Marwan Ansari is a software engineer for a Chicago-based games company. He has a B.S. in computer science and mathematics from DePaul University and an M.S. from the University of Illinois at Chicago. He has 15 years of experience in console games development, video drivers and demos, military simulators, and application and tools development. He specializes in 3D computer graphics and has been published in ShaderX^2 and Game Programming Gems 4.