{"id":311,"date":"2024-11-23T01:02:21","date_gmt":"2024-11-22T17:02:21","guid":{"rendered":"http:\/\/chenglixue.top\/?p=311"},"modified":"2024-11-23T01:02:21","modified_gmt":"2024-11-22T17:02:21","slug":"%e5%ae%9e%e6%97%b6%e7%9c%bc%e7%90%83%e6%b8%b2%e6%9f%93","status":"publish","type":"post","link":"http:\/\/chenglixue.top\/?p=311","title":{"rendered":"\u5b9e\u65f6\u773c\u7403\u6e32\u67d3"},"content":{"rendered":"<p><div class=\"has-toc have-toc\"><\/div><\/p>\n<h1>\u773c\u775b\u6784\u9020<\/h1>\n<p>\u751f\u7269\u5b66\u773c\u775b\u7684\u6784\u9020\u662f\u5f88\u590d\u6742\u7684\uff0c\u5305\u542b\u5341\u591a\u79cd\u90e8\u4f4d\uff0c\u4f46\u5728\u6e32\u67d3\u4e2d\u53ea\u9700\u8981\u4e86\u89e3\u516d\u4e2a\u90e8\u4f4d\u5373\u53ef\uff1a<\/p>\n<ul>\n<li>Sclera\uff08\u5de9\u819c\uff09\uff1a\u773c\u7403\u8868\u5c42\u7684\u767d\u8272\u7ea4\u7ef4\u819c\uff0c\u575a\u97e7\u8010\u538b\uff0c\u6709\u652f\u6491\u548c\u4fdd\u62a4\u773c\u7403\u5185\u90e8\u7ec4\u7ec7\u7684\u4f5c\u7528\uff08\u773c\u775b\u7684\u767d\u8272\u90e8\u5206\uff09<\/li>\n<li>Limbus\uff08\u89d2\u819c\u7f18\uff09\uff1a\u89d2\u819c\u540c\u5de9\u819c\u4e4b\u95f4\u7684\u4e00\u6761\u7070\u767d\u8272\u8fc7\u6e21\u5e26\uff0c\u662f\u89d2\u819c\u4e0e\u5de9\u819c\u7684\u79fb\u884c\u533a\uff0c\u89d2\u819c\u9576\u5d4c\u5728\u5de9\u819c\u800c\u9010\u6e10\u8fc7\u6e21\u5230\u5de9\u819c\u7ec4\u7ec7\u5185\u3002\u5176\u5bbd\u5ea6\u4e5f\u4e0d\u4e00\u81f4\uff0c\u4e0a\u7f18\u8f83\u5bbd\uff0c\u4e0b\u7f18\u6b21\u4e4b\uff0c\u6c34\u5e73\u7f18\u66f4\u7a84<\/li>\n<li>Cornea\uff08\u89d2\u819c\uff09\uff1a\u4eba\u548c\u67d0\u4e9b\u52a8\u7269\u773c\u7403\u524d\u65b9\u6700\u5916\u9762\u7684\u4e00\u5c42\u7ea4\u7ef4\u819c\u3002\u65e0\u8272\u900f\u660e\uff0c\u6ca1\u6709\u8840\u7ba1\uff0c\u53cd\u5e94\u7075\u654f\uff08\u6298\u5c04\u6e90\u5934\uff09<\/li>\n<li>Iris\uff08\u8679\u819c\/\u8679\u5f69\uff09\uff1a\u773c\u7403\u524d\u90e8\u89d2\u819c\u548c\u6676\u72b6\u4f53\u4e4b\u95f4\u542b\u8272\u7d20\u7684\u73af\u5f62\u8584\u819c\u3002\u819c\u7684\u4e2d\u95f4\u662f\u77b3\u5b54\uff08\u773c\u775b\u7684\u5f69\u8272\u90e8\u5206\uff09<\/li>\n<li>Pupil\uff08\u77b3\u5b54\uff09\uff1a\u773c\u7403\u8679\u819c\u4e2d\u592e\u8fdb\u5149\u7684\u5706\u5b54\uff0c\u53ef\u4ee5\u968f\u5149\u7ebf\u7684\u5f3a\u5f31\u800c\u7f29\u5c0f\u6216\u6269\u5927\uff08\u8679\u819c\u5185\u7684\u9ed1\u8272\u90e8\u5206\uff09<\/li>\n<li>Aqueous Humor\uff08\u773c\u623f\u6c34\uff09\uff1a\u773c\u7403\u6676\u72b6\u4f53\u548c\u89d2\u819c\u4e4b\u95f4\u7684\u900f\u660e\u6db2\u4f53\uff0c\u7531\u776b\u72b6\u4f53\u7684\u65e0\u8272\u7d20\u4e0a\u76ae\u7ec6\u80de\u5206\u6ccc<\/li>\n<\/ul>\n<p><img decoding=\"async\"   class=\"lazyload\" data-src=\"https:\/\/a1.boltp.com\/2024\/11\/21\/673f424da7e8f.png\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"1732198985156.png\" \/><\/p >\n<noscript><img decoding=\"async\" src=\"https:\/\/a1.boltp.com\/2024\/11\/21\/673f424da7e8f.png\" alt=\"1732198985156.png\" \/><\/p><\/noscript>\n<h1>\u6e32\u67d3\u65b9\u6848<\/h1>\n<p>\u4f20\u7edf\u65b9\u6cd5\u662f\u521b\u5efa<strong>\u4e24\u5c42\u72ec\u7acb\u7684\u773c\u775b\u8868\u9762\uff0c\u4e00\u5c42\u63d0\u4f9b\u5de9\u819c\u3001\u8679\u819c\u548c\u77b3\u5b54\uff0c\u53e6\u4e00\u5c42\u4f4d\u4e8e\u9876\u90e8\uff0c\u63d0\u4f9b\u89d2\u819c\u548c\u773c\u775b\u7684\u603b\u4f53\u6e7f\u6da6\u5ea6<\/strong>\u3002\u8fd9\u6837\u5e95\u5c42\u8868\u9762\u900f\u8fc7\u6e7f\u6da6\u5c42\u89c2\u770b\u65f6\u5c31\u4f1a\u4ea7\u751f\u6298\u5c04<\/p>\n<p>\u7b80\u5355\u6765\u8bf4\uff0c\u8981\u60f3\u5f97\u5230\u6548\u679c\u4e0d\u9519\u7684\u773c\u775b\uff0c\u9700\u7740\u91cd\u5173\u6ce8\uff1a<\/p>\n<ul>\n<li>\u89d2\u819c\u7684\u534a\u900f\u548c\u9ad8\u5149\u53cd\u5c04<\/li>\n<li>\u77b3\u5b54\u7684\u6b21\u8868\u9762\u6563\u5c04<\/li>\n<li>\u77b3\u5b54\u7684\u7f29\u653e\uff08\u9ad8\u5149\u5f3a\u5ea6\uff09<\/li>\n<li>\u8679\u819c\u7684\u989c\u8272\u53d8\u5316\uff08\u9ad8\u5149\u989c\u8272\uff09<\/li>\n<\/ul>\n<h2>Cornea<\/h2>\n<p>\u8fd9\u91cc\u9700\u8981\u5b9e\u73b0\u89d2\u819c\u7684\u534a\u900f\u660e\u548c\u9ad8\u5149\u53cd\u5c04\u6548\u679c\uff0c\u56e0\u6b64\u9700\u8981\u8ba1\u7b97<strong>\u9ad8\u5149\u955c\u9762\u53cd\u5c04\u3001IBL\u53cd\u5c04<\/strong>\uff0c\u5e76\u5728basecolor\u4e2d\u52a0\u5165\u8679\u819c\u8d34\u56fe\u4ee5\u5b9e\u73b0\u89d2\u819c\u4e0b\u9762\u7684\u6298\u5c04\u6548\u679c<\/p>\n<p><img decoding=\"async\"   class=\"lazyload\" data-src=\"https:\/\/a1.boltp.com\/2024\/11\/21\/673f50508f4fd.png\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"1732202571882.png\" \/><\/p >\n<noscript><img decoding=\"async\" src=\"https:\/\/a1.boltp.com\/2024\/11\/21\/673f50508f4fd.png\" alt=\"1732202571882.png\" \/><\/p><\/noscript>\n<h2>Pupil<\/h2>\n<h3>\u6b21\u8868\u9762\u6563\u5c04<\/h3>\n<p>\u628a\u773c\u7403\u770b\u6210\u53cc\u5c42\u7ed3\u6784\uff0c<strong>\u5916\u5c42\u662f\u89d2\u819c<\/strong>\uff0c<strong>\u5185\u5c42\u662f\u77b3\u5b54\u7684\u8868\u9762<\/strong>\uff0c\u89d2\u819c\u548c\u77b3\u5b54\u95f4\u53ef\u4ee5\u8ba4\u4e3a\u5145\u65a5\u7740\u900f\u660e\u6db2\u4f53\u3002\u53c8\u56e0\u4e3a\u77b3\u5b54\u548c\u89d2\u819c\u95f4\u6709\u4e00\u5b9a\u7684\u8ddd\u79bb\uff0c\u56e0\u6b64\u4f1a\u4ea7\u751f\u6563\u5c04\u3002\u4e14\u5f53\u5149\u7ebf\u5230\u8fbe\u77b3\u5b54\u8868\u9762\u7684\u65f6\u5019\uff0c\u8fd8\u4f1a\u8fdb\u4e00\u6b65\u5728\u77b3\u5b54\u7ed3\u6784\u5185\u90e8\u53d1\u751f\u6b21\u8868\u9762\u6563\u5c04<\/p>\n<p><img decoding=\"async\"   class=\"lazyload\" data-src=\"https:\/\/a1.boltp.com\/2024\/11\/21\/673f4e2466fab.jpg\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"1732202015740.jpg\" \/><\/p >\n<noscript><img decoding=\"async\" src=\"https:\/\/a1.boltp.com\/2024\/11\/21\/673f4e2466fab.jpg\" alt=\"1732202015740.jpg\" \/><\/p><\/noscript>\n<p>\u5149\u7ebf\u5728\u8fdb\u5165\u77b3\u5b54\u5185\u90e8\u524d\uff0c\u4f1a\u5148\u5728\u89d2\u819c\u7684\u8868\u9762<strong>\u6298\u5c04<\/strong>\uff0c\u518d\u8fdb\u5165\u77b3\u5b54\u5185\u90e8\uff0c\u4ea7\u751f<strong>\u6563\u5c04<\/strong>\uff0c\u6700\u540e\u4ece\u77b3\u5b54\u8868\u9762\u7684\u53e6\u4e00\u4e2a\u70b9<strong>\u6563\u5c04<\/strong>\u51fa\u6765\u3002\u8fd9\u91cc\u5c31\u6d89\u53ca\u5230\u4e86\u4e24\u4e2a\u95ee\u9898\uff1a<\/p>\n<ol>\n<li>\u5149\u6253\u5728\u89d2\u819c\u8868\u9762\u6298\u5c04\u540e\uff0c\u5982\u4f55\u8ba1\u7b97<strong>\u5165\u5c04\u5230\u77b3\u5b54\u8868\u9762<\/strong><\/li>\n<li>\u5149\u7ebf\u6298\u5c04\u8fdb<strong>\u89d2\u819c\u5185\u90e8<\/strong>\u540e\uff0c\u5982\u4f55\u8ba1\u7b97\u5176\u6563\u5c04\u6548\u679c<\/li>\n<\/ol>\n<p>\u89e3\u51b3\u65b9\u6848\u662f<strong>\u6b21\u8868\u9762\u7eb9\u7406\u6620\u5c04<\/strong>\uff08Subsurface texture mapping\uff09\uff0c\u7528\u4e8e\u89e3\u51b3<strong>\u591a\u5c42\u539a\u5ea6\u4e0d\u5747\u5300<\/strong>\u7684\u6750\u8d28\u7684<strong>\u6b21\u8868\u9762\u6563\u5c04<\/strong>\u8ba1\u7b97<\/p>\n<p>\u6bcf\u5c42\u5355\u72ec\u7684\u6750\u8d28\u7528<strong>\u5355\u72ec\u7684\u6df1\u5ea6\u56fe<\/strong>\u53bb\u5b58\u50a8\uff0c\u5e76\u6bcf\u5c42\u5355\u72ec\u7684\u6750\u8d28\u88ab\u8ba4\u4e3a\u662f<strong>\u5747\u5300\u7684<\/strong>\uff0c\u62e5\u6709<strong>\u76f8\u540c\u7684\u6563\u5c04\u3001\u5438\u6536\u7cfb\u6570\u4ee5\u53ca\u76f8\u5e94\u7684\u76f8\u4f4d\u51fd\u6570<\/strong>\u3002\u968f\u540e\uff0c\u4ee5<strong>\u89c6\u7ebf\u548c\u7b2c\u4e00\u5c42\u6750\u8d28\u7684\u4ea4\u70b9\u4e3a\u8d77\u70b9<\/strong>\uff0c\u6cbf\u7740<strong>\u89c6\u7ebf\u65b9\u5411<\/strong>\u5bf9\u591a\u5c42\u6750\u8d28\u8fdb\u884c<strong>raymarching<\/strong>\uff0c\u6bcf\u884c\u8fdb\u4e00\u6b65<strong>\u6839\u636e\u4f4d\u7f6e\u548c\u6df1\u5ea6\u56fe\u8ba1\u7b97\u5f53\u524d\u70b9\u4f4d\u4e8e\u6750\u8d28\u7684\u54ea\u4e00\u5c42<\/strong>\u3001<strong>\u5bf9\u5e94\u7684\u6563\u5c04\u53c2\u6570<\/strong>\uff0c\u518d\u6839\u636e\u4e0a\u4e00\u6b65\u7684\u4f4d\u7f6e\u548c\u5149\u7167\u65b9\u5411\u8ba1\u7b97\u6563\u5c04\u548c\u5438\u6536\uff0c\u76f4\u5230ray-marching\u7ed3\u675f\u3002\u4f46\u5b9e\u9645\u8ba1\u7b97\u65f6\uff0c\u53ea\u6709\u4e00\u5c42\u6563\u5c04\u6750\u8d28\uff0c\u5373\u77b3\u5b54\u6750\u8d28\u3002\u56e0\u6b64\u53ea\u9700\u8981\u63d0\u4f9b\u77b3\u5b54\u8868\u9762\u7684\u6df1\u5ea6\u56fe\uff0c\u5e76\u8bbe\u5b9a\u597d\u77b3\u5b54\u6750\u8d28\u7684\u76f8\u5173\u6563\u5c04\u53c2\u6570\uff0c\u518d\u7ed3\u5408\u6b21\u8868\u9762\u7eb9\u7406\u6620\u5c04\u7684\u65b9\u6cd5\u8ba1\u7b97\u5373\u53ef<\/p>\n<p>\u4e3a\u4e86\u8ba9\u77b3\u5b54\u7684\u6548\u679c\u66f4\u903c\u771f\uff0c\u5728RayMarching\u65f6\u914d\u5408<strong>\u89c6\u5dee\u8d34\u56fe<\/strong>\u6280\u672f\u3002\u5f53\u7136\u89c6\u5dee\u8d34\u56fe\u662f\u975e\u7269\u7406\u7684\uff0c\u60f3\u5b9e\u73b0\u7269\u7406\u7684\u6548\u679c\u53ef\u4ee5\u4f7f\u7528<strong>\u57fa\u4e8e\u7269\u7406\u7684\u6298\u5c04<\/strong>\u3002\u4e0b\u56fe\u5de6\u8fb9\u662f\u89c6\u5dee\u8d34\u56fe\uff0c\u53f3\u8fb9\u662f\u57fa\u4e8e\u7269\u7406\u7684\u6298\u5c04<\/p>\n<p><img decoding=\"async\"   class=\"lazyload\" data-src=\"https:\/\/a1.boltp.com\/2024\/11\/21\/673f554a02d11.png\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"1732203845198.png\" \/><\/p >\n<noscript><img decoding=\"async\" src=\"https:\/\/a1.boltp.com\/2024\/11\/21\/673f554a02d11.png\" alt=\"1732203845198.png\" \/><\/p><\/noscript>\n<h3>\u7f29\u653e<\/h3>\n<p>\u7f29\u653e\u53ef\u4ee5\u901a\u8fc7\u6a21\u578b\u7684uv\u6765\u63a7\u5236<\/p>\n<p><img decoding=\"async\"   class=\"lazyload\" data-src=\"https:\/\/a1.boltp.com\/2024\/11\/21\/673f55d5c020b.png\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"1732203985190.png\" \/><\/p >\n<noscript><img decoding=\"async\" src=\"https:\/\/a1.boltp.com\/2024\/11\/21\/673f55d5c020b.png\" alt=\"1732203985190.png\" \/><\/p><\/noscript>\n<h2>Iris<\/h2>\n<p>\u8679\u819c\u7684\u989c\u8272\u5b9e\u73b0\u6bd4\u8f83\u7b80\u5355\u3002\u4f7f\u7528\u8679\u819c\u7684\u7070\u5ea6\u56fe\uff0c\u5e76\u4e58\u4ee5\u8679\u819c\u989c\u8272\u6765\u5b9e\u73b0<\/p>\n<p><img decoding=\"async\"   class=\"lazyload\" data-src=\"https:\/\/a1.boltp.com\/2024\/11\/21\/673f5711de124.png\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"1732204300829.png\" \/><\/p >\n<noscript><img decoding=\"async\" src=\"https:\/\/a1.boltp.com\/2024\/11\/21\/673f5711de124.png\" alt=\"1732204300829.png\" \/><\/p><\/noscript>\n<h2>\u4e0d\u5e73\u5766\u53cd\u5c04<\/h2>\n<p>\u771f\u5b9e\u7684\u773c\u767d\u4e0d\u662f\u5b8c\u5168\u955c\u9762\u5e73\u5766\u7684\uff0c\u6709\u4e00\u5b9a\u7a0b\u5ea6\u7684\u51f9\u51f8\u4e0d\u5e73\uff0c\u53ef\u4ee5\u901a\u8fc7\u7c7b<strong>Sin\u51fd\u6570\u6270\u52a8\u6cd5\u7ebf\u8d34\u56fe<\/strong>\u6765\u6a21\u62df<\/p>\n<p><img decoding=\"async\"   class=\"lazyload\" data-src=\"https:\/\/a1.boltp.com\/2024\/11\/21\/673f584015857.png\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"1732204602961.png\" \/><\/p >\n<noscript><img decoding=\"async\" src=\"https:\/\/a1.boltp.com\/2024\/11\/21\/673f584015857.png\" alt=\"1732204602961.png\" \/><\/p><\/noscript>\n<h2>\u773c\u775b\u81ea\u53cd\u5c04<\/h2>\n<p>\u7531\u4e8e\u773c\u7403\u5177\u4f53\u8f83\u5f3a\u7684\u53cd\u5c04\uff0c\u776b\u6bdb\u3001\u773c\u76ae\u4f1a\u53cd\u5c04\u5728\u4e0a\u9762<\/p>\n<p>\u8fd9\u90e8\u5206\u53ef\u4ee5\u4f7f\u7528<strong>\u53cd\u5c04\u63a2\u9488<\/strong>\u89e3\u51b3\uff0c\u4e5f\u53ef\u4ee5\u63d0\u524d\u70d8\u7119<strong>\u73af\u5883\u906e\u853d\u56fe<\/strong>\u8fdb\u884c\u6df7\u5408\u5904\u7406<\/p>\n<h2>\u77b3\u5b54\u3001\u8679\u819c\u3001\u5de9\u819c\u7684\u8fc7\u6e21<\/h2>\n<p>\u7531\u4e8e\u5b83\u4eec\u5206\u5c5e\u4e0d\u540c\u7684\u6750\u8d28\uff0c\u6709\u7740\u5404\u81ea\u7684\u5c5e\u6027\uff0c\u9700\u8981\u5bf9\u5b83\u4eec\u8fdb\u884c\u8fc7\u6e21\u5904\u7406\u3002\u5426\u5219\u4f1a\u51fa\u73b0\u4ee5\u4e0b\u60c5\u51b5\uff1a<\/p>\n<p><img decoding=\"async\"   class=\"lazyload\" data-src=\"https:\/\/a1.boltp.com\/2024\/11\/22\/673f5a7574aea.png\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"1732205168577.png\" \/><\/p >\n<noscript><img decoding=\"async\" src=\"https:\/\/a1.boltp.com\/2024\/11\/22\/673f5a7574aea.png\" alt=\"1732205168577.png\" \/><\/p><\/noscript>\n<p>\u8fc7\u6e21\u66f2\u7ebf\u53ef\u91c7\u7528\u7c7b\u4f3cSin\u51fd\u6570\u7684\uff1a<\/p>\n<p><img decoding=\"async\"   class=\"lazyload\" data-src=\"https:\/\/a1.boltp.com\/2024\/11\/22\/673f5aaed98da.png\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"1732205226420.png\" \/><\/p >\n<noscript><img decoding=\"async\" src=\"https:\/\/a1.boltp.com\/2024\/11\/22\/673f5aaed98da.png\" alt=\"1732205226420.png\" \/><\/p><\/noscript>\n<h2>\u8840\u8272\u548c\u8840\u4e1d<\/h2>\n<p>\u8840\u4e1d\u53ef\u5728<strong>\u773c\u767d\u7684\u7eb9\u7406<\/strong>\u4e2d\u6dfb\u52a0\u8840\u7ba1\u7eb9\u7406\u7ec6\u8282<\/p>\n<p>\u8840\u8272\u53ef\u5728\u8ba1\u7b97\u65f6\u7528\u4e00\u4e2acolor\u4e58\u4ee5Mask\u8d34\u56fe<\/p>\n<p><img decoding=\"async\"   class=\"lazyload\" data-src=\"https:\/\/a1.boltp.com\/2024\/11\/22\/673f5b082cb85.png\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"1732205315520.png\" \/><\/p >\n<noscript><img decoding=\"async\" src=\"https:\/\/a1.boltp.com\/2024\/11\/22\/673f5b082cb85.png\" alt=\"1732205315520.png\" \/><\/p><\/noscript>\n<h1>\u901a\u7528\u7eb9\u7406\u56fe<\/h1>\n<p>\u4e3b\u8981\u4f1a\u7528\u5230\u4ee5\u4e0b\u7eb9\u7406\u56fe\uff1a<\/p>\n<ul>\n<li>Wet Normal map\uff1a\u4e3b\u6cd5\u7ebf\u8d34\u56fe\uff0c\u4e3a\u773c\u7403\u6e7f\u9762\uff08Wet surface\uff09\u63d0\u4f9b\u7ec6\u5fae\u7684\u8d77\u4f0f\u611f\n<p><img decoding=\"async\"   class=\"lazyload\" data-src=\"https:\/\/a1.boltp.com\/2024\/11\/22\/673f5ceeda097.png\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"1732205802477.png\" \/><\/p >\n<noscript><img decoding=\"async\" src=\"https:\/\/a1.boltp.com\/2024\/11\/22\/673f5ceeda097.png\" alt=\"1732205802477.png\" \/><\/p><\/noscript>\n<\/li>\n<li>\n<p>Sclera map\uff1a\u63a7\u5236\u773c\u767d\u90e8\u5206\u57fa\u7840\u8272\u7684\u8d34\u56fe\uff0c\u53ef\u7ed9\u4e88\u8d34\u56fe<strong>\u8840\u7ba1<\/strong>\u548c<strong>\u7ec4\u7ec7\u989c\u8272<\/strong>\u4ee5\u4e30\u5bcc\u773c\u767d\u7684\u7ec6\u8282<\/p>\n<p><img decoding=\"async\"   class=\"lazyload\" data-src=\"https:\/\/a1.boltp.com\/2024\/11\/22\/673f5d5c8b14c.png\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"1732205911795.png\" \/><\/p >\n<noscript><img decoding=\"async\" src=\"https:\/\/a1.boltp.com\/2024\/11\/22\/673f5d5c8b14c.png\" alt=\"1732205911795.png\" \/><\/p><\/noscript>\n<\/li>\n<li>\n<p>Tangent map\uff1a\u63a7\u5236\u8868\u9762\u5207\u7ebf\u8d70\u5411\uff0c\u4ee5\u4fbf\u5728\u4e0d\u540c\u7684\u671d\u5411\u4e0b\u5f3a\u8c03\u89d2\u819c\u548c\u5de9\u819c\u7684\u53d8\u5316\u548c\u533a\u522b<\/p>\n<p>\u4e0b\u56fe\u4e2d\u5706\u5fc3\u4e2d\u5fc3\u548c\u5706\u5f62\u5916\u56f4\u7684\u8d77\u4f0f\u53d8\u5316\uff0c\u5b83\u4eec\u5206\u522b\u5bf9\u5e94\u89d2\u819c\u548c\u5de9\u819c<\/p>\n<p><img decoding=\"async\"   class=\"lazyload\" data-src=\"https:\/\/a1.boltp.com\/2024\/11\/22\/673f5d793a142.png\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"1732205940730.png\" \/><\/p >\n<noscript><img decoding=\"async\" src=\"https:\/\/a1.boltp.com\/2024\/11\/22\/673f5d793a142.png\" alt=\"1732205940730.png\" \/><\/p><\/noscript>\n<\/li>\n<li>\n<p>Mid Plane Displacement map\uff1a\u7528\u4e8e\u9501\u5b9a\u4e00\u4e2a\u6a2a\u5207\u773c\u90e8\u4e2d\u5fc3\u7684\u5e73\u9762\uff0c\u4e4b\u540e\u57fa\u4e8e\u8fd9\u4e2a\u5e73\u9762\u6765\u8ba1\u7b97\u89d2\u819c\u7684\u6df1\u5ea6\u504f\u79fb<\/p>\n<p><img decoding=\"async\"   class=\"lazyload\" data-src=\"https:\/\/a1.boltp.com\/2024\/11\/22\/673f5de7b7239.png\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"1732206051005.png\" \/><\/p >\n<noscript><img decoding=\"async\" src=\"https:\/\/a1.boltp.com\/2024\/11\/22\/673f5de7b7239.png\" alt=\"1732206051005.png\" \/><\/p><\/noscript>\n<\/li>\n<li>\n<p>Eye Diffuse\uff1a\u89d2\u819c\u8d34\u56fe\u975e\u5e38\u7279\u6b8a\uff0c\u5b83\u4e0e\u6a21\u578b\u7684UV\u5e03\u5c40\u5e76\u4e0d\u5339\u914d\u3002\u540e\u7eed\u901a\u8fc7UV\u548cAlpha Mask\u6765\u63a7\u5236\u6574\u4e2a\u89d2\u819c\u7684\u5c3a\u5bf8\uff0c\u4e5f\u5305\u62ec\u77b3\u5b54\u7684\u5927\u5c0f<\/p>\n<p><img decoding=\"async\"   class=\"lazyload\" data-src=\"https:\/\/a1.boltp.com\/2024\/11\/22\/673f5edfe985a.png\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"1732206299214.png\" \/><\/p >\n<noscript><img decoding=\"async\" src=\"https:\/\/a1.boltp.com\/2024\/11\/22\/673f5edfe985a.png\" alt=\"1732206299214.png\" \/><\/p><\/noscript>\n<\/li>\n<li>\n<p>Environment Texture Cube\uff1a\u63a7\u5236\u773c\u90e8\u9ad8\u5149\u53cd\u5c04\u5185\u5bb9\u7684\u73af\u5883\u5149\u8d34\u56fe<\/p>\n<\/li>\n<li>\n<p>Noise\uff1a\u901a\u7528\u566a\u58f0\u56fe<\/p>\n<\/li>\n<\/ul>\n<h1>\u901a\u7528\u53c2\u6570<\/h1>\n<ul>\n<li><strong>Depth Scale<\/strong>\uff1a\u63a7\u5236\u7ecf\u8fc7\u89d2\u819c\u6298\u5c04\u540e\uff0c\u8679\u819c\u504f\u6298\u7684\u6df1\u5ea6<\/li>\n<li><strong>Flatten Normal<\/strong>\uff1a\u63a7\u5236\u5168\u5c40\u773c\u7403\u6cd5\u7ebf\u7684\u5e73\u987a\u5ea6\uff0c\u4e3b\u8981\u5f71\u54cd\u773c\u767d\u90e8\u5206\uff08\u5de9\u819c\uff09<\/li>\n<li><strong>IOR<\/strong>\uff1a\u89d2\u819c\u5230\u6676\u72b6\u4f53\u4e4b\u95f4\u623f\u6c34\u7684\u6298\u5c04\u7387\uff0c\u63a7\u5236\u6298\u5c04\u7a0b\u5ea6<\/li>\n<li><strong>Iris Concavity Power &amp; Iris Concavity Scale<\/strong>\uff1aIris Concavity Power \u548cIris Concavity Scale\u4e00\u8d77\u63a7\u5236\u5728\u8679\u819c\u8868\u9762\u56e0\u5149\u7ebf\u900f\u5c04\u8fc7\u89d2\u819c\u800c\u5f62\u6210\u7684\u7126\u6563\uff08caustics\uff09\u7684\u5f62\u72b6\u548c\u5f3a\u5ea6\u3002\u901a\u5e38\u53ea\u6709\u5728\u771f\u5b9e\u5149\u7167\u73af\u5883\u4e0b\u624d\u53ef\u89c1<\/li>\n<li><strong>Iris UV Radius<\/strong>\uff1a\u63a7\u5236\u773c\u7403\u4e0a\u8679\u819c\u7684\u6574\u4f53\u5927\u5c0f<\/li>\n<li><strong>Iris Brightness<\/strong>\uff1a\u63a7\u5236\u8679\u819c\u7684\u660e\u4eae\u7a0b\u5ea6<\/li>\n<li><strong>Iris Roughness<\/strong>\uff1a\u5f71\u54cd\u89d2\u819c\uff08\u8679\u819c\u4e4b\u4e0a\u7684\u8868\u9762\uff09\u7684\u95ea\u4eae\uff08Shiny\uff09\u7a0b\u5ea6<\/li>\n<li><strong>Limbus Dark Scale<\/strong>\uff1a\u63a7\u5236\u89d2\u819c\u8fb9\u7f18\u6697\u73af\u7684\u5927\u5c0f<\/li>\n<li><strong>Limbus Power<\/strong>\uff1a\u63a7\u5236\u89d2\u819c\u8fb9\u7f18\u6697\u73af\u5411\u5de9\u819c\uff08\u773c\u767d\uff09\u7684\u6269\u6563\u7a0b\u5ea6\uff0c\u8fc7\u5927\u7684\u6570\u503c\u4f1a\u67d3\u9ed1\u6574\u4e2a\u5de9\u819c<\/li>\n<li><strong>Limbus UV Width Color<\/strong>\uff1a\u63a7\u5236\u89d2\u819c\u7f18\u7684\u91c7\u6837\u5c3a\u5bf8\uff0c\u6216\u8005\u8bf4\u8981\u5206\u914d\u591a\u5c11\u773c\u7403\u7684\u8868\u9762\u79ef\u6765\u663e\u793a\u89d2\u819c\u7f18<\/li>\n<li><strong>Limbus UV Width Shading<\/strong>\uff1a\u63a7\u5236\u6709\u591a\u5c11\u5149\u7167\u80fd\u591f\u5f71\u54cd\u89d2\u819c\u7f18\u7684\u6e32\u67d3<\/li>\n<li><strong>Normal UV Scale<\/strong>\uff1a\u63a7\u5236Wet Normal\u7eb9\u7406\u7684\u7f29\u653e<\/li>\n<li><strong>Pupil Scale<\/strong>\uff1a\u63a7\u5236\u77b3\u5b54\u5927\u5c0f<\/li>\n<li><strong>Refraction On\/Off<\/strong>\uff1a\u6df7\u5408\u5e26\u6298\u5c04\u548c\u4e0d\u5e26\u6298\u5c04\u7248\u672c\u7684\u7740\u8272\u7ed3\u679c<\/li>\n<li><strong>Scale By Center<\/strong>\uff1a\u8c03\u6574\u6574\u4e2a\u8679\u819c\/\u77b3\u5b54\u7684\u7f29\u653e<\/li>\n<li><strong>Sclera Brightness<\/strong>\uff1a\u63a7\u5236\u5de9\u819c\u7684\u660e\u4eae\u7a0b\u5ea6<\/li>\n<li><strong>Sclera Roughness<\/strong>\uff1a\u63a7\u5236\u5de9\u819c\uff08\u773c\u767d\uff09\u90e8\u5206\u6750\u8d28\u7684\u7c97\u7cd9\u5ea6<\/li>\n<li><strong>Specularity Iris<\/strong>\uff1a\u63a7\u5236\u5728\u89d2\u819c\u533a\u57df\uff08\u8679\u819c\u548c\u77b3\u5b54\uff09\u5f62\u6210\u7684\u9ad8\u5149\u5f3a\u5ea6<\/li>\n<li><strong>Specularity Sclera<\/strong>\uff1a\u63a7\u5236\u5728\u5de9\u819c\uff08\u773c\u767d\uff09\u533a\u57df\u5f62\u6210\u7684\u9ad8\u5149\u5f3a\u5ea6<\/li>\n<li><strong>Shadow Hardness &amp; Shadow Radius<\/strong>\uff1a\u63a7\u5236\u5de9\u819c\u5185\u5916\u5c42\u989c\u8272\u6df7\u5408\u7684\u9510\u5229\u5ea6<\/li>\n<\/ul>\n<h1>\u5b9e\u73b0<\/h1>\n<p>\u8fd9\u91cc\u7b14\u8005\u60f3\u8fd8\u539f\u6700\u7ec8\u5e7b\u60f37\u4e2d\u7231\u4e3d\u4e1d\u7684\u6548\u679c\uff0c\u5e76\u6ca1\u6709\u7528\u5230\u8fd9\u4e48\u591a\u8d34\u56fe\u548c\u53c2\u6570\uff08\u5177\u4f53\u7684\u53ef\u4ee5\u53c2\u8003UE\u7684\u6570\u5b57\u4eba\u8d44\u4ea7\uff09<\/p>\n<h2>Scale UV By Center<\/h2>\n<p>\u4ee5\u8d34\u56fe\u4e2d\u5fc3\u8fdb\u884cuv\u7f29\u653e<\/p>\n<pre><code class=\"line-numbers\">float2 ScaleUVByCenter(float2 uv, float scale = 1)\n{\n    float2 o;\n\n    o = uv \/ scale + 0.5f - 0.5f \/ scale;\n\n    return o;\n}\n<\/code><\/pre>\n<p>\u8be5\u5f0f\u5c06\u6574\u4e2a\u5206\u5e03\u5728[0, 1]\u533a\u95f4\u7684uv\u5148\u5e73\u79fb\u5230\u4e2d\u5fc3\u70b9\u5bf9\u9f500\u70b9\u7684\u4f4d\u7f6e\uff0c\u7136\u540e\u8fdb\u884c<span class=\"katex math inline\">\\frac{1}{scale}<\/span>\u7684\u7f29\u653e\uff0c\u6700\u540e\u518d\u5e73\u79fb\u56de\u4e2d\u5fc3\u70b9\u4e3a(0.5, 0.5)\u7684\u6b63\u5e38\u4f4d\u7f6e<\/p>\n<h2>\u6298\u5c04<\/h2>\n<p>\u8fd9\u90e8\u5206\u53ef\u4ee5\u7528\u89c6\u5dee\u8d34\u56fe\u6216\u57fa\u4e8e\u7269\u7406\u7684\u6298\u5c04\u5b9e\u73b0\uff0c\u7531\u4e8e\u57fa\u4e8e\u7269\u7406\u7684\u6298\u5c04\u5b9e\u73b0\u6bd4\u8f83\u590d\u6742\uff0c\u8fd9\u91cc\u53ea\u5c55\u793a\u89c6\u5dee\u8d34\u56fe\u90e8\u5206\uff0c\u5173\u4e8e\u7269\u7406\u7684\u6298\u5c04\u53ef\u4ee5\u770bue\u7684\u6e90\u7801<\/p>\n<ul>\n<li>\u89c6\u5dee\u8d34\u56fe<\/li>\n<\/ul>\n<pre><code class=\"line-numbers\">float2 ParallaxMapping(float3 viewDir, half2 uv, half height, half heightScale)\n{ \n    float2 p = viewDir.xy * (height * heightScale);\n    return uv - p;    \n}\n<\/code><\/pre>\n<p>\u9700\u8981\u6ce8\u610f\u7684\uff0c\u8fd9\u91cc\u6700\u597d\u4f7f\u7528\u4e09\u5f20\u8d34\u56fe\uff0c\u4e00\u5f20\u662f\u5de9\u819c\uff08\u773c\u767d\u548c\u8840\u4e1d\uff09\uff0c\u4e00\u5f20\u662f\u8679\u819c\u7684\u7070\u5ea6\u56fe\uff08\u5f69\u8272\u90e8\u5206\uff09\uff0c\u8fd8\u6709\u4e00\u5f20\u8679\u819c\u7684Mask\u3002\u5728\u8ba1\u7b97\u89c6\u5dee\u65f6\u53ea\u5bf9\u8679\u819c\u7684\u7070\u5ea6\u56fe\u548cMask\u56fe\u505a\u89c6\u5dee<\/p>\n<h2>\u9ad8\u5149<\/h2>\n<p>NDF\u9879 GGX<\/p>\n<pre><code class=\"line-numbers\">\/\/ GGX \/ Trowbridge-Reitz\n\/\/ [Walter et al. 2007, \"Microfacet models for refraction through rough surfaces\"]\n\/\/ \u5728\u6d41\u884c\u7684\u6a21\u578b\u4e2d\uff0cGGX\u62e5\u6709\u6700\u957f\u7684\u5c3e\u90e8\u3002\u800cGGX\u5176\u5b9e\u4e0eBlinn (1977)\u63a8\u5d07\u7684Trowbridge-Reitz\uff08TR\uff09\uff081975\uff09\u5206\u5e03\u7b49\u540c\u3002\u7136\u800c\uff0c\u5bf9\u4e8e\u8bb8\u591a\u6750\u8d28\u800c\u8a00\uff0c\u5373\u4fbf\u662fGGX\u5206\u5e03\uff0c\u4ecd\u7136\u6ca1\u6709\u8db3\u591f\u957f\u7684\u5c3e\u90e8\nfloat NDF_GGX( float roughness2, float NoH )\n{\n    const float a2 = pow2(roughness2);\n    const float NoH2 = pow2(NoH);\n    const float d = PI * pow2(NoH2 * (a2 - 1.f) + 1.f);\n\n    if(d &lt; FLT_EPS) return 1.f;\n\n    return a2 \/ d;\n}\n<\/code><\/pre>\n<p>F\u9879 Schlick\u8fd1\u4f3c\u8db3\u5df2<\/p>\n<pre><code class=\"line-numbers\">float3 SchlickFresnel(float HdotV, float3 F0)\n{\n    float m = clamp(1-HdotV, 0, 1);\n    float m2 = m * m;\n    float m5 = m2 * m2 * m; \/\/ pow(m,5)\n    return F0 + (1.0 - F0) * m5;\n}\n<\/code><\/pre>\n<p>G\u9879 Smith\u8fd1\u4f3c<\/p>\n<pre><code class=\"line-numbers\">float Vis_SmithJointApprox( float a2, float NoV, float NoL )\n{\n    float a = sqrt(a2);\n    float Vis_SmithV = NoL * ( NoV * ( 1 - a ) + a );\n    float Vis_SmithL = NoV * ( NoL * ( 1 - a ) + a );\n    return 0.5 * rcp( Vis_SmithV + Vis_SmithL );\n}\n<\/code><\/pre>\n<p>\u5982\u679c\u4e0d\u9700\u8981\u5b8c\u5168\u7269\u7406\u7684\u8bdd\uff0c\u53ef\u4ee5\u53ea\u4f7f\u7528NDF\u9879\uff0c\u4e5f\u53ef\u4ee5\u5f97\u5230\u9ad8\u5149\u5f62\u72b6<\/p>\n<h2>MatCap<\/h2>\n<p>MatCap\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63d0\u5347\u773c\u775b\u8d28\u611f<\/p>\n<pre><code class=\"line-numbers\">half2 GetMatCapUV(half3 viewDirWS, half3 normalWS)\n{\n    half3 cameraFoward = -viewDirWS;\n    half3 viewUpDir = mul(UNITY_MATRIX_I_V, half4(half3 (0, 1, 0), 0)).xyz;\n    half3 cameraRight = normalize(cross(viewUpDir,cameraFoward));\n    half3 cameraUp = normalize(cross(cameraFoward,cameraRight));\n\n    half2 uv = mul(float3x3(cameraRight,cameraUp,cameraFoward),normalWS).xy * 0.5 + 0.5;\n    return uv;\n}\n<\/code><\/pre>\n<h2>\u7126\u6563<\/h2>\n<p>\u8fd9\u91cc\u91c7\u7528Caustic Mask\u56fe\uff0c\u7528\u4e8e\u63a7\u5236\u54ea\u4e9b\u533a\u57df\u4f1a\u5b58\u5728\u7126\u6563\u4eae\u6591<\/p>\n<pre><code class=\"line-numbers\">float causticMask =  _CausticMaskTex.SampleLevel(Smp_RepeatU_RepeatV_Linear, Unity_Rotate_Degrees_float(eyeUV, 0.5, LightDir.r), 0);\no.emission = causticMask * _CausticColor;\n<\/code><\/pre>\n<h1>\u6700\u7ec8\u6548\u679c<\/h1>\n<p><img decoding=\"async\"   class=\"lazyload\" data-src=\"https:\/\/a1.boltp.com\/2024\/11\/23\/6740b61a91379.png\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/moezx\/cdn@3.0.2\/img\/svg\/loader\/trans.ajax-spinner-preloader.svg\" onerror=\"imgError(this)\"  alt=\"1732294167028.png\" \/><\/p >\n<noscript><img decoding=\"async\" src=\"https:\/\/a1.boltp.com\/2024\/11\/23\/6740b61a91379.png\" alt=\"1732294167028.png\" \/><\/p><\/noscript>\n<h1>Reference<\/h1>\n<p><a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/www.jianshu.com\/p\/f2f0354c45d8\" target=\"_blank\"  rel=\"nofollow\" >UE Digital Human Eye Shading<\/a><\/p>\n<p><a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/www.cnblogs.com\/timlly\/p\/11144950.html\" target=\"_blank\"  rel=\"nofollow\" >\u5256\u6790Unreal Engine\u8d85\u771f\u5b9e\u4eba\u7c7b\u7684\u6e32\u67d3\u6280\u672fPart 2 - \u773c\u7403\u6e32\u67d3<\/a><\/p>\n<p><a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/zhuanlan.zhihu.com\/p\/358391224\" target=\"_blank\"  rel=\"nofollow\" >\u3010UE4.26\u3011\u773c\u7403\u6e32\u67d3\u7b14\u8bb0<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u773c\u775b\u6784\u9020 \u751f\u7269\u5b66\u773c\u775b\u7684\u6784\u9020\u662f\u5f88\u590d\u6742\u7684\uff0c\u5305\u542b\u5341\u591a\u79cd\u90e8\u4f4d\uff0c\u4f46\u5728\u6e32\u67d3\u4e2d\u53ea\u9700\u8981\u4e86\u89e3\u516d\u4e2a\u90e8\u4f4d\u5373\u53ef\uff1a Sclera\uff08\u5de9\u819c\uff09\uff1a\u773c\u7403\u8868\u5c42\u7684\u767d\u8272\u7ea4\u7ef4 &#8230;<\/p>","protected":false},"author":1,"featured_media":314,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"_links":{"self":[{"href":"http:\/\/chenglixue.top\/index.php?rest_route=\/wp\/v2\/posts\/311"}],"collection":[{"href":"http:\/\/chenglixue.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/chenglixue.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/chenglixue.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/chenglixue.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=311"}],"version-history":[{"count":1,"href":"http:\/\/chenglixue.top\/index.php?rest_route=\/wp\/v2\/posts\/311\/revisions"}],"predecessor-version":[{"id":326,"href":"http:\/\/chenglixue.top\/index.php?rest_route=\/wp\/v2\/posts\/311\/revisions\/326"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/chenglixue.top\/index.php?rest_route=\/wp\/v2\/media\/314"}],"wp:attachment":[{"href":"http:\/\/chenglixue.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/chenglixue.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=311"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/chenglixue.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}