unity meta pass
作者:互联网
简单说就是在meta pass计算
albedo,emission,specular
3个值
光照烘焙,gi计算间接光照时都会用到这些值
Shader "MyShader/SampleLightmap" { SubShader { Pass { CGPROGRAM #pragma vertex vert #pragma fragment frag #pragma multi_compile _ LIGHTMAP_ON #include"Lighting.cginc" struct VertexData { float4 pos:POSITION; float2 uv:TEXCOORD0; float2 uv1:TEXCOORD1; }; struct V2F { float4 pos:SV_POSITION; float2 uv:TEXCOORD0; #if defined(LIGHTMAP_ON) float2 uv1:TEXCOORD1; #endif }; V2F vert(VertexData v) { V2F res; res.pos = UnityObjectToClipPos(v.pos); res.uv = v.uv; #if defined(LIGHTMAP_ON) res.uv1 = v.uv1 * unity_LightmapST.xy + unity_LightmapST.zw; #endif return res; } fixed4 frag(V2F i) :SV_TARGET { fixed4 col = fixed4(1,0,0,1); #if defined(LIGHTMAP_ON) col.rgb = DecodeLightmap(UNITY_SAMPLE_TEX2D(unity_Lightmap, i.uv1)); #endif return col; } ENDCG } Pass { Tags{ "LightMode" = "Meta" } CGPROGRAM #pragma vertex vert #pragma fragment frag #include "UnityStandardInput.cginc" #include "UnityMetaPass.cginc" struct V2F { float4 pos:SV_POSITION; float4 uv:TEXCOORD0; }; V2F vert(VertexInput v) { V2F o; o.pos = UnityMetaVertexPosition(v.vertex, v.uv1.xy, v.uv2.xy, unity_LightmapST, unity_DynamicLightmapST); o.uv = TexCoords(v); return o; } fixed4 frag(V2F i) :SV_TARGET { UnityMetaInput o; UNITY_INITIALIZE_OUTPUT(UnityMetaInput, o); o.Albedo = fixed3(1, 1, 0); //这里只是将漫反射添加到烘焙贴图中去
o.Emission = xxxx;
o.SpecularColor = xxxx;
return UnityMetaFragment(o); } ENDCG } } }
meta pass
https://blog.csdn.net/wodownload2/article/details/94554057
https://blog.csdn.net/cgy56191948/article/details/100766303
标签:res,uv1,uv,pos,unity,meta,V2F,pass 来源: https://www.cnblogs.com/nafio/p/14315093.html