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50 行
1.4 KiB
50 行
1.4 KiB
#if SHADERPASS != SHADERPASS_DISTORTION
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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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float4 Frag(PackedVaryingsToPS packedInput) : SV_Target
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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);
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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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// Perform alpha testing + get distortion
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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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float4 outBuffer;
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// Mark this pixel as eligible as source for distortion
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EncodeDistortion(builtinData.distortion, builtinData.distortionBlur, true, outBuffer);
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return outBuffer;
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}
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