| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To achieve various large and small presentation while restraining the control load for performing variable display of identification information. <P>SOLUTION: A wire frame model of a drum is stored in a wire frame memory 139, and a continuous video in accelerating a cylindrical drum where a special pattern is drawn, a continuous video in rotating at a fixed speed, and a continuous video in deceleration are stored in a special video ROM 140. In variable display of identification information, a VDP 136 synthesizes wire frame models of the drum in a virtual space, and videos read out from the special pattern video ROM 140 are sequentially mapped thereon, thereby synthesizing the images in the rotating state of the drum without largely rotating a polygon. The drum on which the video is mapped is projected on a virtual display screen to obtain an image, and the obtained image is created while the positions of the virtual visual point and the virtual display screen are varied, and displayed on a display device through an LCD driving circuit 141. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
