FTriangleMeshImplicitObject ( ParticlesType&& Particles, TArray< TVec3< IdxType >>&& Elements, TArray< uint16 >&& InMaterialIndices, TUniquePtr< TArray< int32 >>&& InExternalFaceIndexMap, TUniquePtr< TArray< int32 >>&& InExternalVertexIndexMap, const bool bInCullsBackFaceRaycast )