{"id":627,"date":"2026-03-21T17:19:24","date_gmt":"2026-03-21T09:19:24","guid":{"rendered":"https:\/\/www.s7arry.top\/?p=627"},"modified":"2026-03-21T17:51:30","modified_gmt":"2026-03-21T09:51:30","slug":"pbr01","status":"publish","type":"post","link":"https:\/\/www.s7arry.top\/index.php\/2026\/03\/21\/pbr01\/","title":{"rendered":"PBR \u5b66\u4e60\u603b\u7ed3\uff1a\u7406\u8bba\u7bc7"},"content":{"rendered":"\n<p>\u535a\u5ba2\u4e2d\u6392\u7248\u53ef\u80fd\u770b\u7740\u6ca1\u90a3\u4e48\u8212\u670d\uff0c\u53ef\u4ee5\u770b\u8bed\u96c0\uff1a<a href=\"https:\/\/www.yuque.com\/starry-zvpk0\/aygygr\/xg9ega0miwaekgr2?singleDoc# \u300aPBR \u5b66\u4e60\u603b\u7ed3\uff1a\u7406\u8bba\u7bc7\u300b\" target=\"_blank\" rel=\"noreferrer noopener\">PBR \u5b66\u4e60\u603b\u7ed3\uff1a\u7406\u8bba\u7bc7<\/a><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><\/p>\n<\/blockquote>\n<\/blockquote>\n<\/blockquote>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"Cri7B\">\u96f6\u3001\u524d\u8a00<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"QPqMs\">1. \u4ec0\u4e48\u662fPBR<\/h2>\n\n\n\n<p id=\"uc6e51f21\">PBR\u5168\u79f0Physically Based Rendering\uff0c\u4e2d\u6587\u662f<strong>\u57fa\u4e8e\u7269\u7406\u7684\u6e32\u67d3\u3002<\/strong><\/p>\n\n\n\n<p id=\"u879682c1\">\u5b83\u662f\u5229\u7528\u771f\u5b9e\u4e16\u754c\u7684\u539f\u7406\u548c\u7406\u8bba\uff0c\u901a\u8fc7\u5404\u79cd\u6570\u5b66\u65b9\u6cd5\u63a8\u5bfc\u6216\u7b80\u5316\u6216\u6a21\u62df\u51fa\u4e00\u7cfb\u5217\u6e32\u67d3\u65b9\u7a0b\uff0c\u5e76\u4f9d\u8d56\u8ba1\u7b97\u673a\u786c\u4ef6\u548c\u56fe\u5f62API\u6e32\u67d3\u51fa\u62df\u771f\u753b\u9762\u7684\u6280\u672f\u3002<\/p>\n\n\n\n<p id=\"u33cdf8e0\">PBR\u53ea\u80fd\u4e00\u5b9a\u7a0b\u5e8f\u4e0a\u6a21\u62df\u63a5\u8fd1\u771f\u5b9e\u4e16\u754c\u7684\u6e32\u67d3\u753b\u9762\uff0c\u8fd8\u4e0d\u80fd\u6e32\u67d3\u8ddf\u771f\u5b9e\u4e16\u754c\u5b8c\u5168\u4e00\u81f4\u7684\u6548\u679c\uff0c\u6545\u800c\u53eb\u57fa\u4e8e\u7269\u7406\u7684\u6e32\u67d3\uff0c\u800c\u975e\u7269\u7406\u6e32\u67d3\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"iDcF0\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"xXGz5\">2. \u4e3a\u4ec0\u4e48\u9700\u8981PBR<\/h2>\n\n\n\n<p id=\"udffa1513\">\u7b80\u5355\u6765\u8bf4\u5c31\u662f \u4f20\u7edf\u7684\u7ecf\u9a8c\u5149\u7167\u6a21\u578b \u4e0d\u5982PBR\u6548\u679c\u597d\uff0c\u5982\u56fe<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-3.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"743\" height=\"523\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-3.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-652\"  sizes=\"auto, (max-width: 743px) 100vw, 743px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-4.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"742\" height=\"526\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-4.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-653\"  sizes=\"auto, (max-width: 742px) 100vw, 742px\" \/><\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"PYKAt\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"XSXNz\">3. PBR\u7684\u8303\u7574<\/h2>\n\n\n\n<p id=\"u2bd87a20\">\u5bd2\u971c(Frostbite)\u5f15\u64ce\u5728SIGGRAPH 2014\u7684\u5206\u4eab\u300aMoving Frostbite to PBR\u300b\u4e2d\u63d0\u51fa\uff0c\u57fa\u4e8e\u7269\u7406\u7684\u6e32\u67d3\u7684\u8303\u7574\uff0c\u7531\u4e09\u90e8\u5206\u7ec4\u6210\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u57fa\u4e8e\u7269\u7406\u7684\u6750\u8d28\uff08Material\uff09<\/strong><\/li>\n\n\n\n<li><strong>\u57fa\u4e8e\u7269\u7406\u7684\u5149\u7167\uff08Lighting\uff09<\/strong><\/li>\n\n\n\n<li><strong>\u57fa\u4e8e\u7269\u7406\u9002\u914d\u7684\u6444\u50cf\u673a\uff08Camera\uff09<\/strong><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-5-1024x577.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"577\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-5-1024x577.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-655\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p id=\"u3b6058a9\">\u5b8c\u6574\u7684\u8fd9\u4e09\u8005\uff0c\u624d\u662f\u771f\u6b63\u5b8c\u6574\u7684\u57fa\u4e8e\u7269\u7406\u7684\u6e32\u67d3\u7cfb\u7edf\u3002<\/p>\n\n\n\n<p id=\"uad89fc8d\">\u8bf4PBR\u5c31\u662f\u955c\u9762\u53cd\u5c04\u91c7\u7528\u5fae\u5e73\u9762Cook-Torrance\u6a21\u578b\uff0c\u5176\u5b9e\u662f\u4e0d\u592a\u4e25\u8c28\u7684\u3002<\/p>\n\n\n\n<p id=\"ud13dffab\"><strong>\u672c\u6587\u4e3b\u8981\u5305\u542b\u7684\u662f \u57fa\u4e8e\u7269\u7406\u7684\u6750\u8d28\uff08Material\uff09<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"fxo8f\"\/>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"ie145\">\u4e00\u3001\u6838\u5fc3\u7406\u8bba<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"vAO8p\">1. \u5fae\u5e73\u9762\u7406\u8bba <strong>Microfacet Theory<\/strong><\/h2>\n\n\n\n<p id=\"ueae621b4\">\u5fae\u5e73\u9762\u7406\u8bba\u662f\u5c06\u7269\u4f53\u8868\u9762\u5efa\u6a21\u6210\u65e0\u6570\u5fae\u89c2\u5c3a\u5ea6\u4e0a<strong>\u6709\u968f\u673a\u671d\u5411\u7684\u7406\u60f3\u955c\u9762\u53cd\u5c04\u7684\u5c0f\u5e73\u9762<\/strong>\uff08microfacet\uff09\u7684\u7406\u8bba<\/p>\n\n\n\n<p id=\"u0baef8f6\">\u771f\u5b9e\u4e16\u754c\u7684\u7269\u4f53\u8868\u9762\u4e0d\u4e00\u5b9a\u662f\u5f88\u591a\u5fae\u5c0f\u5e73\u9762\u7ec4\u6210\uff0c\u4e5f\u53ef\u80fd\u662f\u5e26\u6709\u5f27\u5ea6\u6216\u8005\u5751\u5751\u6d3c\u6d3c\u3002\u4f46\u5bf9\u4e8e\u6211\u4eec\u8089\u773c\u80fd\u89c2\u5bdf\u5230\u7684\u7ef4\u5ea6\uff0cPBR\u7684\u5fae\u89c2\u8fd1\u4f3c\u6a21\u62df\u65b9\u6cd5\u4ea7\u751f\u7684\u7ed3\u679c\u8ddf\u5b9e\u9645\u5dee\u522b\u751a\u5fae\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-6-1024x640.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"640\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-6-1024x640.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-656\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p id=\"u94f72cc8\">\u5fae\u89c2\u5c3a\u5ea6\u4e0a\uff0c\u7269\u4f53\u8868\u9762\u6709\u65e0\u6570\u7684\u5fae\u8868\u9762\u6784\u6210\u3002<\/p>\n\n\n\n<p id=\"u807c9dfb\">\u7528\u7c97\u7cd9\u5ea6\u53bb\u8861\u91cf\u4e00\u4e2a\u8868\u9762\u7684\u7c97\u7cd9\u7a0b\u5ea6\uff0c\u8868\u9762\u8d8a\u7c97\u7cd9\uff0c\u53cd\u5c04\u8d8a\u6a21\u7cca\uff0c\u8868\u9762\u8d8a\u5149\u6ed1\uff0c\u53cd\u5c04\u8d8a\u96c6\u4e2d\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-7-1024x359.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"359\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-7-1024x359.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-658\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"OGTVU\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Inp9o\">2. \u80fd\u91cf\u5b88\u6052 <strong>Energy Conservation<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"CMZBG\">\u5149\u4e0e\u4ecb\u8d28\u8fb9\u754c\u7684\u4ea4\u4e92\u7c7b\u578b<\/h3>\n\n\n\n<p id=\"u435ae755\">\u5728\u63cf\u8ff0\u80fd\u91cf\u5b88\u6052\u4e4b\u524d\u5148\u4e86\u89e3\u4e00\u4e0b<strong>\u5149\u4e0e\u4ecb\u8d28\u8fb9\u754c\u7684\u4ea4\u4e92\u7c7b\u578b<\/strong>\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-8-1024x425.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"425\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-8-1024x425.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-659\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u53cd\u5c04\uff08Reflection\uff09\uff1a<\/strong>\u5149\u7ebf\u5728\u4e24\u79cd\u4ecb\u8d28\u4ea4\u754c\u5904\u7684\u76f4\u63a5\u53cd\u5c04<\/li>\n\n\n\n<li><strong>\u6298\u5c04\uff08Refraction\uff09\uff1a<\/strong>\u4ece\u8868\u9762\u6298\u5c04\u5165\u4ecb\u8d28\u7684\u5149\uff0c\u4f1a\u53d1\u751f\u5438\u6536\uff08absorption\uff09\u548c\u6563\u5c04\uff08scattering\uff09<\/li>\n\n\n\n<li><strong>\u6563\u5c04\uff08Scattering\uff09\uff1a<\/strong>\u6298\u5c04\u7387\u7684\u5feb\u901f\u53d8\u5316\u5f15\u8d77\u6563\u5c04\uff0c\u5149\u7684\u65b9\u5411\u4f1a\u6539\u53d8\uff08\u5206\u88c2\u6210\u591a\u4e2a\u65b9\u5411\uff09\uff0c\u4f46\u662f\u5149\u7684\u603b\u91cf\u6216\u5149\u8c31\u5206\u5e03\u4e0d\u4f1a\u6539\u53d8\u3002\u6563\u5c04\u6700\u7ec8\u88ab\u89c6\u4f5c\u7684\u7c7b\u578b\u4e0e\u89c2\u5bdf\u5c3a\u5ea6\u6709\u5173\uff1a<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6b21\u8868\u9762\u6563\u5c04\uff08Subsurface Scattering\uff09\uff1a<\/strong>\u89c2\u5bdf\u50cf\u7d20\u5c0f\u4e8e\u6563\u5c04\u8ddd\u79bb\uff0c\u6563\u5c04\u88ab\u89c6\u4f5c\u6b21\u8868\u9762\u6563\u5c04<\/li>\n\n\n\n<li><strong>\u6f2b\u53cd\u5c04\uff08Diffuse\uff09\uff1a<\/strong>\u89c2\u5bdf\u50cf\u7d20\u5927\u4e8e\u6563\u5c04\u8ddd\u79bb\uff0c\u6563\u5c04\u88ab\u89c6\u4f5c\u6f2b\u53cd\u5c04<\/li>\n\n\n\n<li><strong>\u900f\u5c04\uff08Transmission\uff09\uff1a<\/strong>\u5165\u5c04\u5149\u7ecf\u8fc7\u6298\u5c04\u7a7f\u8fc7\u7269\u4f53\u540e\u7684\u51fa\u5c04\u73b0\u8c61\u3002\u900f\u5c04\u4e3a\u6b21\u8868\u9762\u6563\u5c04\u7684\u7279\u4f8b<\/li>\n\n\n\n<li><strong>\u5438\u6536\uff08Absorption\uff09<\/strong>\u5177\u6709\u590d\u6298\u5c04\u7387\u7684\u7269\u8d28\u533a\u57df\u4f1a\u5f15\u8d77\u5438\u6536<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"nBlQC\"><strong>\u4e0d\u540c\u7269\u8d28\u4e0e\u5149\u7684\u4ea4\u4e92<\/strong><\/h3>\n\n\n\n<p id=\"u6d378185\">\u4e0a\u6587\u5df2\u7ecf\u63d0\u5230\uff0c\u5149\u7ebf\u5165\u5c04\u5230\u4e24\u79cd\u4ecb\u8d28\u4e4b\u95f4\u5e73\u9762\u8fb9\u754c\u65f6\uff0c\u4f1a\u53d1\u751f\u53cd\u5c04\u548c\u6298\u5c04\u3002<\/p>\n\n\n\n<p id=\"ufd8e854f\">\u800c\u6839\u636e\u6750\u8d28\u5149\u5b66\u6027\u8d28\u7684\u4e0d\u540c\uff0c\u5177\u6709\u4e0d\u540c\u7684\u884c\u4e3a\u8868\u73b0\uff0c\u4ece\u800c\u5f97\u5230\u4e0d\u540c\u7684\u6750\u8d28\u5916\u89c2\u3002<\/p>\n\n\n\n<p id=\"u609da21b\">\u53ef\u4ee5\u5c06\u6750\u8d28\u6839\u636e\u5149\u5b66\u7279\u6027\uff0c\u5206\u4e3a\u91d1\u5c5e\u548c\u975e\u91d1\u5c5e\u4e24\u5927\u7c7b\uff0c\u5177\u4f53\u884c\u4e3a\u53ef\u4ee5\u603b\u7ed3\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u91d1\u5c5e\uff08Metal\uff09<\/strong>\u3002\u91d1\u5c5e\u7684\u5916\u89c2\u4e3b\u8981\u53d6\u51b3\u4e8e\u5149\u7ebf\u5728\u4e24\u79cd\u4ecb\u8d28\u7684\u4ea4\u754c\u9762\u4e0a\u7684\u76f4\u63a5\u53cd\u5c04\uff08\u5373\u955c\u9762\u53cd\u5c04\uff09\u3002<strong>\u91d1\u5c5e\u7684\u955c\u9762\u53cd\u5c04\u989c\u8272\u4e3a\u4e09\u901a\u9053\u7684\u5f69\u8272\uff0cR\u3001G\u3001B\u5404\u4e0d\u76f8\u540c<\/strong>\u3002\u800c\u6298\u5c04\u5165\u91d1\u5c5e\u5185\u90e8\u7684\u5149\u7ebf\u51e0\u4e4e\u7acb\u5373\u5168\u90e8\u88ab\u81ea\u7531\u7535\u5b50\u5438\u6536\uff0c\u4e14\u6298\u5c04\u5165\u91d1\u5c5e\u7684\u5149\u4e0d\u5b58\u5728\u6563\u5c04\u3002<\/li>\n\n\n\n<li><strong>\u975e\u91d1\u5c5e\uff08No-Metal\uff09<\/strong>\u3002\u975e\u91d1\u5c5e\u5373\u7535\u4ecb\u8d28\uff0c\u5176\u7684\u6574\u4f53\u5916\u89c2\u4e3b\u8981\u7531\u5176\u5438\u6536\u548c\u6563\u5c04\u7684\u7279\u6027\u7ec4\u5408\u51b3\u5b9a\u3002\u540c\u6837\uff0c\u975e\u91d1\u5c5e\u4e0e\u5149\u7684\u4ea4\u4e92\u5206\u4e3a\u53cd\u5c04\u548c\u6298\u5c04\u4e24\u90e8\u5206\u3002\u800c\u6298\u5c04\u6309\u4ecb\u8d28\u7c7b\u578b\u7684\u6563\u5c04\u548c\u5438\u6536\u7279\u6027\uff0c\u5206\u4e3a\u591a\u7c7b\uff0c\u8fd9\u91cc\u7565\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"Ygdao\"\/>\n\n\n\n<p id=\"ue1528afe\"><strong>\u6982\u5ff5\uff1a<\/strong>\u51fa\u5c04\u5149\u7ebf\u7684\u80fd\u91cf \u6c38\u8fdc\u4e0d\u80fd\u5927\u4e8e \u5165\u5c04\u5149\u7ebf\u7684\u80fd\u91cf<\/p>\n\n\n\n<p id=\"u765641c9\"><strong>\u8868\u73b0\uff1a<\/strong>\u968f\u7740\u7c97\u7cd9\u5ea6\u7684\u4e0a\u5347\u955c\u9762\u53cd\u5c04\u533a\u57df\u7684\u9762\u79ef\u4f1a\u589e\u52a0\uff0c\u4f5c\u4e3a\u5e73\u8861\uff0c\u955c\u9762\u53cd\u5c04\u533a\u57df\u7684\u5e73\u5747\u4eae\u5ea6\u5219\u4f1a\u4e0b\u964d<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-9.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"823\" height=\"165\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-9.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-660\"  sizes=\"auto, (max-width: 823px) 100vw, 823px\" \/><\/div><\/figure>\n\n\n\n<p id=\"u2480a5a8\">\u80fd\u91cf\u5b88\u6052\u5e94\u7528\u5230PBR\u4e2d\uff0c\u53ef\u4ee5\u7528\u6e32\u67d3\u65b9\u7a0b\u6765\u63cf\u8ff0<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"D0GrL\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"jgK8Z\">3. \u83f2\u6d85\u5c14\u53cd\u5c04 <strong>Fresnel Reflection<\/strong><\/h2>\n\n\n\n<p id=\"ud874c5bb\">\u7b80\u5355\u6765\u8bf4\uff0c\u83f2\u6d85\u5c14\u6548\u5e94\u5373\u63cf\u8ff0<strong>\u89c6\u7ebf\u5782\u76f4\u4e8e\u8868\u9762\u65f6\u53cd\u5c04\u8f83\u5f31<\/strong>\uff0c\u800c\u5f53<strong>\u89c6\u7ebf\u975e\u5782\u76f4\u8868\u9762\u65f6\uff0c\u5939\u89d2\u8d8a\u5c0f\uff0c\u53cd\u5c04\u8d8a\u660e\u663e<\/strong>\u7684\u4e00\u79cd\u73b0\u8c61\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-10.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"711\" height=\"671\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-10.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-661\"  sizes=\"auto, (max-width: 711px) 100vw, 711px\" \/><\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"TWHkK\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"dpv5f\">4. \u7ebf\u6027\u7a7a\u95f4Linear \u548c Gamma\u77eb\u6b63<\/h2>\n\n\n\n<p id=\"ud8fc5a4a\">\u5149\u7167\u8ba1\u7b97\u5fc5\u987b\u5728\u7ebf\u6027\u7a7a\u95f4\u5b8c\u6210\uff0cshader \u4e2d\u8f93\u5165\u7684gamma\u7a7a\u95f4\u7684\u8d34\u56fe\u6bd4\u5982\u6f2b\u53cd\u5c04\u8d34\u56fe\u9700\u8981\u88ab\u8f6c\u6210\u7ebf\u6027\u7a7a\u95f4<\/p>\n\n\n\n<p id=\"uf8cccb64\">\u5728\u5177\u4f53\u64cd\u4f5c\u65f6\u9700\u8981\u6839\u636e\u4e0d\u540c\u5f15\u64ce\u548c\u6e32\u67d3\u5668\u7684\u4e0d\u540c\u505a\u4e0d\u540c\u7684\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p id=\"uaefa8009\">\u800c\u63cf\u8ff0\u7269\u4f53\u8868\u9762\u5c5e\u6027\u7684\u8d34\u56fe\u5982\u7c97\u7cd9\u5ea6\uff0c\u9ad8\u5149\u8d34\u56fe\uff0c\u91d1\u5c5e\u8d34\u56fe\u7b49\u5fc5\u987b\u4fdd\u8bc1\u662f\u7ebf\u6027\u7a7a\u95f4\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"CpxEZ\">5. \u8272\u8c03\u6620\u5c04 ToneMapping<\/h2>\n\n\n\n<p id=\"uc4951530\">\u4e5f\u79f0\u8272\u8c03\u590d\u5236\uff08tone reproduction\uff09\uff0c\u662f\u5c06\u5bbd\u8303\u56f4\u7684\u7167\u660e\u7ea7\u522b\u62df\u5408\u5230\u5c4f\u5e55\u6709\u9650\u8272\u57df\u5185\u7684\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<p id=\"ub7f2f5c4\">\u56e0\u4e3a\u57fa\u4e8eHDR\u6e32\u67d3\u51fa\u6765\u7684\u4eae\u5ea6\u503c\u4f1a\u8d85\u8fc7\u663e\u793a\u5668\u80fd\u591f\u663e\u793a\u6700\u5927\u4eae\u5ea6\uff0c\u6240\u4ee5\u9700\u8981\u4f7f\u7528\u8272\u8c03\u6620\u5c04\uff0c\u5c06\u5149\u7167\u7ed3\u679c\u4eceHDR\u8f6c\u6362\u4e3a\u663e\u793a\u5668\u80fd\u591f\u6b63\u5e38\u663e\u793a\u7684LDR\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Rk5vN\">6. <strong>\u771f\u5b9e\u4e16\u754c\u6750\u8d28\u7684\u6e32\u67d3\u5c5e\u6027<\/strong><\/h2>\n\n\n\n<p id=\"ud22ce5d2\">\u57fa\u4e8e\u7269\u7406\u7684\u6e32\u67d3\u7684\u6838\u5fc3\u7406\u5ff5\u4e4b\u4e00\u662f\u91c7\u7528\u57fa\u4e8e\u771f\u5b9e\u4e16\u754c\u6d4b\u91cf\u7684\u6750\u8d28\u5149\u5b66\u53c2\u6570<\/p>\n\n\n\n<p id=\"u2dbdae64\">\u6839\u636e\u5bfc\u7535\u7279\u6027\uff0c\u53ef\u5c06\u73b0\u5b9e\u751f\u6d3b\u4e2d\u7684\u7269\u8d28\u5206\u4e3a\u4e09\u4e2a\u4e3b\u8981\u5149\u5b66\u7c7b\u522b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7535\u4ecb\u8d28\uff08dielectrics\uff09<\/strong>\uff0c\u53c8\u79f0\u7edd\u7f18\u4f53\uff08Insulators\uff09\uff0c\u975e\u91d1\u5c5e\uff08no-metal\uff09<\/li>\n\n\n\n<li><strong>\u534a\u5bfc\u4f53\uff08semiconductors\uff09<\/strong><\/li>\n\n\n\n<li><strong>\u91d1\u5c5e\uff08metals\uff09<\/strong>\uff0c\u53c8\u79f0\u5bfc\u4f53\uff08conductors\uff09<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-11-1024x480.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"480\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-11-1024x480.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-663\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p id=\"uc5e0b5bf\"><strong>\u5e38\u89c1\u6750\u8d28F0\u53c2\u8003<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-12-651x1024.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"651\" height=\"1024\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-12-651x1024.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-664\"  sizes=\"auto, (max-width: 651px) 100vw, 651px\" \/><\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"Lwn0E\"\/>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"pl0Dx\">\u4e8c\u3001\u6e32\u67d3\u65b9\u7a0b\u4e0eBxDF<\/h1>\n\n\n\n<p id=\"u9c7afc89\">\u8fd9\u91cc\u4eceGames101\u7684\u7b14\u8bb0\u4e2d\u6458\u6284\u4e86\u4e00\u90e8\u5206<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"AfCuy\">1. BRDF<\/h2>\n\n\n\n<p id=\"ud23b4409\"><strong>\u4ec0\u4e48\u662fBRDF\uff1f<\/strong><\/p>\n\n\n\n<p id=\"ubfb27343\">\u53cc\u5411\u53cd\u5c04\u5206\u5e03\u51fd\u6570 Bidirectional Reflectance Distribution Function\uff08BRDF\uff09<strong>\u63cf\u8ff0\u7684\u662f \u5165\u5c04\u5149 \u548c \u53cd\u5c04\u5149\u5173\u7cfb<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5149\u7ebf\u4ece\u67d0\u4e2a\u65b9\u5411\u8fdb\u6765\uff0c\u6253\u5230\u67d0\u4e2a\u7269\u4f53\u4e4b\u540e\uff0c\u5f80\u4e0d\u540c\u7684\u65b9\u5411\u4e0a\u53cd\u5c04\uff0c\u5b83\u7684\u80fd\u91cf\u5206\u5e03\u3002<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u662f\u955c\u9762\u53cd\u5c04\uff0c\u90a3\u5b83\u53cd\u5c04\u51fa\u53bb\u7684\u65b9\u5411\u4e0a\u5206\u5e03\u4e86\u6240\u6709\u7684\u80fd\u91cf\uff1b<\/li>\n\n\n\n<li>\u5982\u679c\u662f\u6f2b\u53cd\u5c04\uff0c\u90a3\u8fdb\u6765\u7684\u80fd\u91cf\u4f1a\u88ab\u5747\u7b49\u7684\u5206\u914d\u5230\u5404\u4e2a\u4e0d\u540c\u7684\u51fa\u5c04\u65b9\u5411\u4e0a\u53bb<\/li>\n\n\n\n<li>BRDF\u5c31\u662f\u63cf\u8ff0\u4e86\u5149\u7ebf\u548c\u7269\u4f53\u662f\u5982\u4f55\u4f5c\u7528\u7684\uff0c\u6240\u4ee5BRDF\u9879\u5b9a\u4e49\u4e86\u7269\u4f53\u7684\u4e0d\u540c\u6750\u8d28<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"FewhO\">2. \u53cd\u5c04\u65b9\u7a0b Reflection Equation<\/h2>\n\n\n\n<p id=\"u247f1dd4\">\u53cd\u5c04\u65b9\u7a0b\u5b9a\u4e49\u7684\u662f\u4efb\u4f55\u4e00\u4e2a\u7740\u8272\u70b9\uff0c\u5728\u5404\u79cd\u4e0d\u540c\u7684\u5149\u7167\u73af\u5883\u4e0b\uff0c\u6211\u4eec\u8003\u8651\u4efb\u4f55\u4e00\u4e2a\u8f93\u5165\u7684\u5149\u7167\u7684\u8fdb\u5165\u65b9\u5411\u5bf9\u51fa\u5c04\uff08\u89c2\u6d4b\uff09\u65b9\u5411\u7684\u8d21\u732e\uff0c\u5e76\u5c06\u6240\u6709\u5165\u5c04\u65b9\u5411\u7684\u8d21\u732e\u90fd\u52a0\u8d77\u6765<\/p>\n\n\n\n<p id=\"u5051e672\"><strong>\u7b80\u5355\u6765\u8bf4\uff0c\u53cd\u5c04\u65b9\u7a0b\u5c31\u662f\u628a\u6765\u81ea\u56db\u9762\u516b\u65b9\u7684\u6bcf\u4e00\u675f\u5165\u5c04\u5149\uff0c\u6839\u636eBRDF\u8ba1\u7b97\u4e00\u904d\u540e\uff0c\u5168\u90e8\u7d2f\u52a0\u5f97\u5230\u7684\u6700\u7ec8\u4eae\u5ea6<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-13.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"259\" height=\"69\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-13.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-665\"\/><\/div><\/figure>\n\n\n\n<p id=\"u50788424\">\u5176\u4e2d\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-14.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"518\" height=\"176\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-14.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-667\"  sizes=\"auto, (max-width: 518px) 100vw, 518px\" \/><\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"R6y8Y\">3. \u6e32\u67d3\u65b9\u7a0b <strong>Rendering Equation<\/strong><\/h2>\n\n\n\n<p id=\"u7012178b\">\u6e32\u67d3\u65b9\u7a0b\u5728\u53cd\u5c04\u65b9\u7a0b\u7684\u57fa\u7840\u4e0a\u5728\u524d\u9762\u8003\u8651\u4e86<strong>\u7269\u4f53\u672c\u8eab\u4f1a\u53d1\u5149\uff08Emission\uff0c\u81ea\u53d1\u5149\uff09<\/strong>\uff0c\u4f7f\u5176\u66f4\u4e3a\u901a\u7528\uff0c\u6240\u6709\u7269\u4f53\u8868\u9762\u7684\u5149\u7ebf\u4f20\u64ad\u90fd\u53ef\u4ee5\u7528\u8fd9\u4e2a\u516c\u5f0f\u6765\u603b\u7ed3<\/p>\n\n\n\n<p id=\"uc78a71da\">\u6e32\u67d3\u65b9\u7a0b\u7684<strong>\u7269\u7406\u57fa\u7840\u662f\u80fd\u91cf\u5b88\u6052\u5b9a\u5f8b\uff0c<\/strong>\u67d0\u4e00\u70b9P\u7684\u6e32\u67d3\u65b9\u7a0b\uff0c\u53ef\u4ee5\u8868\u793a\u4e3a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-15.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"341\" height=\"73\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-15.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-668\"  sizes=\"auto, (max-width: 341px) 100vw, 341px\" \/><\/div><\/figure>\n\n\n\n<p id=\"ue4e8dc4c\">\u5176\u4e2d\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-16.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"519\" height=\"192\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-16.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-669\"  sizes=\"auto, (max-width: 519px) 100vw, 519px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-17.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"739\" height=\"398\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-17.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-670\"  sizes=\"auto, (max-width: 739px) 100vw, 739px\" \/><\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"xHZDU\">4. BxDF<\/h2>\n\n\n\n<p id=\"ubbac189b\">BxDF\u4e00\u822c\u800c\u8a00\u662f\u5bf9BRDF\u3001BTDF\u3001BSDF\u3001BSSRDF\u7b49\u51e0\u79cd\u53cc\u5411\u5206\u5e03\u51fd\u6570\u7684\u4e00\u4e2a\u7edf\u4e00\u7684\u8868\u793a\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>BRDF\uff1a\u53cc\u5411\u53cd\u5c04\u5206\u5e03\u51fd\u6570 Bidirectional Reflectance Distribution Function<\/li>\n\n\n\n<li>BTDF\uff1a\u53cc\u5411\u900f\u5c04\u5206\u5e03\u51fd\u6570 Bidirectional Transmittance Distribution Function<\/li>\n\n\n\n<li>BSDF\uff1a\u53cc\u5411\u6563\u5c04\u5206\u5e03\u51fd\u6570 Bidirectional Scattering Distribution Function<\/li>\n\n\n\n<li>BSSRDF\uff1a\u53cc\u5411\u6563\u5c04\u8868\u9762\u53cd\u5c04\u5206\u5e03\u51fd\u6570 Bidirectional Scarttering-Surface Reflectance Distribution Function<\/li>\n<\/ul>\n\n\n\n<p id=\"u0337c89d\">\u5176\u4e2d\uff0cBSDF\u53ef\u4ee5\u770b\u505aBRDF\u548cBTDF\u66f4\u4e00\u822c\u7684\u5f62\u5f0f\uff0c\u4e14BSDF = BRDF + BTDF\uff08\u5149\u4e0e\u4ecb\u8d28\u8fb9\u754c\u7684\u4ea4\u4e92\u7c7b\u578b\u4e2d\u4e5f\u4ecb\u7ecd\u5230\uff0c\u900f\u5c04\u4e3a\u6563\u5c04\u7684\u7279\u6b8a\u60c5\u51b5\uff09<\/p>\n\n\n\n<p id=\"uf01fb4b2\">\u800cBSSRDF\u548cBRDF\u7684\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\uff0cBSSRDF\u53ef\u4ee5<strong>\u6307\u5b9a\u4e0d\u540c\u7684\u5149\u7ebf\u5165\u5c04\u4f4d\u7f6e\u548c\u51fa\u5c04\u4f4d\u7f6e<\/strong>\u3002<\/p>\n\n\n\n<p id=\"ub2c7365f\">\u5728\u4e0a\u8ff0\u8fd9\u4e9bBxDF\u4e2d\uff0cBRDF\u6700\u4e3a\u7b80\u5355\uff0c\u4e5f\u6700\u4e3a\u5e38\u7528\u3002\u56e0\u4e3a\u6e38\u620f\u548c\u7535\u5f71\u4e2d\u7684\u5927\u591a\u6570\u7269\u4f53\u90fd\u662f\u4e0d\u900f\u660e\u7684\uff0c\u7528BRDF\u5c31\u5b8c\u5168\u8db3\u591f\u3002\u800cBSDF\u3001BTDF\u3001BSSRDF\u5f80\u5f80\u66f4\u591a\u7528\u4e8e\u534a\u900f\u660e\u6750\u8d28\u548c\u6b21\u8868\u9762\u6563\u5c04\u6750\u8d28\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-18.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"597\" height=\"800\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-18.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-672\"  sizes=\"auto, (max-width: 597px) 100vw, 597px\" \/><\/div><\/figure>\n\n\n\n<p id=\"u2e25ce2c\">\u6211\u4eec\u65f6\u5e38\u8ba8\u8bba\u7684PBR\u4e2d\u7684BxDF\uff0c\u4e00\u822c\u90fd\u4e3aBRDF\uff0c\u5bf9\u4e8e\u8fdb\u9636\u7684\u4e00\u4e9b\u6750\u8d28\u7684\u6e32\u67d3\uff0c\u624d\u4f1a\u8ba8\u8bbaBSDF\u7b49\u5176\u4ed6\u4e09\u79cdBxDF\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"i1fa2\"\/>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"ULM7X\">\u4e09\u3001\u6f2b\u53cd\u5c04BRDF\u6a21\u578b\uff08Diffuse BRDF\uff09<\/h1>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-1-1024x600.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"600\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-1-1024x600.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-647\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p id=\"u3319a570\">Diffuse BRDF\u53ef\u4ee5\u5206\u4e3a\u4f20\u7edf\u578b\u548c\u57fa\u4e8e\u7269\u7406\u578b\u4e24\u5927\u7c7b\u3002\u5176\u4e2d\uff0c\u4f20\u7edf\u578b\u4e3b\u8981\u662f\u4f17\u6240\u5468\u77e5\u7684Lambert<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"upRX7\"\/>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"WjiKx\">\u56db\u3001\u955c\u9762\u53cd\u5c04BRDF\u6a21\u578b\uff08Specular BRDF\uff09<\/h1>\n\n\n\n<p id=\"u20d526d8\">\u76ee\u524d\u6700\u4e3b\u6d41\u7684\u57fa\u4e8e\u7269\u7406\u7684\u955c\u9762\u53cd\u5c04BRDF\u6a21\u578b\u662f\u57fa\u4e8e\u5fae\u5e73\u9762\u7406\u8bba\u7684<strong>Microfacet Cook-Torrance BRDF<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-19-1024x516.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"516\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-19-1024x516.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-673\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-20.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"298\" height=\"99\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-20.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-674\"\/><\/div><\/figure>\n\n\n\n<p id=\"u90f086ef\">\u5176\u4e2d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>D(h) : <\/strong>\u6cd5\u7ebf\u5206\u5e03\u51fd\u6570 \uff08Normal Distribution Function\uff09\uff0c\u63cf\u8ff0\u5fae\u9762\u5143\u6cd5\u7ebf\u5206\u5e03\u7684\u6982\u7387\uff0c\u5373\u6b63\u786e\u671d\u5411\u7684\u6cd5\u7ebf\u7684\u6d53\u5ea6\u3002\u5373\u5177\u6709\u6b63\u786e\u671d\u5411\uff0c\u80fd\u591f\u5c06\u6765\u81ea l \u7684\u5149\u53cd\u5c04\u5230 v \u7684\u8868\u9762\u70b9\u7684\u76f8\u5bf9\u4e8e\u8868\u9762\u9762\u79ef\u7684\u6d53\u5ea6\u3002<\/li>\n\n\n\n<li><strong>F(l,h) :<\/strong> \u83f2\u6d85\u5c14\u65b9\u7a0b\uff08Fresnel Equation\uff09\uff0c\u63cf\u8ff0\u4e0d\u540c\u7684\u8868\u9762\u89d2\u4e0b\u8868\u9762\u6240\u53cd\u5c04\u7684\u5149\u7ebf\u6240\u5360\u7684\u6bd4\u7387\u3002<\/li>\n\n\n\n<li><strong>G(l,v,h) :<\/strong><strong> <\/strong>\u51e0\u4f55\u51fd\u6570\uff08Geometry Function\uff09\uff0c\u63cf\u8ff0\u5fae\u5e73\u9762\u81ea\u6210\u9634\u5f71\u7684\u5c5e\u6027\uff0c\u5373m = h\u7684\u672a\u88ab\u906e\u853d\u7684\u8868\u9762\u70b9\u7684\u767e\u5206\u6bd4\u3002<\/li>\n\n\n\n<li><strong>\u5206\u6bcd 4(n\u00b7l)(n\u00b7v\uff09\uff1a<\/strong>\u6821\u6b63\u56e0\u5b50\uff08correctionfactor\uff09\uff0c\u4f5c\u4e3a\u5fae\u89c2\u51e0\u4f55\u7684\u5c40\u90e8\u7a7a\u95f4\u548c\u6574\u4e2a\u5b8f\u89c2\u8868\u9762\u7684\u5c40\u90e8\u7a7a\u95f4\u4e4b\u95f4\u53d8\u6362\u7684\u5fae\u5e73\u9762\u91cf\u7684\u6821\u6b63\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"CvO0J\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"ikCx0\">1. D\u9879<\/h2>\n\n\n\n<p id=\"u518c3b51\"><strong>D\u9879\u7684\u4f5c\u7528\uff1a<\/strong>\u5b83\u662f\u4e00\u4e2a\u7edf\u8ba1\u5b66\u51fd\u6570\uff0c\u7528\u6765\u8ba1\u7b97\u5728\u7ed9\u5b9a\u7684\u7c97\u7cd9\u5ea6\u4e0b\uff0c<strong>\u7a76\u7adf\u6709\u591a\u5927\u6bd4\u4f8b\u7684\u5fae\u5e73\u9762\uff0c\u5176\u6cd5\u7ebf\u65b9\u5411\u521a\u597d\u671d\u5411 h\uff08\u901a\u8fc7Roughness\u6765\u63a7\u5236\uff09<\/strong><\/p>\n\n\n\n<p id=\"u27681bb1\"><strong>\u7269\u7406\u672c\u8d28\uff1a<\/strong>\u5fae\u5e73\u9762\u6cd5\u7ebf\u671d\u5411 h \u7684\u5bc6\u5ea6\u5206\u5e03<\/p>\n\n\n\n<p id=\"u98573c74\"><strong>\u89c6\u89c9\u8868\u73b0\uff1a<\/strong> \u51b3\u5b9a\u9ad8\u5149\u7684\u5927\u5c0f\u3001\u4eae\u5ea6\u548c\u8870\u51cf\u8fb9\u7f18<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"hlTDx\"\/>\n\n\n\n<p id=\"u3778db7e\">\u6cd5\u7ebf\u5206\u5e03\u51fd\u6570\uff08Normal Distribution Function, NDF\uff09D\u7684\u5e38\u89c1\u6a21\u578b\u53ef\u4ee5\u603b\u7ed3\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Beckmann[1963]<\/li>\n\n\n\n<li>Blinn-Phong[1977]<\/li>\n\n\n\n<li>GGX [2007] \/ Trowbridge-Reitz[1975]<\/li>\n\n\n\n<li>Generalized-Trowbridge-Reitz(GTR) [2012]<\/li>\n\n\n\n<li>Anisotropic Beckmann[2012]<\/li>\n\n\n\n<li>Anisotropic GGX [2015]<\/li>\n<\/ul>\n\n\n\n<p id=\"ud604e6ce\">\u5176\u4e2d\uff0c\u8f83\u4e3a\u4e3b\u6d41\u7684\u6cd5\u7ebf\u5206\u5e03\u51fd\u6570\u662fGGX\uff08Trowbridge-Reitz\uff09\uff0c\u56e0\u4e3a\u5177\u6709\u66f4\u597d\u7684\u9ad8\u5149\u957f\u5c3e\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-21.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"597\" height=\"112\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-21.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-675\"  sizes=\"auto, (max-width: 597px) 100vw, 597px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-2.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"393\" height=\"181\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-2.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-650\"  sizes=\"auto, (max-width: 393px) 100vw, 393px\" \/><\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"r5k8b\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Tqoe4\">2. F\u9879<\/h2>\n\n\n\n<p id=\"u1437450a\">\u83f2\u6d85\u5c14\u6548\u5e94\u63cf\u8ff0\u4e86\u4e00\u4e2a\u666e\u904d\u7684\u7269\u7406\u73b0\u8c61\uff1a<strong>\u4f60\u89c2\u5bdf\u8868\u9762\u7684\u89d2\u5ea6\u8d8a\u5e73\uff08\u63a0\u5c04\u89d2\uff09\uff0c\u8868\u9762\u53cd\u5c04\u7684\u5149\u5c31\u8d8a\u591a\u3002<\/strong><\/p>\n\n\n\n<p id=\"ue9e1f1ce\"><strong>\u800cF\u9879\u5c31\u662f\u7528\u6765\u51b3\u5b9a \u5149\u7ebf\u88ab\u53cd\u5c04\u7684\u6bd4\u4f8b<\/strong><\/p>\n\n\n\n<p id=\"u3d579b7f\">\u5bf9\u4e8e\u83f2\u6d85\u5c14\uff08Fresnel\uff09\u9879\uff0c\u4e00\u822c\u90fd\u91c7\u7528Schlick\u7684Fresnel\u8fd1\u4f3c\uff0c\u56e0\u4e3a\u8ba1\u7b97\u6210\u672c\u4f4e\u5ec9\uff0c\u800c\u4e14\u7cbe\u5ea6\u8db3\u591f\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-22.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"382\" height=\"50\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-22.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-677\"  sizes=\"auto, (max-width: 382px) 100vw, 382px\" \/><\/div><\/figure>\n\n\n\n<p id=\"ub3420c42\">\u6b64\u5904F0\uff1a \u6750\u8d28\u5728\u5782\u76f4\u5165\u5c04\u65f6\u7684\u57fa\u7840\u53cd\u5c04\u7387<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"213\" height=\"85\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-634\"\/><\/div><\/figure>\n\n\n\n<p id=\"ub3420c42\"> \uff0cn\u4ee3\u8868\u4ecb\u8d28\u7684\u6298\u5c04\u7387\uff08\u7a7a\u6c14\u7684\u6298\u5c04\u7387\u4e3a1\uff09<\/p>\n\n\n\n<p id=\"u8d2a69d9\"><strong>F0\u503c\u51b3\u5b9a\u4e86\u955c\u9762\u53cd\u5c04\u5149\u7684\u767e\u5206\u6bd4<\/strong><\/p>\n\n\n\n<p id=\"u947efdaf\"><\/p>\n\n\n\n<p id=\"u98e3e37d\">\u4e0d\u540c\u6750\u8d28\u4e4b\u95f4F0\u7684\u53d6\u503c\u4e0d\u540c\uff1a\uff08\u8be6\u89c1\u67e5\u627e\u8868\uff09<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7535\u4ecb\u8d28 (Dielectrics)\uff1a<\/strong> \u5982\u5851\u6599\u3001\u6728\u5934\u3001\u77f3\u5934\u3001\u6c34\u3002<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>F0 \u7279\u70b9\uff1a<\/strong> \u975e\u5e38\u4f4e\uff080.02~0.05\uff09\u3002<\/li>\n\n\n\n<li><strong>\u53cd\u5c04\u989c\u8272\uff1a<\/strong> \u901a\u5e38\u662f\u5355\u8272\uff08\u7070\u767d\uff09\u7684\u3002<\/li>\n\n\n\n<li><strong>\u89c6\u89c9\u8868\u73b0\uff1a<\/strong> \u76f4\u89c6\u65f6\u51e0\u4e4e\u4e0d\u53cd\u5149\uff0c\u53ea\u6709\u5728\u8fb9\u7f18\u5904\u624d\u4f1a\u770b\u5230\u660e\u663e\u7684\u53cd\u5149\u3002<\/li>\n\n\n\n<li><strong>\u5bfc\u4f53 (Metals)\uff1a<\/strong> \u5982\u91d1\u3001\u94f6\u3001\u94dc\u3002<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>F0 \u7279\u70b9\uff1a<\/strong> \u975e\u5e38\u9ad8\uff08\u901a\u5e38\u57280.5~1.0\uff09\u3002<\/li>\n\n\n\n<li><strong>\u53cd\u5c04\u989c\u8272\uff1a<\/strong> \u5e26\u6709<strong>\u8272\u5f69<\/strong>\uff08\u4f8b\u5982\u9ec4\u91d1\u662f\u6de1\u9ec4\u8272\uff09\u3002<\/li>\n\n\n\n<li><strong>\u89c6\u89c9\u8868\u73b0\uff1a<\/strong> \u65e0\u8bba\u4ece\u4ec0\u4e48\u89d2\u5ea6\u770b\uff0c\u53cd\u5149\u90fd\u975e\u5e38\u5f3a\u70c8\uff0c\u4e14\u53cd\u5149\u5e26\u6709\u91d1\u5c5e\u81ea\u8eab\u7684\u8272\u8c03\u3002<\/li>\n<\/ul>\n\n\n\n<p id=\"udb096554\">\u975e\u91d1\u5c5e\u7684F0\u6570\u503c\u8f83\u5c0f\uff0c\u91d1\u5c5eF0\u7684\u6570\u503c\u8f83\u5927<\/p>\n\n\n\n<p id=\"ud5002d0b\">\u4e3a\u4e86\u7b80\u5316\u8ba1\u7b97\uff0c\u901a\u8fc7\u91d1\u5c5e\u5ea6\u5728\u4e00\u4e2a\u9884\u8bbe\u7684F0\uff080.04\uff09\u548c\u81ea\u8eab\u989c\u8272\u4e4b\u95f4\u7ecf\u884c\u63d2\u503c\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"S1Gz3\"\/>\n\n\n\n<p id=\"ud4e93d98\">\u83f2\u6d85\u5c14\u9879\u7684\u5e38\u89c1\u6a21\u578b\u53ef\u4ee5\u603b\u7ed3\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cook-Torrance [1982]<\/li>\n\n\n\n<li>Schlick [1994]<\/li>\n\n\n\n<li>Gotanta [2014]<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"tgw9t\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"l9Cb8\">3. G\u9879<\/h2>\n\n\n\n<p id=\"ueee58ba7\">G\u9879\u88ab\u79f0\u4e3a<strong>\u51e0\u4f55\u51fd\u6570\uff08Geometry Function\uff09\uff0c<\/strong> \u51e0\u4f55\u9879\u4f53\u73b0\u4e86\u5fae\u8868\u9762\u7684\u81ea\u6211\u906e\u853d\u73b0\u8c61\uff0c\u5373\u5165\u5c04\u5149\u7ebf\u6216\u8005\u53cd\u5c04\u5149\u7ebf\u4f1a\u88ab\u81ea\u8eab\u51f9\u51f8\u4e0d\u5e73\u7684\u8868\u9762\u906e\u853d\u3002<\/p>\n\n\n\n<p id=\"u62ab40c5\">\u4e00\u822c\u800c\u8a00\uff0c\u8fd9\u4e00\u9879\u4e5f\u8ddf\u6750\u8d28\u7684\u7c97\u7cd9\u7a0b\u5ea6\u6709\u5173\uff0c\u53ef\u4ee5\u7406\u89e3\u4e3a\u8d8a\u7c97\u8d85\u7684\u6750\u8d28\u8868\u9762\u8d8a\u6709\u53ef\u80fd\u53d1\u751f\u81ea\u6211\u906e\u853d\u73b0\u8c61\u3002<\/p>\n\n\n\n<p id=\"ufe3131b3\">\u4ece\u89c6\u89c9\u8868\u73b0\u4e0a\u6765\u770b\uff1aG\u9879\u5c31\u51b3\u5b9a\u4e86<strong>\u8fd9\u4e9b\u671d\u5411\u6211\u4eec\u7684\u5fae\u5e73\u9762\u4e2d\uff0c\u6709\u591a\u5c11\u662f\u771f\u6b63\u80fd\u88ab\u770b\u89c1\u4e14\u88ab\u5149\u7167\u5230\u7684<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-23.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"427\" height=\"260\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-23.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-678\"  sizes=\"auto, (max-width: 427px) 100vw, 427px\" \/><\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"Z7hjg\"\/>\n\n\n\n<p id=\"u65e0c86e\">\u51e0\u4f55\u9879G\u7684\u5e38\u89c1\u6a21\u578b\u53ef\u4ee5\u603b\u7ed3\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Smith [1967]<\/li>\n\n\n\n<li>Cook-Torrance [1982]<\/li>\n\n\n\n<li>Neumann [1999]<\/li>\n\n\n\n<li>Kelemen [2001]<\/li>\n\n\n\n<li>Implicit [2013]<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"yjWVr\"\/>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"dRDeY\">\u4e94\u3001\u57fa\u4e8e\u7269\u7406\u7684\u73af\u5883\u5149\u7167\uff08\u95f4\u63a5\u5149\uff09<\/h1>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-24-1024x244.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"244\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-24-1024x244.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-679\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"fu2N7\">1. \u6f2b\u53cd\u5c04<\/h2>\n\n\n\n<p id=\"uc010f2c6\">\u6f2b\u53cd\u5c04\u73af\u5883\u5149\u7167\u90e8\u5206\u4e00\u822c\u91c7\u7528\u4f20\u7edfIBL\u4e2d\u8f89\u5ea6\u73af\u5883\u6620\u5c04\uff08Irradiance Environment Mapping\uff09\u6280\u672f\uff0c\u5e76\u4e0d\u662f\u57fa\u4e8e\u7269\u7406\u7684\u7279\u6709\u65b9\u6848\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"GvP6Z\">2. \u955c\u9762\u53cd\u5c04<\/h2>\n\n\n\n<p id=\"uc7cc9e9d\">\u800c\u57fa\u4e8e\u7269\u7406\u7684\u955c\u9762\u53cd\u5c04\uff08Specular\uff09\u73af\u5883\u5149\u7167\uff0c\u4e00\u822c\u4f1a\u91c7\u7528<strong>\u57fa\u4e8e\u56fe\u50cf\u7684\u5149\u7167\uff08Image Based Lighting, IBL\uff09\u7684\u65b9\u6848<\/strong>\u3002<\/p>\n\n\n\n<p id=\"ue0506731\">\u4e0e\u76f4\u63a5\u5149\u76f8\u6bd4\uff0cIBL\u628a\u5468\u56f4\u73af\u5883\u6574\u4f53\u89c6\u4e3a\u4e00\u4e2a \u5927\u5149\u6e90\uff0cIBL \u901a\u5e38\u4f7f\u7528\uff08\u53d6\u81ea\u73b0\u5b9e\u4e16\u754c\u6216\u4ece3D\u573a\u666f\u751f\u6210\u7684\uff09\u73af\u5883\u7acb\u65b9\u4f53\u8d34\u56fe (Cubemap) \uff0c\u53ef\u4ee5\u5c06\u7acb\u65b9\u4f53\u8d34\u56fe\u7684\u6bcf\u4e2a\u50cf\u7d20\u89c6\u4e3a\u5149\u6e90\uff0c\u5728\u6e32\u67d3\u65b9\u7a0b\u4e2d\u76f4\u63a5\u4f7f\u7528\u5b83\u3002<\/p>\n\n\n\n<p id=\"uec8dbd3f\">\u8981\u5c06\u57fa\u4e8e\u7269\u7406\u7684BRDF\u6a21\u578b\u4e0e\u57fa\u4e8e\u56fe\u50cf\u7684\u5149\u7167\uff08IBL\uff09\u4e00\u8d77\u4f7f\u7528\uff0c\u9700\u8981\u6c42\u89e3\u5149\u4eae\u5ea6\u79ef\u5206\uff08Radiance Integral\uff09\uff0c\u800c\u6c42\u89e3\u5149\u4eae\u5ea6\u79ef\u5206\u901a\u5e38\u4f1a\u4f7f\u7528\u91cd\u8981\u6027\u91c7\u6837\uff08Importance Sample\uff09\u3002<\/p>\n\n\n\n<p id=\"u937e2ded\">\u91cd\u8981\u6027\u91c7\u6837\uff08Importance Sample\uff09\u5373\u901a\u8fc7\u73b0\u6709\u7684\u4e00\u4e9b\u5df2\u77e5\u6761\u4ef6\uff08\u5206\u5e03\u51fd\u6570\uff09\uff0c\u60f3\u529e\u6cd5\u96c6\u4e2d\u4e8e\u88ab\u79ef\u51fd\u6570\u5206\u5e03\u53ef\u80fd\u6027\u8f83\u9ad8\u7684\u533a\u57df(\u91cd\u8981\u7684\u533a\u57df)\u8fdb\u884c\u91c7\u6837\uff0c\u8fdb\u800c\u53ef\u9ad8\u6548\u5730\u8ba1\u7b97\u51c6\u786e\u7684\u4f30\u7b97\u7ed3\u679c\u7684\u7684\u4e00\u79cd\u7b56\u7565\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"Dfrgc\"><strong>\u5206\u89e3\u6c42\u548c\u8fd1\u4f3c\uff08Split Sum Approximation\uff09<\/strong><\/h3>\n\n\n\n<p id=\"u8f02ce6b\">\u57fa\u4e8e\u91cd\u8981\u6027\u91c7\u6837\u7684\u601d\u8def\uff0c\u5c06\u8499\u7279\u5361\u6d1b\u79ef\u5206\u516c\u5f0f\u4ee3\u5165\u6e32\u67d3\u65b9\u7a0b\u53ef\u5f97\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-25.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"463\" height=\"80\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-25.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-680\"  sizes=\"auto, (max-width: 463px) 100vw, 463px\" \/><\/div><\/figure>\n\n\n\n<p id=\"ufd0f6a03\">\u4e0a\u5f0f\u7684\u76f4\u63a5\u6c42\u89e3\u8f83\u4e3a\u590d\u6742\uff0c\u8fdb\u884c\u5b8c\u5168\u7684\u5b9e\u65f6\u6e32\u67d3\u4e0d\u592a\u73b0\u5b9e\u3002<\/p>\n\n\n\n<p id=\"udbabcb8a\">\u56e0\u6b64\u57fa\u4e8e\u5206\u89e3\u6c42\u548c\u8fd1\u4f3c\u7684\u601d\u8def\uff0c\u5c06\u4e0a\u5f0f\u8fdb\u884c\u62c6\u5206\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-26.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"621\" height=\"79\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-26.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-681\"  sizes=\"auto, (max-width: 621px) 100vw, 621px\" \/><\/div><\/figure>\n\n\n\n<p id=\"u440472ff\">\u5b8c\u6210\u62c6\u5206\u540e\uff0c\u5206\u522b\u5bf9\u4e24\u9879\u8fdb\u884c\u79bb\u7ebf\u9884\u8ba1\u7b97\uff0c\u53bb\u5339\u914d\u79bb\u7ebf\u6e32\u67d3\u53c2\u8003\u503c\u7684\u6e32\u67d3\u7ed3\u679c<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"I6kfd\">\u7b2c\u4e00\u9879 \u9884\u8fc7\u6ee4\u73af\u5883\u8d34\u56fe<\/h4>\n\n\n\n<p id=\"u11e0bb48\">\u7b2c\u4e00\u9879\u53ef\u4ee5\u7406\u89e3\u4e3a\u5bf9\u5149\u4eae\u5ea6\u6c42\u5747\u503c<\/p>\n\n\n\n<p id=\"u24ea77ad\">\u4e3b\u8981\u501f\u52a9\u9884\u8fc7\u6ee4\u73af\u5883\u8d34\u56fe\uff0c\u7528\u591a\u7ea7\u6a21\u7cca\u7684mipmap\u6765\u5b58\u50a8\u6a21\u7cca\u7684\u73af\u5883\u9ad8\u5149:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-27.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"359\" height=\"74\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-27.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-682\"  sizes=\"auto, (max-width: 359px) 100vw, 359px\" \/><\/div><\/figure>\n\n\n\n<p id=\"ud4952799\">\u4e5f\u5c31\u662f\u8bf4\uff0c\u7b2c\u4e00\u9879\u76f4\u63a5\u4f7f\u7528cubemap \u7684mip\u7ea7\u522b\u91c7\u6837\u8f93\u5165\u5373\u53ef\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"nidX2\">\u7b2c\u4e8c\u9879 \u73af\u5883BRDF<\/h4>\n\n\n\n<p id=\"u13a20116\">\u7b2c\u4e8c\u9879\u4e3a\u955c\u9762\u53cd\u5c04\u9879\u7684\u534a\u7403\u65b9\u5411\u53cd\u5c04\u7387\uff0c\u53ef\u4ee5\u7406\u89e3\u4e3a\u73af\u5883BRDF<\/p>\n\n\n\n<p id=\"u2fb58865\">\u8fd9\u4e00\u9879\u7684\u4e3b\u8981\u6d41\u6d3e\u6709\u4e24\u4e2a\uff0cUE4\u76842D LUT\uff0c\u4ee5\u53caCOD\uff1aOP2\u7684\u89e3\u6790\u62df\u5408\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"EZZhi\">\u6d41\u6d3e1\uff1a2D LUT<\/h5>\n\n\n\n<p id=\"uadb093c0\">\u4f7f\u7528Schlick\u8fd1\u4f3c\u540e\uff0c F0\u53ef\u4ee5\u4ece\u79ef\u5206\u4e2d\u5206\u51fa\u6765\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-28.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"596\" height=\"135\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-28.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-683\"  sizes=\"auto, (max-width: 596px) 100vw, 596px\" \/><\/div><\/figure>\n\n\n\n<p id=\"u276f57be\">\u6211\u4eec\u9884\u5148\u8ba1\u7b97\u6b64\u51fd\u6570\u7684\u7ed3\u679c\u5e76\u5c06\u5176\u5b58\u50a8\u57282D\u67e5\u627e\u7eb9\u7406\uff08LUT\uff0clook-up texture\uff09\u4e2d<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-29.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"349\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-29.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-684\"  sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><\/div><\/figure>\n\n\n\n<p id=\"ub3a340e1\">\u8fd9\u5f20\u7ea2\u7eff\u8272\u7684\u8d34\u56fe\uff0c\u8f93\u5165roughness\u3001cos\u03b8\uff0c\u8f93\u51fa\u73af\u5883BRDF\u955c\u9762\u53cd\u5c04\u7684\u5f3a\u5ea6<\/p>\n\n\n\n<p id=\"u0d32bc2c\">\u5177\u4f53\u7684\u53d6\u51fa\u65b9\u5f0f\u4e3a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-30.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"418\" height=\"80\" data-original=\"https:\/\/www.s7arry.top\/wp-content\/uploads\/2026\/03\/image-30.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-685\"  sizes=\"auto, (max-width: 418px) 100vw, 418px\" \/><\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"QfvnW\"\/>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"PJsM7\">\u6d41\u6d3e2\uff1a\u89e3\u6790\u62df\u5408<\/h5>\n\n\n\n<p id=\"u26c9b303\">\u901a\u8fc7\u6570\u5b66\u5de5\u5177\u4e2d\u7684\u6570\u503c\u79ef\u5206\u62df\u5408\u51fa\u66f2\u7ebf\uff0c\u5373\u5c06UE4\u79bb\u7ebf\u8ba1\u7b97\u7684\u8fd9\u5f202D LUT\u7528\u5982\u4e0b\u51fd\u6570\u8fdb\u884c\u4e86\u62df\u5408\uff1a<\/p>\n\n\n\n<pre id=\"pUbhZ\" class=\"wp-block-code\"><code>float3 EnvDFGLazarov( float3 specularColor, float gloss, float ndotv )\n{\n    float4 p0 = float4( 0.5745, 1.548, -0.02397, 1.301 );\n    float4 p1 = float4( 0.5753, -0.2511, -0.02066, 0.4755 );\n    float4 t = gloss * p0 + p1;\n    float bias = saturate( t.x * min( t.y, exp2( -7.672 * ndotv ) ) + t.z );\n    float delta = saturate( t.w );\n    float scale = delta - bias;\n    bias *= saturate( 50.0 * specularColor.y );\n    return specularColor * scale + bias;\n}<\/code><\/pre>\n\n\n\n<p id=\"ue982bc95\">\u4e0a\u5f0f\u4e2d\u7684specularColor\u5373F0<\/p>\n\n\n\n<p id=\"u3e528e28\">EnvironmentBRDF\u51fd\u6570\u7684\u8f93\u5165\u53c2\u6570\u5206\u522b\u4e3a\u5149\u6cfd\u5ea6gloss\uff0cNdotV\uff0cF0\u3002\u548cUE4\u7684\u505a\u6cd5\u6709\u5f02\u66f2\u540c\u5de5\u4e4b\u5999\uff0c\u4f46COD\uff1aBlack Ops 2\u7684\u505a\u6cd5\u4e0d\u9700\u8981\u989d\u5916\u7684\u8d34\u56fe\u91c7\u6837\uff0c\u8fd9\u5728\u8fdb\u884c\u79fb\u52a8\u7aef\u4f18\u5316\u65f6\uff0c\u662f\u4e0d\u9519\u7684\u9009\u62e9\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"ZZGOr\"\/>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"U3v4p\">\u5176\u4ed6\u65b9\u6848<\/h5>\n\n\n\n<p id=\"u77950f9d\">3D LUT<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"khSXc\"\/>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"krnvB\">\u516d\u3001\u603b\u7ed3<\/h1>\n\n\n\n<p id=\"u837914b2\">\u6839\u636e\u6bdb\u661f\u4e91\u5927\u4f6c\u7684\u6587\u7ae0\uff0c\u5bf9PBR\u7684\u7406\u8bba\u77e5\u8bc6\u8fdb\u884c\u4e86\u4e00\u4e2a\u603b\u7ed3\u3002<\/p>\n\n\n\n<p id=\"ub4080ca6\">\u4e3b\u8981\u5c31\u662f\u5f88\u591a\u5f88\u591a\u7684\u516c\u5f0f\u548c\u6570\u5b66\u3001\u7269\u7406\u3001\u56fe\u5f62\u5b66\uff1b<\/p>\n\n\n\n<p id=\"ub2069b16\">\u4e2d\u95f4\u7565\u53bb\u4e86\u4e00\u4e9b\u4e2a\u4eba\u8ba4\u4e3a\u6ca1\u90a3\u4e48\u91cd\u70b9\u7684\u5185\u5bb9\uff0c\u540e\u9762\u5177\u4f53\u7684\u5b9e\u73b0\u770b\u5b9e\u6218\u7bc7<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" id=\"StXj0\"\/>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"zN2j5\">\u53c2\u8003<\/h1>\n\n\n\n<p id=\"u6f06d891\"><a href=\"https:\/\/zhuanlan.zhihu.com\/p\/53086060\" target=\"_blank\" rel=\"noreferrer noopener\">\u3010\u57fa\u4e8e\u7269\u7406\u7684\u6e32\u67d3\uff08PBR\uff09\u767d\u76ae\u4e66\u3011\uff08\u4e00\uff09 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noopener\">\u3010\u57fa\u4e8e\u7269\u7406\u7684\u6e32\u67d3\uff08PBR\uff09\u767d\u76ae\u4e66\u3011\uff08\u56db\uff09\u6cd5\u7ebf\u5206\u5e03\u51fd\u6570\u76f8\u5173\u603b\u7ed3<\/a><\/p>\n\n\n\n<p id=\"u12379620\"><a href=\"https:\/\/zhuanlan.zhihu.com\/p\/81708753\" target=\"_blank\" rel=\"noreferrer noopener\">\u3010\u57fa\u4e8e\u7269\u7406\u7684\u6e32\u67d3\uff08PBR\uff09\u767d\u76ae\u4e66\u3011\uff08\u4e94\uff09\u51e0\u4f55\u51fd\u6570\u76f8\u5173\u603b\u7ed3<\/a><\/p>\n\n\n\n<p id=\"u95b96e1f\"><a href=\"https:\/\/zhuanlan.zhihu.com\/p\/545848268\" target=\"_blank\" rel=\"noreferrer noopener\">\u7531\u6d45\u5165\u6df1\u5b66\u4e60PBR\u7684\u539f\u7406\u548c\u5b9e\u73b0<\/a><\/p>\n\n\n\n<p id=\"ue115f7d1\">Games101\u7b14\u8bb0\uff1a<\/p>\n\n\n\n<p id=\"ub425d65c\"><a href=\"https:\/\/www.yuque.com\/starry-zvpk0\/aygygr\/bdqrlv96kw43hkbo\" target=\"_blank\" rel=\"noreferrer noopener\">L13&amp;14&amp;15&amp;16\uff1aRay Tracing<\/a><\/p>\n\n\n\n<p id=\"u064f68ee\"><a href=\"https:\/\/www.yuque.com\/starry-zvpk0\/aygygr\/gmbh6p7r3m9s3n22#FUjZM\" target=\"_blank\" rel=\"noreferrer noopener\">L17\uff1aMaterials&amp;Appearances<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u535a\u5ba2\u4e2d\u6392\u7248\u53ef\u80fd\u770b\u7740\u6ca1\u90a3\u4e48\u8212\u670d\uff0c\u53ef\u4ee5\u770b\u8bed\u96c0\uff1aPBR \u5b66\u4e60\u603b\u7ed3\uff1a\u7406\u8bba\u7bc7 \u96f6\u3001\u524d\u8a00 1. \u4ec0\u4e48\u662fPBR PBR\u5168\u79f0P [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":628,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[17],"class_list":["post-627","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-11","tag-17"],"_links":{"self":[{"href":"https:\/\/www.s7arry.top\/index.php\/wp-json\/wp\/v2\/posts\/627","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.s7arry.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.s7arry.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.s7arry.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.s7arry.top\/index.php\/wp-json\/wp\/v2\/comments?post=627"}],"version-history":[{"count":20,"href":"https:\/\/www.s7arry.top\/index.php\/wp-json\/wp\/v2\/posts\/627\/revisions"}],"predecessor-version":[{"id":686,"href":"https:\/\/www.s7arry.top\/index.php\/wp-json\/wp\/v2\/posts\/627\/revisions\/686"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.s7arry.top\/index.php\/wp-json\/wp\/v2\/media\/628"}],"wp:attachment":[{"href":"https:\/\/www.s7arry.top\/index.php\/wp-json\/wp\/v2\/media?parent=627"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.s7arry.top\/index.php\/wp-json\/wp\/v2\/categories?post=627"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.s7arry.top\/index.php\/wp-json\/wp\/v2\/tags?post=627"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}