1. A computer readable recording medium storing a 3-D image processing program, which intentionally distorts an original image to generate a deformed image on a display screen, said 3-D image processing program comprising the steps of: storing an original image and a 3-D model comprising a plurality of polygons and having a shape in which at least a portion of a plane is distorted in 3-D space; performing image pasting processing, in which the original image is read and is pasted, as a texture, onto said 3-D model; and performing deformed image drawing processing, in which a deformed image, which is an image of said 3-D model onto which the original image has been pasted, as seen from a prescribed camera viewpoint, is drawn on a display screen.