Worked on the Autodesk/hydra-viewport-toolbox repository to update the Hydra Viewport Toolbox for alignment with recent USD changes, focusing on material network extension and API adaptation. The work involved integrating new hgiPresent and material primvars support, as well as adjusting interop handle and destination parameter types to match the updated USD API. By extending the HdMaterialNetworkSchema with a new parameter, the implementation enabled future material definitions and reduced integration risk for upcoming workflows. The project was developed using C++ and leveraged expertise in API integration and graphics programming, emphasizing forward-compatibility and readiness for USD-driven material workflows in graphics applications.