BuildSimulationMesh ( TArray< FVector3f >& Positions, TArray< FVector3f >& Normals, TArray< uint32 >& Indices, TArray< FVector2f >& PatternsPosit..., TArray< uint32 >& PatternsIndices, TArray< uint32 >& PatternToWeldedI..., TArray< TArray< int32 >>* Opti... )