| 摘要 |
<p>The present invention relates to a computer graphic process, and has as its object to make it possible to perform high-speed processing when a three-dimensional thing is perspective-transformed on a two-dimensional screen. An apparatus for performing perspective transformation according to the present invention is an apparatus for perspective transforming a thing placed in a three-dimensional space on a virtual two-dimensional screen. The apparatus has a device in which when a plurality of things exist in the same scene, and when the coordinate values of a plurality of points for specifying the things are localized with respect to a certain direction in units of things, by using the coordinate values of typical points selected in units of things, perspective transformation of other points for specifying the things is approximated.</p> |
