| 摘要 |
Trace shape information, representing the shape of a trace along which an object has moved across a game field in a virtual game world is updated based on the change in the position where the object is located in the virtual game world. A ground texture is produced by blending together an image of the game field in the virtual game world with the trace and that without the trace based on the trace shape information. The game field in the virtual game world is rendered by using the ground texture. Then, the virtual game world, in which the object has been placed, is displayed on a display device.
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