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Encyclopedia > Compositing

In visual effects post-production, compositing refers to creating new images or moving images by combining images from different sources – such as real-world digital video, film, synthetic 3-D imagery, 2-D animations, painted backdrops, digital still photographs, and text. Visual effects is the term given to a sub-category of special effects in which images or frames of a movie, are created, recorded, or manipulated for film and video. ... Digital video is a type of video recording system that works by using a digital, rather than analog, representation of the video signal. ... The rewrite of this article is being devised at Talk:3D computer graphics/Temp. ... Animation is the filming a sequence of drawings or positions of models to create an illusion of movement. ... Theatrical scenery Filming location This is a disambiguation page: a list of articles associated with the same title. ... It has been suggested that Archival digital print be merged into this article or section. ... The term text has multiple meanings depending on the context of its use: In language, text is a broad term for something that contains words to express something. ...


Compositing techniques, while almost exclusively digital today, can be achieved by many means. On-set in-camera effects have been utilized since the advent of film such as in the 1902 Voyage to the Moon. Optical compositing is the often complex process that requires a optical printer to photographically composite the elements of multiple images onto a single filmstrip. However, since the 1990s, digital techniques have almost completely replaced what was once the only method of post-production compositing. A digital system is one that uses discrete numbers, especially binary numbers, or non-numeric symbols such as letters or icons, for input, processing, transmission, storage, or display, rather than a continuous spectrum of values (an analog system). ... An in-camera effect is any special effect in a video or movie that is created solely by using techniques in and on the camera and/or its parts. ... Le Voyage dans la lune is a 1902 French science fiction black and white silent film known in its English language release as A Trip to the Moon. ... An optical printer with two projector heads, used in producing movie special effects. ... Filmstrips were an early form of documentary multimedia shown in primary school. ... Digital compositing is the process of assembling multiple images to make a final image, typically for print, motion pictures or screen display. ... Post production is the general term for the last stage of film production in which photographed scenes (also called footage) are put together into a complete film. ...


Compositing is used extensively in modern film and television to achieve effects that otherwise would be impossible or not cost efficient. One common use for compositing is scene or set extension which enables filmmakers to shoot on a relatively small set and create the impression of a significantly different location by adding additional surrounding and foreground imagery. A common tool to help facilitate composites is the bluescreen a backdrop of a uniformly solid color -- usually blue or green -- that is placed behind an actor or object. During compositing, all areas of a frame with that color are removed and replaced, allowing the compositor place the isolated image of the actor or object in front of a separately shot or synthetic background. Mattes are used in photography and filmmaking to insert part of a foreground image onto a background image, which is often a matte painting, a background filmed by the second unit, or computer generated imagery. ... The film director, on the right, gives last minute direction to the cast and crew, whilst filming a costume drama on location in London. ... In mathematics, a set can be thought of as any collection of distinct things considered as a whole. ... The bluescreen setup The final image Bluescreen (known in television as chroma key) is a term for the filmmaking technique of shooting foreground action against an evenly-lit monochomatic background for the purpose of removing the background from the scene and replacing it with a different image or scene. ... In film, video production, animation, and related fields, a frame is one of the many still images which compose the complete moving picture. ...


In feature film, movies are generally shot on 35mm film. For modern compositing, the film has to be digitized with a film scanner. It is then transferred to a computer where it can be edited. The compositors gather all the separately shot images and, with a compositing platform or software, combine elements of each image to achieve a resultant shot. As a result, a single frame of the finished shot may contain from anywhere between two to many hundreds of images from footage shot months or even years apart. Digitized is a method of creating sprites to games using live video footage. ...


Professional Compositing Software

Shake is an image compositing package used in the post-production industry. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Autodesk Media and Entertainment, formerly Discreet , is based in Montreal, Quebec as the entertainment division of Autodesk Inc. ... Adobe After Effects is a digital motion graphics and compositing software developed by Adobe Systems. ... Blender is a free program used for modelling and rendering three-dimensional graphics and animations. ... Commotion was originally released by Puffin Designs. ... Motion is a software application produced by Apple Computer for their Mac OS X operating system. ... Fusion (formerly Digital Fusion) is a full-featured, node-based compositing system created by eyeon Software Inc. ... Nuke is the Academy Award-winning compositing software used by Digital Domain. ... Industrial Light + Magic is a motion picture special visual effects company, founded in July 1975 by George Lucas. ... The Saber (spanish/portuguese: knowledge) currency is an educational sectoral currency in Brazil that is handed out by the ministry of education. ...

See also

Digital compositing is the process of assembling multiple images to make a final image, typically for print, motion pictures or screen display. ... In computer graphics, alpha compositing is often useful to render image elements in separate passes, and then combine the resulting multiple 2D images into a single, final image in a process called compositing. ... A compositing manager is a computer process that handles compositing. ...

Further reading

  • T. Porter and T. Duff, "Compositing Digital Images", Proceedings of SIGGRAPH '84, 18 (1984).
  • Ron Brinkmann, The Art and Science of Digital Compositing (ISBN 0-12-133960-2)
  • Steve Wright, Digital Compositing for Film and Video, Second Edition (ISBN 0-240-80760-X)

  Results from FactBites:
 
ArtLex on Composition (201 words)
It is often useful to discuss these in reference to the principles of design, as well as to the relative weight of the composition's parts.
When a composition is limited to a distinct area of a plate or a sheet of paper, it is good practice to note the composition's measurements, as well as the measurements of the plate and of the overall sheet.
The design of a composition should either be pleasing or it should be in some other way expressive.
Atmospheric Composition (911 words)
The composition of the global atmosphere has an influence on climate and the ozone layer, as well as their relation to air quality, all of which have implications for ecosystem vitality and human health.
Human and ecosystem well-being are related to the composition of the Earth's atmosphere.
CCSP seeks to create a research and observation framework for atmospheric composition that provides information on the interactions among changes in the atmosphere, climate, the environment, and human health (see Figure 1) needed for sound policy decisions.
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