Philip Dutre is a Professor in the Department of Computer Science at the Katholieke Universiteit Leuven (Belgium). His research areas of interest include photorealistic graphics, real-time global illumination, texture synthesis and perceptual-based rendering algorithms. He received his Ph.D. from the University of Leuven and spent several years at the Program of Computer Graphics at Cornell University. Philippe Bekaert is associate professor in computer graphics at the Expertise Center for Digital Media of Hasselt University, Belgium. He obtained a Masters degree in physics (1991) and computer science (1993), as well as a Ph.D. in computer science (1999) from the Katholieke Universiteit Leuven. Kavita Bala is an Assistant Professor in the Computer Science Department and Program of Computer Graphics at Cornell University. She specializes in scalable computer graphics leading research projects in interactive rendering, scalable illumination, perceptually-based rendering, feature-based graphics, perceptually-based rendering, and image-based texturing. Bala received her B. Tech. from the Indian Institute of Technology (IIT, Bombay), and her S.M. and Ph.D. from MIT.