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Pixar RenderMan (formerly PhotoRealistic RenderMan) is proprietary photorealistic 3D rendering software produced by
Pixar Animation Studios Pixar Animation Studios (commonly known as Pixar () and stylized as P I X A R) is an American computer animation studio known for its critically and commercially successful computer animated feature films. It is based in Emeryville, Califor ...
. Pixar uses RenderMan to render their in-house 3D animated movie productions and it is also available as a commercial product licensed to third parties. In 2015, a free non-commercial version of RenderMan became available.


Name

To speed up rendering, Pixar engineers performed experiments with parallel rendering computers using
Transputer The transputer is a series of pioneering microprocessors from the 1980s, intended for parallel computing. To support this, each transputer had its own integrated memory and serial communication links to exchange data with other transputers. T ...
chips inside a
Pixar Image Computer The Pixar Image Computer is a graphics computer originally developed by the Graphics Group, the computer division of Lucasfilm, which was later renamed Pixar. Aimed at commercial and scientific high-end visualization markets, such as medicine, ...
. The name comes from the nickname of a small circuit board (2.5 × 5 inches or 6.4 × 13 cm) containing one Transputer that engineer Jeff Mock could put in his pocket. During that time the
Sony , commonly stylized as SONY, is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan. As a major technology company, it operates as one of the world's largest manufacturers of consumer and professional ...
Walkman Walkman, stylised as , is a brand of portable audio players manufactured and marketed by Japanese technology company Sony since 1979. The original Walkman was a portable cassette player and its popularity made "walkman" an unofficial term for p ...
was very popular and Jeff Mock called his portable board Renderman, leading to the software name.


Technology

RenderMan defines cameras, geometry, materials, and lights using the
RenderMan Interface Specification The RenderMan Interface Specification, or RISpec in short, is an open API developed by Pixar Animation Studios to describe three-dimensional scenes and turn them into digital photorealistic images. It includes the RenderMan Shading Language. ...
. This specification facilitates communication between 3D modeling and animation applications and the render engine that generates the final high quality images. In the past RenderMan used the Reyes Rendering Architecture. The Renderman standard was first presented at 1993
SIGGRAPH SIGGRAPH (Special Interest Group on Computer Graphics and Interactive Techniques) is an annual conference on computer graphics (CG) organized by the ACM SIGGRAPH, starting in 1974. The main conference is held in North America; SIGGRAPH Asia ...
, developed with input from 19 companies and 6 or 7 big partners, with
Pat Hanrahan Patrick M. Hanrahan (born 1954) is an American computer graphics researcher, the Canon USA Professor of Computer Science and Electrical Engineering in the Computer Graphics Laboratory at Stanford University. His research focuses on rendering ...
taking a leading role. Ed Catmull said no software product met the RenderMan Standard in 1993. RenderMan met it after about two years. Additionally RenderMan supports
Open Shading Language Open Shading Language (OSL) is a shading language developed by Sony Pictures Imageworks for use in its Arnold Renderer. It is also supported by Illumination Research's 3Delight renderer, Otoy's Octane Render, V-Ray 3, Redshift (from April 202 ...
to define textural patterns. When Pixar started development,
Steve Jobs Steven Paul Jobs (February 24, 1955 – October 5, 2011) was an American entrepreneur, industrial designer, media proprietor, and investor. He was the co-founder, chairman, and CEO of Apple; the chairman and majority shareholder of Pixar; ...
described the original goal for RenderMan in 1991: During this time, Pixar used the
C language C (''pronounced like the letter c'') is a general-purpose computer programming language. It was created in the 1970s by Dennis Ritchie, and remains very widely used and influential. By design, C's features cleanly reflect the capabilities ...
for developing Renderman, which allowed them to port it to many platforms. Historically, RenderMan used the Reyes algorithm to render images with added support for advanced effects such as ray tracing and
global illumination Global illumination (GI), or indirect illumination, is a group of algorithms used in 3D computer graphics that are meant to add more realistic lighting to 3D scenes. Such algorithms take into account not only the light that comes directly from ...
. Support for Reyes rendering and the
RenderMan Shading Language Renderman Shading Language (abbreviated RSL) is a component of the RenderMan Interface Specification, and is used to define shaders. The language syntax is C-like. A shader written in RSL can be used without changes on any RenderMan-compliant ren ...
were removed from RenderMan in 2016. RenderMan currently uses
Monte Carlo Monte Carlo (; ; french: Monte-Carlo , or colloquially ''Monte-Carl'' ; lij, Munte Carlu ; ) is officially an administrative area of the Principality of Monaco, specifically the ward of Monte Carlo/Spélugues, where the Monte Carlo Casino is ...
path tracing to generate images.


Awards

RenderMan has been used to create digital
visual effects Visual effects (sometimes abbreviated VFX) is the process by which imagery is created or manipulated outside the context of a live-action shot in filmmaking and video production. The integration of live-action footage and other live-action foota ...
for
Hollywood Hollywood usually refers to: * Hollywood, Los Angeles, a neighborhood in California * Hollywood, a metonym for the cinema of the United States Hollywood may also refer to: Places United States * Hollywood District (disambiguation) * Hollywoo ...
blockbuster movies such as ''
Beauty and the Beast ''Beauty and the Beast'' (french: La Belle et la Bête) is a fairy tale written by French novelist Gabrielle-Suzanne Barbot de Villeneuve and published in 1740 in ''La Jeune Américaine et les contes marins'' (''The Young American and Marine ...
'', ''
Aladdin Aladdin ( ; ar, علاء الدين, ', , ATU 561, ‘Aladdin') is a Middle-Eastern folk tale. It is one of the best-known tales associated with ''The Book of One Thousand and One Nights'' (''The Arabian Nights''), despite not being part o ...
'', ''
The Lion King ''The Lion King'' is a 1994 American animated musical drama film produced by Walt Disney Feature Animation and released by Walt Disney Pictures. The 32nd Disney animated feature film and the fifth produced during the Disney Renaissance ...
'', '' Terminator 2: Judgment Day'', ''
Toy Story ''Toy Story'' is a 1995 American computer-animated comedy film directed by John Lasseter (in his feature directorial debut), produced by Pixar Animation Studios and released by Walt Disney Pictures. The first installment in the '' Toy Story ...
'', ''
Jurassic Park ''Jurassic Park'', later also referred to as ''Jurassic World'', is an American science fiction media franchise created by Michael Crichton and centered on a disastrous attempt to create a theme park of cloned dinosaurs. It began in 1990 when ...
'', ''
Avatar Avatar (, ; ), is a concept within Hinduism that in Sanskrit literally means "descent". It signifies the material appearance or incarnation of a powerful deity, goddess or spirit on Earth. The relative verb to "alight, to make one's appear ...
'', ''
Titanic RMS ''Titanic'' was a British passenger liner, operated by the White Star Line, which sank in the North Atlantic Ocean on 15 April 1912 after striking an iceberg during her maiden voyage from Southampton, England, to New York City, Unite ...
'', the ''
Star Wars ''Star Wars'' is an American epic space opera multimedia franchise created by George Lucas, which began with the eponymous 1977 film and quickly became a worldwide pop-culture phenomenon. The franchise has been expanded into various film ...
'' prequels, and ''
The Lord of the Rings ''The Lord of the Rings'' is an epic high-fantasy novel by English author and scholar J. R. R. Tolkien. Set in Middle-earth, intended to be Earth at some time in the distant past, the story began as a sequel to Tolkien's 1937 children's bo ...
''. RenderMan has received four
Academy Scientific and Technical Award The Scientific and Technical Awards are three different Honorary Awards that are given by the Academy of Motion Picture Arts and Sciences (AMPAS) during the annual Academy Awards season. The Awards have been presented since the 4th Academy Awards ...
s. The first was in 1993 honoring
Pat Hanrahan Patrick M. Hanrahan (born 1954) is an American computer graphics researcher, the Canon USA Professor of Computer Science and Electrical Engineering in the Computer Graphics Laboratory at Stanford University. His research focuses on rendering ...
, Anthony A. Apodaca,
Loren Carpenter Loren C. Carpenter (born February 7, 1947) is a computer graphics researcher and developer. Biography He was a co-founder and chief scientist of Pixar Animation Studios. He is the co-inventor of the Reyes rendering algorithm and is one of the ...
, Rob Cook, Ed Catmull, Darwyn Peachey, and Tom Porter. The second was as part of the 73rd Scientific and Technical Academy Awards ceremony presentation on March 3, 2001: the
Academy of Motion Picture Arts and Sciences The Academy of Motion Picture Arts and Sciences (AMPAS, often pronounced ; also known as simply the Academy or the Motion Picture Academy) is a professional honorary organization with the stated goal of advancing the arts and sciences of motion ...
' Board of Governors honored Ed Catmull,
Loren Carpenter Loren C. Carpenter (born February 7, 1947) is a computer graphics researcher and developer. Biography He was a co-founder and chief scientist of Pixar Animation Studios. He is the co-inventor of the Reyes rendering algorithm and is one of the ...
and Rob Cook with an
Academy Award of Merit The Academy Awards, better known as the Oscars, are awards for artistic and technical merit for the American and international film industry. The awards are regarded by many as the most prestigious, significant awards in the entertainment ind ...
"for significant advancements to the field of motion picture rendering as exemplified in Pixar’s RenderMan". The third was in 2010 honoring "Per Christensen, Christophe Hery, and Michael Bunnell for the development of point-based rendering for indirect illumination and ambient occlusion." The fourth was in 2011 honoring David Laur. It has also won the Gordon E. Sawyer Award in 2009 and The Coons Award. It is the first software product awarded an Oscar.''And the Oscar goes to...''
IEEE Spectrum, 2 April 2001.


See also

*
List of 3D rendering software This page provides a list of 3D rendering software. This is not the same as 3D modeling software, which involves the creation of 3D models, for which the software listed below can produce realistically rendered visualisations. Also not included are ...


References


External links

* {{3D software 3D computer graphics software for Linux 3D graphics software IRIX software Pixar Proprietary commercial software for Linux Rendering systems RenderMan 3D rendering software for Linux