To provide a technique with which 3D images can be drawn more realistic. The present invention provides an image processing system including a DDA section that generates drawing information for each pixel according to a display list which includes information about the position and color of each vertex of a polygon in a virtual 3D space, a point-of-view distance calculation section for calculating the distance from a predetermined point in the virtual 3D space, an adjusting section for adjusting the drawing information by updating the information which indicates the color of each pixel, based on the distance calculated by the point-of-view distance calculation section, and a frame memory interface section that produces the adjusted drawing information to a predetermined frame memory. Thus, visual effects are produced for the polygon based on the distance.