Marc Nienhaus is the product technology lead of the NVIDIA IndeX commercial software at NVIDIA. He manages the NVIDA IndeX software engineering team and is responsible for overall product architecture and applications in various domains. Before joining mental images' R&D rendering department and NVIDIA, Marc was a postdoc at Northwestern University and led research projects at the University of Potsdam. His research interests include parallel and distributed rendering and computing, scientific visualization, GPU-based rendering, and photorealistic and non-photorealistic expressive depictions. He holds a master's in mathematics with a minor in computer science from the University of Muenster and a Ph.D. in computer science from the Hasso Plattner Institute at the University of Potsdam. Marc has published various papers on GPU-based real-time rendering and non-photorealistic rendering.