In a simulation game machine for play on the basis of images of three-dimensionally constituted terrain features and characters which are represented as if viewed from a prescribed camera within a virtual space, allows the viewing point to be shifted in three dimensions while looking over a stage, thereby...http://www.google.com/patents/US6500069?utm_source=gb-gplus-sharePatent US6500069 - Image processor, image processing method, game machine and recording medium
