While computer-assisted animation is a highly valuable and interesting process, computer modeled animation is even more fascinating. Here the computer becomes more than a support, playing a basic role in the creation of a three-dimensional world. Man, in fact, has always found it difficult to represent three-dimensional space in drawings; few people can draw in true perspective. Furthermore, it is simply impossible to produce all the tens of thousands of drawings needed for an animated film by hand. In this sense, the computer is not replacing man, since it does jobs which simply cannot be performed manually Modeled animation has been used in television advertisements (Crow, 1978) and for special effects in films like 2001 A Space Odyssey, Return of Jedi and especially TRON Three-dimensional computer animation involves three main activities.
KeywordsSurface Patch Algebraic Surface Angle Alpha Computer Animation graphIcal Type
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