An image processing unit includes a shape memory in which object shape data are prerecorded, a processing component which establishes coordinate values for objects in a three-dimensional virtual space based on the shape data in the shape memory, a conversion component which receives the coordinate values from the processing component and converts the coordinate values to a visual field coordinate system based on a prescribed view point, a view point establishment component which establishes a position of the view point based on the situation between an object in the three-dimensional virtual space serving as a predetermined reference and being virtually defined in the three-dimensional virtual space without any input by a user, and which sends the position to the conversion component, and an imaging component which adds a predetermined texture to a shape data of the visual field coordinate system converted by the conversion component.