Sam Leffler
American computer scientist
Samuel J Leffler is a computer scientist, known for his work on BSD, from the 1980s to FreeBSD in the present day. He created HylaFAX, LibTIFF, and the FreeBSD Wireless Device Drivers. He co-authored the Design and Implementation series of books.
While working for the Computer Systems Research Group (CSRG, UC Berkeley) at University of California, Berkeley, Leffler helped with 4.1 and 4.2 BSD release. After leaving Computer Systems Research Group, Leffler also worked at Lucasfilm, Pixar Animation Studios, Silicon Graphics, Alias Research, Softimage 3D, Cinetron Computer Systems and VMware. It while he was at Silicon Graphics that he developed HylaFAX. Later, Leffler became an independent system design consultant.
Computer Animation Rendering
André and Wally B. (1984) texturing/matteing
Luxo Jr. (1986) rendering
Tin Toy (1988) renderman team
Toy Story (1995) modeling & animation system development/Renderman software development
References
Bibliography
S. Leffler, M. McKusick, M. Karels, J. Quarterman: The Design and Implementation of the 4.3BSD UNIX Operating System, Addison-Wesley, January 1989, ISBN 0-201-06196-1. German translation published June 1990, ISBN 3-89319-239-5. Japanese translation published June 1991, ISBN 4-621-03607-6 (out of print).
“Sam Leffler” enters the record as american computer scientist. Crown Archives preserves that source wording while asking what Leffler, American and computer can confirm, complicate or overturn.
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“Sam Leffler” is worth following because a concise public description often conceals a longer documentary argument. Here, Leffler, American and computer provides the most credible route into that argument.
Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated Apr 28, 2026. The linked authority identifier is Q7411817. VIAF identifies the subject as 92369474. The Library of Congress control number is n88072404. 1 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1984, 1986, 1988 and 1995.
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This entry incorporates text from “Sam Leffler” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.