GAME SYSTEM AND INFORMATION STORAGE MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a game system which can perform an image expression to gradually and partly deform an object and also to provide an information storage medium. SOLUTION: Time processing data TS (TE, TC) designating the start time of time processing, etc., and attribute data (colors, texture coordinates, positions) are set at each vertex (definition point) of an object OB. Then the time processing using a time parameter (t) is carried out in accordance with the time processing data TS and the attribute data to generate an image of the OB. The time processing is carried out by means of a function F (t), e.g. (t-TS)/TC defining the parameter (t) and the data TS as a variable and a constant, respectively. The image of the OB is partly changed with lapse of time by means of the image data (colors, texture coordinates) included in the attribute data, and the shape of the OB is partly deformed with lapse of time by means of the vertex position data included in the attribute data. Meanwhile, the positional data set included in the attribute data is interpolated according to the parameter (t) and data TS to attain the morphing.