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adds alphatest shadows for translucent objects

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leverage the fact shadergen spits out a modified material per pass, in this instance the shadow pass, to basically flip the translucent aspect off if you've got both translucency and alphatesting flipped on.
This commit is contained in:
AzaezelX 2020-03-01 10:47:25 -06:00
parent 9c381caea2
commit ff4b025c2c
5 changed files with 7 additions and 3 deletions
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2
Engine/source/lighting/shadowMap/shadowMapPass.cpp
View file

@ -260,7 +260,7 @@ void ShadowRenderPassManager::addInst( RenderInst *inst )
return;
const BaseMaterialDefinition *mat = meshRI->matInst->getMaterial();
if ( !mat->castsShadows() || mat->isTranslucent() )
if ( !mat->castsShadows() || (mat->isTranslucent() && !mat->isAlphatest()))
{
// Do not add this instance, return here and avoid the default behavior
// of calling up to Parent::addInst()

2
Engine/source/lighting/shadowMap/shadowMatHook.cpp
View file

@ -190,6 +190,8 @@ void ShadowMaterialHook::_overrideFeatures( ProcessedMaterial *mat,
fd.features.removeFeature( MFT_TexAnim );
fd.features.removeFeature( MFT_DiffuseMap );
}
else
fd.features.removeFeature(MFT_IsTranslucent);
// HACK: Need to figure out how to enable these
// suckers without this override call!

1
Engine/source/materials/baseMaterialDefinition.h
View file

@ -37,6 +37,7 @@ public:
virtual bool isDoubleSided() const = 0;
virtual bool isLightmapped() const = 0;
virtual bool castsShadows() const = 0;
virtual bool isAlphatest() const = 0;
};
#endif // _BASEMATERIALDEFINITION_H_

3
Engine/source/materials/materialDefinition.h
View file

@ -395,7 +395,8 @@ public:
/// Allocates and returns a BaseMatInstance for this material. Caller is responsible
/// for freeing the instance
virtual BaseMatInstance* createMatInstance();
virtual bool isTranslucent() const { return mTranslucent && mTranslucentBlendOp != Material::None; }
virtual bool isTranslucent() const { return mTranslucent && mTranslucentBlendOp != Material::None; }
virtual bool isAlphatest() const { return mAlphaTest; }
virtual bool isDoubleSided() const { return mDoubleSided; }
virtual bool isAutoGenerated() const { return mAutoGenerated; }
virtual void setAutoGenerated(bool isAutoGenerated) { mAutoGenerated = isAutoGenerated; }

2
Engine/source/ts/tsMesh.cpp
View file

@ -280,7 +280,7 @@ void TSMesh::innerRender( TSMaterialList *materials, const TSRenderState &rdata,
ri->primBuffIndex = mPrimBufferOffset + i;
// Translucent materials need the translucent type.
if ( matInst->getMaterial()->isTranslucent() )
if ( matInst->getMaterial()->isTranslucent() && (!(matInst->getMaterial()->isAlphatest() && state->isShadowPass())))
{
ri->type = RenderPassManager::RIT_Translucent;
ri->translucentSort = true;