Jackson Sun developed a foundational API endpoint for dynamic material updates within the Autodesk/hydra-viewport-toolbox repository. He introduced the updateMaterial function in the SceneDataSource module, establishing an extensible contract for future runtime material property changes. The initial implementation, written in C++, serves as a stub that logs a runtime error, providing a safe integration point and clear traceability for subsequent development. Jackson’s work focused on API development and scene management, laying the groundwork for material-driven workflows in the viewport toolbox. This disciplined, single-feature delivery demonstrates a methodical approach to evolving the codebase while maintaining robust version control practices.