| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an image generation system capable of preventing the omission of representation by implementing polygonal scissoring processing with a small processing burden, and an information storage medium thereof. <P>SOLUTION: The image generation system establishes a plurality of regions for position determination by dividing a predetermined region or its surrounding space, decides on which region each apex of the primitive belongs to, and establishes scissoring information for specifying which region for position determination the apex belongs to, as the apex information associated with the apex. A scissoring processing part decides on whether there is an apex outside the predetermined region among the apexes in the unit of smallest unit polygons composing the primitive based on the scissoring information, implements scissoring processing to the smallest unit polygons having apexes outside the predetermined region, and omits scissoring processing to the smallest unit polygons having no apexes outside the predetermined region. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
