void ImposterCaptureMaterialHook::init( BaseMatInstance *inMat )
{
// We cannot capture impostors on custom materials
// as we don't know how to get just diffuse and just
// normals rendering.
if ( dynamic_cast<CustomMaterial*>( inMat->getMaterial() ) )
return;
// Tweak the feature data to include just what we need.
FeatureSet features;
features.addFeature( MFT_VertTransform );
features.addFeature( MFT_DiffuseMap );
features.addFeature( MFT_OverlayMap );
features.addFeature( MFT_DetailMap );
features.addFeature( MFT_DiffuseColor );
features.addFeature( MFT_AlphaTest );
features.addFeature( MFT_IsTranslucent );
const String &matName = inMat->getMaterial()->getName();
mDiffuseMatInst = MATMGR->createMatInstance( matName );
mDiffuseMatInst->getFeaturesDelegate().bind( &ImposterCaptureMaterialHook::_overrideFeatures );
mDiffuseMatInst->init( features, inMat->getVertexFormat() );
features.addFeature( MFT_IsDXTnm );
features.addFeature( MFT_NormalMap );
features.addFeature( MFT_NormalsOut );
mNormalsMatInst = MATMGR->createMatInstance( matName );
mNormalsMatInst->getFeaturesDelegate().bind( &ImposterCaptureMaterialHook::_overrideFeatures );
mNormalsMatInst->init( features, inMat->getVertexFormat() );
}
void ShadowMaterialHook::init( BaseMatInstance *inMat )
{
if( !inMat->isValid() )
return;
// Tweak the feature data to include just what we need.
FeatureSet features;
features.addFeature( MFT_VertTransform );
features.addFeature( MFT_DiffuseMap );
features.addFeature( MFT_TexAnim );
features.addFeature( MFT_AlphaTest );
features.addFeature( MFT_Visibility );
// Actually we want to include features from the inMat
// if they operate on the preTransform verts so things
// like wind/deformation effects will also affect the shadow.
const FeatureSet &inFeatures = inMat->getFeatures();
for ( U32 i = 0; i < inFeatures.getCount(); i++ )
{
const FeatureType& ft = inFeatures.getAt(i);
if ( ft.getGroup() == MFG_PreTransform )
features.addFeature( ft );
}
// Do instancing in shadows if we can.
if ( inFeatures.hasFeature( MFT_UseInstancing ) )
features.addFeature( MFT_UseInstancing );
Material *shadowMat = (Material*)inMat->getMaterial();
if ( dynamic_cast<CustomMaterial*>( shadowMat ) )
{
// This is a custom material... who knows what it really does, but
// if it wasn't already filtered out of the shadow render then just
// give it some default depth out material.
shadowMat = MATMGR->getMaterialDefinitionByName( "AL_DefaultShadowMaterial" );
}
// By default we want to disable some states
// that the material might enable for us.
GFXStateBlockDesc forced;
forced.setBlend( false );
forced.setAlphaTest( false );
// We should force on zwrite as the prepass
// will disable it by default.
forced.setZReadWrite( true, true );
// TODO: Should we render backfaces for
// shadows or does the ESM take care of
// all our acne issues?
//forced.setCullMode( GFXCullCW );
// Vector, and spotlights use the same shadow material.
BaseMatInstance *newMat = new ShadowMatInstance( shadowMat );
newMat->setUserObject( inMat->getUserObject() );
newMat->getFeaturesDelegate().bind( &ShadowMaterialHook::_overrideFeatures );
newMat->addStateBlockDesc( forced );
if( !newMat->init( features, inMat->getVertexFormat() ) )
{
SAFE_DELETE( newMat );
newMat = MATMGR->createWarningMatInstance();
}
mShadowMat[ShadowType_Spot] = newMat;
newMat = new ShadowMatInstance( shadowMat );
newMat->setUserObject( inMat->getUserObject() );
newMat->getFeaturesDelegate().bind( &ShadowMaterialHook::_overrideFeatures );
forced.setCullMode( GFXCullCW );
newMat->addStateBlockDesc( forced );
forced.cullDefined = false;
newMat->addShaderMacro( "CUBE_SHADOW_MAP", "" );
newMat->init( features, inMat->getVertexFormat() );
mShadowMat[ShadowType_CubeMap] = newMat;
// A dual paraboloid shadow rendered in a single draw call.
features.addFeature( MFT_ParaboloidVertTransform );
features.addFeature( MFT_IsSinglePassParaboloid );
features.removeFeature( MFT_VertTransform );
newMat = new ShadowMatInstance( shadowMat );
newMat->setUserObject( inMat->getUserObject() );
GFXStateBlockDesc noCull( forced );
noCull.setCullMode( GFXCullNone );
newMat->addStateBlockDesc( noCull );
newMat->getFeaturesDelegate().bind( &ShadowMaterialHook::_overrideFeatures );
newMat->init( features, inMat->getVertexFormat() );
mShadowMat[ShadowType_DualParaboloidSinglePass] = newMat;
// Regular dual paraboloid shadow.
features.addFeature( MFT_ParaboloidVertTransform );
features.removeFeature( MFT_IsSinglePassParaboloid );
features.removeFeature( MFT_VertTransform );
newMat = new ShadowMatInstance( shadowMat );
newMat->setUserObject( inMat->getUserObject() );
newMat->addStateBlockDesc( forced );
newMat->getFeaturesDelegate().bind( &ShadowMaterialHook::_overrideFeatures );
newMat->init( features, inMat->getVertexFormat() );
mShadowMat[ShadowType_DualParaboloid] = newMat;
/*
// A single paraboloid shadow.
newMat = new ShadowMatInstance( startMatInstance );
GFXStateBlockDesc noCull;
noCull.setCullMode( GFXCullNone );
newMat->addStateBlockDesc( noCull );
newMat->getFeaturesDelegate().bind( &ShadowMaterialHook::_overrideFeatures );
newMat->init( features, globalFeatures, inMat->getVertexFormat() );
mShadowMat[ShadowType_DualParaboloidSinglePass] = newMat;
*/
}