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18 行
1.2 KiB
18 行
1.2 KiB
#ifdef SHADER_VARIABLES_INCLUDE_CB
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#include "HDRP/Material/DiffusionProfile/DiffusionProfileSettings.cs.hlsl"
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// Warning: Unity is not able to losslessly transfer integers larger than 2^24 to the shader system.
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// Therefore, we bitcast uint to float in C#, and bitcast back to uint in the shader.
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uint _EnableSubsurfaceScattering; // Globally toggles subsurface and transmission scattering on/off
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float _TexturingModeFlags; // 1 bit/profile; 0 = PreAndPostScatter, 1 = PostScatter
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float _TransmissionFlags; // 1 bit/profile; 0 = regular, 1 = thin
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// Old SSS Model >>>
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float4 _HalfRcpVariancesAndWeights[DIFFUSION_PROFILE_COUNT][2]; // 2x Gaussians in RGB, A is interpolation weights
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// <<< Old SSS Model
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// Use float4 to avoid any packing issue between compute and pixel shaders
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float4 _ThicknessRemaps[DIFFUSION_PROFILE_COUNT]; // R: start, G = end - start, BA unused
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float4 _ShapeParams[DIFFUSION_PROFILE_COUNT]; // RGB = S = 1 / D, A = filter radius
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float4 _TransmissionTintsAndFresnel0[DIFFUSION_PROFILE_COUNT]; // RGB = 1/4 * color, A = fresnel0
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float4 _WorldScales[DIFFUSION_PROFILE_COUNT]; // X = meters per world unit; Y = world units per meter
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#else
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#endif
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