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RenderMan
The name RenderMan can cause confusion because it has been used to refer to different things developed by Pixar Animation Studios: * RenderMan Interface Specification (RISpec), an open API (technical specification) developed by Pixar for a standard communications protocol (or interface) between 3D computer graphics programs and rendering programs to describe three-dimensional scenes and turn them into digital photorealistic images ** RenderMan Shading Language, a component of the RenderMan Interface Specification used to define shaders * Pixar RenderMan Pixar RenderMan (formerly PhotoRealistic RenderMan) is proprietary photorealistic 3D rendering software produced by Pixar Animation Studios. Pixar uses RenderMan to render their in-house 3D animated movie productions and it is also available as ..., a RenderMan Interface Specification-compliant rendering software system developed by Pixar based on their own interface specification * RenderMan, also commonly used to refer to other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pixar RenderMan
Pixar RenderMan (formerly PhotoRealistic RenderMan) is proprietary photorealistic 3D rendering software produced by Pixar Animation Studios. 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 chips inside a Pixar Image Computer. 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 Walkman 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. This specification facilitates communication between 3D m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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. As Pixar's technical specification for a standard communications protocol (or interface) between modeling programs and rendering programs capable of producing photorealistic-quality images, RISpec is a similar concept to PostScript but for describing 3D scenes rather than 2D page layouts. Thus, modelling programs which understand the RenderMan Interface protocol can send data to rendering software which implements the RenderMan Interface, without caring what rendering algorithms are utilized by the latter. The interface was first published in 1988 (version 3.0) and was designed to be sufficiently future proof to encompass advances in technology for a significant number of years. The current revision is 3.2.1, released in November 2005. Wha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 renderer, such as Pixar's PhotoRealistic RenderMan, DNA Research's 3Delight, Sitexgraphics' Air or an open source solution such as Pixie or Aqsis. RenderMan Shading Language defines standalone functions and five types of shaders: surface, light, volume, imager and displacement shaders. An example of a surface shader that defines a metal surface is: surface metal (float Ka = 1; float Ks = 1; float roughness = 0.1;) Shaders express their work by reading and writing special variables such as Cs (surface color), N (normal at given point), and Ci (final surface color). The arguments to the shaders are global parameters that are attached to objects of the model (so one metal shader can be used for different metals and so on). Shaders have no ret ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pixar
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, California, United States. Since 2006, Pixar has been a subsidiary of Walt Disney Studios, which is another studio owned by The Walt Disney Company. Pixar started in 1979 as part of the Lucasfilm computer division, known as the Graphics Group, before its spin-off as a corporation in 1986, with funding from Apple co-founder Steve Jobs, who became its majority shareholder. Disney purchased Pixar in January 2006 at a valuation of $7.4+ billion by converting each share of Pixar stock to 2.3 shares of Disney stock. Pixar is best known for its feature films, technologically powered by RenderMan, the company's own implementation of the industry-standard RenderMan Interface Specification image-rendering API. The studio's mascot is Luxo Jr., a desk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Application Programming Interface
An application programming interface (API) is a way for two or more computer programs to communicate with each other. It is a type of software interface, offering a service to other pieces of software. A document or standard that describes how to build or use such a connection or interface is called an ''API specification''. A computer system that meets this standard is said to ''implement'' or ''expose'' an API. The term API may refer either to the specification or to the implementation. In contrast to a user interface, which connects a computer to a person, an application programming interface connects computers or pieces of software to each other. It is not intended to be used directly by a person (the end user) other than a computer programmer who is incorporating it into the software. An API is often made up of different parts which act as tools or services that are available to the programmer. A program or a programmer that uses one of these parts is said to ''call'' that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photorealism
Photorealism is a genre of art that encompasses painting, drawing and other graphic media, in which an artist studies a photograph and then attempts to reproduce the image as realistically as possible in another medium. Although the term can be used broadly to describe artworks in many different media, it is also used to refer specifically to a group of paintings and painters of the American art movement that began in the late 1960s and early 1970s. History Origins As a full-fledged art movement, Photorealism evolved from Pop ArtLindey (1980), pp. 27–33.Meisel and Chase (2002), pp. 14–15. Nochlin, Linda, "The Realist Criminal and the Abstract Law II", ''Art In America.'' 61 (November–December 1973), p. 98. and as a counter to Abstract Expressionism as well as Minimalist art movementsBattock, Gregory. Preface to Meisel, Louis K. (1980), ''Photorealism''. New York:Abrams. pp. 8–10 in the late 1960s and early 1970s in the United States. Photorealists use a photograph o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
