SIGGRAPH Chair Judith R. Brown   Vice Chair Alan Chalmers University of Bristol   Treasurer Garry Paxinos Metro Link, Inc.   Past Chair Steve Cunningham San Diego Supercomputer Center   Director for Communications Leo Hourvitz Pulse Entertainment   Director for Education Mike McGrath Colorado School of Mines   Director for Professional Chapters Colleen Cleary Orange County Sheriff's Office   Directors-at-Large David S. Ebert University of Maryland Baltimore County   Gudrun Enger Metro Link, Inc.   Director for Publications Stephen Spencer University of Washington   SIGGRAPH Conference Advisory Group Chair G. Scott Owen Georgia State University   SIGGRAPH Conference Chief Staff Executive Dino Schweitzer Capstone Management Group, Inc.   ACM SIGGRAPH Program Director Erica Johnson ACM SIGGRAPH