| 摘要 |
When a viewpoint moves in a game space, the movement of the viewpoint is reflected in a game screen image to thereby improve the realism. A game machine for producing a screen image on a real time basis, the screen image showing a picture obtained by viewing from a predetermined viewpoint defined in a game space in a predetermined viewing direction, and displaying the screen image on a real time basis comprises a viewpoint moving unit (64) for moving a position of the viewpoint in the game space, an oscillation parameter update unit (60) for changing a predetermined oscillation parameter according to movement of the viewpoint in the game space, and an oscillating unit (68) for oscillating the position of the viewpoint or the viewing direction in the game space according to the predetermined oscillation parameter.
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