Chaos::Utilities::FindClosestTriangle ( const TArray< TVector< FRealSingle,..., const TArray< FIntVector3 >& Surfa..., const TArray< TVector< FRealSingle,..., TArray< int32 >& SurfaceTriangleIn..., TArray< TVector< FRealSingle, 3 >> ..., const FRealSingle BoxSize )