Pixar
Pixar Animation Studios is a computer animation studio, which was founded by  in 1979 as the Graphics Group (short for The Computer Graphics Group of the Lucasfilm Computer Division as its full, somewhat unwieldy, name was), occasionally also referred to as the (Computer) Graphics Project or Lucasfilm Graphics Group. At the time of its founding it comprised one third of the entire Computer Division of Lucasfilm Ltd. In 1981, the Graphics Group created the "Project Genesis" demonstration sequence, invariably referred to as the "Genesis Demo" by the production staff (American Cinematographer, October 1982, pp. 1038), seen in , and re-used in the subsequent two Star Trek films. It has the distinction of being the very first fully textured CGI effect featured in the motion picture industry, seen by the general public.

Some of the founding core staff, like Ed Catmull, were handpicked by Lucas himself, and all of them had backgrounds in the computer sciences. Lucas, according to the company's homepage, had set up the organization in order to develop a digital (nonlinear) film editing system, a digital sound editing system, a digital film printer, and further exploration of computer graphics. It was especially the latter aspect that drew in the computer scientists, but as one of the founding staffers, Alvy Ray Smith, discovered, "We thought he had hired us to do computer graphics because that's what we were really good at, but it was actually to build three machines.(...) George didn't know what he had." It wasn't until producer Robert Sallin came inquiring what could be done with a scripted scene, they referred to as the "Genesis Demo", that Smith knew this was the opportunity, he and his team had been waiting for. Sallin, as it turned out, had a far more modest effect in mind, that involved an aquarium with a rock turning into something living. Smith continued, "I said, "You guys know what you can and can't do with computer graphics?" And they said, "No." I said, "Well, I do, so let me go home overnight and think about this, and I'll come back with a proposal for something we can actually execute." () What Smith, who had worked for a short spell at the Jet Propulsion Laboratory where he had worked (with, among others, Rick Sternbach) on the real world Voyager flyby movies for NASA, came up with, together with Loren Carpenter, was the flyby scene. It was quickly approved, and the team could get started on the sequence that was eventually featured, setting the company on its way to the fame and glory it has since then acquired.

A later addition to the Group, Jerry Jeffres, by then "one of our resident think-tank people", according to his ILM Animation Supervisor Charles Mullen, provided the follow-up movie  with one small, nearly unnoticed CGI effect, that of the holographic World War I combat computer game seen being played by two 23rd century denizens in the San Francisco bar. Almost as a side project, Jeffres created the sequence on a small Hewlett-Packard personal computer and developed a custom program for the wireframe animation. (Cinefex, issue 18, p. 60) While Mullen was credited, neither Jeffres nor the Group has received credit for the contribution.

Ultimately known as ILM Computer Graphics, the group provided subsequently the signature "slingshot/time travel" effects sequence in  as well, and were credited as such – contrary to The Wrath of Khan where it were the individual staffers who received official credits, being lumped under mother company Industrial Light & Magic (ILM). It was the group's last major project as part of ILM, the visual effects subsidiary of Lucasfilm, before becoming Pixar. (Industrial Light & Magic: Into the Digital Realm, p. 113) The sequence, especially the what Supervisor George Joblove has coined the "dream sequence", (Computer Aided Design T363) was technically as groundbreaking as the "Genesis Demo" effect had been previously, but while much of the executive staff was still the same, neither they nor any of their team actually creating the effect received individual credits this time around. Though only about thirty seconds long, the sophistication of the sequence was such that it stretched contemporary computer processing power to its then-outermost capacity, as it took weeks to render. (Industrial Light & Magic: Into the Digital Realm, p. 113)

Years later, as Pixar, the company also provided software support for the production of  in 1998, for which it received an official credit.

Becoming Pixar
The Graphics Group became an independent company in 1986 with its purchase by founder and then-former CEO of Apple Computers, Steve Jobs. On this occasion the company was restructured and rechristened "Pixar Animation Studios".

ILM itself proceeded to form a new in-house digital effects department from the remnants of the Computer Division – briefly naming the department "ILM Computer Graphics" and incorporating those Group staffers who had opted to remain with ILM, which included most of the The Voyage Home team. (Computer Aided Design T363) This time, the department was created purely for producing effects using digital techniques and technology developed by third parties, such as the newly independent Pixar, instead of inventing of these technologies themselves – in essence reversing the original intent founder Lucas had for the group.

After aligning with Walt Disney Pictures, Pixar became a prolific producer of highly successful computer-animated feature films, with such films as the  series, , ,  (the latter two scored by Michael Giacchino), and the   (on which Ben Burtt served as sound designer, co-earning two Academy Award nominations) amongst them and earning the company and its staffers a plethora of Academy Awards. Like its former mother/sister company, Pixar has in the process attained a solid reputation as one of the foremost animation studios. In 2006, Disney formalized its relationship with Pixar, acquiring the company – implicitly conceding that Pixar had by then eclipsed Disney as an animation powerhouse. Though now part of Disney, Pixar still functions as a separate entity.

The name "Pixar" was derived from the name given to a piece of equipment that the Graphics Group was developing at the time of The Wrath of Khan, to speed up computing time. (American Cinematographer, October 1982, p. 1050) "Pixar" was a Spanish verb invented by Smith meaning "to make pictures". 

When Disney acquired Lucasfilm (including subsidiary ILM) from George Lucas in 2012, Pixar and ILM were reunited under one roof for the first time since their separation in 1986.

Genesis demonstration team

The following staffers were responsible for the final visualization of the "Genesis Demo",
Loren Carpenter – fractal mountains, atmosphere and shock wave
Ed Catmull – concept, motion blurring and supervising
Pat Cole – projectile and retina sequences
Rob Cook – texture-mapped sphere
Tom Duff – cratered sphere
 – ILM matte painter; pull-away planet surface painting (using one of the very first paint computer software programs, developed in-house at ILM)
Dr. Robert Langridge (subcontractor from Computer Graphics Laboratory, University of California, San Francisco) – initial molecular sequence
Robert D. Poor
Thomas Porter – stars, compositing and paint
William Reeves – fires
Alvy Ray Smith – concept and direction
Jim Veilleux – concept, ILM visual effects supervisor

San Fransico Bar computer game team
Jerry Jeffres – concept, animator, software developer
Charles Mullen – ILM animation supervisor

Slingshot effect aka "Dream Sequence" team
The following staffers were responsible for the final visualization of the "Slingshot effect,"†
Don Dow – ILM effects photographer
George Joblove – computer group supervisor
Lincoln Hu – sotware engineer
Ralph McQuarrie – ILM concept designer
Charles Mullen – ILM animator
Jonathan Luskin – software developer
Douglass Scott Kay – computer group supervisor
Kenneth Ralston – ILM visual effects supervisor
Jay Riddle – animator
Bruce Wallace – sotware engineer
Some of these staffers were featured in the 1987 documentary Computer Aided Design T363.
† – staff as ascertained in the 1987 Cinefex article listed below

Further reading
"The Genesis Demo", Alvy Ray Smith, American Cinematographer, October 1982, pp. 1038-1039, 1048-1050
"Behind the Genesis Effect", David Hutchison,  issue 64, November 1982, pp. 17-21 
"New Worlds Aborning", David Hutchison and Jim Veilleux, Starlog photo guidebook Special Effects, Vol. 4, 1984, pp. 62-71.
"Humpback to Future", Jody Duncan Shay, Cinefex, Issue 29, February 1987, pp. 4-31 
"Virtual Space Explorations", Mark Cotta Vaz and Patricia Rose Duignan, Industrial Light & Magic: Into the Digital Realm, Chapter Six, October 1996, pp. 107-120.
"Behind the Scenes: The Genesis Demo", , September 2002, pp. 50-53

Documentaries
Computer Graphics in Star Trek: The Wrath of Khan, 1982
Computer Aided Design T363, 1987
"Where No Man Has Gone Before: The Visual Effects of Star Trek II: The Wrath of Khan", 2002 DVD/Blu-ray special feature
"From Outer Space to the Ocean", 2003 DVD/Blu-ray special feature

External links 
 Pixar – official website
 
 
 The Pixar Blog (unofficial news source)
 PixarPlanet/Upcoming Pixar fan forums and news
 The Genesis Demo – on-line version of the American Cinematographer article
TV and film production companies
Digital visual effects companies