{"id":1537,"date":"2022-11-09T14:51:09","date_gmt":"2022-11-09T06:51:09","guid":{"rendered":"https:\/\/courtship.top\/?p=1537"},"modified":"2022-11-09T14:51:09","modified_gmt":"2022-11-09T06:51:09","slug":"section02-unity-shader","status":"publish","type":"post","link":"https:\/\/courtship.top\/index.php\/2022\/11\/09\/section02-unity-shader\/","title":{"rendered":"Section02 Unity Shader"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u6982\u8ff0<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u6750\u8d28\u548cUnity Shader<\/h3>\n\n\n\n<p>\u5728Unity \u4e2d\u6211 \u9700\u8981\u914d\u5408\u4f7f\u7528 \u6750\u8d28 (Material) \u548c Unity Shader \u80fd\u8fbe\u5230\u9700\u8981\u7684\u6548\u679c\u3002\u4e00\u4e2a\u6700\u5e38\u89c1\u7684\u6d41\u7a0b\u662f<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u521b\u5efa\u4e00\u4e2a\u6750\u8d28\uff1b<\/li>\n\n\n\n<li>\u521b\u5efa\u4e00 Unity Shader, \u5e76\u628a\u5b83\u8d4b\u7ed9\u4e0a\u4e00\u6b65\u4e2d\u521b\u5efa\u7684\u6750\u8d28<\/li>\n\n\n\n<li>\u628a\u6750\u8d28\u8d4b\u7ed9\u8981\u6e32\u67d3\u7684\u5bf9\u8c61\uff1b<\/li>\n\n\n\n<li>\u5728\u6750\u8d28\u9762\u677f\u4e2d\u8c03\u6574 Unity Shader \u5c5e\u6027 \u4ee5\u5f97\u5230\u6ee1\u610f\u7684\u6548\u679c\u3002<\/li>\n<\/ol>\n\n\n\n<p>Unity Shader \u5b9a\u4e49\u4e86\u6e32\u67d3\u6240\u9700\u7684\u5404\u79cd\u4ee3\u7801\uff08\u5982\u9876\u70b9\u7740\u8272\u5668 \u7247\u5143\u7740\u8272\u5668\uff09\u5c5e\u6027\uff08\u4f7f\u7528\u54ea\u4e9b\u7eb9\u7406\u7b49\uff09\u548c\u6307\u4ee4\uff08\u6e32\u67d3\u548c\u6807\u7b7e\u8bbe\u7f6e\u7b49\uff09\uff0c\u800c\u6750\u8d28\u5141\u8bb8\u6211\u4eec\u8c03\u8282\u8fd9\u4e9b\u5c5e\u6027\uff0c\u5e76\u5c06\u5176\u6700\u7ec8\u8d4b\u7ed9\u76f8\u5e94\u7684\u6a21\u578b<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Unity\u4e2d\u7684Shader<\/h3>\n\n\n\n<p>Unity\u4e00\u5171\u63d0\u4f9b\u4e864\u79cdUnity Shader\u6a21\u677f\u4f9b\u6211\u4eec\u9009\u62e9<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Standard Surface Shader    \u4f1a\u4ea7\u751f\u4e00\u4e2a\u5305\u542b\u4e86\u6807\u51c6\u5149\u7167\u6a21\u578b\u7684\u8868\u9762\u7740\u8272\u5668\u6a21\u677f<\/li>\n\n\n\n<li>Unlit Shader                        \u4f1a\u4ea7\u751f\u4e00\u4e2a\u4e0d\u5305\u542b\u5149\u7167\u7684\u57fa\u672c\u9876\u70b9\/\u7247\u5143\u7740\u8272\u5668\u6a21\u677f<\/li>\n\n\n\n<li>Image Effect Shader            \u4e3a\u6211\u4eec\u5b9e\u73b0\u5404\u79cd\u5c4f\u5e55\u540e\u5904\u7406\u6548\u679c\u63d0\u4f9b\u4e86\u4e00\u4e2a\u57fa\u672c\u6a21\u677f<\/li>\n\n\n\n<li>Compute Shader                 \u4f1a\u4ea7\u751f\u4e00\u79cd\u7279\u6b8ashader\u6587\u4ef6\uff0c\u8fd9\u7c7bshader\u65e8\u5728\u5229\u7528GPU\u7684\u5e76\u884c\u6027\u6765\u8fdb\u884c\u4e00\u4e9b\u4e0e\u5e38\u89c4\u6e32\u67d3\u6d41\u6c34\u7ebf\u65e0\u5173\u7684\u8ba1\u7b97<\/li>\n<\/ul>\n\n\n\n<p>Standard Surface Shader\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u5178\u578b\u7684\u8868\u9762\u7740\u8272\u5668\u7684\u5b9e\u73b0\u65b9\u6cd5\uff0c\u4f46\u672c\u4e66\u7684\u91cd\u70b9\u5728\u4e8e\u5982\u4f55\u5728Unity\u4e2d\u7f16\u5199\u9876\u70b9\uff0f\u7247\u5143\u7740\u8272\u5668\uff0c\u56e0\u6b64\u5728\u540e\u7eed\u7684\u5b66\u4e60\u4e2d\uff0c\u6211\u4eec\u901a\u5e38\u4f1a\u4f7f\u7528Unlit Shader\u6765\u751f\u6210\u4e00\u4e2a\u57fa\u672c\u7684\u9876\u70b9\uff0f\u7247\u5143\u7740\u8272\u5668\u6a21\u677f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ShaderLab<\/h2>\n\n\n\n<p>Unity\u4e3a\u4e86\u89e3\u51b3\u81ea\u5b9a\u4e49\u6e32\u67d3\u9700\u8981\u5f88\u591a\u6587\u4ef6\u548c\u590d\u6742\u7684\u8bbe\u7f6e\uff0c\u63d0\u4f9b\u4e86\u4e00\u5c42\u62bd\u8c61\u2014\u2014\u2014ShaderLab<\/p>\n\n\n\n<p>ShaderLab\u662fUnity\u63d0\u4f9b\u7684\u4e00\u79cd\u4e13\u95e8\u4e3aUnity Shader\u670d\u52a1\u7684\u8bed\u8a00\uff0c\u662f\u4e3aUnity\u5f00\u53d1\u8005\u63d0\u4f9b\u7684\u9ad8\u5c42\u7ea7\u7684\u6e32\u67d3\u62bd\u8c61\u5c42<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-3.png\" alt=\"\" class=\"wp-image-1546\"\/><\/figure>\n\n\n\n<p>\u4e00\u4e2aUnity Shader\u7684\u57fa\u7840\u7ed3\u6784\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Shader \"ShaderName\" {\n    Properties {\n          \/\/\u5c5e\u6027\n    }\n    SubShader {\n          \/\/\u663e\u5361A\u4f7f\u7528\u7684\u5b50\u7740\u8272\u5668\n    }\n    SubShaderB {\n          \/\/\u663e\u5361B\u4f7f\u7528\u7684\u5b50\u7740\u8272\u5668\n    }\n    FallBack \"VertexLit\"\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Unity Shader\u7684\u7ed3\u6784<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Name<\/h3>\n\n\n\n<p>\u6bcf\u4e2aUnity Shader\u6587\u4ef6\u7684\u7b2c\u4e00\u884c\u90fd\u9700\u8981\u901a\u8fc7Shader\u8bed\u4e49\u6765\u6307\u5b9a\u540d\u5b57\uff0c\u53ef\u4ee5\u901a\u8fc7\u5728\u5b57\u7b26\u4e32\u4e2d\u6dfb\u52a0 \/ \uff0c\u63a7\u5236Shader\u5728\u6750\u8d28\u9762\u677f\u51fa\u73b0\u7684\u4f4d\u7f6e<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Shader \"Custom\/Shader\" { }<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Properities<\/h3>\n\n\n\n<p>Properties \u8bed\u4e49\u5757\u4e2d\u5305\u542b\u4e86 \u4e00\u7cfb\u5217\u5c5e\u6027 (property),\u8fd9\u4e9b\u5c5e\u6027\u5c06\u4f1a\u51fa\u73b0\u5728\u6750\u8d28\u9762\u677f\u4e2d\u3002<\/p>\n\n\n\n<p>\u663e\u793a\u7684\u540d\u79f0 (display name) \u5219\u662f\u51fa\u73b0\u5728\u6750\u8d28\u9762\u677f\u4e0a\u7684\u540d\u5b57\u3002\u6211\u4eec\u9700\u8981\u4e3a\u6bcf\u4e2a\u5c5e\u6027\u6307\u5b9a\u5b83\u7684\u7c7b\u578b (PropertyType)<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Properties {\n   Name (\"display name\",PropertyType) = DefaultValue\n   Name (\"display name\",PropertyType) = DefaultValue\n   \/\/\u66f4\u591a\u5c5e\u6027\n}<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-4-1024x361.png\" alt=\"\" class=\"wp-image-1551\"\/><figcaption class=\"wp-element-caption\">\u5c5e\u6027\u7c7b\u578b<\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u4e8e Int Float Range \u8fd9\u4e9b\u6570\u5b57\u7c7b\u578b\u7684\u5c48\u6027\uff0c\u5176\u9ed8\u8ba4\u503c\u5c31\u662f\u4e00\u4e2a\u5355\u72ec\u7684\u6570\u5b57\uff1b<\/li>\n\n\n\n<li>\u5bf9\u4e8e Color \u548c Vector \u8fd9\u7c7b\u5c5e\u6027\uff0c\u9ed8\u8ba4\u503c\u662f\u7528\u5706\u62ec\u53f7\u5305\u56f4\u7684\u4e00\u4e2a\u56db\u7ef4\u5411\u91cf\uff1b<\/li>\n\n\n\n<li>\u5bf9\u4e8e 2D Cube 3D \u79cd\u7eb9\u7406\u7c7b\u578b\uff0c\u9ed8\u8ba4\u503c\u7684\u5b9a\u4e49\u7a0d\u5fae\u590d\u6742\uff0c\u5b83\u4eec\u7684\u9ed8\u8ba4\u503c\u662f\u901a\u8fc7\u4e00\u4e2a\u5b57\u7b26\u4e32\u540e\u8ddf\u4e00\u4e2a\u82b1\u62ec\u53f7\u6765\u6307\u5b9a\u7684<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>Shader \"Unity Shaders Book\/Chapter 3\/MyShader\" {\n\tProperties {\n\t\t\/\/ Numbers and Sliders\n\t\t_Int (\"Int\", Int) = 2\n\t\t_Float (\"Float\", Float) = 1.5\n\t\t_Range(\"Range\", Range(0.0, 5.0)) = 3.0\n\t\t\/\/ Colors and Vectors\n\t\t_Color (\"Color\", Color) = (1,1,1,1)\n\t\t_Vector (\"Vector\", Vector) = (2, 3, 6, 1)\n\t\t\/\/ Textures\n\t\t_2D (\"2D\", 2D) = \"\" {}\n\t\t_Cube (\"Cube\", Cube) = \"white\" {}\n\t\t_3D (\"3D\", 3D) = \"black\" {}\n         }\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">SubShader<\/h3>\n\n\n\n<p>\u6bcf\u4e00\u4e2aUnity Shader\u6587\u4ef6\u53ef\u4ee5\u5305\u542b\u591a\u4e2aSubShader\u8bed\u4e49\u5757\uff0c\u4f46\u6700\u5c11\u8981\u6709\u4e00\u4e2a\u3002 <\/p>\n\n\n\n<p>\u5f53Unity\u9700\u8981\u52a0\u8f7d\u8fd9\u4e2aUnity Shader\u65f6\uff0cUnity\u4f1a\u626b\u63cf\u6240\u6709\u7684SubShader\u8bed\u4e49\u5757\uff0c \u7136\u540e\u9009\u62e9\u7b2c\u4e00\u4e2a\u80fd\u591f\u5728\u76ee\u6807\u5e73\u53f0\u4e0a\u8fd0\u884c\u7684SubShader\u3002 \u5982\u679c\u90fd\u4e0d\u652f\u6301\u7684\u8bdd\uff0c Unity\u5c31\u4f1a\u4f7f\u7528Fallback\u8bed\u4e49\u6307\u5b9a\u7684Unity Shader\u3002<\/p>\n\n\n\n<p><strong>Unity\u63d0\u4f9b\u8fd9\u79cd\u8bed\u4e49\u7684\u539f\u56e0\u5728\u4e8e\uff0c \u4e0d\u540c\u7684\u663e\u5361\u5177\u6709\u4e0d\u540c\u7684\u80fd\u529b\u3002<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>SubShader{\n   \/\/\u53ef\u9009\u7684\n   &#91;Tags]\n\n   \/\/\u53ef\u9009\u7684\n   &#91;RenderSetup]\n\n   Pass {\n   }\n   \/\/Other Passes\n}<\/code><\/pre>\n\n\n\n<p>SubShader\u4e2d\u5b9a\u4e49\u4e86 \u4e00\u7cfb\u5217Pass\u4ee5\u53ca\u53ef\u9009\u7684 <strong>\u72b6\u6001([RenderSetup]) <\/strong>\u548c <strong>\u6807\u7b7e([Tags])<\/strong> \u8bbe\u7f6e\u3002 \u6bcf\u4e2aPass\u5b9a\u4e49\u4e86\u4e00\u6b21\u5b8c\u6574\u7684\u6e32\u67d3\u6d41\u7a0b<\/p>\n\n\n\n<p><strong>\u72b6\u6001\u548c\u6807\u7b7e\u540c\u6837\u53ef\u4ee5\u5728Pass\u58f0\u660e\u3002<\/strong>\u4e0d\u540c\u7684\u662f\uff0cSubShader\u4e2d\u7684\u4e00\u4e9b\u6807\u7b7e\u8bbe\u7f6e\u662f\u7279\u5b9a\u7684\u3002 \u4e5f\u5c31\u662f\u8bf4\uff0c \u8fd9\u4e9b\u6807\u7b7e\u8bbe\u7f6e\u548cPass\u4e2d\u4f7f\u7528\u7684\u6807\u7b7e\u662f\u4e0d\u4e00\u6837\u7684\u3002\u4f46\u662f\uff0c \u5982\u679c\u6211\u4eec\u5728SubShader\u8fdb\u884c\u4e86\u8fd9\u4e9b\u8bbe\u7f6e\uff0c \u90a3\u4e48\u5c06\u4f1a\u7528\u4e8e\u6240\u6709\u7684Pass\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u72b6\u6001\u8bbe\u7f6e<\/h4>\n\n\n\n<p>Shader Lab\u63d0\u4f9b\u4e86\u4e00 \u7cfb\u5217\u6e32\u67d3\u72b6\u6001\u7684\u8bbe\u7f6e\u6307\u4ee4\uff0c \u8fd9\u4e9b\u6307\u4ee4\u53ef\u4ee5\u8bbe\u7f6e\u663e\u5361\u7684\u5404\u79cd\u72b6\u6001\uff0c \u4f8b\u5982\u662f<br \/>\u5426\u5f00\u542f\u6df7\u5408\/\u6df1\u5ea6\u6d4b\u8bd5\u7b49\u3002<\/p>\n\n\n\n<p>\u5f53\u5728SubShader\u5757\u4e2d\u8bbe\u7f6e\u4e86\u4e0b\u8ff0\u6e32\u67d3\u72b6\u6001\u65f6\uff0c\u5c06\u4f1a\u5e94\u7528\u5230\u6240\u6709\u7684Pass\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-5-1024x242.png\" alt=\"\" class=\"wp-image-1567\"\/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">SubShader\u7684\u6807\u7b7e<\/h4>\n\n\n\n<p>SubShader\u7684\u6807\u7b7e(Tags)\u662f\u4e00\u4e2a\u952e\u503c\u5bf9(Key\/Value Pair), \u5b83\u7684\u952e\u548c\u503c\u90fd\u662f\u5b57\u7b26\u4e32\u7c7b\u578b\u3002<\/p>\n\n\n\n<p>\u8fd9\u4e9b\u952e\u503c\u5bf9\u662fSubShader\u548c\u6e32\u67d3\u5f15\u64ce\u4e4b\u95f4\u7684\u6c9f\u901a\u6865\u6881\u3002\u5b83\u4eec\u7528\u6765\u544a\u8bc9Unity\u7684\u6e32\u67d3\u5f15\u64ce\uff1a\u6211\u5e0c\u671b\u600e\u6837\u4ee5\u53ca\u4f55\u65f6\u6e32\u67d3\u8fd9\u4e2a\u5bf9\u8c61<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Tags { \"TagName1\" = \"Value1\" \"TagName2\" = \"Value2\" }<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-6-1024x664.png\" alt=\"\" class=\"wp-image-1572\"\/><figcaption class=\"wp-element-caption\">SubShader\u6807\u7b7e\u7c7b\u578b<\/figcaption><\/figure>\n\n\n\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4e0a\u8ff0\u6807\u7b7e\u4ec5\u53ef\u4ee5\u5728 SubShader \u58f0\u660e \uff0c\u800c\u4e0d\u53ef\u4ee5\u5728 Pass \u5757\u4e2d\u58f0\u660e\u3002 Pass\u5757\u867d\u7136\u4e5f\u53ef\u4ee5\u5b9a\u4e49\u6807\u7b7e\uff0c\u4f46\u8fd9\u4e9b\u6807\u7b7e\u662f\u4e0d\u540c\u4e8e SubShader \u7684\u6807\u7b7e\u7c7b\u578b\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Pass\u8bed\u4e49\u5757<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>Pass {\n    &#91;Name]\n    &#91;Tags]\n    &#91;RenderSetup]\n    \/\/Other code\n}<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">Pass \u540d\u79f0<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>Name \"MyPassName\"<\/code><\/pre>\n\n\n\n<p>\u901a\u8fc7\u8fd9\u4e2a\u540d\u79f0\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 ShaderLab UsePass \u4ee4\u6765\u76f4\u63a5\u4f7f\u7528\u5176\u4ed6 Unity Shader \u4e2d\u7684Pass \u3002<\/p>\n\n\n\n<p>\u56e0\u4e3aUnity\u5185\u90e8\u4f1a\u628a\u6240\u6709Pass\u7684\u540d\u79f0\u8f6c\u6362\u6210\u5927\u5199\u5b57\u6bcd\u7684\u8868\u793a\uff0c\u56e0\u6b64\uff0c\u5728\u4f7f\u7528UsePass\u547d\u4ee4\u65f6\u5fc5\u987b\u4f7f\u7528\u5927\u5199\u5f62\u5f0f\u7684\u540d\u5b57<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>UsePass \"MyShader\/MYPASSNAME\"<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">Pass\u6e32\u67d3\u72b6\u6001<\/h5>\n\n\n\n<p>SubShader \u7684\u72b6\u6001\u8bbe\u7f6e\u540c\u6837\u9002\u7528\u4e8e Pass \u3002\u9664\u4e86\u4e0a\u9762\u63d0\u5230\u7684\u72b6\u6001\u8bbe\u7f6e\u5916\uff0c\u5728 Pass \u4e2d\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528\u56fa\u5b9a\u7ba1\u7ebf\u7684\u7740\u8272\u5668\u3002Pass \u540c\u6837\u53ef\u4ee5\u8bbe\u7f6e\u6807\u7b7e \u4f46\u5b83\u7684\u6807\u7b7e\u4e0d\u540c\u4e8e SubShader \u7684\u6807\u7b7e\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/courtship.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-7-1024x195.png\" alt=\"\" class=\"wp-image-1581\"\/><\/figure>\n\n\n\n<p>\u9664\u4e86\u4e0a\u9762\u666e\u901a\u7684 Pass \u5b9a\u4e49\u5916\uff0c Unity Shader \u652f\u6301\u4e00\u4e9b\u7279\u6b8a\u7684 Pass, \u4ee5\u4fbf\u8fdb\u884c\u4ee3\u7801\u590d\u7528\u6216\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u6548\u679c\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>UsePass: \u5982\u6211\u4eec\u4e4b\u524d\u63d0\u5230\u7684\u4e00\u6837\uff0c\u53ef\u4ee5\u4f7f\u7528\u8be5\u547d\u4ee4\u6765\u590d\u7528\u5176\u4ed6 Unity Shader \u4e2d\u7684 Pass<\/li>\n\n\n\n<li>GrabPass: \u8d1f\u8d23\u6293\u53d6\u5c4f\u79f0\u5e76\u5c06\u7ed3\u679c\u5b58\u50a8\u5728 \u5f20\u7eb9\u7406\u4e2d\uff0c\u4ee5\u7528\u4e8e\u540e\u7eed\u7684 Pass \u5904\u7406<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Fallback<\/h4>\n\n\n\n<p>\u7d27\u8ddf\u5728\u5404\u4e2a SubShader \u8bed\u4e49\u5757\u540e\u9762\u7684\uff0c\u53ef\u4ee5\u662f\u4e00\u4e2a Fallback \u6307\u4ee4\u3002Fallback\u7528\u4e8e\u5728\u6240\u6709Subshader\u90fd\u4e0d\u9002\u7528\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Fallback \"name\"\n\/\/\u6216\u8005\nFallback off<\/code><\/pre>\n\n\n\n<p>Fallback \u8fd8\u4f1a\u5f71\u54cd\u9634\u5f71\u7684\u6295\u5c04\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Unity Shader\u7684\u5f62\u5f0f<\/h2>\n\n\n\n<p>\u5c3d\u7ba1 Unity Shader \u53ef\u4ee5\u505a\u7684\u4e8b\u60c5\u975e\u5e38\u591a\uff08\u4f8b\u5982\u8bbe\u7f6e\u6e32\u67d3\u72b6\u6001\u7b49\uff09\uff0c\u4f46\u5176\u6700\u91cd\u8981\u7684\u4efb\u52a1\u8fd8\u662f\u6307\u5b9a\u5404\u79cd\u7740\u8272\u5668\u6240\u9700\u7684\u4ee3\u7801\u3002\u8fd9\u4e9b\u5de5\u4f5c\u53ef\u4ee5\u5728SubShader\u4e2d\u4e5f\u53ef\u4ee5\u5728Pass\u4e2d\u5b9e\u73b0\u3002<\/p>\n\n\n\n<p>\u5728Unity Shader\u4e2d\u4f7f\u7528\u4e09\u79cd\u5f62\u5f0f\u6765\u7f16\u5199<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Shader \"MyShader\" {\n    Properties {\n       \/\/\u6240\u9700\u7684\u5404\u79cd\u5c5e\u6027\n    }\n    SubShader {\n       \/\/\u8868\u9762\u7740\u8272\u5668 Surface Shader\n       \/\/\u6216\u8005\n       \/\/\u9876\u70b9\/\u7247\u5143\u7740\u8272\u5668 Vertex\/Fragment Shader\n       \/\/\u6216\u8005\n       \/\/\u56fa\u5b9a\u51fd\u6570\u7740\u8272\u5668 Fixed Function Shader\n    }\n    SubShader {\n       \/\/\u548c\u4e0a\u4e00\u4e2a\u7c7b\u4f3c\n    }\n{<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u8868\u9762\u7740\u8272\u5668<\/h3>\n\n\n\n<p>\u8868\u9762\u7740\u8272\u5668 (Surface Shader) \u662fUnity\u81ea\u5df1\u521b\u9020\u7684\u4e00\u79cd\u7740\u8272\u5668\u4ee3\u7801\u7c7b\u578b\u3002\u5b83\u9700\u8981\u7684\u4ee3\u7801\u5f88\u5c11\uff0c Unity \u5728\u80cc\u540e\u505a\u4e86\u5f88\u591a\u5de5\u4f5c\uff0c\u4f46\u6e32\u67d3\u7684\u4ee3\u4ef7\u6bd4\u8f83\u5927\u3002\u672c\u8d28\u4e0a\u4e0e\u9876\u70b9\/\u7247\u5143\u7740\u8272\u5668\u4e00\u6837\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u53ef\u4ee5\u7406\u89e3\u6210\uff0c\u8868\u9762\u7740\u8272\u5668\u662f Unity \u5bf9\u9876\u70b9\uff0f\u7247\u5143\u7740\u8272\u5668\u7684\u66f4\u9ad8\u4e00\u5c42\u7684\u62bd\u8c61\u3002\u5b83\u5b58\u5728\u7684\u4ef7\u503c\u5728\u4e8e\uff0c Unity \u4e3a\u6211\u4eec\u5904\u7406\u4e86\u5f88\u591a\u5149\u7167\u7ec6\u8282\uff0c\u4f7f\u5f97\u6211\u4eec\u4e0d\u9700\u8981\u518d\u64cd\u5fc3\u8fd9\u4e9b\u201c\u70e6\u4eba\u7684\u4e8b\u60c5\u201d\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Shader \"Custom\/Simple Surface Shader\" {\n    SubShader {\n       Tags {\"RenderType\" = \"Opaque\" }\n\n       CGPROGRAM\n       #pragma surface surf Lambert\n       struct Input {\n          float4 color : COLOR;\n       };\n       void surf(Input IN,inout SurfaceOut o) {\n           o.Albedo = 1;\n       }\n       ENDCG\n    }\n    Fallback \"Diffuse\"\n}<\/code><\/pre>\n\n\n\n<p><strong>\u8868\u9762\u7740\u8272\u5668\u88ab\u5b9a\u4e49\u5728 SubShader \u8bed\u4e49\u5757\uff08\u800c\u975e Pass \u8bed\u4e49\u5757\uff09\u4e2d\u7684CGPROGRAM ENDCG \u4e4b\u95f4<\/strong><\/p>\n\n\n\n<p>\u539f\u56e0\u662f\uff0c\u8868\u800c\u7740\u8272\u5668\u4e0d\u9700\u8981\u5f00\u53d1\u8005\u5173\u5fc3\u4f7f\u7528\u591a\u5c11\u4e2a Pass \u3001\u6bcf\u4e2aPass \u5982\u4f55\u6e32\u67d3\u7b49\u95ee\u9898\uff0c \u4f1a\u5728\u80cc\u540e\u4e3a\u6211\u4eec\u505a\u597d\u8fd9\u4e9b\u4e8b\u60c5<\/p>\n\n\n\n<p>CGPROGRAM ENDCG \u4e4b\u95f4\u7684\u4ee3\u7801\u662f\u4f7f\u7528 CG\/HLSL \u7f16\u5199\u7684\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u6211\u4eec\u9700\u8981\u628aCG\/HLSL \u8bed\u8a00\u5d4c\u5957\u5728 ShaderLab \u8bed\u8a00\u4e2d<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u9876\u70b9\/\u7247\u5143\u7740\u8272\u5668<\/h3>\n\n\n\n<p>\u5728Unity\u4e2d\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 CG HLSL \u8bed\u8a00\u6765\u7f16\u5199\u9876\u70b9\uff0f\u7247\u5143\u7740\u8272\u5668 (Vertex\/Fragment Shader)\uff0c\u5b83\u4eec\u66f4\u52a0\u590d\u6742\uff0c\u4f46\u7075\u6d3b\u6027\u4e5f\u66f4\u9ad8\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Shader \"Custom\/Soimple VertexFragment Shader\" {\n    SubShader {\n       Pass {\n          CGPROGRAM\n\n          #pragma vertex vert\n          #pragma fragment frag\n\n          float4 vert(float4 v : POSITION) : SV_POSITION {\n             return mul (UNITY_MATRIX_MVP,v);\n          }\n\n          fixed frag() : SV_Target {\n             return fixed4(1.0,0.0,0.0,1.0);\n          }\n\n          EDNCG\n       }\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u548c\u8868\u9762\u7740\u8272\u5668\u7c7b\u4f3c \u9876\u70b9\uff0f\u7247\u5143\u7740\u8272\u5668\u7684\u4ee3\u7801\u4e5f\u9700\u8981\u5b9a\u4e49\u5728 CGPROGRAM ENDCG \u4e4b\u95f4\uff0c\u4f46\u4e0d\u540c\u7684\u662f <strong>\u9876\u70b9\uff0f\u7247\u5143\u7740\u8272\u5668\u662f\u5199\u5728 Pass \u8bed\u4e49\u5757\u5185\uff0c\u800c\u975e SubShader \u5185\u7684\uff0c<\/strong>\u539f\u56e0\u662f\uff0c\u6211\u4eec\u9700\u8981\u81ea\u5df2\u5b9a\u4e49\u6bcf\u4e2a Pass \u9700\u8981\u4f7f\u7528\u7684 Shader \u4ee3\u7801 \u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u56fa\u5b9a\u51fd\u6570\u7740\u8272\u5668<\/h3>\n\n\n\n<p>\u4e0a\u9762\u4e24\u79cd nity Shader \u5f62\u5f0f\u90fd\u4f7f\u7528\u4e86\u53ef\u7f16\u7a0b\u7ba1\u7ebf\u3002\u800c\u5bf9\u4e8e\u4e00\u4e9b\u8f83\u65e7 \u7684\u8bbe\u5907 \uff08\u5176 GPU \u4ec5\u652f\u6301DirectX 7.0 OpenGL 1.5 OpenGL ES 1. 1), \u4f8b\u5982 iPhone 3, \u5b83\u4eec\u4e0d\u652f\u6301\u53ef\u7f16\u7a0b\u7ba1\u7ebf\u7740\u8272\u5668\uff0c\u56e0\u6b64\uff0c\u8fd9\u65f6\u5019\u6211\u4eec\u5c31\u9700\u8981\u4f7f\u7528 \u56fa\u5b9a\u51fd\u6570\u7740\u8272\u5668 (Fixed Function Shader) \u6765\u5b8c\u6210\u6e32\u67d3\u3002\u8fd9\u4e9b\u7740\u8272\u5668\u5f80\u5f80\u53ea\u53ef\u4ee5\u5b8c \u4e00\u4e9b\u975e\u5e38\u7b80\u5355\u6548\u679c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u9009\u62e9Unity Shader\u5f62\u5f0f<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9664\u975e\u4f60\u6709\u975e\u5e38\u660e\u786e\u7684\u9700\u6c42\u5fc5\u987b\u8981\u4f7f\u7528\u56fa\u5b9a\u51fd\u6570\u7740\u8272\u5668\uff0c\u4f8b\u5982\u9700\u8981\u5728\u975e\u5e38\u65e7\u7684\u8bbe\u5907\u4e0a\u8fd0\u884c\u4f60\u7684\u6e38\u620f\uff08\u8fd9\u4e9b\u8bbe\u5907\u975e\u5e38\u5c11\u89c1\uff09\uff0c\u5426\u5219\u8bf7\u4f7f\u7528\u53ef\u7f16\u7a0b\u7ba1\u7ebf\u7684\u7740\u8272\u5668\uff0c\u5373\u8868\u9762\u7740\u8272\u5668\u6216\u9876\u70b9\uff0f\u7247\u5143\u7740\u8272\u5668\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u4f60\u60f3\u548c\u5404\u79cd\u5149\u6e90\u6253\u4ea4\u9053\uff0c\u4f60\u53ef\u80fd\u66f4\u559c\u6b22\u4f7f\u7528\u8868\u9762\u7740\u8272\u5668 \uff0c\u4f46\u9700\u8981\u5c0f\u5fc3\u5b83\u5728\u79fb\u52a8\u5e73\u53f0\u7684\u6027\u80fd\u8868\u73b0\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u4f60\u9700\u8981\u4f7f\u7528\u7684\u5149\u7167\u6570\u76ee\u975e\u5e38\u5c11\uff0c\u4f8b\u5982\u53ea\u6709 \u4e2a\u5e73\u884c\u5149\uff0c\u90a3\u4e48\u4f7f\u7528\u9876\u70b9\uff0f\u7247\u5143\u7740\u8272\u5668\u662f\u4e2a\u66f4\u597d\u7684\u9009\u62e9\u3002<\/li>\n\n\n\n<li>\u6700\u91cd\u8981\u7684\u662f\uff0c\u5982\u679c\u4f60\u6709\u5f88\u591a\u81ea\u5b9a\u4e49\u7684\u6e32\u67d3\u6548\u679c\uff0c\u90a3\u4e48\u8bf7\u9009\u62e9\u9876\u70b9\uff0f\u7247\u5143\u7740\u8272\u5668\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Unity Shader != \u771f\u6b63Shader<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Unity \u91cc\uff0c Unity Shader \u5b9e\u9645\u4e0a\u6307\u7684\u5c31\u662f ShaderLab \u6587\u4ef6\u2014\u2014\u786c\u76d8\u4e0a\u4ee5 .shader \u4f5c\u4e3a\u6587\u4ef6\u540e\u7f00\u7684\u4e00\u79cd\u6587\u4ef6\u3002Unity Shader\u91cc\uff0c\u6211\u4eec\u53ef\u4ee5\u505a\u7684\u4e8b\u60c5\u8fdc\u591a\u4e8e\u4e00\u4e2a\u4f20\u7edf\u610f\u4e49\u4e0a\u7684Shader<\/li>\n\n\n\n<li>\u5728\u4f20\u7edf\u7684 Shader \u4e2d\uff0c\u6211\u4eec\u4ec5\u53ef\u4ee5\u7f16\u5199\u7279\u5b9a\u7c7b\u578b\u7684 Shader, \u4f8b\u5982\u9876\u70b9\u7740\u8272\u5668\u3001\u7247\u5143\u7740\u8272\u5668\u7b49\u3002\u800c\u5728 Unity Shader \u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u540c \u4e2a\u6587\u4ef6\u91cc\u540c\u65f6\u5305\u542b\u9700\u8981\u7684\u9876\u70b9\u7740\u8272\u5668\u548c\u7247\u5143\u7740\u8272\u5668\u4ee3\u7801\u3002<\/li>\n\n\n\n<li>\u5728\u4f20\u7edf\u7684 Shader \u4e2d\uff0c\u6211\u4eec\u65e0\u6cd5\u8bbe\u7f6e\u4e00\u4e9b\u6e32\u67d3\u8bbe\u7f6e\uff0c\u4f8b\u5982\u662f\u5426\u5f00\u542f\u6df7\u5408\u3001\u6df1\u5ea6\u6d4b\u8bd5\u7b49\uff0c\u8fd9\u4e9b\u662f\u5f00\u53d1\u8005\u5728\u53e6\u5916\u7684\u4ee3\u7801\u4e2d\u81ea\u884c\u8bbe\u7f6e\u7684\u3002\u800c\u5728 Unity Shader \u4e2d\uff0c\u6211\u4eec\u901a\u8fc7 \u884c\u7279\u5b9a\u7684\u6307\u4ee4\u5c31\u53ef\u4ee5\u5b8c\u6210\u8fd9\u4e9b\u8bbe\u7f6e\u3002<\/li>\n\n\n\n<li>\u5728\u4f20\u7edf\u7684 Shader 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\u5728Unity \u4e2d\u6211 \u9700\u8981\u914d\u5408\u4f7f\u7528 \u6750\u8d28 (Material) \u548c Unity Shader  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