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Fixed the engergy conservation problem when pbr mode is toon.

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Misaki
2025-05-13 21:35:52 +09:00
parent 961db806e9
commit d19322b768
11 changed files with 72 additions and 53 deletions
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8
Runtime/Shaders/Includes/Lighting/UtsMaterialEvaluation.hlsl
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@@ -39,10 +39,10 @@ float3 ComputeSpecularTerm(UtsBSDFData bsdfData, PreLightData preLightData, floa
#elif _PBR_MODE_ANISOTROPY
float TdotV = dot(bsdfData.tangentWS, V);
float BdotV = dot(bsdfData.bitangentWS, V);
ConvertAnisotropyToRoughness(bsdfData.perceptualRoughness, bsdfData.anisotropy, bsdfData.roughnessT, bsdfData.roughnessB);
partLambdaV = GetSmithJointGGXAnisoPartLambdaV(TdotV, BdotV, clampedNdotV, bsdfData.roughnessT, bsdfData.roughnessB);
// For anisotropy we must not saturate these values
float TdotH = dot(bsdfData.tangentWS, H);
float TdotL = dot(bsdfData.tangentWS, L);
@@ -63,11 +63,9 @@ float3 ComputeSpecularTerm(UtsBSDFData bsdfData, PreLightData preLightData, floa
float specularExponent = RoughnessToBlinnPhongSpecularExponent(PerceptualRoughnessToRoughness(bsdfData.perceptualRoughness));
DV = pow(NdotH, 5.0 * specularExponent);
DV = StepFeatherToon(DV, _ToonSpecularStep, _ToonSpecularFeather);
//specTerm = pow(NdotH, 5.0 * specularExponent);
//specTerm = StepFeatherToon(specTerm, _ToonSpecularStep, _ToonSpecularFeather);
//return specTerm * ColorSpaceDielectricSpec.rgb * clampedNdotL;
#endif
// We use specularFGD here to approximate F.
specTerm = DV * preLightData.specularFGD * clampedNdotL;
return specTerm;
#endif