| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent a rendering processing load from increasing, and to express a shadow with reality in displaying a shadow of a desired object. <P>SOLUTION: A first position coordinate calculation part 3401a calculates position coordinates of each heel of a dancer 802 in selecting a "dance presentation pattern". A second position coordinate calculation part 3401b calculates a plurality of position coordinates on a stage 801 which are determined by each of the plurality of position coordinates calculated by the first position coordinate calculation part 3401a. Based on the plurality of the position coordinates calculated by the second position coordinate calculation part 3401b and the distance L between the heel of the dancer 802 and the stage 801, a quadrangular region 1007 is determined on the stage 801, and a region 1008 surrounded by a continuous closed curve that falls within the quadrangular region 1007 is determined as a region where a shadow 803 of the dancer 802 is displayed. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
