Pat Hanrahan is Tableau’s Chief Scientist. He is also the CANON Professor of Computer Science and Electrical Engineering at Stanford University, where he teaches computer graphics. His current research involves visualization, image synthesis, and graphics systems and architectures. Before joining Stanford he was a faculty member at Princeton. Pat has also worked at Pixar where he developed volume rendering software and was the chief architect of the RenderMan Interface - a protocol that allows modeling programs to describe scenes to high quality rendering programs. Pat has received two Academy Awards for Science and Technology, the Spirit of America Creativity Award, the SIGGRAPH Computer Graphics Achievement Award, the SIGGRAPH Stephen A. Coons Award, and the IEEE Visualization Career Award. He is a member of the National Academy of Engineering and the American Academy of Arts and Sciences.