Edwin Earl Catmull (born March 31, 1945) is an American computer scientist and animator who served as the co-founder of Pixar and the President of Walt Disney Animation Studios. He has been honored for his contributions to 3-D computer graphics, including the 2019 ACM Turing Award.

Edwin Catmull was born on March 31, 1945, in Parkersburg, West Virginia. His family later moved to Salt Lake City, Utah, where his father first served as principal of Granite High School and then of Taylorsville High School.

Early in his life, Catmull found inspiration in Disney movies, including Peter Pan and Pinocchio, and wanted to be an animator; however, after finishing high school, he had no idea how to get there as there were no animation schools around that time. Because he also liked math and physics, he chose a scientific career instead. He also made animation using flip-books. Catmull graduated in 1969, with a B.S. in physics and computer science from the University of Utah. Initially interested in designing programming languages, Catmull encountered Ivan Sutherland, who had designed the computer drawing program Sketchpad, and changed^[vague] his interest to digital imaging. As a student of Sutherland, he was part of the university's DARPA program, sharing classes with James H. Clark, John Warnock and Alan Kay.

From that point, his main goal was to make feature films using advanced computer graphics, an unheard-of concept at the time. During his time at the university, he made two new fundamental computer-graphics discoveries: texture mapping and bicubic patches; and invented algorithms for spatial anti-aliasing and refining subdivision surfaces. Catmull says the idea for subdivision surfaces came from mathematical structures in his mind when he applied B-splines to non-four sided objects. He also independently discovered Z-buffering, which had been described eight months before by Wolfgang Straßer in his PhD thesis.

In 1972, Catmull made his earliest contribution to the film industry: a one-minute animated version of his left hand, titled A Computer Animated Hand, created with Fred Parke at the University of Utah. This short sequence was eventually picked up by a Hollywood producer and incorporated in the 1976 film Futureworld, which was the first film to use 3D computer graphics and a science-fiction sequel to the 1973 film Westworld, itself being the first to use a pixelated image generated by a computer. A Computer Animated Hand was selected for preservation in the National Film Registry of the Library of Congress in December 2011.

In 1974, Catmull earned his doctorate in computer science, and was hired by a company called Applicon. By November of that year, he had been contacted by Alexander Schure, the founder of the New York Institute of Technology, who offered him the position as the director of the institute's new Computer Graphics Lab. In that position, in 1977, he invented Tween, software for 2D animation that automatically produced frames of motion in between two frames.

However, Catmull's team lacked the ability to tell a story effectively via film, harming the effort to produce a motion picture via a computer. Catmull and his partner, Alvy Ray Smith, attempted to reach out to studios to alleviate this issue, but were generally unsuccessful until they attracted the attention of George Lucas at Lucasfilm.

Lucas approached Catmull in 1979 and asked him to lead a group to bring computer graphics, video editing, and digital sound into the entertainment field. Lucas had already made a deal with a computer company called Triple-I, and asked them to create a digital model of an X-wing fighter from Star Wars, which they did. In 1979, Catmull became the Vice President at Lucasfilm, set up to launch a "computer division" inside the company. By 1980 he had established three projects and recruited experts to lead them: the graphics group led by Alvy Ray Smith; the audio project led by Andy Moorer; the nonlinear editing project, led by Ralph Guggenheim.