摘要 |
A light sphere and a flare appearing therearound are easily and realistically displayed on a display screen. A plurality of disks (230A, 230B, 230C), each comprising a substantially circular central portion which is brighter and a substantially ring-shaped portion disposed around the substantially circular central portion and having a brightness lower than the substantially circular central portion, are placed at different angles in a three-dimensional space, and rotated at different speeds about the centers thereof at an origin (O).
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