| 摘要 |
PROBLEM TO BE SOLVED: To perform a semitransparent processing of high quality with a small hardware scale and less processing burden by invalidating at least the semitransparent control based on second semitransparent information with respect to parts judged to be not transparent by first semitransparent information out of individual pats of a display object. SOLUTION: The semitransparent control based on second semitransparent information OPm is invalidated with respect to a first part 22 judged to be not transparent by first semitransparent information OPt . Therefore, the semitransparent control based on information OPm doesn't act on the first part 22, and only a second part 24 is subjected to the semitransparent control with the first part 22 kept opaque. The opacity of the first part 22 can be changed behind the opacity change of the second part 24. It is preferable that the semitransparent control based on semitransparent information OPm for the first part 22 is not always invalidated and the invalidating mode and the validating mode can be switched. |
