Thomas Douglas Selkirk Duff (b. December 8, 1952) is a computer programmer. He was born in Toronto, Ontario, Canada and grew up in Toronto and Leaside. In 1974 he graduated from the University of Waterloo with a B.Math and, two years later, got a M.Sc. from the University of Toronto. December 8 is the 342nd day (343rd in leap years) of the year in the Gregorian calendar. ... 1952 (MCMLII) was a Leap year starting on Tuesday (link will take you to calendar). ... In computing, a programmer is someone who does computer programming and develops computer software. ... Motto: Ut Incepit Fidelis Sic Permanet (Latin: Loyal she began, loyal she remains) Official languages English Flower White Trillium Tree Eastern White Pine Bird Common Loon Capital Toronto Largest city Toronto Lieutenant-Governor James K. Bartleman Premier Dalton McGuinty (Liberal) Parliamentary representation  - House seat  - Senate seats 106 24 Area Total... Leaside is a neighbourhood in Toronto, Ontario, Canada. ... 1974 (MCMLXXIV) was a common year starting on Tuesday. ... The University of Waterloo, also known as UW, UWaterloo, or simply, Waterloo is a medium-sized research-intensive public university in the city of Waterloo, Ontario, Canada. ... A Bachelor of Mathematics is an undergraduate academic degree awarded for a courses taken in the study of mathematics or related disciplines, such as computer science or statistics. ... The University of Toronto (U of T) is a coeducational public research university in Toronto, Ontario. ...

Career

Tom Duff worked at the New York Institute of Technology Computer Graphics Lab and the Mark Williams Company in Chicago, and then later the Lucasfilm Computer Research and Development Division. While at Bell Labs Computing Science Research Center, he authored the well known "rc" shell for the (Unix-like) Plan 9 operating system. Duff has worked at Pixar Animation Studios since 1996. The New York Institute of Technology (NYIT) is a private, co-educational college in New York in the USA. The college has three campuses, two on Long Island, and one on the Upper West Side of Manhattan. ... Mark Williams Company - Wikipedia, the free encyclopedia /**/ @import /skins-1. ... Nickname: The Windy City, The Second City, Chi Town Motto: Urbs In Horto (Latin: City in a Garden), I Will Location in Chicagoland and Illinois Coordinates: Country United States State Illinois County Cook Incorporated March 4, 1837 Mayor Richard M. Daley (D) Area    - City 606. ... Lucasfilm Ltd. ... Bell Laboratories (also known as Bell Labs and formerly known as AT&T Bell Laboratories and Bell Telephone Laboratories) was the main research and development arm of the United States Bell System. ... The rc shell is the command line interface for the Version 10 Unix and Plan 9 operating systems. ... A Unix shell, also called the command line, provides the traditional user interface for the Unix operating system. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Pixar Animation Studios is an award-winning American computer animation studio based in Emeryville, California (USA). ...

Achievements

• In 1995 he was awarded (with others) the Academy Scientific and Engineering Award for his work on digital image compositing. With Bill Reeves he designed the first version of Pixar's Marionette 3-D animation system, which won the same award in 1997.

• While working at Lucasfilm, he created Duff's device, a loop-unrolling mechanism in C.

• On August 22, 2006, The United States Patent and Trademark Office issued U.S. Patent #7095409 to Pixar for a "Shot shading method and apparatus" invented by Tom Duff and Robert L. Cook

• On October 31, 2006, The United States Patent and Trademark Office issued U.S. Patent #7129940 to Pixar for a "Shot rendering method and apparatus" invented by Tom Duff and Robert L. Cook

1995 (MCMXCV) was a common year starting on Sunday of the Gregorian calendar. ... Pixar Animation Studios is an award-winning American computer animation studio based in Emeryville, California (USA). ... Phillip Huber (L) and David Alexander of the Huber Marionettes perform with marionettes hand-made by Huber for scenes for the feature film Tillamook Treasure 2005 Marionette in Prague A marionette is a type of puppet moved by strings, as in a puppet show. ... 1997 (MCMXCVII) was a common year starting on Wednesday of the Gregorian calendar. ... In computer science, Duffs Device is an optimized implementation of a serial copy that uses a technique widely applied in assembly language for loop unwinding. ... Wikibooks has a book on the topic of C Programming The C programming language (often, just C) is a general-purpose, procedural, imperative computer programming language developed in the early 1970s by Dennis Ritchie for use on the Unix operating system. ... The United States Patent and Trademark Office (PTO or USPTO) is an agency in the United States Department of Commerce that provides patent and trademark protection to inventors and businesses for their inventions and corporate and product identification. ... Pixar Animation Studios is an award-winning American computer animation studio based in Emeryville, California (USA). ... Robert L. Cook (December 10, 1952) is a computer graphics researcher and developer, and the co-creator of the RenderMan rendering software. ... The United States Patent and Trademark Office (PTO or USPTO) is an agency in the United States Department of Commerce that provides patent and trademark protection to inventors and businesses for their inventions and corporate and product identification. ... Pixar Animation Studios is an award-winning American computer animation studio based in Emeryville, California (USA). ... Robert L. Cook (December 10, 1952) is a computer graphics researcher and developer, and the co-creator of the RenderMan rendering software. ...

See Also

• Mothra - A web browser Tom Duff wrote for Plan 9.

Mothra is a web browser for the Plan 9 operating system. ...

External links

• Tom Duff (short cv on family web site)
• iq0 (personal web site)
• rc - The Plan 9 Shell

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