| 摘要 |
PROBLEM TO BE SOLVED: To achieve image processing, such as a blur without providing a work memory in an image processor of a sprite system.SOLUTION: Pre-linking is performed with a vertically long image of the double image size of a sprite of a display object as an absolute sprite, with only α data of the sprite as a first relative sprite, and with only the same color data as a second relative sprite. A storage area for arranging the absolute sprite is secured in a sprite buffer to arrange the absolute sprite, the first relative sprite is arranged in the first half of the storage area, and then, the second relative sprite is arranged in the latter half. Then, filter processing is performed to an area where writing is recently performed, write processing is repeated in the other area as many as the predetermined number of times, and image data of an area where writing is performed last is drawn in a frame buffer, thereby achieving a blur. |
