\u4e3b\u9898\u601d\u60f3\u5c31\u662f\u572890%\u7684\u60c5\u51b5\u4e0b\u6211\u4e4b\u9700\u8981\u58f0\u660e\u8868\u9762\u7684\u7279\u6027\u5c31\u53ef\u4ee5\u4e86.\u4ee5\u540e\u5c31\u60f3\u8bf4:<\/p>\n
\u563f,\u53cd\u7167\u7387\u6765\u81ea\u8fd9\u4e2a\u7eb9\u7406\u548c\u90a3\u4e2a\u7eb9\u7406\u7684\u6df7\u5408\u4ee5\u53ca\u6cd5\u7ebf\u8d34\u56fe.\u4f7f\u7528Blinn-Phong\u7167\u660e\u6a21\u5f0f,\u522b\u518d\u6765\u70e6\u6211\u4e86\u55f7!<\/p>\n
\u50cf\u4e0a\u9762\u8bf4\u7684,\u6211\u6ca1\u6709\u7406\u4f1a\u662f\u5426\u8981\u63d0\u524d\u6216\u8005\u5ef6\u8fdf\u6e32\u67d3,\u6216\u8005\u5982\u4f55\u4f7f\u7528\u5404\u79cd\u706f\u7684\u7c7b\u578b\u53bb\u5904\u7406,\u6216\u8005\u8981\u8bbe\u7f6e\u6709\u591a\u5c11\u6548\u679c\u5c06\u7528\u706f\u5149\u6765\u5448\u73b0,\u6216\u8005\u7528\u5c06\u6709\u591a\u5c11\u4f1a\u4ea7\u751f\u5b9e\u65f6\u9634\u5f71\u7684\u90e8\u5206,\u7b49\u7b49\u90fd\u4e0d\u662f\u6211\u611f\u5174\u8da3\u7684!\u8fd9\u4e9b\u80ae\u810f\u7684\u6e32\u67d3\u5de5\u4f5c\u600e\u4e48\u80fd\u8ba9\u7a0b\u5e8f\u53bb\u505a?!\u5f97\u8ba9\u7a0b\u5e8f\u5458\u89e3\u8131!<\/p>\n
\u5f53\u7136\u8fd9\u4e0d\u662f\u4e00\u4e2a\u65b0\u6982\u5ff5.\u5927\u90e8\u5206\u56fe\u5f62\u6e32\u67d3\u7f16\u8f91\u5668\u90fd\u6ca1\u7528\u50cf\u7d20\u8272(pixel color)\u53bb\u4f5c\u4e3a\u6700\u540e\u8f93\u51fa\u7684\u8282\u70b9,\u800c\u662f\u7528\u4e86\u4ed6\u4eec\u7684\u4e00\u4e9b\u53ef\u4ee5\u63cf\u8ff0\u4ed6\u4eec\u7684\u8868\u9762\u53c2\u6570(\u5f25\u6f2b,\u955c\u9762,\u6cd5\u7ebf)\u4f5c\u4e3a\u8282\u70b9,\u6240\u6709\u7684\u706f\u5149\u4ee3\u7801\u4e5f\u4e0d\u662f\u9488\u5bf9\u4f5c\u8272\u5668\u672c\u8eab\u56fe\u5f62.OpenShadingLanguage(http:\/\/code.google.com\/p\/openshadinglanguage\/<\/a>)\u662f\u548c\u6211\u4eec\u60f3\u7684\u7c7b\u4f3c\u7684\u4e00\u4e2a\u60f3\u6cd5,\u4e0d\u8fc7\u56e0\u4e3a\u5b83\u662f\u9488\u5bf9\u7535\u5f71\u7684\u8131\u673a\u6e32\u67d3,\u6240\u6709\u5b83\u66f4\u4e30\u5bcc\u66f4\u590d\u6742.<\/p>\n \u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50,\u4f46\u5b83\u5f88\u5b8c\u6574,\u6f14\u793a\u4e86Unity3\u7684\u6f2b\u53cd\u5c04\u8d34\u56fe\u548c\u6cd5\u7ebf\u8d34\u56fe\u7684Shader. \u5c06\u5b83\u8d4b\u4e88\u7ed9\u6f02\u4eae\u7684\u6a21\u578b\u548c\u8d34\u56fe,\u5b83\u53ef\u4ee5\u4ea7\u751f\u6f02\u4eae\u7684\u56fe\u50cf!\u600e\u80fd\u4e0d\u9177?! \u8fd9\u4e2a\u662f\u4e0d\u662f\u771f\u7684\u5f88\u6709\u8da3,\u5c06\u7740\u8272\u5668\u7684\u590d\u6742\u8bed\u6cd5\u7b80\u5355\u5316,\u540e\u9762\u518d\u4e3a\u4e00\u4e9b\u8001\u53e4\u8463\u673a\u5668\u505a\u4e00\u4e9b\u540e\u5907\u58f0\u660e.\u5269\u4e0b\u7684\u53ea\u6709CG\u8bed\u8a00\/HLSL\u7684\u4ee3\u7801,\u7136\u540e\u901a\u8fc7\u81ea\u52a8\u751f\u6210\u6700\u7ec8\u4ee3\u7801\u63d0\u9ad8\u56fe\u50cf\u6548\u679c.<\/p>\n \u6211\u4eec\u6765\u89e3\u6790\u4e00\u4e0b\u8fd9\u6bb5\u7740\u8272\u5668\u4ee3\u7801:<\/p>\n \u4ec0\u4e48\u662f\u751f\u6210\uff1f<\/p>\n Unity\u7684”\u8868\u9762\u7740\u8272\u5668\u4ee3\u7801\u751f\u6210\u5668”\u5c06\u5229\u7528\u8fd9\u4e2a\u65b9\u5f0f\u4ea7\u751f\u5b9e\u9645\u7684\u9876\u70b9\u548c\u50cf\u7d20\u7740\u8272\u5668,\u5e76\u5c06\u5b83\u7f16\u8bd1\u597d\u7ed9\u5404\u79cd\u76ee\u6807\u5e73\u53f0.\u5728Unity3\u4e2d\u5c06\u9ed8\u8ba4\u652f\u6301\u8fd9\u79cd\u7740\u8272\u5668:<\/p>\n \u4f8b\u5982\u4e0b\u9762\u7684\u4ee3\u7801\u901a\u8fc7\u63d0\u4f9b\u7684\u4e00\u4e2a\u65b9\u5411\u706f,4\u4e2a\u9876\u70b9\u5149\u6e90,\u4e09\u4e2a\u9634\u5f71\u5149\u88ab\u7f16\u8bd1\u4e3a\u4e00\u4e2a\u63d0\u524d\u6e32\u67d3\u7684\u53ef\u9009\u5149\u5f71\u7684shader.\u6211\u5efa\u8bae\u4f60\u6eda\u52a8\u9875\u9762\u5f80\u4e0b\u770b\u770b\u5c31\u597d\u4e86:<\/p>\n \u56e0\u6b64,\u73b0\u5728\u5e94\u8be5\u4f1a\u6bd4\u8f83\u5bb9\u6613\u7684\u5199\u7740\u8272\u5668(\u5bf9\u4e8e\u6211\u6765\u8bf4\u81f3\u5c11).Unity\u7684\u7528\u6237\u4e5f\u613f\u610f\u5c11\u5199\u4ee3\u7801,\u5c11\u4e9b\u81f3\u5c11\u4e09\u500d\u7684\u4ee3\u7801\u4f55\u4e50\u4e0d\u4e3a?\u5b83\u8fd8\u4f1a\u6709\u4e00\u4e9b\u6539\u53d8\u4ee5\u9002\u5e94Unity\u4e0b\u4e00\u6b65\u65b0\u7684\u7167\u660e\u7cfb\u7edf.<\/p>\n \u9884\u5b9a\u4e49\u7684\u8f93\u5165\u503c<\/p>\n \u8f93\u5165\u7ed3\u6784\u53ef\u4ee5\u5305\u542b\u7eb9\u7406\u5750\u6807\u548c\u4e00\u4e9b\u9884\u5b9a\u4e49\u7684\u503c,\u4f8b\u5982\u67e5\u770b\u7684\u65b9\u5411,\u4e16\u754c\u7a7a\u95f4\u7684\u4f4d\u7f6e,\u4e16\u754c\u7a7a\u95f4\u7684\u53cd\u5c04\u77e2\u91cf\u706f.\u4f8b\u5982,\u5982\u679c\u4f60\u5229\u7528\u4e16\u754c\u7a7a\u95f4\u53cd\u5c04\u77e2\u91cf(\u5982\u81ea\u53d1\u5149),\u5728\u6a21\u578b\u8868\u9762\u505a\u4e00\u4e9bCubeMap\u53cd\u5c04\u6548\u679c(\u9012\u5ef6\u6e32\u67d3\u7684\u53cd\u5c04\u5c06\u4e0d\u4f1a\u8ba1\u7b97,\u56e0\u4e3a\u5b83\u4e0d\u4f1a\u4ea7\u751f\u6548\u679c,\u6240\u4ee5\u4e5f\u4e0d\u9700\u8981\u8003\u8651\u53cd\u5c04\u5411\u91cf),<\/p>\n \u7528\u4e00\u4e2a\u5c0f\u4f8b\u5b50\u8bf4\u660e\u505a\u7b80\u5355\u7684\u706f\u5149\u6e32\u67d3:<\/p>\n \u9876\u70b9\u4fee\u6539\u5668<\/p>\n \u5b83\u53ef\u4ee5\u81ea\u5b9a\u4e49\u9876\u70b9\u4fee\u9970\u529f\u80fd,\u7528\u6765\u4fee\u6539\u6216\u8005\u4ea7\u751f\u6bcf\u4e2a\u9876\u70b9\u7684\u6570\u636e.\u50cf\u98ce\u5439\u52a8\u6811\u7684\u52a8\u753b,\u8349\u7684\u6447\u6446\u7b49\u7b49.<\/p>\n \u6211\u6700\u559c\u6b22\u6cbf\u7740\u6cd5\u7ebf\u9876\u70b9\u7684\u65b9\u5411\u53bb\u79fb\u52a8\u9876\u70b9.\u50cf\u6253\u80bf\u4e86\u7684\u6548\u679c\u2026<\/p>\n \u81ea\u5b9a\u4e49\u5149\u7167\u6a21\u578b<\/p>\n \u6709\u4e00\u4e2a\u5185\u7f6e\u7684\u7b80\u5355\u7684\u5149\u7167\u6a21\u578b,\u4f60\u4e5f\u53ef\u4ee5\u6307\u5b9a\u4f60\u81ea\u5df1\u7684.A\u7167\u660e\u6a21\u5f0f\u53ea\u4e0d\u8fc7\u5c06\u5e38\u7528\u7684\u5149\u7684\u53c2\u6570,\u65b9\u5411\u8870\u51cf,\u800c\u6ca1\u5305\u542b\u4e00\u4e9b\u63d0\u524d\u6e32\u67d3\u548c\u5ef6\u8fdf\u6e32\u67d3\u4ee5\u53ca\u4e00\u4e9b\u4e0d\u957f\u7528\u5230\u7684\u65b9\u6cd5.\u56e0\u6b64,\u5bf9\u4e8e\u4efb\u4f55\u5947\u7279\u7684\u6548\u679c\u4f60\u90fd\u8981\u901a\u8fc7\u63d0\u4f9b\u81ea\u5b9a\u4e49\u5149\u7167\u6a21\u578b\u6765\u5b8c\u6210.<\/p>\n \u4f8b\u5982wrapped-Lambert\u5149\u7167\u6a21\u5f0f: \u5e55\u540e<\/p>\n \u6211\u4eec\u4f7f\u7528Ryan Gordon\u7684mojoshder(http:\/\/hg.icculus.org\/icculus\/mojoshader\/<\/a>)\u4e2d\u7684HLSL\u89e3\u6790\u5668\u6765\u5206\u6790\u539f\u59cb\u7684\u8868\u9762\u7740\u8272\u5668\u4ee3\u7801.\u627e\u51fa\u6709\u54ea\u4e9b\u6210\u5458\u7ed3\u6784,\u6709\u54ea\u4e9b\u51fd\u6570\u539f\u578b\u7b49\u7b49.\u5728\u8fd9\u4e2a\u9636\u6bb5\u505a\u7684\u4e00\u4e9b\u9519\u8bef\u68c0\u67e5\u662f\u4e3a\u4e86\u544a\u8bc9\u7528\u6237\u5b83\u7684\u9762\u51fd\u6570\u539f\u578b\u662f\u9519\u8bef\u6216\u8005\u4ed6\u7684\u7ed3\u6784\u7f3a\u5c11\u5fc5\u8981\u7684\u6210\u5458.<\/p>\n \u4e3a\u4e86\u5f04\u6e05\u695a\u7740\u8272\u5668\u5b9e\u9645\u7684\u7167\u660e\u5173\u7cfb,\u6211\u4eec\u505a\u4e86\u50cf\u7d20\u7740\u8272\u5668\u7684\u5c0f\u5de5\u5177\u6765\u7f16\u8bd1CG\u8bed\u8a00\u548c\u4f7f\u7528CG\u8bed\u8a00\u7684API\u67e5\u8be2\u4f7f\u7528\u4e86\u54ea\u4e9b\u8f93\u5165\u8f93\u51fa.\u8fd9\u6837\u6211\u4eec\u53ef\u4ee5\u7b97\u51fa\u4f8b\u5982\u4e00\u4e2a\u6cd5\u7ebf\u8d34\u56fe\u5b9e\u9645\u4e0d\u7528\u9012\u5ef6\u7167\u660e\u5e76\u4e5f\u8282\u7701\u4e86\u4e00\u4e9b\u9876\u70b9\u7740\u8272\u5668\u6307\u4ee4\u548c\u4e00\u4e2a\u7eb9\u7406\u5750\u6807\u503c.<\/p>\n \u751f\u6210\u7684\u4ee3\u7801\u6700\u7ec8\u6839\u636e\u76ee\u6807\u5e73\u53f0\u88ab\u7f16\u8bd1.Cg\u4e3aWindows\/Mac,XDK HLSL\u4e3aXbox 360,PS3 Cg\u4e3aPS3,\u548c\u6211\u4eec\u81ea\u5df1\u521b\u9020\u7684HLSL2GLSL\u4e3aiPhone, Android\u548c\u5373\u5c06\u9000\u51fa\u7684Unity NativeClient(http:\/\/blogs.unity3d.com\/2010\/05\/19\/google-android-and-the-future-of-games-on-the-web\/<\/a>).<\/p>\n \u5c31\u8fd9\u6837,\u6211\u4eec\u4f1a\u7ee7\u7eed\u505a\u4e0b\u53bb,\u7b49\u5230Unity3\u53d1\u5e03\u7684\u65f6\u5019,\u6211\u5e0c\u671b\u66f4\u591a\u7684\u4eba\u4f1a\u5c1d\u8bd5\u5199\u7740\u8272\u5668!<\/p>\n \u8f6c\u8f7d\u8bf7\u6ce8\u660e\u6765\u81ea1Vr.Cn,\u539f\u6587\u5730\u5740:http:\/\/blogs.unity3d.com\/2010\/07\/17\/unity-3-technology-surface-shaders\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" \u8c01\u90fd\u77e5\u9053\u5728Unity\u4e2d\u53ef\u4ee5\u7f16\u5199shader,\u53ef\u662f\u4ed6\u4eec\u5f88\u96be\u5199,\u5c24\u5176\u5f53\u4f60\u9700\u8981\u6bcf\u4e2a\u50cf\u7d20\u7684\u706f\u5149\u548c\u9634\u5f71\u4ea7\u751f\u4ea4\u4e92.\u5728Uni … Continue reading Unity3\u6280\u672f\u4e4b\u8868\u9762\u7740\u8272<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-542","post","type-post","status-publish","format-standard","hentry","without-featured-image"],"_links":{"self":[{"href":"https:\/\/1vr.cn\/index.php?rest_route=\/wp\/v2\/posts\/542","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/1vr.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/1vr.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/1vr.cn\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/1vr.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=542"}],"version-history":[{"count":1,"href":"https:\/\/1vr.cn\/index.php?rest_route=\/wp\/v2\/posts\/542\/revisions"}],"predecessor-version":[{"id":728,"href":"https:\/\/1vr.cn\/index.php?rest_route=\/wp\/v2\/posts\/542\/revisions\/728"}],"wp:attachment":[{"href":"https:\/\/1vr.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=542"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/1vr.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=542"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/1vr.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Shader \"Example\/Diffuse Bump\" {
Properties {
_MainTex (\"Texture\", 2D) = \"white\" {}
_BumpMap (\"Bumpmap\", 2D) = \"bump\" {}
}
SubShader {
Tags { \"RenderType\" = \"Opaque\" }
CGPROGRAM
#pragma surface surf Lambert
struct Input {
float2 uv_MainTex;
float2 uv_BumpMap;
};
sampler2D _MainTex;
sampler2D _BumpMap;
void surf (Input IN, inout SurfaceOutput o) {
o.Albedo = tex2D (_MainTex, IN.uv_MainTex).rgb;
o.Normal = UnpackNormal (tex2D (_BumpMap, IN.uv_BumpMap));
}
ENDCG
}
Fallback \"Diffuse\"
}<\/code><\/p>\n![](\"wp-content\/uploads\/attachments\/month_1007\/201007221243050.png\")
<\/p>\n<\/p>\n
<\/p>\n
#pragma vertex vert_surf
#pragma fragment frag_surf
#pragma fragmentoption ARB_fog_exp2
#pragma fragmentoption ARB_precision_hint_fastest
#pragma multi_compile_fwdbase
#include \"HLSLSupport.cginc\"
#include \"UnityCG.cginc\"
#include \"Lighting.cginc\"
#include \"AutoLight.cginc\"
struct Input {
float2 uv_MainTex : TEXCOORD0;
};
sampler2D _MainTex;
sampler2D _BumpMap;
void surf (Input IN, inout SurfaceOutput o)
{
o.Albedo = tex2D (_MainTex, IN.uv_MainTex).rgb;
o.Normal = UnpackNormal (tex2D (_BumpMap, IN.uv_MainTex));
}
struct v2f_surf {
V2F_POS_FOG;
float2 hip_pack0 : TEXCOORD0;
#ifndef LIGHTMAP_OFF
float2 hip_lmap : TEXCOORD1;
#else
float3 lightDir : TEXCOORD1;
float3 vlight : TEXCOORD2;
#endif
LIGHTING_COORDS(3,4)
};
#ifndef LIGHTMAP_OFF
float4 unity_LightmapST;
#endif
float4 _MainTex_ST;
v2f_surf vert_surf (appdata_full v) {
v2f_surf o;
PositionFog( v.vertex, o.pos, o.fog );
o.hip_pack0.xy = TRANSFORM_TEX(v.texcoord, _MainTex);
#ifndef LIGHTMAP_OFF
o.hip_lmap.xy = v.texcoord1.xy * unity_LightmapST.xy + unity_LightmapST.zw;
#endif
float3 worldN = mul((float3x3)_Object2World, SCALED_NORMAL);
TANGENT_SPACE_ROTATION;
#ifdef LIGHTMAP_OFF
o.lightDir = mul (rotation, ObjSpaceLightDir(v.vertex));
#endif
#ifdef LIGHTMAP_OFF
float3 shlight = ShadeSH9 (float4(worldN,1.0));
o.vlight = shlight;
#ifdef VERTEXLIGHT_ON
float3 worldPos = mul(_Object2World, v.vertex).xyz;
o.vlight += Shade4PointLights (
unity_4LightPosX0, unity_4LightPosY0, unity_4LightPosZ0,
unity_LightColor0, unity_LightColor1, unity_LightColor2, unity_LightColor3,
unity_4LightAtten0, worldPos, worldN );
#endif \/\/ VERTEXLIGHT_ON
#endif \/\/ LIGHTMAP_OFF
TRANSFER_VERTEX_TO_FRAGMENT(o);
return o;
}
#ifndef LIGHTMAP_OFF
sampler2D unity_Lightmap;
#endif
half4 frag_surf (v2f_surf IN) : COLOR {
Input surfIN;
surfIN.uv_MainTex = IN.hip_pack0.xy;
SurfaceOutput o;
o.Albedo = 0.0;
o.Emission = 0.0;
o.Specular = 0.0;
o.Alpha = 0.0;
o.Gloss = 0.0;
surf (surfIN, o);
half atten = LIGHT_ATTENUATION(IN);
half4 c;
#ifdef LIGHTMAP_OFF
c = LightingLambert (o, IN.lightDir, atten);
c.rgb += o.Albedo * IN.vlight;
#else \/\/ LIGHTMAP_OFF
half3 lmFull = DecodeLightmap (tex2D(unity_Lightmap, IN.hip_lmap.xy));
#ifdef SHADOWS_SCREEN
c.rgb = o.Albedo * min(lmFull, atten*2);
#else
c.rgb = o.Albedo * lmFull;
#endif
c.a = o.Alpha;
#endif \/\/ LIGHTMAP_OFF
return c;
}<\/code>
\u572890\u884c\u7684\u4ee3\u7801\u4e2d,10\u884c\u662f\u539f\u59cb\u7684\u7740\u8272\u5668\u4ee3\u7801,\u5176\u4f59\u7684\u4ee3\u7801\u5728Unity2\u7684\u65f6\u5019\u51e0\u4e4e\u90fd\u8981\u624b\u5199\u7684.\u522b\u6025,\u8fd9\u53ea\u662f\u5199\u4e86\u4e00\u70b9\u63d0\u524d\u6e32\u67d3\u7684\u90e8\u5206!\u8fd8\u9700\u8981\u5199\u9012\u5ef6\u6e32\u67d3,\u53ef\u9009\u9634\u5f71\u7b49\u7b49\u706f.<\/p>\n![](\"wp-content\/uploads\/attachments\/month_1007\/20100722124338l.png\")
<\/p>\n #pragma surface surf Lambert
struct Input {
float2 uv_MainTex;
float2 uv_BumpMap;
float3 viewDir;
};
sampler2D _MainTex;
sampler2D _BumpMap;
float4 _RimColor;
float _RimPower;
void surf (Input IN, inout SurfaceOutput o) {
o.Albedo = tex2D (_MainTex, IN.uv_MainTex).rgb;
o.Normal = UnpackNormal (tex2D (_BumpMap, IN.uv_BumpMap));
half rim =
1.0 - saturate(dot (normalize(IN.viewDir), o.Normal));
o.Emission = _RimColor.rgb * pow (rim, _RimPower);
}<\/code><\/p>\n![](\"wp-content\/uploads\/attachments\/month_1007\/20100722124352r.png\")
<\/p>\n![](\"wp-content\/uploads\/attachments\/month_1007\/20100722124406y.png\")
<\/p>\n #pragma surface surf WrapLambert
half4 LightingWrapLambert (SurfaceOutput s, half3 dir, half atten) {
dir = normalize(dir);
half NdotL = dot (s.Normal, dir);
half diff = NdotL * 0.5 + 0.5;
half4 c;
c.rgb = s.Albedo * _LightColor0.rgb * (diff * atten * 2);
c.a = s.Alpha;
return c;
}
struct Input {
float2 uv_MainTex;
};
sampler2D _MainTex;
void surf (Input IN, inout SurfaceOutput o) {
o.Albedo = tex2D (_MainTex, IN.uv_MainTex).rgb;
}<\/code><\/p>\n