He is primarily interested in representing shapes and their deformation, using point sampled geometry, implicit surfaces, explicit representations, and linear spaces of base shapes. For his earlier work on morphing he received a PhD in Computer Science from Darmstadt University of Technology. He has presented and lectured on topics related to shape representations at SIGGRAPH and other conferences. Marc Alexa has been a co-chair and has served as a member of several committees of major graphics conferences, and will be papers co-chair of Eurographics 2005 as well as general co-chair of the ACM/Eurographics Symposium on Point Based Rendering 2005.