From Wikipedia, the free encyclopedia William "Bill" Kroyer is an award-winning director of animation and computer graphics commercials, short films, movie titles and theatrical films. He and Jerry Rees were the main animators for the CGI sequences in Tron. He currently the head of the Digital Arts department at Lawrence and Kristina Dodge College of Film and Media Arts at Chapman University. Description above from the Wikipedia article Bill Kroyer, licensed under CC-BY-SA, full list of contributors on Wikipedia.