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132 行
4.4 KiB
132 行
4.4 KiB
#if SHADERPASS != SHADERPASS_FORWARD
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#error SHADERPASS_is_not_correctly_define
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#endif
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#include "VertMesh.hlsl"
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PackedVaryingsType Vert(AttributesMesh inputMesh)
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{
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VaryingsType varyingsType;
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varyingsType.vmesh = VertMesh(inputMesh);
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return PackVaryingsType(varyingsType);
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}
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#ifdef TESSELLATION_ON
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PackedVaryingsToPS VertTesselation(VaryingsToDS input)
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{
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VaryingsToPS output;
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output.vmesh = VertMeshTesselation(input.vmesh);
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return PackVaryingsToPS(output);
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}
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#include "TessellationShare.hlsl"
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#endif // TESSELLATION_ON
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void Frag(PackedVaryingsToPS packedInput,
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#ifdef OUTPUT_SPLIT_LIGHTING
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out float4 outColor : SV_Target0, // outSpecularLighting
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out float4 outDiffuseLighting : SV_Target1,
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OUTPUT_SSSBUFFER(outSSSBuffer)
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#else
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out float4 outColor : SV_Target0
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#endif
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#ifdef _DEPTHOFFSET_ON
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, out float outputDepth : SV_Depth
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#endif
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)
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{
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FragInputs input = UnpackVaryingsMeshToFragInputs(packedInput.vmesh);
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// input.positionSS is SV_Position
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PositionInputs posInput = GetPositionInput(input.positionSS.xy, _ScreenSize.zw, input.positionSS.z, input.positionSS.w, input.positionRWS.xyz, uint2(input.positionSS.xy) / GetTileSize());
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#ifdef VARYINGS_NEED_POSITION_WS
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float3 V = GetWorldSpaceNormalizeViewDir(input.positionRWS);
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#else
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// Unused
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float3 V = float3(1.0, 1.0, 1.0); // Avoid the division by 0
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#endif
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SurfaceData surfaceData;
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BuiltinData builtinData;
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GetSurfaceAndBuiltinData(input, V, posInput, surfaceData, builtinData);
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#ifdef DEBUG_DISPLAY
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ApplyDebugToSurfaceData(input.worldToTangent, surfaceData);
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#endif
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BSDFData bsdfData = ConvertSurfaceDataToBSDFData(input.positionSS.xy, surfaceData);
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PreLightData preLightData = GetPreLightData(V, posInput, bsdfData);
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outColor = float4(0.0, 0.0, 0.0, 0.0);
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// We need to skip lighting when doing debug pass because the debug pass is done before lighting so some buffers may not be properly initialized potentially causing crashes on PS4.
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#ifdef DEBUG_DISPLAY
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// Init in debug display mode to quiet warning
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#ifdef OUTPUT_SPLIT_LIGHTING
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outDiffuseLighting = 0;
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ENCODE_INTO_SSSBUFFER(surfaceData, posInput.positionSS, outSSSBuffer);
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#endif
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if (_DebugLightingMode != DEBUGLIGHTINGMODE_NONE || _DebugMipMapMode != DEBUGMIPMAPMODE_NONE)
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#endif
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{
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#ifdef _SURFACE_TYPE_TRANSPARENT
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uint featureFlags = LIGHT_FEATURE_MASK_FLAGS_TRANSPARENT;
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#else
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uint featureFlags = LIGHT_FEATURE_MASK_FLAGS_OPAQUE;
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#endif
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float3 diffuseLighting;
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float3 specularLighting;
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LightLoop(V, posInput, preLightData, bsdfData, builtinData, featureFlags, diffuseLighting, specularLighting);
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#ifdef OUTPUT_SPLIT_LIGHTING
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if (_EnableSubsurfaceScattering != 0 && ShouldOutputSplitLighting(bsdfData))
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{
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outColor = float4(specularLighting, 1.0);
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outDiffuseLighting = float4(TagLightingForSSS(diffuseLighting), 1.0);
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}
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else
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{
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outColor = float4(diffuseLighting + specularLighting, 1.0);
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outDiffuseLighting = 0;
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}
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ENCODE_INTO_SSSBUFFER(surfaceData, posInput.positionSS, outSSSBuffer);
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#else
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outColor = ApplyBlendMode(diffuseLighting, specularLighting, builtinData.opacity);
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outColor = EvaluateAtmosphericScattering(posInput, outColor);
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#endif
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}
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#ifdef _DEPTHOFFSET_ON
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outputDepth = posInput.deviceDepth;
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#endif
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#ifdef DEBUG_DISPLAY
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// Same code in ShaderPassForwardUnlit.shader
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if (_DebugViewMaterial != 0)
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{
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float3 result = float3(1.0, 0.0, 1.0);
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bool needLinearToSRGB = false;
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GetPropertiesDataDebug(_DebugViewMaterial, result, needLinearToSRGB);
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GetVaryingsDataDebug(_DebugViewMaterial, input, result, needLinearToSRGB);
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GetBuiltinDataDebug(_DebugViewMaterial, builtinData, result, needLinearToSRGB);
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GetSurfaceDataDebug(_DebugViewMaterial, surfaceData, result, needLinearToSRGB);
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GetBSDFDataDebug(_DebugViewMaterial, bsdfData, result, needLinearToSRGB);
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// TEMP!
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// For now, the final blit in the backbuffer performs an sRGB write
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// So in the meantime we apply the inverse transform to linear data to compensate.
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if (!needLinearToSRGB)
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result = SRGBToLinear(max(0, result));
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outColor = float4(result, 1.0);
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}
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#endif
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}
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