CGLab (since 2016.09) focuses on conducting research on photorealistic rendering, which includes a variety of optimization techniques for ray tracing. The main applications of photorealistic rendering are CG movies, animations, 3D games and immersive technology (AR and VR).
K. Stelzner, K. Kersting, and A. Kosiorek. (2021)cite arxiv:2104.01148Comment: 15 pages, 3 figures. For project page with videos, see http://stelzner.github.io/obsurf/.