Although Siggraph doesn’t get rolling in earnest until the show floor opens on Tuesday, Monday was a plenty busy day for the legendary Ed Catmull. Ed, of course, is now president of both Pixar and Disney Animation Studios, but Monday, he went back to his computer graphics roots with a full schedule that included a featured speech, a press conference celebrating the–believe this if you can–20th Anniversary of RenderMan (it’s in version 14.0! has any software ever gone to a 14th version without changing its name or ownership?), and a book signing on behalf of a legion of CG geeks who were lined up down the hallway on the second floor of the West Hall of the LA Convention Center today. (He was signing “To Infinity and Beyond! The Story of Pixar Animation Studios” by Karen Paik–Catmull penned the forward.) more