preserveOriginalTopology Declarationstatic let preserveOriginalTopology: SCNSceneSource.LoadingOption See AlsoType PropertiesanimationImportPolicySCNSceneSource.AnimationImportPolicyassetDirectoryURLscheckConsistencyconvertToYUpconvertUnitsToMeterscreateNormalsIfAbsentflattenSceneoverrideAssetURLsstrictConformanceuseSafeMode