Timo Aila joined NVIDIA Research in 2007 from Helsinki University of Technology, where he led the computer graphics research group. His expertise ranges from real-time rendering in computer games to to high-quality image synthesis, with contributions to the PantaRay rendering system used in Avatar, Tintin, and Hobbit. He also gained expertise in mobile graphics as the chief scientist of Hybrid Graphics, which was acquired by NVIDIA in 2006. Timo is currently working on machine learning, with a special focus on generative models such as StyleGAN. Previously he had a central role in NVIDIA's research efforts on ray tracing, including the design of the RTX hardware units.