This program product causes a computer to function as the respective units for (a) arranging a model configured by intersecting a plurality of plate-shaped polygons in a virtual space, (b) calculating a parameter dependent on an angle formed from a first vector set in association with the model and a second vector set in association with the line of sight of the virtual camera, (c) selecting as a display target one among the plurality of plate-shaped polygons configuring the model according to the parameter, (d) mapping a prescribed texture to the plate shaped polygon selected with the polygon selection unit, and (e) generating an image obtained by performing perspective projection to the inside of the virtual space, in which the model mapped with the texture is arranged, on a perspective projection plane set in correspondence with a visual point of the virtual camera.