Worked on the mitsuba-renderer/mitsuba3 project, focusing on improving the accuracy of 3D rendering calculations. Addressed a core issue in the ray-triangle intersection logic by updating the ray_intersect_triangle function in C++ to correctly return values from the underlying C++ call. This targeted bug fix enhanced rendering precision by ensuring that ray intersections with triangles were computed accurately, which reduced potential visual artifacts in rendered scenes. The work was implemented with careful attention to minimizing the impact on existing code, maintaining overall stability. Utilized C++ for core development and Python for testing, demonstrating proficiency in both languages and 3D rendering workflows.