API Reference > imodeljs-backend > iModels > IModelTransformOptions > cloneUsingBinaryGeometry cloneUsingBinaryGeometry cloneUsingBinaryGeometry: undefined | boolean Flag that indicates whether or not the transformation process should clone using binary geometry. Only transformations that need to manipulate geometry should consider setting this flag as it impacts performance. note The default is true. Defined in core/backend/src/IModelTransformer.ts Line 88 Last Updated: 11 June, 2024