Patent ID: 7742047
Filing Date: 2010-06-22
Classification: A63F,G06T

Abstract:
1. An image drawing program stored in a non-transitory storage medium-readable by an image processing system comprising a drawing processor which generates character image data corresponding to character data read from memory, texture memory which stores textures to be applied to characters, and frame memory to which characters applied with the textures are drawn, the image drawing program executing control to cause the drawing processor to display, on a display screen of the image processing system, an image of a plurality of characters positioned in virtual three-dimensional space in a view from a prescribed viewpoint, and an image resulting from perspective projection onto a two-dimensional plane, the image drawing program executing a process comprising the drawing processor, and forming character image data corresponding to the character data by perspective projection of the plurality of characters from a viewpoint set in virtual three-dimensional space; drawing the character image data formed by the drawing processor in frame memory; when images of shadows to be displayed corresponding to images of characters drawn in the frame memory are drawn, generating the texture of a shadow to be applied corresponding to the shadow of one character within a respective pose category, and storing the texture in the texture memory; and drawing the texture of shadows of the characters to be drawn, which are set to the same pose category as the one character by using the shadow texture, stored in the texture memory and to be applied corresponding to the one character, the drawing processor taking the one character shadow as a shadow of a character, not actually drawn on the screen, which, for a prescribed parameter, matches the conditions of the parameter selected such that the number of characters which can use the one character shadow as a reference shadow is increased.