division, Bell Labs, and Pixar. His main research interest is in computer graphics and animation, but he has published broadly. (Other topics include operating systems, polymer physics, wireless networking, mathematics, and computer security.)
Past work projects include writing (with Bill Reeves) the first version of Pixar's animation system, special effects in Star Trek II, Return of the Jedi and A Bugs Life, a full-scale radio-controlled Walle and a light-field movie camera. He has half a dozen patents and two Academy Awards® for contributions to motion picture science and technology.
When not at work, he is an opera singer, musical tinkerer, and grandparent. His Erdos number is 2.