bool ComputeUnion ( [IVoxelBasedCSG::FInterrupter](API\Plugins\ProxyLODMeshReduction\IVoxelBasedCSG\FInterrupter) & Interrupter, const [TArray](API\Runtime\Core\Containers\TArray)< [IVoxelBasedCSG::FPlacedMesh](API\Plugins\ProxyLODMeshReduction\IVoxelBasedCSG\FPlacedMesh) > & MeshArray, [FMeshDescription](API\Runtime\MeshDescription\FMeshDescription) & ResultMesh, FVector & AverageTranslation, double Adaptivity, double IsoSurfcae ) const