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Fix issue with blocky artifacts when decals affecting metallic are applied on specular color workflow #823

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Merged
merged 3 commits into from
Jun 10, 2020
Merged

Fix issue with blocky artifacts when decals affecting metallic are applied on specular color workflow #823

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489d355
specular color needs to be weighted back with the blend factor.
FrancescoC-unity Jun 10, 2020
ee310dc
changelog
FrancescoC-unity Jun 10, 2020
eb32c4e
Merge branch 'HDRP/staging' into HDRP/fix-blocky-decal-issue
sebastienlagarde Jun 10, 2020
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1 change: 1 addition & 0 deletions com.unity.render-pipelines.high-definition/CHANGELOG.md
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Expand Up @@ -660,6 +660,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
- The ray traced indrect diffuse and RTGI were combined wrongly with the rest of the lighting (1254318).
- Fixed an exception happening when using RTSSS without using RTShadows.
- Fix inconsistencies with transparent motion vectors and opaque by allowing camera only transparent motion vectors.
- Fix issue causing blocky artifacts when decals affect metallic and are applied on material with specular color workflow.

### Changed
- Improve MIP selection for decals on Transparents
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2 changes: 1 addition & 1 deletion com.unity.render-pipelines.high-definition/Runtime/Material/Lit/LitDecalData.hlsl
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Expand Up @@ -16,7 +16,7 @@ void ApplyDecalToSurfaceData(DecalSurfaceData decalSurfaceData, inout SurfaceDat
#ifdef DECALS_4RT // only smoothness in 3RT mode
#ifdef _MATERIAL_FEATURE_SPECULAR_COLOR
float3 decalSpecularColor = ComputeFresnel0((decalSurfaceData.HTileMask & DBUFFERHTILEBIT_DIFFUSE) ? decalSurfaceData.baseColor.xyz : float3(1.0, 1.0, 1.0), decalSurfaceData.mask.x, DEFAULT_SPECULAR_VALUE);
surfaceData.specularColor = surfaceData.specularColor * decalSurfaceData.MAOSBlend.x + decalSpecularColor;
surfaceData.specularColor = surfaceData.specularColor * decalSurfaceData.MAOSBlend.x + decalSpecularColor * (1.0f - decalSurfaceData.MAOSBlend.x);
#else
surfaceData.metallic = surfaceData.metallic * decalSurfaceData.MAOSBlend.x + decalSurfaceData.mask.x;
#endif
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