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Computer graphics has become pervasive in visual media and is the core technology in video games, whose revenues are now higher than ticket sales for movies. Movies wholly generated using computer graphics appear with regularity, and movies commonly have backgrounds or characters created using computer graphics. Print and broadcast media have been similarly affected, and computer graphics virtual worlds are becoming commonplace on the World Wide Web. Because the product of computer graphics systems is intended to be viewed by people, it is important to understand computer graphics in a perceptual context. Although perception of computer graphics is similar to that of photography, film, and the graphical arts, important aspects of image creation and display are unique to computer graphics and must be understood to ...

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