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54 行
2.6 KiB
54 行
2.6 KiB
#include "HDRP/Material/BuiltinUtilities.hlsl"
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void GetBuiltinData(FragInputs input, float3 V, inout PositionInputs posInput, SurfaceData surfaceData, float alpha, float3 bentNormalWS, float depthOffset, out BuiltinData builtinData)
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{
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// For back lighting we use the oposite vertex normal
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InitBuiltinData(alpha, bentNormalWS, -input.worldToTangent[2], input.positionRWS, input.texCoord1, input.texCoord2, builtinData);
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builtinData.emissiveColor = _EmissiveColor * lerp(float3(1.0, 1.0, 1.0), surfaceData.baseColor.rgb, _AlbedoAffectEmissive);
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#ifdef _EMISSIVE_COLOR_MAP
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// Use layer0 of LayerTexCoord to retrieve emissive color mapping information
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LayerTexCoord layerTexCoord;
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ZERO_INITIALIZE(LayerTexCoord, layerTexCoord);
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layerTexCoord.vertexNormalWS = input.worldToTangent[2].xyz;
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layerTexCoord.triplanarWeights = ComputeTriplanarWeights(layerTexCoord.vertexNormalWS);
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int mappingType = UV_MAPPING_UVSET;
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#if defined(_EMISSIVE_MAPPING_PLANAR)
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mappingType = UV_MAPPING_PLANAR;
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#elif defined(_EMISSIVE_MAPPING_TRIPLANAR)
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mappingType = UV_MAPPING_TRIPLANAR;
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#endif
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// Be sure that the compiler is aware that we don't use UV1 to UV3 for main layer so it can optimize code
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#ifndef LAYERED_LIT_SHADER
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ComputeLayerTexCoord(
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#else
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ComputeLayerTexCoord0(
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#endif
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input.texCoord0, input.texCoord1, input.texCoord2, input.texCoord3, _UVMappingMaskEmissive, _UVMappingMaskEmissive,
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_EmissiveColorMap_ST.xy, _EmissiveColorMap_ST.zw, float2(0.0, 0.0), float2(0.0, 0.0), 1.0, false,
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input.positionRWS, _TexWorldScaleEmissive,
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mappingType, layerTexCoord);
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#ifndef LAYERED_LIT_SHADER
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UVMapping emissiveMapMapping = layerTexCoord.base;
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#else
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UVMapping emissiveMapMapping = layerTexCoord.base0;
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#endif
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builtinData.emissiveColor *= SAMPLE_UVMAPPING_TEXTURE2D(_EmissiveColorMap, sampler_EmissiveColorMap, emissiveMapMapping).rgb;
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#endif // _EMISSIVE_COLOR_MAP
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#if (SHADERPASS == SHADERPASS_DISTORTION) || defined(DEBUG_DISPLAY)
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float3 distortion = SAMPLE_TEXTURE2D(_DistortionVectorMap, sampler_DistortionVectorMap, input.texCoord0).rgb;
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distortion.rg = distortion.rg * _DistortionVectorScale.xx + _DistortionVectorBias.xx;
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builtinData.distortion = distortion.rg * _DistortionScale;
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builtinData.distortionBlur = clamp(distortion.b * _DistortionBlurScale, 0.0, 1.0) * (_DistortionBlurRemapMax - _DistortionBlurRemapMin) + _DistortionBlurRemapMin;
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#endif
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builtinData.depthOffset = depthOffset;
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PostInitBuiltinData(V, posInput, surfaceData, builtinData);
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}
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