Our main research interest is in computer graphics for virtual and augmented reality at Facebook Reality Labs with current research problems in low-power real-time rendering, including neural rendering and perceptual rendering, as well as differentiable rendering. Our recent publications are on perceptual and neural rendering, advanced light transport, differentiable rendering, image reconstruction, and shading methods in both real-time and offline graphics. Prior work at Nvidia Research includes designing RTX hardware and pioneering real-time (1spp) denoising. PhD in offline rendering, an ex-R&D at Crytek, working on real-time rendering (such as Light Propagation Volumes) for Crysis franchise and CryENGINE 3.