GetSkinnedTangentBasis ( USkeletalMeshComponent* Compon..., int32 VertexIndex, const FSkeletalMeshLODRenderData& ..., const FSkinWeightVertexBuffer& Ski..., TArray< FMatrix44f >& CachedRefToL..., FVector3f& OutTangentX, FVector3f& OutTangentY, FVector3f& OutTangentZ )