80 lines
1.7 KiB
HLSL
80 lines
1.7 KiB
HLSL
#ifndef FILAMENT_COMMON_LIGHTING
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#define FILAMENT_COMMON_LIGHTING
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struct Light {
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float4 colorIntensity; // rgb, pre-exposed intensity
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float3 l;
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half attenuation;
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half NoL;
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float3 worldPosition;
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};
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struct PixelParams {
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half3 diffuseColor;
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half perceptualRoughness;
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half perceptualRoughnessUnclamped;
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half3 f0;
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half roughness;
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half3 dfg;
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half3 energyCompensation;
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#if defined(MATERIAL_HAS_CLEAR_COAT)
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half clearCoat;
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half clearCoatPerceptualRoughness;
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half clearCoatRoughness;
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#endif
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#if defined(MATERIAL_HAS_SHEEN_COLOR)
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half3 sheenColor;
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#if !defined(SHADING_MODEL_CLOTH)
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half sheenRoughness;
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half sheenPerceptualRoughness;
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half sheenScaling;
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half sheenDFG;
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#endif
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#endif
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#if defined(MATERIAL_HAS_ANISOTROPY)
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half3 anisotropicT;
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half3 anisotropicB;
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half anisotropy;
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#endif
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#if defined(SHADING_MODEL_SUBSURFACE) || defined(HAS_REFRACTION)
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half thickness;
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#endif
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#if defined(SHADING_MODEL_SUBSURFACE)
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half3 subsurfaceColor;
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half subsurfacePower;
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#endif
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#if defined(SHADING_MODEL_CLOTH) && defined(MATERIAL_HAS_SUBSURFACE_COLOR)
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half3 subsurfaceColor;
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#endif
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#if defined(HAS_REFRACTION)
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half etaRI;
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half etaIR;
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half transmission;
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half uThickness;
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half3 absorption;
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#endif
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#if defined(MATERIAL_HAS_GLINT)
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float2 uv;
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float2 ddx_uv;
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float2 ddy_uv;
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float glintAlpha;
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float glintDensity;
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#endif
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};
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half computeMicroShadowing(half NoL, half visibility) {
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// Chan 2018, "Material Advances in Call of Duty: WWII"
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half aperture = rsqrt(1.0 - visibility);
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half microShadow = saturate(NoL * aperture);
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return microShadow * microShadow;
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};
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#endif // FILAMENT_COMMON_LIGHTING
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