int32 LOD,constUSkeletalMesh* SkelMesh,int32 MorphTargetIndex,constTArrayView< const FVector3f > Deltas,constTArrayView< const FVector3f > BaseVertexPositions,constTArrayView< const FVector3f > BaseNormals,constTArrayView< const int32 > ImportedVertexToRenderVertexMapping,constFColorVertexBuffer& ColorBuffer,EMLDeformerMaskChannelMaskChannel,bool bInvertGlobalMaskChannel,TArray< FVector3f >& OutDeltaNormals)