Muhammad Mobeen Movania received his PhD degree in Advance Computer Graphics and Visualization from Nanyang Technological Unviversity (NTU), Singapore. He completed his Bachelors of Science Honors (BCS(H)) in Computer Sciences from Iqra University, Karachi with majors in Computer Graphics and Multimedia. Before joining NTU, he was a junior graphics programmer at Data Communication and Control (DCC) Pvt. Ltd., Karachi, Pakistan. He was working on DirectX and OpenGL API for producing real-time interactive tactical simulators and dynamic integrated training simulators. His research interests include GPU-based volumetric rendering techniques, GPU technologies, real-time soft body physics, real-time dynamic shadows, real-time collision detection and response, and hierarchical geometric data structures. He authored a book chapter in a recent OpenGL book (OpenGL Insights: AK Peters/CRC Press). He is also the author of the OpenCloth project (http://code.google.com/p/opencloth), which implements various cloth simulation algorithms in OpenGL. His blog (http://mmmovania.blogspot.com) lists a lot of useful graphics tips and tricks. When not involved with computer graphics, he composes music and is an avid squash player. He is currently working at a research institute in Singapore.