nmat4.ortho(projectionMatrix, left, right, bottom, top, near, far);\n\n\nmat4.multiply(lightMVP, projectionMatrix, viewMatrix);\nmat4.multiply(lightMVP, lightMVP, modelMatrix);\n\nreturn lightMVP;\" 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\">\/\/ DirectionalLight.js - CalcLightMVP()<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">let<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lightMVP<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">mat4<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">create<\/span><span style=\"color: #D8DEE9FF\">()<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">let<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">modelMatrix<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">mat4<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">create<\/span><span style=\"color: #D8DEE9FF\">()<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">let<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">viewMatrix<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">mat4<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">create<\/span><span style=\"color: #D8DEE9FF\">()<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">let<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">projectionMatrix<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">mat4<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">create<\/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\">\/\/ Model transform<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">mat4<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">translate<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">modelMatrix<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">modelMatrix<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">translate<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">mat4<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">scale<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">modelMatrix<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">modelMatrix<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">scale<\/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\">\/\/ View transform<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">mat4<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">lookAt<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">viewMatrix<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">lightPos<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">focalPoint<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">this<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">lightUp<\/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\">\/\/ Projection transform<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">let<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">left<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #B48EAD\">100.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">right<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">left<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bottom<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #B48EAD\">100.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">top<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">bottom<\/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\">near<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.1<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">far<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1024.0<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\">  <\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ Set these values as per your requirement<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">mat4<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">ortho<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">projectionMatrix<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">left<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">right<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bottom<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">top<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">near<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">far<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">mat4<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">multiply<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">lightMVP<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">projectionMatrix<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">viewMatrix<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">mat4<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">multiply<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">lightMVP<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lightMVP<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">modelMatrix<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lightMVP<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">2-Pass Shadow \u7b97\u6cd5<\/h2>\n\n\n\n<p>\u5728\u5b9e\u73b0\u4e24\u8d9f\u7b97\u6cd5\u4e4b\u524d\uff0c\u5148\u770b\u770bmain()\u51fd\u6570\u662f\u600e\u4e48\u8c03\u7528\u7684\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=\"\/\/ phongFragment.glsl\nvoid main(void){  \n  vec3 shadingPoint = vPositionFromLight.xyz \/ vPositionFromLight.w;\n  shadingPoint = shadingPoint*0.5+0.5;\/\/ \u5f52\u4e00\u5316\u81f3 [0,1]\n\n  float visibility = 1.0;\n  visibility = useShadowMap(uShadowMap, vec4(shadingPoint, 1.0));\n\n  vec3 phongColor = blinnPhong();\n\n  gl_FragColor=vec4(phongColor * visibility,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\">\/\/ phongFragment.glsl<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">void<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">main<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">void<\/span><span style=\"color: #D8DEE9FF\">)<\/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\">vec3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">vPositionFromLight<\/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\">vPositionFromLight<\/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\">shadingPoint<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #B48EAD\">0.5<\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #B48EAD\">0.5<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #616E88\">\/\/ \u5f52\u4e00\u5316\u81f3 [0,1]<\/span><\/span>\n<span class=\"line\"><\/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\">visibility<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">visibility<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">useShadowMap<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">uShadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">vec4<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/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\">vec3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">phongColor<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">blinnPhong<\/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\">gl_FragColor<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #88C0D0\">vec4<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">phongColor<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">visibility<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #B48EAD\">1.0<\/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>\u90a3\u4e48\u95ee\u9898\u6765\u4e86\uff0cvPositionFromLight\u662f\u600e\u4e48\u6765\u7684\uff1f\u662f\u5728\u9876\u70b9\u7740\u8272\u5668\u4e2d\u7b97\u51fa\u6765\u7684\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7edf\u4e00\u7a7a\u95f4\u5750\u6807<\/h3>\n\n\n\n<p>\u8bf4\u4eba\u8bdd\u5c31\u662f\uff0c\u5c06\u573a\u666f\u7684\u9876\u70b9\u7684\u4e16\u754c\u5750\u6807\u8f6c\u6362\u4e3a\u5149\u76f8\u673a\u7684NDC\u7a7a\u95f4\u5bf9\u5e94\u7684\u65b0\u5750\u6807\u3002\u76ee\u7684\u4e3a\u4e86\u6e32\u67d3\u4e3b\u76f8\u673a\u7684\u67d0\u4e2aShading Point\u7684\u9634\u5f71\u65f6\uff0c\u53ef\u4ee5\u5728\u5149\u6e90\u76f8\u673a\u7684\u7a7a\u95f4\u4e2d\u53d6\u51fa\u6240\u9700\u7684\u6df1\u5ea6\u503c\u3002<\/p>\n\n\n\n<p>vPositionFromLight\u8868\u793a\u4ece\u5149\u6e90\u7684\u89c6\u89d2\u770b\u5230\u7684\u4e00\u4e2a\u70b9\u7684\u9f50\u6b21\u5750\u6807\u3002\u8fd9\u4e2a\u5750\u6807\u5728\u5149\u6e90\u7684\u6b63\u4ea4\u7a7a\u95f4\u4e2d\uff0c\u5176\u8303\u56f4\u662f[-w, w]\u3002\u4ed6\u662f\u7531phongVertex.glsl\u8ba1\u7b97\u51fa\u6765\u7684\u3002phongVertex.glsl\u7684\u4f5c\u7528\u662f\u5904\u7406\u8f93\u5165\u7684\u9876\u70b9\u6570\u636e\uff0c\u901a\u8fc7\u4e0a\u4e00\u7ae0\u8ba1\u7b97\u7684MVP\u77e9\u9635\u5c06\u4e00\u7cfb\u5217\u9876\u70b9\u8f6c\u5316\u4e3a\u88c1\u526a\u7a7a\u95f4\u5750\u6807\u3002\u5c06vPositionFromLight\u8f6c\u6362\u5230NDC\u6807\u51c6\u7a7a\u95f4\u5f97\u5230shadingPoint\uff0c\u5c31\u53ef\u4ee5\u5c06shadingPoint\u91cc\u9762\u8fd9\u4e9b\u9700\u8981\u505a\u9634\u5f71\u5224\u65ad\u7684Shading Point\u4f20\u5165useShadowMap\u51fd\u6570\u4e2d\u3002\u9644\u4e0a\u9876\u70b9\u8f6c\u6362\u7684\u76f8\u5173\u4ee3\u7801\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=\"\/\/ phongVertex.glsl - main()\nvFragPos = (uModelMatrix * vec4(aVertexPosition, 1.0)).xyz;\nvNormal = (uModelMatrix * vec4(aNormalPosition, 0.0)).xyz;\n\ngl_Position = uProjectionMatrix * uViewMatrix * uModelMatrix *\n            vec4(aVertexPosition, 1.0);\n\nvTextureCoord = aTextureCoord;\nvPositionFromLight = uLightMVP * vec4(aVertexPosition, 1.0);\" 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\">\/\/ phongVertex.glsl - main()<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">vFragPos<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">uModelMatrix<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">vec4<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">aVertexPosition<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #D8DEE9FF\">))<\/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: #D8DEE9\">vNormal<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">uModelMatrix<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">vec4<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">aNormalPosition<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.0<\/span><span style=\"color: #D8DEE9FF\">))<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xyz<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">gl_Position<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">uProjectionMatrix<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">uViewMatrix<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">uModelMatrix<\/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\">vec4<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">aVertexPosition<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">vTextureCoord<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">aTextureCoord<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">vPositionFromLight<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">uLightMVP<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">vec4<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">aVertexPosition<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>phongVertex.glsl\u662f\u548cphongFragment.glsl\u4e00\u540c\u5728loadOBJ.js\u4e2d\u88ab\u52a0\u8f7d\u7684\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u6bd4\u5bf9\u6df1\u5ea6\u503c<\/h3>\n\n\n\n<p>\u63a5\u4e0b\u6765\u5b9e\u73b0useShadowMap()\u51fd\u6570\u3002\u8fd9\u4e2a\u51fd\u6570\u7684\u76ee\u7684\u662f\u4e3a\u4e86\u786e\u5b9a\u7247\u6bb5\uff08\u50cf\u7d20\uff09\u662f\u5426\u5728\u9634\u5f71\u4e2d\u3002<\/p>\n\n\n\n<p>texture2D() \u662f\u4e00\u4e2aGLSL\u7684\u5185\u7f6e\u51fd\u6570\uff0c\u7528\u4e8e\u5bf92D\u7eb9\u7406\u8fdb\u884c\u91c7\u6837\u3002<\/p>\n\n\n\n<p>\u4ee3\u7801\u6846\u67b6\u4e2d\u7684unpack()\u548cpack()\u51fd\u6570\u662f\u4e3a\u4e86\u589e\u52a0\u6570\u503c\u7cbe\u5ea6\u800c\u8bbe\u7f6e\u7684\u3002\u539f\u56e0\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6df1\u5ea6\u4fe1\u606f\u662f\u4e00\u4e2a\u8fde\u7eed\u7684\u6d6e\u70b9\u6570\uff0c\u5b83\u7684\u8303\u56f4\u548c\u7cbe\u5ea6\u53ef\u80fd\u8d85\u51fa\u4e86\u4e00\u4e2a8\u4f4d\u901a\u9053\u6240\u80fd\u63d0\u4f9b\u7684\u3002\u76f4\u63a5\u5c06\u8fd9\u6837\u7684\u6df1\u5ea6\u503c\u5b58\u50a8\u5728\u4e00\u4e2a8\u4f4d\u901a\u9053\u4e2d\u4f1a\u5bfc\u81f4\u5927\u91cf\u7684\u7cbe\u5ea6\u4e22\u5931\uff0c\u4ece\u800c\u5bfc\u81f4\u9634\u5f71\u6548\u679c\u4e0d\u6b63\u786e\u3002\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u5145\u5206\u5229\u7528\u5176\u4ed6\u7684\u4e09\u4e2a\u901a\u9053\uff0c\u4e5f\u5c31\u662f\u5c06\u6df1\u5ea6\u503c\u7f16\u7801\u5230\u591a\u4e2a\u901a\u9053\u4e2d\u3002\u901a\u8fc7\u5206\u914d\u6df1\u5ea6\u503c\u7684\u4e0d\u540c\u90e8\u5206\u5230R, G, B, A\u56db\u4e2a\u901a\u9053\uff0c\u6211\u4eec\u53ef\u4ee5\u7528\u66f4\u9ad8\u7684\u7cbe\u5ea6\u6765\u5b58\u50a8\u6df1\u5ea6\u503c\u3002\u5f53\u6211\u4eec\u9700\u8981\u4f7f\u7528\u6df1\u5ea6\u503c\u65f6\uff0c\u5c31\u53ef\u4ee5\u4ece\u8fd9\u56db\u4e2a\u901a\u9053\u89e3\u7801\u51fa\u6765\u3002<\/li>\n<\/ul>\n\n\n\n<p>closestDepthVec\u662fblocker\u7684\u6df1\u5ea6\u4fe1\u606f\uff0c<\/p>\n\n\n\n<p>\u6700\u540e\uff0cclosestDepth\u4e0ecurrentDepth\u8fdb\u884c\u6bd4\u5bf9\uff0c\u5982\u679cblocker(closestDepth)\u6bd4\u4e3b\u76f8\u673a\u8981\u6e32\u67d3\u7684\u7247\u5143\u7684\u6df1\u5ea6\u503c(shadingPoint.z)\u5927\uff0c\u8bf4\u660e\u5f53\u524d\u7684Shading Point\u6ca1\u6709\u88ab\u906e\u6321\uff0cvisibility\u8fd4\u56de1.0\u3002\u53e6\u5916\u4e3a\u4e86\u89e3\u51b3\u4e00\u4e9b\u9634\u5f71\u75e4\u75ae\u548c\u81ea\u906e\u6321\u95ee\u9898\uff0c\u53ef\u4ee5\u5c06blocker\u7684\u4f4d\u7f6e\u8c03\u5927\u4e00\u4e9b\uff0c\u5373\u52a0\u4e0aEPS\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=\"\/\/ phongFragment.glsl\nfloat useShadowMap(sampler2D shadowMap, vec4 shadingPoint){\n  \/\/ Retrieve the closest depth value from the light's perspective using the fragment's position in light space.\n  float closestDepth = unpack(texture2D(shadowMap, shadingPoint.xy));\n  \/\/ Compare the fragment's depth with the closest depth to determine if it's in shadow.\n  return (closestDepth + EPS + getBias(.4)&gt; shadingPoint.z) ? 1.0 : 0.0;\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\">\/\/ phongFragment.glsl<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">useShadowMap<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">sampler2D<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">vec4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadingPoint<\/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\">\/\/ Retrieve the closest depth value from the light&#39;s perspective using the fragment&#39;s position in light space.<\/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\">closestDepth<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">unpack<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #88C0D0\">texture2D<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xy<\/span><span style=\"color: #D8DEE9FF\">))<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">  <\/span><span style=\"color: #616E88\">\/\/ Compare the fragment&#39;s depth with the closest depth to determine if it&#39;s in shadow.<\/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\">closestDepth<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">EPS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">getBias<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">.4<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadingPoint<\/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: #B48EAD\">1.0<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.0<\/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>\u5176\u5b9e\u76ee\u524d\u8fd8\u662f\u6709\u70b9\u95ee\u9898\u3002\u6211\u4eec\u76ee\u524d\u7684\u5149\u6e90\u76f8\u673a\u5e76\u4e0d\u662f\u4e07\u5411\u7684\uff0c\u4e5f\u5c31\u662f\u8bf4\u5176\u7167\u5c04\u8303\u56f4\u53ea\u6709\u4e00\u5c0f\u90e8\u5206\u3002\u5982\u679c\u6a21\u578b\u5728lightCam\u7684\u8303\u56f4\u5185\uff0c\u90a3\u4e48\u753b\u9762\u662f\u5b8c\u5168\u6b63\u786e\u7684\u3002<\/p>\n\n\n\n<p>\u4f46\u662f\u5f53\u6a21\u578b\u5728lightCam\u7684\u8303\u56f4\u5916\uff0c\u5c31\u4e0d\u5e94\u8be5\u53c2\u4e0euseShadowMap\u7684\u8ba1\u7b97\u3002\u4f46\u662f\u76ee\u524d\u6211\u4eec\u5e76\u6ca1\u6709\u5b8c\u6210\u76f8\u5173\u7684\u903b\u8f91\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5982\u679c\u5728lightCam\u7684MVP\u53d8\u6362\u77e9\u9635\u8303\u56f4\u4e4b\u5916\u7684\u4f4d\u7f6e\u5728\u7ecf\u8fc7\u8ba1\u7b97\u4e4b\u540e\u53ef\u80fd\u4f1a\u51fa\u73b0\u610f\u60f3\u4e0d\u5230\u7684\u9519\u8bef\u3002\u518d\u770b\u4e00\u4e0b\u7075\u9b42\u793a\u610f\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-209.png\" alt=\"\" class=\"wp-image-1333 lazyload\"\/><noscript><img decoding=\"async\" width=\"1110\" height=\"724\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-209.png\" alt=\"\" class=\"wp-image-1333 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-209.png 1110w, https:\/\/remoooo.com\/wp-content\/uploads\/image-209-300x196.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-209-1024x668.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-209-768x501.png 768w\" sizes=\"(max-width: 1110px) 100vw, 1110px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u4e0a\u4e00\u8282\u6211\u4eec\u5728\u5b9a\u5411\u5149\u6e90\u811a\u672c\u4e2d\u5b9a\u4e49\u4e86zFar\u3001zNear\u7b49\u4fe1\u606f\u3002\u5982\u4e0b\u4ee3\u7801\u6240\u793a\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=\"\/\/ DirectionalLight.js - CalcLightMVP()\nlet left = -100.0, right = -left, bottom = -100.0, top = -bottom, near = 0.1, far = 1024.0;\" 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\">\/\/ DirectionalLight.js - CalcLightMVP()<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">let<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">left<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #B48EAD\">100.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">right<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">left<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">bottom<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #B48EAD\">100.0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">top<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">bottom<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">near<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.1<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">far<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1024.0<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u56e0\u6b64\uff0c\u4e3a\u4e86\u89e3\u51b3\u6a21\u578b\u5728lightCam\u8303\u56f4\u4e4b\u5916\u7684\u95ee\u9898\uff0c\u6211\u4eec\u5728useShadowMap\u6216\u5728useShadowMap\u4e4b\u524d\u7684\u4ee3\u7801\u4e2d\uff0c\u52a0\u5165\u4ee5\u4e0b\u903b\u8f91\u4ee5\u5254\u9664\u4e0d\u5728lightCam\u8303\u56f4\u7684\u91c7\u6837\u70b9\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=\"\/\/ phongFragment.glsl - main()\n...\nif(shadingPoint.x<0.||shadingPoint.x&gt;1.||\n   shadingPoint.y<0.||shadingPoint.y&gt;1.){\n  visibility=1.;\/\/ \u5149\u6e90\u770b\u4e0d\u89c1\u7684\u5730\u65b9\uff0c\u56e0\u6b64\u4e0d\u4f1a\u88ab\u9634\u5f71\u6240\u8986\u76d6\n}else{\n  visibility=useShadowMap(uShadowMap,vec4(shadingPoint,1.));\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\">\/\/ phongFragment.glsl - main()<\/span><\/span>\n<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: #D8DEE9\">shadingPoint<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #B48EAD\">0.<\/span><span style=\"color: #81A1C1\">||<\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">x<\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #B48EAD\">1.<\/span><span style=\"color: #81A1C1\">||<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">   <\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #B48EAD\">0.<\/span><span style=\"color: #81A1C1\">||<\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">y<\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #B48EAD\">1.<\/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\">visibility<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #B48EAD\">1.<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #616E88\">\/\/ \u5149\u6e90\u770b\u4e0d\u89c1\u7684\u5730\u65b9\uff0c\u56e0\u6b64\u4e0d\u4f1a\u88ab\u9634\u5f71\u6240\u8986\u76d6<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #81A1C1\">else<\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">visibility<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #88C0D0\">useShadowMap<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">uShadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #88C0D0\">vec4<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #ECEFF4\">,<\/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: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">...<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u6548\u679c\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u5de6\u8fb9\u662f\u505a\u4e86\u5254\u9664\u903b\u8f91\u7684\uff0c\u53f3\u8fb9\u662f\u6ca1\u6709\u505a\u5254\u9664\u903b\u8f91\u7684\u3002\u5f53202\u9171\u79fb\u52a8\u5230lightCam\u7684\u89c6\u9525\u4f53\u8fb9\u754c\u65f6\uff0c\u5979\u5c31\u76f4\u63a5\u88ab\u622a\u80a2\u4e86\uff0c\u975e\u5e38\u5413\u4eba\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-205.png\" alt=\"\" class=\"wp-image-1329 lazyload\"\/><noscript><img decoding=\"async\" width=\"610\" height=\"688\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-205.png\" alt=\"\" class=\"wp-image-1329 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-205.png 610w, https:\/\/remoooo.com\/wp-content\/uploads\/image-205-266x300.png 266w\" sizes=\"(max-width: 610px) 100vw, 610px\" \/><\/noscript><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5f53\u7136\u4e86\uff0c\u4e0d\u5b8c\u6210\u8fd9\u4e00\u6b65\u4e5f\u6ca1\u95ee\u9898\u3002\u5b9e\u9645\u4e0a\uff0c\u5728\u5f00\u53d1\u4e2d\u6211\u4eec\u4f1a\u4f7f\u7528\u4e07\u5411\u5149\u6e90\uff0c\u5373lightCam\u662f360\u5ea6\u5168\u65b9\u4f4d\u7684\uff0c\u6211\u4eec\u53ea\u9700\u8981\u5254\u9664\u90a3\u4e9b\u5728zFar\u5e73\u9762\u4e4b\u5916\u7684\u70b9\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u6dfb\u52a0bias\u6539\u5584\u81ea\u906e\u6321\u95ee\u9898<\/h3>\n\n\n\n<p>\u5f53\u6211\u4eec\u4ece\u5149\u6e90\u7684\u89c6\u89d2\u6e32\u67d3\u6df1\u5ea6\u56fe\u65f6\uff0c\u7531\u4e8e\u6d6e\u70b9\u6570\u7cbe\u5ea6\u7684\u9650\u5236\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u8bef\u5dee\u3002\u56e0\u6b64\uff0c\u5f53\u6211\u4eec\u5728\u4e3b\u6e32\u67d3\u8fc7\u7a0b\u4e2d\u4f7f\u7528\u6df1\u5ea6\u56fe\u65f6\uff0c\u53ef\u80fd\u4f1a\u770b\u5230\u7269\u4f53\u81ea\u5df1\u7684\u9634\u5f71\uff0c\u8fd9\u79f0\u4e3a\u81ea\u906e\u6321\u6216\u9634\u5f71\u5931\u771f\u3002<\/p>\n\n\n\n<p>\u5728\u5b8c\u6210\u4e862-pass\u6e32\u67d3\u4e4b\u540e\uff0c\u6211\u4eec\u4f1a\u5728202\u9171\u7684\u5934\u53d1\u7b49\u591a\u5904\u4f4d\u7f6e\u53d1\u73b0\u4e86\u8fd9\u6837\u7684\u9634\u5f71\u75e4\u75ae\uff0c\u5341\u5206\u4e0d\u7f8e\u89c2\u3002\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-207.png\" alt=\"\" class=\"wp-image-1331 lazyload\"\/><noscript><img decoding=\"async\" width=\"960\" height=\"960\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-207.png\" alt=\"\" class=\"wp-image-1331 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-207.png 960w, https:\/\/remoooo.com\/wp-content\/uploads\/image-207-300x300.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-207-150x150.png 150w, https:\/\/remoooo.com\/wp-content\/uploads\/image-207-768x768.png 768w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u6211\u4eec\u7406\u8bba\u4e0a\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0bias\u7f13\u89e3\u81ea\u906e\u6321\u95ee\u9898\u3002\u8fd9\u91cc\u6211\u63d0\u4f9b\u4e00\u79cd\u52a8\u6001\u8c03\u6574bias\u7684\u65b9\u6cd5\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=\"\/\/ phongFragment.glsl\n\/\/ \u4f7f\u7528bias\u504f\u79fb\u503c\u4f18\u5316\u81ea\u906e\u6321\nfloat getBias(float ctrl) {\n  vec3 lightDir = normalize(uLightPos);\n  vec3 normal = normalize(vNormal);\n  float m = 200.0 \/ 2048.0 \/ 2.0; \/\/ \u6b63\u4ea4\u77e9\u9635\u5bbd\u9ad8\/shadowmap\u5206\u8fa8\u7387\/2\n  float bias = max(m, m * (1.0 - dot(normal, lightDir))) * ctrl;\n  return 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\">\/\/ phongFragment.glsl<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ \u4f7f\u7528bias\u504f\u79fb\u503c\u4f18\u5316\u81ea\u906e\u6321<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">getBias<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">ctrl<\/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\">vec3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lightDir<\/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: #D8DEE9\">uLightPos<\/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\">vec3<\/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\">normalize<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">vNormal<\/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\">m<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">200.0<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">2048.0<\/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 style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ \u6b63\u4ea4\u77e9\u9635\u5bbd\u9ad8\/shadowmap\u5206\u8fa8\u7387\/2<\/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\">bias<\/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\">m<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">m<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #B48EAD\">1.0<\/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\">normal<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lightDir<\/span><span style=\"color: #D8DEE9FF\">))) <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">ctrl<\/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\">bias<\/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\u5148\u5f53\u5149\u7ebf\u548c\u6cd5\u7ebf\u51e0\u4e4e\u5782\u76f4\u7684\u65f6\u5019\uff0c\u6781\u6709\u53ef\u80fd\u53d1\u751f\u81ea\u906e\u6321\u73b0\u8c61\uff0c\u6bd4\u5982\u6211\u4eec\u7684202\u9171\u7684\u540e\u8111\u52fa\u5904\u3002\u56e0\u6b64\u6211\u4eec\u9700\u8981\u83b7\u53d6\u5149\u7ebf\u7684\u65b9\u5411\u4e0e\u6cd5\u7ebf\u7684\u65b9\u5411\u3002\u5176\u4e2d\uff0cm\u8868\u793a\u5149\u6e90\u89c6\u56fe\u4e0b\u6bcf\u4e2a\u50cf\u7d20\u4ee3\u8868\u7684\u573a\u666f\u7a7a\u95f4\u7684\u5927\u5c0f\u3002<\/p>\n\n\n\n<p>\u6700\u540e\u5c06 phongFragment.glsl \u7684 useShadowMap() \u6539\u4e3a\u4e0b\u6587\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=\"\/\/ phongFragment.glsl\nfloat useShadowMap(sampler2D shadowMap, vec4 shadingPoint){\n  ...\n  return (closestDepth + EPS + getBias(.3)&gt; shadingPoint.z) ? 1.0 : 0.0;\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\">\/\/ phongFragment.glsl<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">useShadowMap<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">sampler2D<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">vec4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadingPoint<\/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: #D8DEE9\">closestDepth<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">EPS<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">getBias<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">.3<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadingPoint<\/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: #B48EAD\">1.0<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.0<\/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>\u6548\u679c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-210.png\" alt=\"\" class=\"wp-image-1334 lazyload\"\/><noscript><img decoding=\"async\" width=\"940\" height=\"940\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-210.png\" alt=\"\" class=\"wp-image-1334 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-210.png 940w, https:\/\/remoooo.com\/wp-content\/uploads\/image-210-300x300.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-210-150x150.png 150w, https:\/\/remoooo.com\/wp-content\/uploads\/image-210-768x768.png 768w\" sizes=\"(max-width: 940px) 100vw, 940px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u9700\u8981\u6ce8\u610f\uff0c\u8f83\u5927\u7684bias\u503c\u53ef\u80fd\u5bfc\u81f4\u8fc7\u5ea6\u77eb\u6b63\u5e26\u6765\u7684\u9634\u5f71\u7f3a\u5931\u7ed3\u679c\uff0c\u8f83\u5c0f\u7684\u503c\u53c8\u53ef\u80fd\u8d77\u4e0d\u5230\u6539\u5584\u75e4\u75ae\u7684\u6548\u679c\uff0c\u56e0\u6b64\u9700\u8981\u591a\u6b21\u5c1d\u8bd5\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">PCF<\/h2>\n\n\n\n<p>\u4f46\u662fShadowMap\u7684\u5206\u8fa8\u7387\u662f\u6709\u9650\u7684\u3002\u5b9e\u9645\u6e38\u620f\u4e2d\uff0cShadowMap\u7684\u5206\u8fa8\u7387\u662f\u8fdc\u8fdc\u5c0f\u4e8e\u5206\u8fa8\u7387\u7684\uff08\u539f\u56e0\u662f\u6027\u80fd\u6d88\u8017\u592a\u5927\uff09\uff0c\u56e0\u6b64\u6211\u4eec\u9700\u8981\u4e00\u79cd\u67d4\u5316\u952f\u9f7f\u7684\u65b9\u6cd5\u3002PCF\u65b9\u6cd5\u5c31\u662f\u5728ShadowMap\u4e0a\u4e3a\u6bcf\u4e2a\u50cf\u7d20\u53d6\u5176\u5468\u8fb9\u7684\u591a\u4e2a\u50cf\u7d20\u505a\u5e73\u5747\u8ba1\u7b97\u51faShading Point\u7684\u3002<\/p>\n\n\n\n<p>\u6700\u521d\u4eba\u4eec\u60f3\u7528\u8fd9\u4e2a\u65b9\u6cd5\u8f6f\u5316\u9634\u5f71\uff0c\u4f46\u662f\u505a\u5230\u540e\u9762\u53d1\u73b0\u8fd9\u4e2a\u65b9\u6cd5\u53ef\u4ee5\u505a\u5230\u8f6f\u9634\u5f71\u7684\u6548\u679c\u3002<\/p>\n\n\n\n<p>\u5728\u4f7f\u7528PCF\u7b97\u6cd5\u4f30\u8ba1\u9634\u5f71\u6bd4\u4f8b\u4e4b\u524d\uff0c\u6211\u4eec\u9700\u8981\u51c6\u5907\u4e00\u7ec4\u91c7\u6837\u70b9\u3002\u5bf9\u4e8ePCF\u9634\u5f71\uff0c\u5728\u79fb\u52a8\u8bbe\u5907\u6211\u4eec\u53ea\u4f1a\u91c7\u75284-8\u4e2a\u91c7\u6837\u70b9\uff0c\u800c\u9ad8\u8d28\u91cf\u7684\u753b\u9762\u5219\u6765\u523016-32\u4e2a\u3002\u5728\u8fd9\u4e00\u8282\u6211\u4eec\u4f7f\u75288\u4e2a\u91c7\u6837\u70b9\uff0c\u5728\u8fd9\u4e2a\u57fa\u7840\u4e0a\u901a\u8fc7\u8c03\u6574\u751f\u6210\u7684\u6837\u672c\u7684\u53c2\u6570\u4ece\u800c\u6539\u8fdb\u753b\u9762\uff0c\u51cf\u5c11\u566a\u70b9\u7b49\u7b49\u3002<\/p>\n\n\n\n<p>\u4f46\u662f\uff0c\u4ee5\u4e0a\u4e0d\u540c\u91c7\u6837\u65b9\u5f0f\u5bf9\u4e8e\u6700\u7ec8\u7684\u753b\u9762\u5f71\u54cd\u5176\u5b9e\u4e0d\u7b97\u7279\u522b\u5927\uff0c\u6700\u5f71\u54cd\u753b\u9762\u7684\u5176\u5b9e\u662f\u505aPCF\u65f6\u5019\u7684\u9634\u5f71\u8d34\u56fe\u5927\u5c0f\uff0c\u4e5f\u5c31\u662fshadow map\u7684\u5927\u5c0f\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u662f\u4ee3\u7801\u4e2d\u7684textureSize\uff0c\u4f46\u662f\u4e00\u822c\u800c\u8a00\u8fd9\u4e00\u9879\u5728\u9879\u76ee\u4e2d\u90fd\u662f\u56fa\u5b9a\u4e00\u4e2a\u503c\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u6211\u4eec\u63a5\u4e0b\u6765\u7684\u601d\u8def\u662f\u5148\u5b9e\u73b0PCF\uff0c\u6700\u540e\u518d\u5fae\u8c03\u91c7\u6837\u65b9\u5f0f\u3002<\/p>\n\n\n\n<p><strong>\u6bd5\u7adf\uff0cpremature optimization\u662f\u5927\u5fcc\u3002<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b9e\u73b0PCF<\/h3>\n\n\n\n<p>\u5728main()\u4e2d\uff0c\u4fee\u6539\u4f7f\u7528\u7684\u9634\u5f71\u7b97\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=\"\/\/ phongFragment.glsl\nvoid main(void){  \n    ...\n    visibility = PCF(uShadowMap, vec4(shadingPoint, 1.0));\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\">\/\/ phongFragment.glsl<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">void<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">main<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">void<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">{<\/span><span style=\"color: #D8DEE9FF\">  <\/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\">visibility<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PCF<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">uShadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">vec4<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #D8DEE9FF\">))<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>shadowMap.xy \u662f\u7528\u4e8e\u5728\u9634\u5f71\u8d34\u56fe\u4e0a\u91c7\u6837\u7684\u7eb9\u7406\u5750\u6807\uff0cshadowMap.z \u662f\u8be5\u50cf\u7d20\u7684\u6df1\u5ea6\u503c\u3002<\/p>\n\n\n\n<p>\u91c7\u6837\u51fd\u6570\u8981\u6c42\u6211\u4eec\u4f20\u5165\u4e00\u4e2aVec2\u53d8\u91cf\u4f5c\u4e3a\u968f\u673a\u79cd\u5b50\uff0c\u63a5\u7740\u4f1a\u5728\u4e00\u4e2a\u534a\u5f84\u4e3a1\u7684\u5706\u57df\u5185\u8fd4\u56de\u968f\u673a\u7684\u70b9\u3002<\/p>\n\n\n\n<p>\u63a5\u7740\u5c06$[0, 1]^2$\u7684uv\u5750\u6807\u4e2d\u5206\u6210textureSize\u4efd\uff0c\u8bbe\u7f6e\u597d\u6ee4\u6ce2\u7a97\u53e3\u4e4b\u540e\uff0c\u5c31\u5728\u5f53\u524d\u7684shadingPoint\u4f4d\u7f6e\u9644\u8fd1\u91c7\u6837\u591a\u6b21\uff0c\u6700\u540e\u7edf\u8ba1\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=\"\/\/ phongFragment.glsl\nfloat PCF(sampler2D shadowMap,vec4 shadingPoint){\n  \/\/ \u91c7\u6837 \u91c7\u6837\u7ed3\u679c\u4f1a\u8fd4\u56de\u5230\u5168\u5c40\u53d8\u91cf - poissonDisk[]\n  poissonDiskSamples(shadingPoint.xy);\n\n  float textureSize=256.; \/\/ shadow map \u7684\u5927\u5c0f, \u8d8a\u5927\u6ee4\u6ce2\u7684\u8303\u56f4\u8d8a\u5c0f\n  float filterStride=1.; \/\/ \u6ee4\u6ce2\u7684\u6b65\u957f\n  float filterRange=1.\/textureSize*filterStride; \/\/ \u6ee4\u6ce2\u7a97\u53e3\u7684\u8303\u56f4\n  int noShadowCount=0; \/\/ \u6709\u591a\u5c11\u70b9\u4e0d\u5728\u9634\u5f71\u91cc\n  for(int i=0;i<NUM_SAMPLES;i++){\n    vec2 sampleCoord=poissonDisk[i]*filterRange+shadingPoint.xy;\n    vec4 closestDepthVec=texture2D(shadowMap,sampleCoord);\n    float closestDepth=unpack(closestDepthVec);\n    float currentDepth=shadingPoint.z;\n    if(currentDepth<closestDepth+EPS){\n      noShadowCount+=1;\n    }\n  }\n  return float(noShadowCount)\/float(NUM_SAMPLES);\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\">\/\/ phongFragment.glsl<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">PCF<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">sampler2D<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9\">vec4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadingPoint<\/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\">\/\/ \u91c7\u6837 \u91c7\u6837\u7ed3\u679c\u4f1a\u8fd4\u56de\u5230\u5168\u5c40\u53d8\u91cf - poissonDisk[]<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #88C0D0\">poissonDiskSamples<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xy<\/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\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">textureSize<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #B48EAD\">256.<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ shadow map \u7684\u5927\u5c0f, \u8d8a\u5927\u6ee4\u6ce2\u7684\u8303\u56f4\u8d8a\u5c0f<\/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\">filterStride<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #B48EAD\">1.<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ \u6ee4\u6ce2\u7684\u6b65\u957f<\/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\">filterRange<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #B48EAD\">1.<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">textureSize<\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9\">filterStride<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ \u6ee4\u6ce2\u7a97\u53e3\u7684\u8303\u56f4<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">int<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">noShadowCount<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ \u6709\u591a\u5c11\u70b9\u4e0d\u5728\u9634\u5f71\u91cc<\/span><\/span>\n<span class=\"line\"><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: #81A1C1\">=<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9\">NUM_SAMPLES<\/span><span style=\"color: #81A1C1\">;<\/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\">vec2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">sampleCoord<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9\">poissonDisk<\/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: #D8DEE9\">filterRange<\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xy<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">vec4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">closestDepthVec<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #88C0D0\">texture2D<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9\">sampleCoord<\/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\">closestDepth<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #88C0D0\">unpack<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">closestDepthVec<\/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\">currentDepth<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9\">shadingPoint<\/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: #81A1C1\">if<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">currentDepth<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9\">closestDepth<\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9\">EPS<\/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\">noShadowCount<\/span><span style=\"color: #81A1C1\">+=<\/span><span style=\"color: #B48EAD\">1<\/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 style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">float<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">noShadowCount<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #88C0D0\">float<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">NUM_SAMPLES<\/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>\u6548\u679c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-212.png\" alt=\"\" class=\"wp-image-1336 lazyload\"\/><noscript><img decoding=\"async\" width=\"1376\" height=\"1292\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-212.png\" alt=\"\" class=\"wp-image-1336 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-212.png 1376w, https:\/\/remoooo.com\/wp-content\/uploads\/image-212-300x282.png 300w, https:\/\/remoooo.com\/wp-content\/uploads\/image-212-1024x961.png 1024w, https:\/\/remoooo.com\/wp-content\/uploads\/image-212-768x721.png 768w\" sizes=\"(max-width: 1376px) 100vw, 1376px\" \/><\/noscript><figcaption class=\"wp-element-caption\">image-20230805213129275<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">poissonDisk\u91c7\u6837\u53c2\u6570\u8bbe\u7f6e<\/h3>\n\n\n\n<p>\u5728\u4f5c\u4e1a\u6846\u67b6\u4e2d\uff0c\u6211\u53d1\u73b0\u8fd9\u4e2apossionDiskSamples\u51fd\u6570\u5e76\u4e0d\u662f\u771f\u6b63\u7684\u6cca\u677e\u5706\u76d8\u5206\u5e03\uff1f\u6709\u70b9\u5947\u602a\u3002<strong>\u4e2a\u4eba\u611f\u89c9\u66f4\u50cf\u662f\u5747\u5300\u5206\u5e03\u5728\u87ba\u65cb\u7ebf\u4e0a\u7684\u70b9<\/strong>\u3002\u5e0c\u671b\u8bfb\u8005\u670b\u53cb\u53ef\u4ee5\u6307\u5bfc\u4e00\u4e0b\u3002\u6211\u9996\u5148\u5148\u6309\u7167\u6846\u67b6\u4e2d\u7684\u4ee3\u7801\u5206\u6790\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\u6846\u67b6\u4e2dpoissonDiskSamples\u7684\u76f8\u5173\u6570\u5b66\u516c\u5f0f<\/strong>\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=\"\/\/ phongFragment.glsl\nfloat ANGLE_STEP = PI2 * float( NUM_RINGS ) \/ float( NUM_SAMPLES );\nfloat INV_NUM_SAMPLES = 1.0 \/ float( NUM_SAMPLES );\nfloat angle = rand_2to1( randomSeed ) * PI2;\nfloat radius = INV_NUM_SAMPLES;\nfloat radiusStep = radius;\" 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\">\/\/ phongFragment.glsl<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">ANGLE_STEP<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">PI2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">float<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #D8DEE9\">NUM_RINGS<\/span><span style=\"color: #D8DEE9FF\"> ) <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">float<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #D8DEE9\">NUM_SAMPLES<\/span><span style=\"color: #D8DEE9FF\"> )<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">INV_NUM_SAMPLES<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">float<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #D8DEE9\">NUM_SAMPLES<\/span><span style=\"color: #D8DEE9FF\"> )<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">angle<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">rand_2to1<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #D8DEE9\">randomSeed<\/span><span style=\"color: #D8DEE9FF\"> ) <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">PI2<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">radius<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">INV_NUM_SAMPLES<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">radiusStep<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">radius<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u8f6c\u6362\u6781\u5750\u6807\u4e3a\u7b1b\u5361\u5c14\u5750\u6807: \u66f4\u65b0\u89c4\u5219\uff1a \u534a\u5f84\u53d8\u5316\uff1a<\/p>\n\n\n\n<p>\u5177\u4f53\u4ee3\u7801\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=\"\/\/ phongFragment.glsl\nvec2 poissonDisk[NUM_SAMPLES];\n\nvoid poissonDiskSamples( const in vec2 randomSeed ) {\n  float ANGLE_STEP = PI2 * float( NUM_RINGS ) \/ float( NUM_SAMPLES );\n  float INV_NUM_SAMPLES = 1.0 \/ float( NUM_SAMPLES );\/\/ \u628a\u6837\u672c\u653e\u5728\u4e86\u4e00\u4e2a\u534a\u5f84\u4e3a1\u7684\u5706\u57df\u5185\n\n  float angle = rand_2to1( randomSeed ) * PI2;\n  float radius = INV_NUM_SAMPLES;\n  float radiusStep = radius;\n\n  for( int i = 0; i < NUM_SAMPLES; i ++ ) {\n    poissonDisk[i] = vec2( cos( angle ), sin( angle ) ) * pow( radius, 0.75 );\n    radius += radiusStep;\n    angle += ANGLE_STEP;\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\">\/\/ phongFragment.glsl<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">vec2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">poissonDisk<\/span><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">NUM_SAMPLES<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #81A1C1\">;<\/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\">poissonDiskSamples<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #D8DEE9\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">in<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">vec2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">randomSeed<\/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\">ANGLE_STEP<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">PI2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">float<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #D8DEE9\">NUM_RINGS<\/span><span style=\"color: #D8DEE9FF\"> ) <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">float<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #D8DEE9\">NUM_SAMPLES<\/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\">INV_NUM_SAMPLES<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1.0<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">float<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #D8DEE9\">NUM_SAMPLES<\/span><span style=\"color: #D8DEE9FF\"> )<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #616E88\">\/\/ \u628a\u6837\u672c\u653e\u5728\u4e86\u4e00\u4e2a\u534a\u5f84\u4e3a1\u7684\u5706\u57df\u5185<\/span><\/span>\n<span class=\"line\"><\/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\">angle<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">rand_2to1<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #D8DEE9\">randomSeed<\/span><span style=\"color: #D8DEE9FF\"> ) <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">PI2<\/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\">radius<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">INV_NUM_SAMPLES<\/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\">radiusStep<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">radius<\/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\">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: #D8DEE9\">NUM_SAMPLES<\/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\">++<\/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\">poissonDisk<\/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\">vec2<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #88C0D0\">cos<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #D8DEE9\">angle<\/span><span style=\"color: #D8DEE9FF\"> )<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">sin<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #D8DEE9\">angle<\/span><span style=\"color: #D8DEE9FF\"> ) ) <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">pow<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #D8DEE9\">radius<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.75<\/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\">radius<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">radiusStep<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">angle<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">ANGLE_STEP<\/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: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u4ee5\u4e0b\u53c2\u6570\u6211\u4eec\u53ef\u4ee5\u8c03\u6574\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u534a\u5f84\u53d8\u5316\u6307\u6570\u7684\u9009\u53d6<\/strong><\/li>\n<\/ul>\n\n\n\n<p>\u5173\u4e8e\u4f5c\u4e1a\u6846\u67b6\u4e2d\u4e3a\u4ec0\u4e48\u8981\u75280.75\u8fd9\u4e2a\u6570\u5b57\uff0c\u6211\u505a\u4e86\u4e00\u4e2a\u6bd4\u8f83\u5f62\u8c61\u7684\u52a8\u753b\uff0c\u5c55\u793a\u4e86\u5728\u6cca\u677e\u91c7\u6837\u65f6\u6bcf\u4e2a\u7ed3\u679c\u5750\u6807\u4e0e\u5706\u5fc3\u7684\u8ddd\u79bb\uff08\u534a\u5f84\uff09\u7684\u6307\u6570\u57280.2\u52301.1\u4e4b\u95f4\u7684\u53d8\u5316\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u5f53\u6570\u503c\u53d6\u52300.75\u4ee5\u4e0a\u65f6\uff0c\u57fa\u672c\u53ef\u4ee5\u8ba4\u4e3a\u6570\u636e\u91cd\u5fc3\u4f1a\u66f4\u504f\u5411\u4e8e\u53d6\u5706\u5fc3\u7684\u4f4d\u7f6e\u3002\u4e0b\u9762\u52a8\u753b\u7684\u4ee3\u7801\u6211\u653e\u5728\u4e86 <strong>\u9644\u5f551.2<\/strong> \u4e2d\uff0c\u8bfb\u8005\u53ef\u4ee5\u81ea\u884c\u7f16\u8bd1\u8c03\u8bd5\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e0a\u9762\u662f\u4e00\u5219\u89c6\u9891\uff0c\u82e5\u60a8\u662fPDF\u7248\u672c\u5219\u9700\u8981\u524d\u5f80\u7f51\u7ad9\u67e5\u770b\u3002<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7ed5\u5708\u6570<\/strong><strong>NUM_RINGS<\/strong><\/li>\n<\/ul>\n\n\n\n<p>NUM_RINGS\u4e0eNUM_SAMPLES\u4e00\u8d77\u7528\u6765\u8ba1\u7b97\u6bcf\u4e2a\u91c7\u6837\u70b9\u4e4b\u95f4\u7684\u89d2\u5ea6\u5deeANGLE_STEP\u3002<\/p>\n\n\n\n<p>\u6b64\u65f6\u53ef\u4ee5\u6709\u5982\u4e0b\u5206\u6790\uff1a<\/p>\n\n\n\n<p>\u5982\u679cNUM_RINGS\u7b49\u4e8eNUM_SAMPLES\uff0c\u90a3\u4e48ANGLE_STEP\u5c06\u7b49\u4e8e$2\u03c0$\uff0c\u8fd9\u610f\u5473\u7740\u6bcf\u6b21\u8fed\u4ee3\u4e2d\u7684\u89d2\u5ea6\u589e\u91cf\u90fd\u662f\u4e00\u4e2a\u5b8c\u6574\u7684\u5706\uff0c\u8fd9\u663e\u7136\u6ca1\u6709\u610f\u4e49\u3002\u5982\u679cNUM_RINGS\u5c0f\u4e8eNUM_SAMPLES\uff0c\u90a3\u4e48ANGLE_STEP\u5c06\u5c0f\u4e8e$2\u03c0$\uff0c\u8fd9\u610f\u5473\u7740\u6bcf\u6b21\u8fed\u4ee3\u4e2d\u7684\u89d2\u5ea6\u589e\u91cf\u90fd\u662f\u4e00\u4e2a\u5706\u7684\u90e8\u5206\u3002\u5982\u679cNUM_RINGS\u5927\u4e8eNUM_SAMPLES\uff0c\u90a3\u4e48ANGLE_STEP\u5c06\u5927\u4e8e$2\u03c0$\uff0c\u8fd9\u610f\u5473\u7740\u6bcf\u6b21\u8fed\u4ee3\u4e2d\u7684\u89d2\u5ea6\u589e\u91cf\u90fd\u8d85\u8fc7\u4e86\u4e00\u4e2a\u5706\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u8986\u76d6\u548c\u91cd\u53e0\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u5728\u8fd9\u4e2a\u4ee3\u7801\u6846\u67b6\u4e2d\uff0c\u5f53\u6211\u4eec\u7684\u91c7\u6837\u6570\u56fa\u5b9a\u65f6\uff08\u6211\u8fd9\u91cc\u662f8\uff09\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u91c7\u53d6\u51b3\u7b56\u8ba9\u91c7\u6837\u70b9\u66f4\u52a0\u5747\u5300\u7684\u5206\u5e03\u3002<\/p>\n\n\n\n<p>\u56e0\u6b64\u7406\u8bba\u4e0a\uff0c\u8fd9\u91ccNUM_RINGS\u76f4\u63a5\u8bbe\u7f6e\u4e3a1\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e0a\u9762\u662f\u4e00\u5219\u89c6\u9891\uff0c\u82e5\u60a8\u662fPDF\u7248\u672c\u5219\u9700\u8981\u524d\u5f80\u7f51\u7ad9\u67e5\u770b\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u5f53\u91c7\u6837\u70b9\u5206\u5e03\u5747\u5300\u7684\u60c5\u51b5\u4e0b\uff0c\u6548\u679c\u8fd8\u4e0d\u9519\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-211.png\" alt=\"\" class=\"wp-image-1335 lazyload\"\/><noscript><img decoding=\"async\" width=\"694\" height=\"458\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-211.png\" alt=\"\" class=\"wp-image-1335 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-211.png 694w, https:\/\/remoooo.com\/wp-content\/uploads\/image-211-300x198.png 300w\" sizes=\"(max-width: 694px) 100vw, 694px\" \/><\/noscript><\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-213.png\" alt=\"\" class=\"wp-image-1337 lazyload\"\/><noscript><img decoding=\"async\" width=\"418\" height=\"246\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-213.png\" alt=\"\" class=\"wp-image-1337 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-213.png 418w, https:\/\/remoooo.com\/wp-content\/uploads\/image-213-300x177.png 300w\" sizes=\"(max-width: 418px) 100vw, 418px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u5982\u679c\u91c7\u6837\u975e\u5e38\u4e0d\u5747\u5300\uff0c\u6bd4\u5982NUM_RINGS\u7b49\u4e8eNUM_SAMPLES\u7684\u60c5\u51b5\uff0c\u5c31\u4f1a\u51fa\u73b0\u6bd4\u8f83\u810f\u7684\u753b\u9762\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-215.png\" alt=\"\" class=\"wp-image-1339 lazyload\"\/><noscript><img decoding=\"async\" width=\"478\" height=\"260\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-215.png\" alt=\"\" class=\"wp-image-1339 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-215.png 478w, https:\/\/remoooo.com\/wp-content\/uploads\/image-215-300x163.png 300w\" sizes=\"(max-width: 478px) 100vw, 478px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u5f97\u5230\u8fd9\u4e9b\u91c7\u6837\u70b9\u4e4b\u540e\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u5bf9\u91c7\u6837\u70b9\u8fdb\u884c\u6743\u91cd\u5206\u914d\u5904\u7406\u3002\u6bd4\u5982\u5728202\u7684\u8bfe\u7a0b\u4e0a\u95eb\u8001\u5e08\u63d0\u5230\u53ef\u4ee5\u6839\u636e\u539f\u59cb\u50cf\u7d20\u7684\u8ddd\u79bb\u8bbe\u7f6e\u4e0d\u540c\u7684\u6743\u91cd\uff0c\u66f4\u8fdc\u7684\u91c7\u6837\u70b9\u53ef\u80fd\u4f1a\u88ab\u8d4b\u4e88\u8f83\u4f4e\u7684\u6743\u91cd\uff0c\u4f46\u9879\u76ee\u4e2d\u4e0d\u6d89\u53ca\u8fd9\u90e8\u5206\u7684\u4ee3\u7801\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">PCSS<\/h2>\n\n\n\n<p>\u9996\u5148\u627e\u5230Shadow Map\u4e2d\u4efb\u610f\u4e00\u5904uv\u5750\u6807\u7684AVG Blocker Depth\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 findBlocker(sampler2D shadowMap,vec2 uv,float z_shadingPoint){\n  float count=0., depth_sum=0., depthOnShadowMap, is_block;\n  vec2 nCoords;\n  for(int i=0;i<BLOCKER_SEARCH_NUM_SAMPLES;i++){\n    nCoords=uv+BLOKER_SIZE*poissonDisk[i];\n\n    depthOnShadowMap=unpack(texture2D(shadowMap,nCoords));\n    if(abs(depthOnShadowMap) < EPS)depthOnShadowMap=1.;\n    \/\/ step\u51fd\u6570\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u503c\u3002\n    is_block=step(depthOnShadowMap,z_shadingPoint-EPS);\n    count+=is_block;\n    depth_sum+=is_block*depthOnShadowMap;\n  }\n  if(count<EPS)\n    return z_shadingPoint;\n  return depth_sum\/count;\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\">findBlocker<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">sampler2D<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9\">vec2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">uv<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">z_shadingPoint<\/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\">count<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #B48EAD\">0.<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">depth_sum<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #B48EAD\">0.<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">depthOnShadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">is_block<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">vec2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">nCoords<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><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: #81A1C1\">=<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9\">BLOCKER_SEARCH_NUM_SAMPLES<\/span><span style=\"color: #81A1C1\">;<\/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\">nCoords<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9\">uv<\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9\">BLOKER_SIZE<\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9\">poissonDisk<\/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>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">depthOnShadowMap<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #88C0D0\">unpack<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #88C0D0\">texture2D<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9\">nCoords<\/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\">if<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #88C0D0\">abs<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">depthOnShadowMap<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">EPS<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #D8DEE9\">depthOnShadowMap<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #B48EAD\">1.<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">    <\/span><span style=\"color: #616E88\">\/\/ step\u51fd\u6570\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u503c\u3002<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">is_block<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #88C0D0\">step<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">depthOnShadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9\">z_shadingPoint<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">EPS<\/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\">count<\/span><span style=\"color: #81A1C1\">+=<\/span><span style=\"color: #D8DEE9\">is_block<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">depth_sum<\/span><span style=\"color: #81A1C1\">+=<\/span><span style=\"color: #D8DEE9\">is_block<\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9\">depthOnShadowMap<\/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\">if<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">count<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9\">EPS<\/span><span style=\"color: #D8DEE9FF\">)<\/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\">z_shadingPoint<\/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\">depth_sum<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">count<\/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>\u4e09\u6b65\u8d70\uff0c\u8fd9\u91cc\u4e0d\u518d\u8d58\u8ff0\uff0c\u8ddf\u7740\u7406\u8bba\u516c\u5f0f\u8d70\u90fd\u4e0d\u592a\u96be\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-216.png\" alt=\"\" class=\"wp-image-1340 lazyload\"\/><noscript><img decoding=\"async\" width=\"614\" height=\"798\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-216.png\" alt=\"\" class=\"wp-image-1340 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-216.png 614w, https:\/\/remoooo.com\/wp-content\/uploads\/image-216-231x300.png 231w\" sizes=\"(max-width: 614px) 100vw, 614px\" \/><\/noscript><figcaption class=\"wp-element-caption\">image-20230731142003749<\/figcaption><\/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=\"float PCSS(sampler2D shadowMap,vec4 shadingPoint){\n  poissonDiskSamples(shadingPoint.xy);\n  float z_shadingPoint=shadingPoint.z;\n  \/\/ STEP 1: avgblocker depth\n  float avgblockerdep=findBlocker(shadowMap,shadingPoint.xy,z_shadingPoint);\n  if(abs(avgblockerdep - z_shadingPoint) <= EPS) \/\/ No Blocker\n    return 1.;\n\n  \/\/ STEP 2: penumbra size\n  float dBlocker=avgblockerdep,dReceiver=z_shadingPoint-avgblockerdep;\n  float wPenumbra=min(LWIDTH*dReceiver\/dBlocker,MAX_PENUMBRA);\n\n  \/\/ STEP 3: filtering\n  float _sum=0.,depthOnShadowMap,vis;\n  vec2 nCoords;\n  for(int i=0;i<NUM_SAMPLES;i++){\n    nCoords=shadingPoint.xy+wPenumbra*poissonDisk[i];\n\n    depthOnShadowMap=unpack(texture2D(shadowMap,nCoords));\n    if(abs(depthOnShadowMap)<1e-5)depthOnShadowMap=1.;\n\n    vis=step(z_shadingPoint-EPS,depthOnShadowMap);\n    _sum+=vis;\n  }\n\n  return _sum\/float(NUM_SAMPLES);\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\">PCSS<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">sampler2D<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9\">vec4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">shadingPoint<\/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\">poissonDiskSamples<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xy<\/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\">z_shadingPoint<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9\">shadingPoint<\/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 style=\"color: #616E88\">\/\/ STEP 1: avgblocker depth<\/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\">avgblockerdep<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #88C0D0\">findBlocker<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xy<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9\">z_shadingPoint<\/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\">if<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #88C0D0\">abs<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">avgblockerdep<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">z_shadingPoint<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">&lt;=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">EPS<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #616E88\">\/\/ No Blocker<\/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: #B48EAD\">1.<\/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\">\/\/ STEP 2: penumbra size<\/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\">dBlocker<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9\">avgblockerdep<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9\">dReceiver<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9\">z_shadingPoint<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">avgblockerdep<\/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\">wPenumbra<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #88C0D0\">min<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">LWIDTH<\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9\">dReceiver<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">dBlocker<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9\">MAX_PENUMBRA<\/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\">\/\/ STEP 3: filtering<\/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\">_sum<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #B48EAD\">0.<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9\">depthOnShadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9\">vis<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #D8DEE9\">vec2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">nCoords<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><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: #81A1C1\">=<\/span><span style=\"color: #B48EAD\">0<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9\">i<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9\">NUM_SAMPLES<\/span><span style=\"color: #81A1C1\">;<\/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\">nCoords<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9\">shadingPoint<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">xy<\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9\">wPenumbra<\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9\">poissonDisk<\/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>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">depthOnShadowMap<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #88C0D0\">unpack<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #88C0D0\">texture2D<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">shadowMap<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9\">nCoords<\/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\">if<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #88C0D0\">abs<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">depthOnShadowMap<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #B48EAD\">1e-5<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #D8DEE9\">depthOnShadowMap<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #B48EAD\">1.<\/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\">vis<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #88C0D0\">step<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">z_shadingPoint<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">EPS<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9\">depthOnShadowMap<\/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\">_sum<\/span><span style=\"color: #81A1C1\">+=<\/span><span style=\"color: #D8DEE9\">vis<\/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>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #81A1C1\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">_sum<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #88C0D0\">float<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">NUM_SAMPLES<\/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<h2 class=\"wp-block-heading\">\u6846\u67b6\u90e8\u5206\u89e3\u6790<\/h2>\n\n\n\n<p>\u8fd9\u4e00\u90e8\u5206\u5c5e\u4e8e\u662f\u5728\u6211\u968f\u4fbf\u7ffb\u9605\u4ee3\u7801\u7684\u65f6\u5019\u5199\u4e0b\u7684\u6ce8\u91ca\uff0c\u5728\u8fd9\u91cc\u7a0d\u5fae\u6574\u7406\u4e86\u4e00\u4e0b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">loadShader.js<\/h3>\n\n\n\n<p>\u867d\u7136\u8fd9\u4e2a\u6587\u4ef6\u4e2d\u4e24\u4e2a\u51fd\u6570\u90fd\u662f\u52a0\u8f7dglsl\u6587\u4ef6\uff0c\u4f46\u662f\u540e\u8005\u7684getShaderString(filename)\u51fd\u6570\u66f4\u52a0\u7b80\u6d01\u9ad8\u7ea7\u3002\u8fd9\u4e3b\u8981\u4f53\u73b0\u5728\u524d\u8005\u8fd4\u56de\u7684\u662fPromise\u5bf9\u8c61\uff0c\u540e\u8005\u76f4\u63a5\u8fd4\u56de\u6587\u4ef6\u5185\u5bb9\u3002\u5173\u4e8ePromise\u7684\u5185\u5bb9\u53ef\u4ee5\u770b\u672c\u6587\u7684 <strong>\u9644\u5f551.3 &#8211; JS\u7684Promise\u7b80\u5355\u7528\u6cd5<\/strong> \uff0c\u5173\u4e8easync await\u7684\u5185\u5bb9\u53ef\u4ee5\u770b\u672c\u6587 <strong>\u9644\u5f551.4 &#8211; async await\u4ecb\u7ecd<\/strong>\uff0c\u5173\u4e8e.then()\u7684\u7528\u6cd5\u53ef\u4ee5\u67e5\u770b <strong>\u9644\u5f551.5 &#8211; \u5173\u4e8e.then<\/strong> \u3002<\/p>\n\n\n\n<p>\u4e13\u4e1a\u4e00\u70b9\u7684\u8bf4\u6cd5\u5c31\u662f\uff0c\u8fd9\u4e24\u4e2a\u51fd\u6570\u63d0\u4f9b\u4e86\u4e0d\u540c\u7ea7\u522b\u7684\u62bd\u8c61\u3002\u524d\u8005\u63d0\u4f9b\u4e86\u76f4\u63a5\u52a0\u8f7d\u6587\u4ef6\u7684\u539f\u5b50\u7ea7\u522b\u80fd\u529b\uff0c\u62e5\u6709\u66f4\u7ec6\u7c92\u5ea6\u7684\u63a7\u5236\uff0c\u800c\u540e\u8005\u66f4\u52a0\u7b80\u6d01\u4e0e\u65b9\u4fbf\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6dfb\u52a0\u7269\u4f53\u5e73\u79fb\u6548\u679c<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u63a7\u5236\u5668\u6dfb\u52a0\u5230GUI\u4e0a<\/h3>\n\n\n\n<p>\u6bcf\u4e00\u5e27\u90fd\u8981\u8ba1\u7b97\u9634\u5f71\u7684\u6d88\u8017\u662f\u5f88\u5927\u7684\uff0c\u8fd9\u91cc\u6211\u624b\u52a8\u521b\u5efa\u5149\u6e90\u63a7\u5236\u5668\uff0c\u624b\u52a8\u8c03\u8282\u662f\u5426\u9700\u8981\u6bcf\u4e00\u5e27\u90fd\u8ba1\u7b97\u4e00\u6b21\u9634\u5f71\u3002\u6b64\u5916\uff0c\u5f53Light Moveable\u53d6\u6d88\u52fe\u9009\u7684\u65f6\u5019\u7981\u6b62\u7528\u6237\u6539\u53d8\u5149\u6e90\u4f4d\u7f6e\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-214.png\" alt=\"\" class=\"wp-image-1338 lazyload\"\/><noscript><img decoding=\"async\" width=\"316\" height=\"138\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-214.png\" alt=\"\" class=\"wp-image-1338 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-214.png 316w, https:\/\/remoooo.com\/wp-content\/uploads\/image-214-300x131.png 300w\" sizes=\"(max-width: 316px) 100vw, 316px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u52fe\u9009\u4e0aLight Moveable\u540e\uff0c\u51fa\u73b0lightPos\u9009\u9879\u6846\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-217.png\" alt=\"\" class=\"wp-image-1341 lazyload\"\/><noscript><img decoding=\"async\" width=\"606\" height=\"410\" src=\"https:\/\/\u80a5\u80a5.com\/wp-content\/uploads\/image-217.png\" alt=\"\" class=\"wp-image-1341 lazyload\" srcset=\"https:\/\/remoooo.com\/wp-content\/uploads\/image-217.png 606w, https:\/\/remoooo.com\/wp-content\/uploads\/image-217-300x203.png 300w\" sizes=\"(max-width: 606px) 100vw, 606px\" \/><\/noscript><\/figure>\n\n\n\n<p>\u5177\u4f53\u4ee3\u7801\u5b9e\u73b0\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=\"\/\/ engine.js\n\/\/ Add lights\n\/\/ light - is open shadow map == true\nlet lightPos = [0, 80, 80];\nlet focalPoint = [0, 0, 0]; \/\/ \u5b9a\u5411\u5149\u805a\u7126\u65b9\u5411(\u8d77\u70b9\u662flightPos)\nlet lightUp = [0, 1, 0]\nconst lightGUI = {\/\/ \u5149\u6e90\u79fb\u52a8\u63a7\u5236\u5668\uff0c\u5982\u679c\u4e0d\u52fe\u9009\uff0c\u5219\u4e0d\u4f1a\u91cd\u65b0\u8ba1\u7b97\u9634\u5f71\u3002\n    LightMoveable: false,\n    lightPos: lightPos\n};\n...\nfunction createGUI() {\n    const gui = new dat.gui.GUI();\n    const panelModel = gui.addFolder('Light properties');\n    const panelCamera = gui.addFolder(&quot;OBJ properties&quot;);\n    const lightMoveableController = panelModel.add(lightGUI, 'LightMoveable').name(&quot;Light Moveable&quot;);\n    const arrayFolder = panelModel.addFolder('lightPos');\n    arrayFolder.add(lightGUI.lightPos, '0').min(-10).max( 10).step(1).name(&quot;light Pos X&quot;);\n    arrayFolder.add(lightGUI.lightPos, '1').min( 70).max( 90).step(1).name(&quot;light Pos Y&quot;);\n    arrayFolder.add(lightGUI.lightPos, '2').min( 70).max( 90).step(1).name(&quot;light Pos Z&quot;);\n    arrayFolder.domElement.style.display = lightGUI.LightMoveable ? '' : 'none';\n    lightMoveableController.onChange(function(value) {\n        arrayFolder.domElement.style.display = value ? '' : 'none';\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\">\/\/ engine.js<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ Add lights<\/span><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">\/\/ light - is open shadow map == true<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">let<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lightPos<\/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: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">80<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">80<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">let<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">focalPoint<\/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: #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\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #616E88\">\/\/ \u5b9a\u5411\u5149\u805a\u7126\u65b9\u5411(\u8d77\u70b9\u662flightPos)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">let<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lightUp<\/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: #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\">0<\/span><span style=\"color: #D8DEE9FF\">]<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lightGUI<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">{<\/span><span style=\"color: #616E88\">\/\/ \u5149\u6e90\u79fb\u52a8\u63a7\u5236\u5668\uff0c\u5982\u679c\u4e0d\u52fe\u9009\uff0c\u5219\u4e0d\u4f1a\u91cd\u65b0\u8ba1\u7b97\u9634\u5f71\u3002<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #88C0D0\">LightMoveable<\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">false<\/span><span style=\"color: #ECEFF4\">,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #88C0D0\">lightPos<\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lightPos<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">...<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">function<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">createGUI<\/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\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gui<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">new<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">dat<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">gui<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">GUI<\/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\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">panelModel<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gui<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">addFolder<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">Light properties<\/span><span style=\"color: #ECEFF4\">&#39;<\/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\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">panelCamera<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gui<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">addFolder<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">OBJ properties<\/span><span style=\"color: #ECEFF4\">&quot;<\/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\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lightMoveableController<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">panelModel<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">add<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">lightGUI<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">LightMoveable<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">name<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Light Moveable<\/span><span style=\"color: #ECEFF4\">&quot;<\/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\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">arrayFolder<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">panelModel<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">addFolder<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">lightPos<\/span><span style=\"color: #ECEFF4\">&#39;<\/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\">arrayFolder<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">add<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">lightGUI<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">lightPos<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">0<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">min<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #B48EAD\">10<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">max<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #B48EAD\">10<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">step<\/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: #88C0D0\">name<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">light Pos X<\/span><span style=\"color: #ECEFF4\">&quot;<\/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\">arrayFolder<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">add<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">lightGUI<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">lightPos<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">1<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">min<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #B48EAD\">70<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">max<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #B48EAD\">90<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">step<\/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: #88C0D0\">name<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">light Pos Y<\/span><span style=\"color: #ECEFF4\">&quot;<\/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\">arrayFolder<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">add<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">lightGUI<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">lightPos<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">2<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">min<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #B48EAD\">70<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">max<\/span><span style=\"color: #D8DEE9FF\">( <\/span><span style=\"color: #B48EAD\">90<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">step<\/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: #88C0D0\">name<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">light Pos Z<\/span><span style=\"color: #ECEFF4\">&quot;<\/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\">arrayFolder<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">domElement<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">style<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">display<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">lightGUI<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">LightMoveable<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">?<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;&#39;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">none<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">lightMoveableController<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">onChange<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">function<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9\">value<\/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: #D8DEE9\">arrayFolder<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">domElement<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">style<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">display<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">value<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">?<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;&#39;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">:<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">none<\/span><span style=\"color: #ECEFF4\">&#39;<\/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\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u9644\u5f551.1<\/h2>\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=\"import numpy as np\nimport matplotlib.pyplot as plt\n\ndef simulate_poisson_disk_samples(random_seed, num_samples=100, num_rings=2):\n    PI2 = 2 * np.pi\n    ANGLE_STEP = PI2 * num_rings \/ num_samples\n    INV_NUM_SAMPLES = 1.0 \/ num_samples\n\n    # Initial angle and radius\n    angle = random_seed * PI2\n    radius = INV_NUM_SAMPLES\n    radius_step = radius\n\n    x_vals = []\n    y_vals = []\n\n    for _ in range(num_samples):\n        x = np.cos(angle) * pow(radius, 0.1)\n        y = np.sin(angle) * pow(radius, 0.1)\n\n        x_vals.append(x)\n        y_vals.append(y)\n\n        radius += radius_step\n        angle += ANGLE_STEP\n\n    return x_vals, y_vals\n\nplt.figure(figsize=(8, 8))\n\n# Generate and plot the spiral 5 times with different random seeds\nfor _ in range(50):\n    random_seed = np.random.rand()\n    x_vals, y_vals = simulate_poisson_disk_samples(random_seed)\n    plt.plot(x_vals, y_vals, '-o', markersize=5, linewidth=2)\n\nplt.title(&quot;Poisson Disk Samples&quot;)\nplt.axis('on')\nplt.gca().set_aspect('equal', adjustable='box')\nplt.show()\" 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\">import<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">numpy<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">as<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">np<\/span><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">import<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">matplotlib<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">pyplot<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">as<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">plt<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">def<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">simulate_poisson_disk_samples<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">random_seed<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">num_samples<\/span><span style=\"color: #D8DEE9FF\">=100<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">num_rings<\/span><span style=\"color: #D8DEE9FF\">=2):<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">PI2<\/span><span style=\"color: #D8DEE9FF\"> = 2 <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">np<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">pi<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">ANGLE_STEP<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">PI2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">num_rings<\/span><span style=\"color: #D8DEE9FF\"> \/ <\/span><span style=\"color: #8FBCBB\">num_samples<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">INV_NUM_SAMPLES<\/span><span style=\"color: #D8DEE9FF\"> = 1.0 \/ <\/span><span style=\"color: #8FBCBB\">num_samples<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    # <\/span><span style=\"color: #8FBCBB\">Initial<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">angle<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">and<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">radius<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">angle<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">random_seed<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">PI2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">radius<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">INV_NUM_SAMPLES<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">radius_step<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">radius<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">x_vals<\/span><span style=\"color: #D8DEE9FF\"> = []<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">y_vals<\/span><span style=\"color: #D8DEE9FF\"> = []<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">for<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">_<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">in<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">range<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">num_samples<\/span><span style=\"color: #D8DEE9FF\">):<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #8FBCBB\">x<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">np<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">cos<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">angle<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">pow<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">radius<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> 0.1)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #8FBCBB\">y<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">np<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">sin<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">angle<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">pow<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">radius<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> 0.1)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #8FBCBB\">x_vals<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">append<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">x<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #8FBCBB\">y_vals<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">append<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">y<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #8FBCBB\">radius<\/span><span style=\"color: #D8DEE9FF\"> += <\/span><span style=\"color: #8FBCBB\">radius_step<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #8FBCBB\">angle<\/span><span style=\"color: #D8DEE9FF\"> += <\/span><span style=\"color: #8FBCBB\">ANGLE_STEP<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">x_vals<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">y_vals<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">plt<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">figure<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">figsize<\/span><span style=\"color: #D8DEE9FF\">=(8<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> 8))<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\"># <\/span><span style=\"color: #8FBCBB\">Generate<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">and<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">plot<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">the<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">spiral<\/span><span style=\"color: #D8DEE9FF\"> 5 <\/span><span style=\"color: #8FBCBB\">times<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">with<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">different<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">random<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">seeds<\/span><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">for<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">_<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">in<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">range<\/span><span style=\"color: #D8DEE9FF\">(50):<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">random_seed<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">np<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">random<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">rand<\/span><span style=\"color: #D8DEE9FF\">()<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">x_vals<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">y_vals<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">simulate_poisson_disk_samples<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">random_seed<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">plt<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">plot<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">x_vals<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">y_vals<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">-o<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">markersize<\/span><span style=\"color: #D8DEE9FF\">=5<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">linewidth<\/span><span style=\"color: #D8DEE9FF\">=2)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">plt<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">title<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Poisson Disk Samples<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">plt<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">axis<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">on<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">plt<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">gca<\/span><span style=\"color: #D8DEE9FF\">().<\/span><span style=\"color: #8FBCBB\">set_aspect<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">equal<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">adjustable<\/span><span style=\"color: #D8DEE9FF\">=<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">box<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">plt<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">show<\/span><span style=\"color: #D8DEE9FF\">()<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u9644\u5f551.2 &#8211; \u6cca\u677e\u91c7\u6837\u70b9\u540e\u5904\u7406\u52a8\u753b\u4ee3\u7801<\/h2>\n\n\n\n<p>\u8bf4\u660e\uff1a<strong>\u9644\u5f551.2<\/strong> \u7684\u4ee3\u7801\u76f4\u63a5\u57fa\u4e8e <strong>\u9644\u5f551.1<\/strong> \u4fee\u6539\u800c\u6210\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=\"import numpy as np\nimport matplotlib.pyplot as plt\nfrom matplotlib.animation import FuncAnimation\n\ndef simulate_poisson_disk_samples_with_exponent(random_seed, exponent, num_samples=100, num_rings=2):\n    PI2 = 2 * np.pi\n    ANGLE_STEP = PI2 * num_rings \/ num_samples\n    INV_NUM_SAMPLES = 1.0 \/ num_samples\n\n    angle = random_seed * PI2\n    radius = INV_NUM_SAMPLES\n    radius_step = radius\n\n    x_vals = []\n    y_vals = []\n\n    for _ in range(num_samples):\n        x = np.cos(angle) * pow(radius, exponent)\n        y = np.sin(angle) * pow(radius, exponent)\n        x_vals.append(x)\n        y_vals.append(y)\n        radius += radius_step\n        angle += ANGLE_STEP\n\n    return x_vals, y_vals\n\nfig, ax = plt.subplots(figsize=(8, 8))\nax.axis('on')\nax.set_xlim(-1, 1)\nax.set_ylim(-1, 1)\nax.set_aspect('equal', adjustable='box')\n\nlines = [ax.plot([], [], '-o', markersize=5, linewidth=2)[0] for _ in range(50)]\nexponent = 0.2\n\ndef init():\n    for line in lines:\n        line.set_data([], [])\n    return lines\n\ndef update(frame):\n    global exponent\n    exponent += 0.005  # Increment to adjust the exponent\n    for line in lines:\n        random_seed = np.random.rand()\n        x_vals, y_vals = simulate_poisson_disk_samples_with_exponent(random_seed, exponent)\n        # plt.title(exponent +&quot;Poisson Disk Samples&quot;)\n        line.set_data(x_vals, y_vals)\n    plt.title(f&quot;{exponent:.3f} Poisson Disk Samples&quot;)\n    return lines\n\nani = FuncAnimation(fig, update, frames=180, init_func=init, blit=False)\n\nani.save('animation.mp4', writer='ffmpeg', fps=12)\n\n# plt.show()\" 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\">import<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">numpy<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">as<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">np<\/span><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">import<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">matplotlib<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">pyplot<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">as<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">plt<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">from<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">matplotlib<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">animation<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">import<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">FuncAnimation<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">def<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">simulate_poisson_disk_samples_with_exponent<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">random_seed<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">exponent<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">num_samples<\/span><span style=\"color: #D8DEE9FF\">=100<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">num_rings<\/span><span style=\"color: #D8DEE9FF\">=2):<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">PI2<\/span><span style=\"color: #D8DEE9FF\"> = 2 <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">np<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">pi<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">ANGLE_STEP<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">PI2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">num_rings<\/span><span style=\"color: #D8DEE9FF\"> \/ <\/span><span style=\"color: #8FBCBB\">num_samples<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">INV_NUM_SAMPLES<\/span><span style=\"color: #D8DEE9FF\"> = 1.0 \/ <\/span><span style=\"color: #8FBCBB\">num_samples<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">angle<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">random_seed<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">PI2<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">radius<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">INV_NUM_SAMPLES<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">radius_step<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">radius<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">x_vals<\/span><span style=\"color: #D8DEE9FF\"> = []<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">y_vals<\/span><span style=\"color: #D8DEE9FF\"> = []<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">for<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">_<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">in<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">range<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">num_samples<\/span><span style=\"color: #D8DEE9FF\">):<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #8FBCBB\">x<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">np<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">cos<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">angle<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">pow<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">radius<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">exponent<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #8FBCBB\">y<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">np<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">sin<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">angle<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">pow<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">radius<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">exponent<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #8FBCBB\">x_vals<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">append<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">x<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #8FBCBB\">y_vals<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">append<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">y<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #8FBCBB\">radius<\/span><span style=\"color: #D8DEE9FF\"> += <\/span><span style=\"color: #8FBCBB\">radius_step<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #8FBCBB\">angle<\/span><span style=\"color: #D8DEE9FF\"> += <\/span><span style=\"color: #8FBCBB\">ANGLE_STEP<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">x_vals<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">y_vals<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">fig<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">ax<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">plt<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">subplots<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">figsize<\/span><span style=\"color: #D8DEE9FF\">=(8<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> 8))<\/span><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">ax<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">axis<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">on<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">ax<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">set_xlim<\/span><span style=\"color: #D8DEE9FF\">(-1<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> 1)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">ax<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">set_ylim<\/span><span style=\"color: #D8DEE9FF\">(-1<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> 1)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">ax<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">set_aspect<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">equal<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">adjustable<\/span><span style=\"color: #D8DEE9FF\">=<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">box<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">lines<\/span><span style=\"color: #D8DEE9FF\"> = [<\/span><span style=\"color: #8FBCBB\">ax<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">plot<\/span><span style=\"color: #D8DEE9FF\">([]<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> []<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">-o<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">markersize<\/span><span style=\"color: #D8DEE9FF\">=5<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">linewidth<\/span><span style=\"color: #D8DEE9FF\">=2)[0] <\/span><span style=\"color: #8FBCBB\">for<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">_<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">in<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">range<\/span><span style=\"color: #D8DEE9FF\">(50)]<\/span><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">exponent<\/span><span style=\"color: #D8DEE9FF\"> = 0.2<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">def<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">init<\/span><span style=\"color: #D8DEE9FF\">():<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">for<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">line<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">in<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">lines<\/span><span style=\"color: #D8DEE9FF\">:<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #8FBCBB\">line<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">set_data<\/span><span style=\"color: #D8DEE9FF\">([]<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> [])<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">lines<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">def<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">update<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">frame<\/span><span style=\"color: #D8DEE9FF\">):<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">global<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">exponent<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">exponent<\/span><span style=\"color: #D8DEE9FF\"> += 0.005  # <\/span><span style=\"color: #8FBCBB\">Increment<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">to<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">adjust<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">the<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">exponent<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">for<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">line<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">in<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">lines<\/span><span style=\"color: #D8DEE9FF\">:<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #8FBCBB\">random_seed<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">np<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">random<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">rand<\/span><span style=\"color: #D8DEE9FF\">()<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #8FBCBB\">x_vals<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">y_vals<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">simulate_poisson_disk_samples_with_exponent<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">random_seed<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">exponent<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        # <\/span><span style=\"color: #8FBCBB\">plt<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">title<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">exponent<\/span><span style=\"color: #D8DEE9FF\"> +<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Poisson Disk Samples<\/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: #8FBCBB\">line<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">set_data<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">x_vals<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">y_vals<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #8FBCBB\">plt<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">title<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">f<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">{exponent:.3f} Poisson Disk Samples<\/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: #8FBCBB\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">lines<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">ani<\/span><span style=\"color: #D8DEE9FF\"> = <\/span><span style=\"color: #8FBCBB\">FuncAnimation<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #8FBCBB\">fig<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">update<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">frames<\/span><span style=\"color: #D8DEE9FF\">=180<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">init_func<\/span><span style=\"color: #D8DEE9FF\">=<\/span><span style=\"color: #8FBCBB\">init<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">blit<\/span><span style=\"color: #D8DEE9FF\">=<\/span><span style=\"color: #8FBCBB\">False<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #8FBCBB\">ani<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">save<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">animation.mp4<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">writer<\/span><span style=\"color: #D8DEE9FF\">=<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">ffmpeg<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">fps<\/span><span style=\"color: #D8DEE9FF\">=12)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\"># <\/span><span style=\"color: #8FBCBB\">plt<\/span><span style=\"color: #D8DEE9FF\">.<\/span><span style=\"color: #8FBCBB\">show<\/span><span style=\"color: #D8DEE9FF\">()<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u9644\u5f551.3 &#8211; JS\u7684Promise\u7b80\u5355\u7528\u6cd5<\/h2>\n\n\n\n<p>\u5173\u4e8ePromise\u7684\u7528\u6cd5\u8fd9\u91cc\u7ed9\u51fa\u4e00\u4e2a\u4f8b\u5b50\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=\"function delay(milliseconds) {\n    return new Promise(function(resolve, reject) {\n        if (milliseconds < 0) {\n            reject('Delay time cannot be negative!');\n        } else {\n            setTimeout(function() {\n                resolve('Waited for ' + milliseconds + ' milliseconds!');\n            }, milliseconds);\n        }\n    });\n}\n\n\/\/ \u4f7f\u7528\u793a\u4f8b\ndelay(2000).then(function(message) {\n    console.log(message);  \/\/ \u4e24\u79d2\u540e\u8f93\u51fa\uff1a&quot;Waited for 2000 milliseconds!&quot;\n}).catch(function(error) {\n    console.log('Error: ' + error);\n});\n\n\/\/ \u9519\u8bef\u793a\u4f8b\ndelay(-1000).then(function(message) {\n    console.log(message);\n}).catch(function(error) {\n    console.log('Error: ' + error);  \/\/ \u7acb\u5373\u8f93\u51fa\uff1a&quot;Error: Delay time cannot be negative!&quot;\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\">function<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">delay<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9\">milliseconds<\/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\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">new<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">Promise<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">function<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9\">resolve<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">reject<\/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\">if<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">milliseconds<\/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: #D8DEE9FF\">) <\/span><span style=\"color: #ECEFF4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">            <\/span><span style=\"color: #88C0D0\">reject<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">Delay time cannot be negative!<\/span><span style=\"color: #ECEFF4\">&#39;<\/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: #88C0D0\">setTimeout<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">function<\/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: #88C0D0\">resolve<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">Waited for <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">milliseconds<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\"> milliseconds!<\/span><span style=\"color: #ECEFF4\">&#39;<\/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: #D8DEE9\">milliseconds<\/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: #ECEFF4\">}<\/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\">\/\/ \u4f7f\u7528\u793a\u4f8b<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">delay<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">2000<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">then<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">function<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9\">message<\/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: #D8DEE9\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">log<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">message<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #616E88\">\/\/ \u4e24\u79d2\u540e\u8f93\u51fa\uff1a&quot;Waited for 2000 milliseconds!&quot;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">catch<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">function<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9\">error<\/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: #D8DEE9\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">log<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">Error: <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">error<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/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\">\/\/ \u9519\u8bef\u793a\u4f8b<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">delay<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #B48EAD\">1000<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">then<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">function<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9\">message<\/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: #D8DEE9\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">log<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">message<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">catch<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">function<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9\">error<\/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: #D8DEE9\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">log<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">Error: <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">error<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #616E88\">\/\/ \u7acb\u5373\u8f93\u51fa\uff1a&quot;Error: Delay time cannot be negative!&quot;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u4f7f\u7528Promise\u7684\u56fa\u5b9a\u64cd\u4f5c\u662f\u5199\u4e00\u4e2aPromise\u6784\u9020\u51fd\u6570\uff0c\u8fd9\u4e2a\u51fd\u6570\u6709\u4e24\u4e2a\u53c2\u6570\uff08\u53c2\u6570\u4e5f\u662f\u4e00\u4e2a\u51fd\u6570\uff09\uff1aresolve\u548creject\u3002\u8fd9\u6837\u53ef\u4ee5\u6784\u5efa\u9519\u8bef\u5904\u7406\u7684\u5206\u652f\uff0c\u6bd4\u5982\u5728\u8fd9\u4e2a\u6848\u4f8b\u4e2d\uff0c\u8f93\u5165\u7684\u5185\u5bb9\u4e0d\u6ee1\u8db3\u9700\u6c42\uff0c\u5219\u53ef\u4ee5\u8c03\u7528reject\u8fdb\u5165\u62d2\u7eddPromise\u5206\u652f\u3002<\/p>\n\n\n\n<p>\u6bd4\u65b9\u8bf4\u73b0\u5728\u8fdb\u5165reject\u5206\u652f\uff0creject(<strong>XXX<\/strong>)\u4e2d\u7684XXX\u5c31\u4f20\u5230\u4e86\u4e0b\u9762then(function(<strong>XXX<\/strong>))\u7684XXX\u4e2d\u3002<\/p>\n\n\n\n<p>\u603b\u7ed3\u4e00\u4e0b\uff0cPromise\u662fJS\u4e2d\u7684\u4e00\u4e2a\u5bf9\u8c61\uff0c\u6838\u5fc3\u4ef7\u503c\u5728\u4e8e\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd<strong>\u975e\u5e38\u4f18\u96c5<\/strong>\u4e0e<strong>\u7edf\u4e00<\/strong>\u7684\u65b9\u5f0f\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\u4e0e\u94fe\u5f0f\u64cd\u4f5c\uff0c\u53e6\u5916\u8fd8\u63d0\u4f9b\u4e86\u9519\u8bef\u5904\u7406\u7684\u529f\u80fd\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u901a\u8fc7Promise\u7684.then()\u65b9\u6cd5\uff0c\u4f60\u53ef\u4ee5\u786e\u4fdd\u4e00\u4e2a\u5f02\u6b65\u64cd\u4f5c\u5b8c\u6210\u540e\u518d\u6267\u884c\u53e6\u4e00\u4e2a\u5f02\u6b65\u64cd\u4f5c\u3002<\/li>\n\n\n\n<li>\u901a\u8fc7 .catch() \u65b9\u6cd5\u53ef\u4ee5\u5904\u7406\u9519\u8bef\uff0c\u4e0d\u9700\u8981\u4e3a\u6bcf\u4e2a\u5f02\u6b65\u56de\u8c03\u8bbe\u7f6e\u9519\u8bef\u5904\u7406\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u9644\u5f551.4 &#8211; async\/await<\/h2>\n\n\n\n<p>async\/await\u662fES8\u5f15\u5165\u7684feature\uff0c\u65e8\u5728\u5316\u7b80\u4f7f\u7528Promise\u7684\u6b65\u9aa4\u3002<\/p>\n\n\n\n<p>\u76f4\u63a5\u770b\u4f8b\u5b50\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=\"async function asyncFunction() {\n    return &quot;Hello from async function!&quot;;\n}\n\nasyncFunction().then(result =&gt; console.log(result));  \/\/ \u8f93\u51fa\uff1aHello from async function!\" 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\">async<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">function<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">asyncFunction<\/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\">return<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">Hello from async function!<\/span><span style=\"color: #ECEFF4\">&quot;<\/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: #88C0D0\">asyncFunction<\/span><span style=\"color: #D8DEE9FF\">()<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">then<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">result<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">log<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">result<\/span><span style=\"color: #D8DEE9FF\">))<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #616E88\">\/\/ \u8f93\u51fa\uff1aHello from async function!<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u51fd\u6570\u52a0\u4e0a\u4e86async\u4e4b\u540e\uff0c\u4f1a\u9690\u5f0f\u7684\u8fd4\u56de\u4e00\u4e2aPromise\u5bf9\u8c61\u3002<\/p>\n\n\n\n<p>await \u5173\u952e\u5b57\u53ea\u80fd\u5728 async \u51fd\u6570\u5185\u90e8\u4f7f\u7528\u3002\u5b83\u4f1a\u201c\u6682\u505c\u201d\u51fd\u6570\u7684\u6267\u884c\uff0c\u76f4\u5230 Promise \u5b8c\u6210\uff08\u89e3\u51b3\u6216\u62d2\u7edd\uff09\u3002\u53e6\u5916\u4f60\u4e5f\u53ef\u4ee5\u7528try\/catch\u6355\u83b7reject\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=\"async function handleAsyncOperation() {\n    try {\n        const result = await maybeFails();\/\/ \n        console.log(result);\/\/ \u5982\u679c Promise \u88ab\u89e3\u51b3\uff0c\u8fd9\u91cc\u5c06\u8f93\u51fa &quot;Success!&quot;\n    } catch (error) {\n        console.error('An error occurred:', error);\/\/ \u5982\u679c Promise \u88ab\u62d2\u7edd\uff0c\u8fd9\u91cc\u5c06\u8f93\u51fa &quot;An error occurred: Failure!&quot;\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\">async<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">function<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">handleAsyncOperation<\/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\">try<\/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\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">result<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">await<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">maybeFails<\/span><span style=\"color: #D8DEE9FF\">()<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #616E88\">\/\/ <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #D8DEE9\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">log<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">result<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #616E88\">\/\/ \u5982\u679c Promise \u88ab\u89e3\u51b3\uff0c\u8fd9\u91cc\u5c06\u8f93\u51fa &quot;Success!&quot;<\/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\">catch<\/span><span style=\"color: #D8DEE9FF\"> (<\/span><span style=\"color: #D8DEE9\">error<\/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\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">error<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">An error occurred:<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">error<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #616E88\">\/\/ \u5982\u679c Promise \u88ab\u62d2\u7edd\uff0c\u8fd9\u91cc\u5c06\u8f93\u51fa &quot;An error occurred: Failure!&quot;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #ECEFF4\">}<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u8fd9\u91cc\u7684&#8221;\u6682\u505c&#8221;\u6307\u7684\u662f\u6682\u505c\u4e86\u8be5<strong>\u7279\u5b9a\u7684\u5f02\u6b65\u51fd\u6570<\/strong>\uff0c\u800c\u4e0d\u662f\u6574\u4e2a\u5e94\u7528\u6216JavaScript\u7684\u4e8b\u4ef6\u5faa\u73af\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u5173\u4e8eawait\u5982\u4f55\u5de5\u4f5c\u7684\u7b80\u5316\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5f53\u6267\u884c\u5230await\u5173\u952e\u5b57\u65f6\uff0c<strong>\u8be5\u5f02\u6b65\u51fd\u6570<\/strong>\u7684\u6267\u884c\u6682\u505c\u3002<\/li>\n\n\n\n<li>\u63a7\u5236\u6743\u8fd4\u56de\u7ed9\u4e8b\u4ef6\u5faa\u73af\uff0c\u5141\u8bb8\u5176\u4ed6\u4ee3\u7801\uff08\u5982\u5176\u4ed6\u7684\u51fd\u6570\u3001\u4e8b\u4ef6\u56de\u8c03\u7b49\uff09\u5728\u5f53\u524d\u5f02\u6b65\u51fd\u6570\u4e4b\u540e\u7acb\u5373\u8fd0\u884c\u3002<\/li>\n\n\n\n<li>\u4e00\u65e6await\u540e\u9762\u7684Promise\u89e3\u51b3\uff08fulfilled\uff09\u6216\u62d2\u7edd\uff08rejected\uff09\uff0c\u539f\u5148\u6682\u505c\u7684\u5f02\u6b65\u51fd\u6570\u7ee7\u7eed\u6267\u884c\uff0c\u4ece\u6682\u505c\u7684\u4f4d\u7f6e\u6062\u590d\uff0c\u5e76\u5904\u7406Promise\u7684\u7ed3\u679c\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u867d\u7136\u4f60\u7684\u7279\u5b9a\u7684async\u51fd\u6570\u5728\u903b\u8f91\u4e0a&#8221;\u6682\u505c&#8221;\u4e86\uff0cJavaScript\u7684\u4e3b\u7ebf\u7a0b\u5e76\u6ca1\u6709\u88ab\u963b\u585e\u3002\u5176\u4ed6\u7684\u4e8b\u4ef6\u548c\u51fd\u6570\u4ecd\u7136\u53ef\u4ee5\u5728\u540e\u53f0\u6267\u884c\u3002<\/p>\n\n\n\n<p>\u4e3e\u4e00\u4e2a\u4f8b\u5b50\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=\"console.log('Start');\n\nasync function demo() {\n    console.log('Before await');\n    await new Promise(resolve =&gt; setTimeout(resolve, 2000));\n    console.log('After await');\n}\n\ndemo();\n\nconsole.log('End');\" 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\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">log<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">Start<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">async<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">function<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">demo<\/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: #D8DEE9\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">log<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">Before await<\/span><span style=\"color: #ECEFF4\">&#39;<\/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\">await<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">new<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">Promise<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">resolve<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=&gt;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">setTimeout<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">resolve<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">2000<\/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\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">log<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">After await<\/span><span style=\"color: #ECEFF4\">&#39;<\/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: #88C0D0\">demo<\/span><span style=\"color: #D8DEE9FF\">()<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">log<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">End<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u8f93\u51fa\u5c06\u662f\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Start Before await End (wait for 2 seconds) After await<\/p>\n<\/blockquote>\n\n\n\n<p>\u5e0c\u671b\u4ee5\u4e0a\u89e3\u91ca\u53ef\u4ee5\u5e2e\u52a9\u4f60\u7406\u89e3JS\u7684\u5f02\u6b65\u673a\u5236\u3002\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u8ba8\u8bba\uff0c\u6211\u4f1a\u5c3d\u53ef\u80fd\u7acb\u5373\u56de\u590d\u60a8\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u9644\u5f551.5 \u5173\u4e8e.then()<\/h2>\n\n\n\n<p>.then() \u662f\u5728 Promise \u5bf9\u8c61\u4e0a\u5b9a\u4e49\u7684\uff0c\u7528\u4e8e\u5904\u7406 Promise \u7684\u7ed3\u679c\u3002\u5f53\u4f60\u8c03\u7528 .then()\uff0c\u5b83\u4e0d\u4f1a\u7acb\u5373\u6267\u884c\uff0c\u800c\u662f\u5728 Promise \u89e3\u51b3 (fulfilled) \u6216\u62d2\u7edd (rejected) \u540e\u6267\u884c\u3002<\/p>\n\n\n\n<p>.then() \u7684\u5173\u952e\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u975e\u963b\u585e<\/strong>\uff1a\u5f53\u4f60\u8c03\u7528 .then() \u65f6\uff0c\u4ee3\u7801\u4e0d\u4f1a\u6682\u505c\u7b49\u5f85 Promise \u5b8c\u6210\u3002\u76f8\u53cd\uff0c\u5b83\u4f1a\u7acb\u5373\u8fd4\u56de\uff0c\u5e76\u5728 Promise \u5b8c\u6210\u65f6\u6267\u884c then \u91cc\u7684\u56de\u8c03\u3002<\/li>\n\n\n\n<li><strong>\u8fd4\u56de\u65b0\u7684 Promise<\/strong>\uff1a.then() \u603b\u662f\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684 Promise\u3002\u8fd9\u5141\u8bb8\u4f60\u8fdb\u884c\u94fe\u5f0f\u8c03\u7528\uff0c\u5373\u4e00\u7cfb\u5217\u7684 .then() \u8c03\u7528\uff0c\u6bcf\u4e2a\u8c03\u7528\u5904\u7406\u524d\u4e00\u4e2a Promise \u7684\u7ed3\u679c\u3002<\/li>\n\n\n\n<li><strong>\u5f02\u6b65\u56de\u8c03<\/strong>\uff1a\u5f53\u539f\u59cb Promise \u89e3\u51b3\u6216\u62d2\u7edd\u65f6\uff0c.then() \u91cc\u7684\u56de\u8c03\u51fd\u6570\u662f\u5f02\u6b65\u6267\u884c\u7684\u3002\u8fd9\u610f\u5473\u7740\u5b83\u4eec\u5728\u4e8b\u4ef6\u5faa\u73af\u7684\u5fae\u4efb\u52a1\u961f\u5217\u4e2d\u6392\u961f\uff0c\u800c\u4e0d\u662f\u7acb\u5373\u6267\u884c\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4e3e\u4e2a\u4f8b\u5b50\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=\"console.log('Start');\n\nconst promise = new Promise((resolve, reject) =&gt; {\n    setTimeout(() =&gt; {\n        resolve('Promise resolved');\n    }, 2000);\n});\n\npromise.then(result =&gt; {\n    console.log(result);\n});\n\nconsole.log('End');\" 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\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">log<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">Start<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">const<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">promise<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">new<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #8FBCBB\">Promise<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">(<\/span><span style=\"color: #D8DEE9\">resolve<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">reject<\/span><span style=\"color: #ECEFF4\">)<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=&gt;<\/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\">setTimeout<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">()<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=&gt;<\/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\">resolve<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">Promise resolved<\/span><span style=\"color: #ECEFF4\">&#39;<\/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: #B48EAD\">2000<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">promise<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">then<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">result<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=&gt;<\/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\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">log<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">result<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">}<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">console<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">log<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">End<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u8f93\u51fa\u4f1a\u662f\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Start End (wait for 2 seconds) Promise resolved<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">\u9644\u5f551.6 &#8211; \u7247\u6bb5\u7740\u8272\u5668:Uniforms\/Textures<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><a href=\"https:\/\/webglfundamentals.org\/webgl\/lessons\/zh_cn\/webgl-fundamentals.html\">https:\/\/webglfundamentals.org\/webgl\/lessons\/zh_cn\/webgl-fundamentals.html<\/a><\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">Uniforms \u5168\u5c40\u53d8\u91cf<\/h3>\n\n\n\n<p>\u5168\u5c40\u53d8\u91cf\u5728\u4e00\u6b21\u7ed8\u5236\u8fc7\u7a0b\u4e2d\u4f20\u9012\u7ed9\u7740\u8272\u5668\u7684\u503c\u90fd\u4e00\u6837\uff0c\u5728\u4e0b\u9762\u7684\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\u4e2d\uff0c \u7528\u5168\u5c40\u53d8\u91cf\u7ed9\u9876\u70b9\u7740\u8272\u5668\u6dfb\u52a0\u4e86\u4e00\u4e2a\u504f\u79fb\u91cf\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=\"attribute vec4 a_position;uniform vec4 u_offset; void main() {   gl_Position = a_position + u_offset;}\" 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\">attribute<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">vec4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">a_position<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9\">uniform<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">vec4<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">u_offset<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">void<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">main<\/span><span style=\"color: #D8DEE9FF\">() <\/span><span style=\"color: #ECEFF4\">{<\/span><span style=\"color: #D8DEE9FF\">   <\/span><span style=\"color: #D8DEE9\">gl_Position<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">a_position<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">u_offset<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #ECEFF4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u73b0\u5728\u53ef\u4ee5\u628a\u6240\u6709\u9876\u70b9\u504f\u79fb\u4e00\u4e2a\u56fa\u5b9a\u503c\uff0c\u9996\u5148\u5728\u521d\u59cb\u5316\u65f6\u627e\u5230\u5168\u5c40\u53d8\u91cf\u7684\u5730\u5740<\/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=\"var offsetLoc = gl.getUniformLocation(someProgram, &quot;u_offset&quot;);\" 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\">var<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">offsetLoc<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">getUniformLocation<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">someProgram<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">u_offset<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u7136\u540e\u5728\u7ed8\u5236\u524d\u8bbe\u7f6e\u5168\u5c40\u53d8\u91cf<\/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=\"gl.uniform4fv(offsetLoc, [1, 0, 0, 0]);  \/\/ \u5411\u53f3\u504f\u79fb\u4e00\u534a\u5c4f\u5e55\u5bbd\u5ea6\" 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\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">uniform4fv<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">offsetLoc<\/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\">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\">0<\/span><span style=\"color: #D8DEE9FF\">])<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #616E88\">\/\/ \u5411\u53f3\u504f\u79fb\u4e00\u534a\u5c4f\u5e55\u5bbd\u5ea6<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u8981\u6ce8\u610f\u7684\u662f\u5168\u5c40\u53d8\u91cf\u5c5e\u4e8e\u5355\u4e2a\u7740\u8272\u7a0b\u5e8f\uff0c\u5982\u679c\u591a\u4e2a\u7740\u8272\u7a0b\u5e8f\u6709\u540c\u540d\u5168\u5c40\u53d8\u91cf\uff0c\u9700\u8981\u627e\u5230\u6bcf\u4e2a\u5168\u5c40\u53d8\u91cf\u5e76\u8bbe\u7f6e\u81ea\u5df1\u7684\u503c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Textures \u7eb9\u7406<\/h3>\n\n\n\n<p>\u5728\u7740\u8272\u5668\u4e2d\u83b7\u53d6\u7eb9\u7406\u4fe1\u606f\uff0c\u53ef\u4ee5\u5148\u521b\u5efa\u4e00\u4e2asampler2D\u7c7b\u578b\u5168\u5c40\u53d8\u91cf\uff0c\u7136\u540e\u7528GLSL\u65b9\u6cd5texture2D \u4ece\u7eb9\u7406\u4e2d\u63d0\u53d6\u4fe1\u606f\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=\"precision mediump float; \nuniform sampler2D u_texture; \nvoid main() {   \n    vec2 texcoord = vec2(0.5, 0.5);  \/\/ \u83b7\u53d6\u7eb9\u7406\u4e2d\u5fc3\u7684\u503c   \n    gl_FragColor = texture2D(u_texture, texcoord);\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\">precision<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">mediump<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">float<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">uniform<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">sampler2D<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">u_texture<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">void<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">main<\/span><span style=\"color: #D8DEE9FF\">() <\/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\">vec2<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">texcoord<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">vec2<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #B48EAD\">0.5<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">0.5<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #616E88\">\/\/ \u83b7\u53d6\u7eb9\u7406\u4e2d\u5fc3\u7684\u503c   <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #D8DEE9\">gl_FragColor<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">texture2D<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">u_texture<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">texcoord<\/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>\u4ece\u7eb9\u7406\u4e2d\u83b7\u53d6\u7684\u6570\u636e<a target=\"_blank\" href=\"https:\/\/webglfundamentals.org\/webgl\/lessons\/zh_cn\/webgl-3d-textures.html\" rel=\"noreferrer noopener\">\u53d6\u51b3\u4e8e\u5f88\u591a\u8bbe\u7f6e<\/a>\u3002 \u81f3\u5c11\u8981\u521b\u5efa\u5e76\u7ed9\u7eb9\u7406\u586b\u5145\u6570\u636e\uff0c\u4f8b\u5982<\/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=\"var tex = gl.createTexture();\ngl.bindTexture(gl.TEXTURE_2D, tex);\nvar level = 0;\nvar width = 2;\nvar height = 1;\nvar data = new Uint8Array([\n   255, 0, 0, 255,   \/\/ \u4e00\u4e2a\u7ea2\u8272\u7684\u50cf\u7d20\n   0, 255, 0, 255,   \/\/ \u4e00\u4e2a\u7eff\u8272\u7684\u50cf\u7d20\n]);\ngl.texImage2D(gl.TEXTURE_2D, level, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, data);\ngl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);\" 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\">var<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tex<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">createTexture<\/span><span style=\"color: #D8DEE9FF\">()<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">bindTexture<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">TEXTURE_2D<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tex<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">var<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">level<\/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: #81A1C1\">var<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">width<\/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: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">var<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">height<\/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: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">var<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">data<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">new<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">Uint8Array<\/span><span style=\"color: #D8DEE9FF\">([<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">   <\/span><span style=\"color: #B48EAD\">255<\/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\">0<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">255<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\">   <\/span><span style=\"color: #616E88\">\/\/ \u4e00\u4e2a\u7ea2\u8272\u7684\u50cf\u7d20<\/span><\/span>\n<span class=\"line\"><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\">255<\/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\">255<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\">   <\/span><span style=\"color: #616E88\">\/\/ \u4e00\u4e2a\u7eff\u8272\u7684\u50cf\u7d20<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">])<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">texImage2D<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">TEXTURE_2D<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">level<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">RGBA<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">width<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">height<\/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: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">RGBA<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">UNSIGNED_BYTE<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">data<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">texParameteri<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">TEXTURE_2D<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">TEXTURE_MIN_FILTER<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">LINEAR<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u5728\u521d\u59cb\u5316\u65f6\u627e\u5230\u5168\u5c40\u53d8\u91cf\u7684\u5730\u5740<\/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=\"var someSamplerLoc = gl.getUniformLocation(someProgram, &quot;u_texture&quot;);\" 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\">var<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">someSamplerLoc<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">getUniformLocation<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">someProgram<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">u_texture<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u5728\u6e32\u67d3\u7684\u65f6\u5019WebGL\u8981\u6c42\u7eb9\u7406\u5fc5\u987b\u7ed1\u5b9a\u5230\u4e00\u4e2a\u7eb9\u7406\u5355\u5143\u4e0a<\/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=\"var unit = 5;  \/\/ \u6311\u9009\u4e00\u4e2a\u7eb9\u7406\u5355\u5143\ngl.activeTexture(gl.TEXTURE0 + unit);\ngl.bindTexture(gl.TEXTURE_2D, tex);\" 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\">var<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">unit<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">5<\/span><span style=\"color: #81A1C1\">;<\/span><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #616E88\">\/\/ \u6311\u9009\u4e00\u4e2a\u7eb9\u7406\u5355\u5143<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">activeTexture<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">TEXTURE0<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">+<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">unit<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">bindTexture<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">TEXTURE_2D<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tex<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u7136\u540e\u544a\u8bc9\u7740\u8272\u5668\u4f60\u8981\u4f7f\u7528\u7684\u7eb9\u7406\u5728\u90a3\u4e2a\u7eb9\u7406\u5355\u5143<\/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=\"gl.uniform1i(someSamplerLoc, unit);\" 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\">gl<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #88C0D0\">uniform1i<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #D8DEE9\">someSamplerLoc<\/span><span style=\"color: #ECEFF4\">,<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">unit<\/span><span style=\"color: #D8DEE9FF\">)<\/span><span style=\"color: #81A1C1\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">References<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>GAMES202<\/li>\n\n\n\n<li>Real-Time Rendering 4th Edition<\/li>\n\n\n\n<li>https:\/\/webglfundamentals.org\/webgl\/lessons\/webgl-shaders-and-glsl.html<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u5185\u5bb9\uff1aJS\u548cWebGL\u76f8\u5173\u77e5\u8bc6\u30012-pass shadow\u7b97\u6cd5\u3001BIAS\u7f13\u89e3\u81ea\u906e\u6321\u3001PCF\u7b97\u6cd5\u3001PCSS\u3001 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1331,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[53],"tags":[56,71],"class_list":["post-1326","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech","tag-cg","tag-soft-shadow"],"_links":{"self":[{"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/posts\/1326","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=1326"}],"version-history":[{"count":2,"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/posts\/1326\/revisions"}],"predecessor-version":[{"id":1390,"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/posts\/1326\/revisions\/1390"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/media\/1331"}],"wp:attachment":[{"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/media?parent=1326"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/categories?post=1326"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/remoooo.com\/en\/wp-json\/wp\/v2\/tags?post=1326"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}