forked from BilalY/Rasagar
95 lines
4.5 KiB
HLSL
95 lines
4.5 KiB
HLSL
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// If you edit this file, be sure to check out if your moditications will impact CustomPassRenderers.hlsl
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// and CustomPassRenderersShader.template
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#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Sampling/SampleUVMapping.hlsl"
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#include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/BuiltinUtilities.hlsl"
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#include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/MaterialUtilities.hlsl"
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#if !defined(SHADER_STAGE_RAY_TRACING)
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#include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Decal/DecalUtilities.hlsl"
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#endif
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//-------------------------------------------------------------------------------------
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// Fill SurfaceData/Builtin data function
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//-------------------------------------------------------------------------------------
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void GetSurfaceAndBuiltinData(FragInputs input, float3 V, inout PositionInputs posInput, out SurfaceData surfaceData, out BuiltinData builtinData RAY_TRACING_OPTIONAL_PARAMETERS)
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{
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float2 unlitColorMapUv = TRANSFORM_TEX(input.texCoord0.xy, _UnlitColorMap);
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surfaceData.color = SAMPLE_TEXTURE2D(_UnlitColorMap, sampler_UnlitColorMap, unlitColorMapUv).rgb * _UnlitColor.rgb;
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float alpha = 1.0f;
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#ifdef DEBUG_DISPLAY
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if (_DebugMipMapMode == DEBUGMIPMAPMODE_NONE)
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#endif
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{
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alpha = SAMPLE_TEXTURE2D(_UnlitColorMap, sampler_UnlitColorMap, unlitColorMapUv).a;
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alpha = lerp(_AlphaRemapMin, _AlphaRemapMax, alpha);
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alpha *= _UnlitColor.a;
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}
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// The shader graph can require to export the geometry normal. We thus need to initialize this variable
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surfaceData.normalWS = 0.0;
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#if defined(_ENABLE_SHADOW_MATTE) && (SHADERPASS == SHADERPASS_PATH_TRACING)
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// Also initialize shadow tint to avoid warning (although it won't be used in that context)
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surfaceData.shadowTint = 0.0;
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#endif
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#ifdef _ALPHATEST_ON
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GENERIC_ALPHA_TEST(alpha, _AlphaCutoff);
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#endif
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// Builtin Data
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ZERO_BUILTIN_INITIALIZE(builtinData); // No call to InitBuiltinData as we don't have any lighting
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builtinData.opacity = alpha;
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#ifdef _ALPHATEST_ON
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// Used for sharpening by alpha to mask
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builtinData.alphaClipTreshold = _AlphaCutoff;
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#endif
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#if defined(DEBUG_DISPLAY)
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// Light Layers are currently not used for the Unlit shader (because it is not lit)
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// But Unlit objects do cast shadows according to their rendering layer mask, which is what we want to
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// display in the light layers visualization mode, therefore we need the renderingLayers
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builtinData.renderingLayers = GetMeshRenderingLayerMask();
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#endif
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#ifdef _EMISSIVE_COLOR_MAP
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builtinData.emissiveColor = SAMPLE_TEXTURE2D(_EmissiveColorMap, sampler_EmissiveColorMap, TRANSFORM_TEX(input.texCoord0.xy, _EmissiveColorMap)).rgb * _EmissiveColor;
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#else
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builtinData.emissiveColor = _EmissiveColor;
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#endif
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// Note: The code below is used only with EmmissiveMesh generated from Area Light with the option in the UX - So this code don't need
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// to be present for shader graph
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#if SHADERPASS == SHADERPASS_RAYTRACING_INDIRECT || SHADERPASS == SHADERPASS_RAYTRACING_GBUFFER || SHADERPASS == SHADERPASS_RAYTRACING_FORWARD
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builtinData.emissiveColor *= _IncludeIndirectLighting;
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#elif SHADERPASS == SHADERPASS_PATH_TRACING
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if (rayCone.spreadAngle < 0.0)
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{
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builtinData.emissiveColor *= _IncludeIndirectLighting;
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}
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#endif
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// Inverse pre-expose using _EmissiveExposureWeight weight
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float3 emissiveRcpExposure = builtinData.emissiveColor * GetInverseCurrentExposureMultiplier();
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builtinData.emissiveColor = lerp(emissiveRcpExposure, builtinData.emissiveColor, _EmissiveExposureWeight);
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#if (SHADERPASS == SHADERPASS_DISTORTION) || defined(DEBUG_DISPLAY)
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float3 distortion = SAMPLE_TEXTURE2D(_DistortionVectorMap, sampler_DistortionVectorMap, TRANSFORM_TEX(input.texCoord0.xy, _DistortionVectorMap)).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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#if defined(DEBUG_DISPLAY) && !defined(SHADER_STAGE_RAY_TRACING) && (SHADERPASS != SHADERPASS_LIGHT_TRANSPORT)
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if (_DebugMipMapMode != DEBUGMIPMAPMODE_NONE)
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{
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surfaceData.color = GET_TEXTURE_STREAMING_DEBUG(posInput.positionSS, input.texCoord0);
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}
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#endif
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ApplyDebugToBuiltinData(builtinData);
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RAY_TRACING_OPTIONAL_ALPHA_TEST_PASS
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}
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