GenerateUVs ( int32 Width, int32 Height, float GutterSpace, const TArray< FVector3f >& VertexB..., const TArray< int32 >& IndexBuffer, const TArray< int32 >& AdjacencyBu..., TFunction< bool(float)>& Callback, TArray< FVector2D >& UVVertexBuffe..., TArray< int32 >& UVIndexBuffer, TArray< int32 >& VertexRemapArray, float& MaxStretch, int32& NumCharts )