Patent 7742047 was granted and assigned to Sega on June, 2010 by the United States Patent and Trademark Office.
By means of an image drawing program stored in a storage medium readable by an image processing system, the corresponding image processing system and the corresponding image drawing method, shadows are drawn for a plurality of characters, without imposing a large load on the processor, by referencing a shadow created in advance, and using the shadow for other characters to draw numerous humanoid shadows for display on one screen.