| 摘要 |
<P>PROBLEM TO BE SOLVED: To more effectively express the trajectory of the like of a bullet heading for a virtual space from an operator side in an image displaying device for a game or the like which adopts a first person view. <P>SOLUTION: When a two-dimensional image is formed by projecting the inside of the virtual space on a specified projection surface (S), first, a relative position of an operating means and a relative direction which is designated by the operating means are acquired, and they are substituted for a position (M) and a direction in the virtual space. Then, a starting point (N) is set by sliding the position of the operating means in the virtual space in the horizontal and/or vertical directions by a specified amount. At the same time, a final point (Q) is set on a virtual line (L1) which extends in a direction designated by the operating means in the virtual space. Then, a virtual viewpoint (M) which is approximately adjusted to the position and the direction of the operating means in the virtual space is set, and a projection conversion is performed. Then, the two-dimensional image including the trajectory image corresponding to a part or all of a section (K) which connects the starting point and the final point is formed. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
