Том Дафф

Томас Дуглас Селкирк Дафф
Томас Дуглас Селкирк Дафф
	Том Дафф в своем офисе Pixar
Born	December 8, 1952 (age 71); Toronto
Nationality	Canadian
Occupation	Computer programmer
Years active	1974-2021
Known for	Animation software
Notable work	Duff's device;

Томас Дуглас Селкирк Дафф (родился 8 декабря 1952 года) — канадский программист .

Ранняя жизнь [ править ]

Дафф родился в Торонто , Онтарио , Канада, и был назван в честь своего предполагаемого предка, пятого графа Селкирка . Он вырос в Торонто и Лисайде . В 1974 году он окончил Университет Ватерлоо со степенью бакалавра математики , а два года спустя получил степень магистра наук. из Университета Торонто .

Карьера [ править ]

Duff worked at the New York Institute of Technology Computer Graphics Lab and the Mark Williams Company in Chicago before moving to Lucasfilm's Computer Research and Development Division. He and Thomas Porter, another Lucasfilm employee, developed a new approach to compositing images; their 1984 paper, "Compositing Digital Images",^[1] is "[t]he seminal work on an algebra for image compositing", according to Keith Packard.^[2] а « композитинг Портера-Даффа » теперь является ключевым методом компьютерной графики. (См., например, XRender и Glitz.)

Duff later worked for 12 years at Bell Labs Computing Science Research Center, where he worked on computer graphics, wireless networking, and Plan 9;^[3] in the course of his work there, he authored the well known "rc" shell for the Version 10 Unix operating system.

Duff worked at Pixar Animation Studios from 1996 until his retirement in 2021.^[4]

Achievements[edit]

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 7,095,409 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 7,129,940 to Pixar for a "Shot rendering method and apparatus" invented by Tom Duff and Robert L. Cook.
In 2015 he became the 21st awardee of the J.W. Graham Medal, named in honor of Wes Graham an early influential Professor of Computer Science at the University of Waterloo, and annually awarded to an influential alumnus of the University's Faculty of Mathematics.^[5]

Appearances[edit]

Tom Duff makes a cameo appearance in the Niven/Pournelle science fiction novel Footfall as a co-discoverer of the invading spaceship: "Chap named Tom Duff, a computer type, spotted it."
Tom Duff appears briefly in the documentary film "Noisy People" (dir Tim Perkis, 2006) playing the banjo.^[6]

References[edit]

^ Porter, Thomas; Tom Duff (1984). "Compositing digital images". Proceedings of the 11th annual conference on Computer graphics and interactive techniques. Vol. 18. pp. 253–259. doi:10.1145/800031.808606. ISBN 978-0-89791-138-2. S2CID 18663039.^{[permanent dead link]}
(Available at pixar.com.)
^ Keith Packard's webpage about Porter & Duff's 1984 paper
^ "Shoot-out: Most annoying compiler error message | Lambda the Ultimate".
^ Duff, Tom [@TomDuff] (January 15, 2021). "Today, I'm retiring from Pixar, 40+ years after I first started. It's been a great run. Keep making the world's best movies #pixar" (Tweet) – via Twitter.
^ "Recipients of the J.W. Graham Medal in Computing & Innovation". University of Waterloo. Retrieved 2015-09-25.
^ "Noisy People: Improvising a Musical Life". Noisypeople.perkis.com. Retrieved 2022-08-12.
^ N.J.A. Sloane, R.H. Hardin, T.S. Duff, J.H. Conway: "Minimal-Energy Clusters of Hard Spheres", Discrete & Computational Geometry 14, No. 3, 237–259, 1995.
^ Дж. Х. Конвей , Х. Т. Крофт, П. Эрдос , MJT Гай : «О распределении значений углов, определяемых копланарными точками», J. London Math. Соц. , II., сер. 19, 137–143, 1979.

Внешние ссылки [ править ]

Том Дафф (краткое резюме на семейном сайте)
iq0 (личный веб-сайт)
rc - План 9 Оболочка
Краткое введение в библиотеку панелей Plan 9, набор инструментов с графическим интерфейсом от Тома Даффа.
Том Дафф « Вирусные атаки на безопасность систем UNIX », AT&T 11273-880728-02TMS, август 1987 г.

[1] Porter, Thomas; Tom Duff (1984). "Compositing digital images". Proceedings of the 11th annual conference on Computer graphics and interactive techniques. Vol. 18. pp. 253–259. doi:10.1145/800031.808606. ISBN 978-0-89791-138-2. S2CID 18663039.^{[permanent dead link]}
(Available at pixar.com.)

[2] Keith Packard's webpage about Porter & Duff's 1984 paper

[3] "Shoot-out: Most annoying compiler error message | Lambda the Ultimate".

[4] Duff, Tom [@TomDuff] (January 15, 2021). "Today, I'm retiring from Pixar, 40+ years after I first started. It's been a great run. Keep making the world's best movies #pixar" (Tweet) – via Twitter.

[JWGrahamMedal-5] "Recipients of the J.W. Graham Medal in Computing & Innovation". University of Waterloo. Retrieved 2015-09-25.

[6] "Noisy People: Improvising a Musical Life". Noisypeople.perkis.com. Retrieved 2022-08-12.

[7] N.J.A. Sloane, R.H. Hardin, T.S. Duff, J.H. Conway: "Minimal-Energy Clusters of Hard Spheres", Discrete & Computational Geometry 14, No. 3, 237–259, 1995.

[8] Дж. Х. Конвей , Х. Т. Крофт, П. Эрдос , MJT Гай : «О распределении значений углов, определяемых копланарными точками», J. London Math. Соц. , II., сер. 19, 137–143, 1979.

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