Worked on enhancing material realism in the mitsuba-renderer/mitsuba3 repository by implementing texture-supported spatially varying roughness and index of refraction for the Pplastic material. Leveraged C++ and advanced graphics programming techniques to enable per-texture control of roughness and IOR, allowing artists to simulate real-world optical property variations across surfaces. Integrated these features with the existing texture pipeline to maintain compatibility with established rendering workflows. This addition allows for dynamic adjustment of material properties based on texture maps, supporting more accurate and flexible rendering of complex materials. Focus remained on rendering techniques and seamless workflow integration throughout the development process.