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82 行
2.6 KiB
82 行
2.6 KiB
#ifndef UNITY_STANDARD_META_INCLUDED
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#define UNITY_STANDARD_META_INCLUDED
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// Functionality for Standard shader "meta" pass
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// (extracts albedo/emission for lightmapper etc.)
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// define meta pass before including other files; they have conditions
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// on that in some places
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#define UNITY_PASS_META 1
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#include "UnityCG.cginc"
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#include "UnityMetaPass.cginc"
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#include "UnityLayeredPhotogrammetryCore.cginc"
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#include "UnityLayeredPhotogrammetryInput.cginc"
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struct v2f_meta
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{
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float4 uv : TEXCOORD0;
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float4 uv2 : TEXCOORD1;
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half4 tangentToWorldAndPackedData[3] : TEXCOORD2; // [3x3:tangentToWorld | 1x3:viewDirForParallax or worldPos]
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float4 pos : SV_POSITION;
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float4 color : COLOR;
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#if UNITY_REQUIRE_FRAG_WORLDPOS && !UNITY_PACK_WORLDPOS_WITH_TANGENT
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float3 posWorld : TEXCOORD8;
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#endif
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};
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v2f_meta vert_meta (VertexInput v)
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{
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v2f_meta o;
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o.pos = UnityMetaVertexPosition(v.vertex, v.uv1.xy, v.uv2.xy, unity_LightmapST, unity_DynamicLightmapST);
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o.uv = TexCoords(v);
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o.uv2 = float4(v.uv2, v.uv3); // JIG CHECK UV SCALE
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o.color = v.color;
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float4 posWorld = mul(unity_ObjectToWorld, v.vertex);
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#if UNITY_REQUIRE_FRAG_WORLDPOS
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#if UNITY_PACK_WORLDPOS_WITH_TANGENT
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o.tangentToWorldAndPackedData[0].w = posWorld.x;
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o.tangentToWorldAndPackedData[1].w = posWorld.y;
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o.tangentToWorldAndPackedData[2].w = posWorld.z;
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#else
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o.posWorld = posWorld.xyz;
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#endif
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#endif
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return o;
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}
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// Albedo for lightmapping should basically be diffuse color.
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// But rough metals (black diffuse) still scatter quite a lot of light around, so
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// we want to take some of that into account too.
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half3 UnityLightmappingAlbedo (half3 diffuse, half3 specular, half smoothness)
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{
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half roughness = SmoothnessToRoughness(smoothness);
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half3 res = diffuse;
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res += specular * roughness * 0.5;
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return res;
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}
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float4 frag_meta (v2f_meta i) : SV_Target
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{
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// we're interested in diffuse & specular colors,
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// and surface roughness to produce final albedo.
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FragmentCommonData data = FragmentSetupLayeredPhotogrammetry(i.pos, i.uv, i.uv2, i.color, float3(0.0, 0.0, 0.0), i.tangentToWorldAndPackedData, IN_WORLDPOS(i));
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UnityMetaInput o;
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UNITY_INITIALIZE_OUTPUT(UnityMetaInput, o);
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#if defined(EDITOR_VISUALIZATION)
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o.Albedo = data.diffColor;
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#else
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o.Albedo = UnityLightmappingAlbedo (data.diffColor, data.specColor, data.smoothness);
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#endif
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o.SpecularColor = data.specColor;
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o.Emission = float3(0.0, 0.0, 0.0);// Emission(i.uv.xy);
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return UnityMetaFragment(o);
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}
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#endif // UNITY_STANDARD_META_INCLUDED
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