Ashwin Bhat updated the Hydra Viewport Toolbox repository to align with recent USD changes, focusing on material network extension and API adaptation. He introduced support for hgiPresent and material primvars, ensuring the toolbox remains compatible with evolving USD standards. By adjusting interop handle and destination parameter types, Ashwin reduced integration risk and prepared the codebase for future material workflows. His work involved extending the HdMaterialNetworkSchema with a new parameter, enabling forward-compatible material definitions. Utilizing C++, API integration, and graphics programming skills, Ashwin delivered a targeted feature that addressed both immediate compatibility needs and long-term extensibility for Autodesk’s graphics pipeline.