{"id":412,"date":"2026-04-18T14:00:22","date_gmt":"2026-04-18T06:00:22","guid":{"rendered":"http:\/\/chenglixue.top\/?p=412"},"modified":"2026-04-18T14:00:22","modified_gmt":"2026-04-18T06:00:22","slug":"%e5%af%b9metallic-roughness%e4%b8%8especular-smoothness%e4%b8%a4%e7%a7%8d%e5%b7%a5%e4%bd%9c%e6%b5%81%e7%9a%84%e6%80%9d%e8%80%83","status":"publish","type":"post","link":"http:\/\/chenglixue.top\/?p=412","title":{"rendered":"\u5bf9metallic roughness\u4e0especular smoothness\u4e24\u79cd\u5de5\u4f5c\u6d41\u7684\u601d\u8003"},"content":{"rendered":"<p><div class=\"has-toc have-toc\"><\/div><\/p>\n<h1>\u524d\u8a00<\/h1>\n<p>Metallic-Roughness\u4e0e Specular\/Smoothness \u662f\u4e1a\u754c\u6700\u4e3b\u6d41\u7684\u5de5\u4f5c\u6d41\uff0c\u867d\u7136\u63a7\u5236\u53c2\u6570\u4e0d\u540c\uff0c\u4f46\u6700\u7ec8\u76ee\u7684\u90fd\u662f\u8fdb\u884cBRDF\u5149\u7167\u8ba1\u7b97\u3002\u90a3\u4e48\u8fd9\u4e24\u79cd\u5de5\u4f5c\u6d41\u7a76\u7adf\u6709\u4ec0\u4e48\u672c\u8d28\u7684\u533a\u522b\uff0c\u5b83\u4eec\u5404\u81ea\u7684\u4f18\u7f3a\u70b9\u662f\u4ec0\u4e48\uff0c\u4e3a\u4ec0\u4e48\u6709\u4e24\u79cd\u5de5\u4f5c\u6d41\uff0c\u5bf9\u5e94\u5de5\u4f5c\u6d41\u9002\u7528\u7684\u573a\u666f\u662f\u4ec0\u4e48\u3002\u672c\u6587\u5c06\u4e00\u4e00\u89e3\u7b54\u8fd9\u4e9b\u95ee\u9898<\/p>\n<h1>\u4e24\u79cd\u5de5\u4f5c\u6d41\u7684\u5b9a\u4e49<\/h1>\n<h2>Metallic-Roughness<\/h2>\n<p>Metallic-Roughness\u662f\u73b0\u5982\u4eca\u6700\u4e3b\u6d41\u7684\u5de5\u4f5c\u6d41\uff0cUE\u5c31\u91c7\u7528\u8fd9\u4e2a\u5de5\u4f5c\u6d41<\/p>\n<ul>\n<li>\u6838\u5fc3\u53c2\u6570\n<ul>\n<li>Albedo\uff1a\u5305\u542b\u7edd\u7f18\u4f53\u7684\u6f2b\u53cd\u5c04\u989c\u8272\uff0c\u4ee5\u53ca\u91d1\u5c5e\u7684\u9ad8\u5149\u53cd\u5c04\u7387F0<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u540e\u7eed\u914d\u5408metallic\u89e3\u7801\uff0c\u5f97\u5230\u771f\u6b63\u7684\u6f2b\u53cd\u5c04\u3001F0<\/p>\n<pre><code class=\"line-numbers\">o.DiffuseColor = o.BaseColor - o.BaseColor * o.Metallic;\no.SpecularColor = ComputeF0(o.Specular, o.BaseColor, o.Metallic);\n<\/code><\/pre>\n<ul>\n<li>Metallic\uff1a\u5b9a\u4e49\u6750\u8d28\u662f\u7edd\u7f18\u4f53\uff080\uff09\u8fd8\u662f\u91d1\u5c5e\uff081\uff09<\/p>\n<\/li>\n<li>\n<p>Roughness\uff1a\u5b9a\u4e49\u8868\u9762\u7684\u5fae\u8868\u9762\u7c97\u7cd9\u5ea6<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u4f18\u70b9<\/p>\n<ul>\n<li>\u5f3a\u5236\u80fd\u91cf\u5b88\u6052\uff1a\u53ef\u4ee5\u770b\u5230\u8fd9\u79cd\u5de5\u4f5c\u6d41\u63d0\u4f9b\u7684\u53c2\u6570\u90fd\u662f\u4e0ePBR\u6709\u5173\u7684\uff0c\u6ca1\u6709\u624b\u7ed8\u4ec0\u4e48\u7684\uff0c\u7531\u5f15\u64ce\u5e95\u5c42\u81ea\u52a8\u5904\u7406\u5904\u7406\u6f2b\u53cd\u5c04\u548cF0\u7684\u6bd4\u4f8b<\/li>\n<li>\u7701\u663e\u5b58\uff1a Metallic \u548c Roughness \u90fd\u662f\u5355\u901a\u9053\u7070\u5ea6\u56fe\uff0c\u53ef\u4ee5\u548c\u5176\u4ed6\u7684\u5355\u901a\u9053\u5982AO\u6253\u5305\u6210\u4e00\u5f20\u8d34\u56fe<\/li>\n<\/ul>\n<\/li>\n<li>\u7f3a\u70b9\n<ul>\n<li>F0\u56fa\u5b9a\u3002\u5927\u591a\u6570\u5f15\u64ce\u56fa\u5b9a\u7f16\u7801\u4e3a0.04\uff0c\u5982\u679c\u9700\u8981\u5b9d\u77f3\u3001\u7389\u77f3\uff0c\u8fd9\u79cd\u9ad8F0\u7684\u6548\u679c\uff0c\u9700\u8981\u989d\u5916\u5f00\u653e\u4e00\u4e2aspecular\u53c2\u6570\uff0c\u5b83\u4f1a\u5f71\u54cdF0\u7684\u503c<\/li>\n<\/ul>\n<pre><code class=\"line-numbers\">F0 = 0.08\u00d7Specular\n<\/code><\/pre>\n<ul>\n<li>\u767d\u8fb9\u7455\u75b5\u3002\u5f53\u6750\u8d28\u5728\u4e00\u4e2a\u50cf\u7d20\u4ece\u7edd\u7f18\u4f53\u8fc7\u6e21\u5230\u91d1\u5c5e\u65f6\uff0cBase Color \u4f1a\u4ece\u6f2b\u53cd\u5c04\u989c\u8272\u5267\u53d8\u5230\u91d1\u5c5e\u7684\u9ad8\u5149\u989c\u8272\uff0c\u800c Metallic \u4e5f\u4f1a\u4ece 0 \u53d8\u5230 1\u3002<strong>\u8fc7\u6e21\u533a\u57df\u4f1a\u51fa\u73b0\u975e\u7269\u7406\u7684\u201c\u4eae\u6591\u201d\u6216\u767d\u8fb9<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Specular\/Smoothness<\/h2>\n<p>Specular\/Smoothness\u5de5\u4f5c\u6d41\u5728PBR\u65e9\u671f\u5f88\u6d41\u884c\uff0c\u5728\u6982\u5ff5\u4e0a\u66f4\u63a5\u8fd1\u524d PBR \u65f6\u4ee3\u7684\u6b21\u4e16\u4ee3\u6e32\u67d3\u5de5\u4f5c\u6d41<\/p>\n<ul>\n<li>\u6838\u5fc3\u53c2\u6570\n<ul>\n<li>Diffuse\uff1a\u4ec5\u5305\u542b\u6f2b\u53cd\u5c04\u989c\u8272\uff0c\u4e0d\u5305\u542bF0<\/li>\n<li>Specular(RGB)\uff1a\u76f4\u63a5\u5b9a\u4e49\u6750\u8d28\u5728\u5782\u76f4\u5165\u5c04\u89d2\u4e0b\u7684F0\uff1b\u4e8e\u7edd\u7f18\u4f53\uff0c\u901a\u5e38\u662f\u975e\u5e38\u6697\u7684\u7070\u8272\uff1b\u5bf9\u4e8e\u91d1\u5c5e\uff0c\u5219\u662f\u5e26\u6709\u989c\u8272\u7684\u4eae\u8272<\/li>\n<li>Smoothness\uff1a\u4e0e\u7c97\u7cd9\u5ea6\u5b8c\u5168\u76f8\u53cd<\/li>\n<\/ul>\n<\/li>\n<li>\u4f18\u70b9\n<ul>\n<li>\u7edd\u5bf9\u7684\u63a7\u5236\u529b\uff1a\u7f8e\u672f\u53ef\u4ee5\u76f4\u63a5\u63a7\u5236\u6240\u6709\u6750\u8d28\u7684 F0 \u6570\u636e\u6d41<\/li>\n<li>\u65e0\u8fc7\u6e21\u7684\u767d\u8fb9\u7455\u75b5<\/li>\n<\/ul>\n<\/li>\n<li>\u7f3a\u70b9\n<ul>\n<li>\u5bb9\u6613\u6253\u7834\u80fd\u91cf\u5b88\u6052<\/li>\n<li>\u663e\u5b58\u5360\u7528\u66f4\u5927\uff1aSpecular\u662fRGB\u8d34\u56fe<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h1>\u4e3a\u4ec0\u4e48\u6709\u4e24\u79cd\u5de5\u4f5c\u6d41<\/h1>\n<ul>\n<li>\u7f8e\u672f\u7684\u4e60\u60ef\n<p>\u5728 PBR \u666e\u53ca\u524d\uff0c\u7f8e\u672f\u4e60\u60ef\u4e86\u624b\u52a8\u7ed8\u5236 Specular \u8d34\u56fe\u6765\u63a7\u5236\u9ad8\u5149\u989c\u8272\u548c\u5f3a\u5ea6<\/p>\n<\/li>\n<\/ul>\n<h1>\u9002\u7528\u573a\u666f<\/h1>\n<ul>\n<li>\n<p>\u201c\u7269\u7406\u6b63\u786e\u201d\u4e0e\u201c\u81ea\u7531\u5ea6\u201d\u7684\u9009\u62e9<\/p>\n<ul>\n<li>Metallic-Roughness \uff1a\u8ffd\u6c42\u6e32\u67d3\u7ba1\u7ebf\u7684\u5065\u58ee\u6027\u3001\u907f\u514d\u7f8e\u672f\u6253\u7834\u80fd\u91cf\u5b88\u6052\u3001\u66f4\u597d\u7684\u5185\u5b58<\/li>\n<\/ul>\n<p>\u5c31\u7b97F0\u6709\u9650\u5236\uff0c\u8fd8\u53ef\u4ee5\u5f00\u53d1\u4e0d\u540c\u7684shadingmodel\u6765\u6ee1\u8db3\u7279\u6b8a\u6750\u8d28<\/p>\n<ul>\n<li>Specular\/Smoothness\uff1a\u9700\u8981\u5f00\u53d1\u6709\u5927\u91cf\u7279\u6b8a\u3001F0\u5f88\u9ad8\u7684\u975e\u91d1\u5c5e\u6750\u8d28\uff08\u5982\u8584\u819c\uff09\u3001\u4e14\u7f8e\u672f\u56e2\u961f\u6781\u5176\u4e13\u4e1a<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00 Metallic-Roughness\u4e0e Specular\/Smoothness \u662f\u4e1a\u754c\u6700\u4e3b\u6d41\u7684\u5de5\u4f5c\u6d41\uff0c\u867d\u7136\u63a7\u5236\u53c2\u6570\u4e0d\u540c\uff0c\u4f46\u6700 &#8230;<\/p>","protected":false},"author":1,"featured_media":413,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"_links":{"self":[{"href":"http:\/\/chenglixue.top\/index.php?rest_route=\/wp\/v2\/posts\/412"}],"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=412"}],"version-history":[{"count":1,"href":"http:\/\/chenglixue.top\/index.php?rest_route=\/wp\/v2\/posts\/412\/revisions"}],"predecessor-version":[{"id":414,"href":"http:\/\/chenglixue.top\/index.php?rest_route=\/wp\/v2\/posts\/412\/revisions\/414"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/chenglixue.top\/index.php?rest_route=\/wp\/v2\/media\/413"}],"wp:attachment":[{"href":"http:\/\/chenglixue.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=412"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/chenglixue.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=412"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/chenglixue.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=412"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}