Patent ID: 6468161
Filing Date: 2002-10-22
Classification: A63F,G06T

Abstract:
A video game device having a frame buffer which includes a first area storing a first image used in a game, and a game image displaying device which displays the first image to a display device, comprising:a game image producing device which produces the first image on the basis of proceedings of the game by combining a two-dimensional image and pseudo three dimensional image; and a game image storing device which stores the first image into the first area, the game image displaying device displays the first image which is produced by the game image producing device and is stored by the game image storing device into the first area, to the display device, wherein the frame buffer further includes a second area in which second images used to produce the first image are stored, and the game producing device replaces change parts of the first image being displayed with the corresponding second images to produce the first image, and wherein each of the second images is partial image subdivided in a predetermined size, and stored into a predetermined location in the second area in consideration of a relationship of an orientation between an image to be stored in the second area and the image to be displayed, and wherein the second images include images representing changes according to passage of time in a part of the first image and thereby the number of times of accessing to the frame buffer is reduced by replacing parts of the first image with the second images one after another.