123 lines
4.2 KiB
HLSL
123 lines
4.2 KiB
HLSL
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void InitializeInputData(Varyings input, bool frontFace, out InputData inputData)
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{
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inputData = (InputData)0;
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inputData.positionWS = input.positionWS;
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float signNormal = frontFace ? 1.0f : -1.0f;
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inputData.normalWS = signNormal * input.normalWS;
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inputData.normalWS = NormalizeNormalPerPixel(inputData.normalWS);
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float crossSign = (input.tangentWS.w > 0.0 ? 1.0 : -1.0) * GetOddNegativeScale();
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float3 bitangent = crossSign * cross(input.normalWS.xyz, input.tangentWS.xyz);
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inputData.tangentToWorld = half3x3(input.tangentWS.xyz, bitangent.xyz, signNormal * input.normalWS);
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inputData.viewDirectionWS = GetWorldSpaceNormalizeViewDir(input.positionWS);
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#if defined(REQUIRES_VERTEX_SHADOW_COORD_INTERPOLATOR)
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inputData.shadowCoord = input.shadowCoord;
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#elif defined(MAIN_LIGHT_CALCULATE_SHADOWS)
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inputData.shadowCoord = TransformWorldToShadowCoord(inputData.positionWS);
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#else
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inputData.shadowCoord = float4(0, 0, 0, 0);
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#endif
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inputData.fogCoord = InitializeInputDataFog(float4(input.positionWS, 1.0), input.fogFactorAndVertexLight.x);
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inputData.vertexLighting = input.fogFactorAndVertexLight.yzw;
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inputData.normalizedScreenSpaceUV = GetNormalizedScreenSpaceUV(input.positionCS);
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inputData.shadowMask = SAMPLE_SHADOWMASK(input.staticLightmapUV);
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#if defined(DEBUG_DISPLAY)
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#if defined(DYNAMICLIGHTMAP_ON)
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inputData.dynamicLightmapUV = input.dynamicLightmapUV.xy;
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#endif
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#if defined(LIGHTMAP_ON)
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inputData.staticLightmapUV = input.staticLightmapUV;
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#else
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inputData.vertexSH = input.sh;
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#endif
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#if defined(USE_APV_PROBE_OCCLUSION)
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inputData.probeOcclusion = input.probeOcclusion;
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#endif
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inputData.positionCS = input.positionCS;
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#endif
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}
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PackedVaryings vert(Attributes input)
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{
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Varyings output = (Varyings)0;
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output = BuildVaryings(input);
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PackedVaryings packedOutput = (PackedVaryings)0;
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packedOutput = PackVaryings(output);
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return packedOutput;
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}
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void frag(
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PackedVaryings packedInput
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, out half4 outColor : SV_Target0
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, bool frontFace : FRONT_FACE_SEMANTIC
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#ifdef _WRITE_RENDERING_LAYERS
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, out float4 outRenderingLayers : SV_Target1
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#endif
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)
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{
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Varyings unpacked = UnpackVaryings(packedInput);
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UNITY_SETUP_INSTANCE_ID(unpacked);
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(unpacked);
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SurfaceDescription surfaceDescription = BuildSurfaceDescription(unpacked);
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#if defined(_SURFACE_TYPE_TRANSPARENT)
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bool isTransparent = true;
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#else
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bool isTransparent = false;
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#endif
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#if defined(_ALPHATEST_ON)
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half alpha = AlphaDiscard(surfaceDescription.Alpha, surfaceDescription.AlphaClipThreshold);
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#elif defined(_SURFACE_TYPE_TRANSPARENT)
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half alpha = surfaceDescription.Alpha;
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#else
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half alpha = half(1.0);
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#endif
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#if defined(LOD_FADE_CROSSFADE) && USE_UNITY_CROSSFADE
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LODFadeCrossFade(unpacked.positionCS);
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#endif
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InputData inputData;
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InitializeInputData(unpacked, frontFace, inputData);
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#ifdef VARYINGS_NEED_TEXCOORD0
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SETUP_DEBUG_TEXTURE_DATA(inputData, unpacked.texCoord0);
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#else
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SETUP_DEBUG_TEXTURE_DATA_NO_UV(inputData);
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#endif
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SixWaySurfaceData surfaceData;
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surfaceData.rightTopBack = surfaceDescription.RightTopBack * INV_PI;
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surfaceData.leftBottomFront = surfaceDescription.LeftBottomFront * INV_PI;
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surfaceData.emission = surfaceDescription.Emission;
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surfaceData.baseColor = surfaceDescription.BaseColor;
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surfaceData.occlusion = surfaceDescription.Occlusion;
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surfaceData.alpha = saturate(alpha);
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surfaceData.diffuseGIData0 = unpacked.diffuseGIData0;
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surfaceData.diffuseGIData1 = unpacked.diffuseGIData1;
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surfaceData.diffuseGIData2 = unpacked.diffuseGIData2;
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#if defined(_SIX_WAY_COLOR_ABSORPTION)
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surfaceData.absorptionRange = INV_PI + saturate(surfaceDescription.AbsorptionStrength) * (1 - INV_PI);
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#endif
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half4 color = UniversalFragmentSixWay(inputData, surfaceData);
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color.rgb = MixFog(color.rgb, inputData.fogCoord);
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color.a = OutputAlpha(color.a, isTransparent);
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outColor = color;
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#ifdef _WRITE_RENDERING_LAYERS
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uint renderingLayers = GetMeshRenderingLayer();
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outRenderingLayers = float4(EncodeMeshRenderingLayer(renderingLayers), 0, 0, 0);
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#endif
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}
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