Patent ID: 6972766

Claim:
A recording medium which stores a dynamic picture image generation program for generating dynamic picture image in which the surface of a model, comprising a plurality of polygons and a plurality of skeletons, said skeletons comprising a plurality of skeletal links, said polygons and skeletal links specifying the display positions of each polygon, undulates irregularly, said program causes a computer to function as: vertex coordinate storage means for storing the coordinates of the vertices comprised by each polygon; connectedness storage means for storing connectedness, which is the degree of connection of the vertices comprised by each polygon to each skeletal link, wherein one or more of said vertices connects to a plurality of said skeletal links; reference movement amount storage means, set for each skeletal link, for storing the amount of reference movement which is the maximum amount of movement of a vertex connected only to the skeletal link; movement amount computation means for computing the amount of movement of a vertex based on said connectedness and said reference movement amounts; direction computation means for computing the movement direction for vertices comprised by each polygon; and, coordinate computation means for computing the coordinates of vertices after a prescribed amount of time from said vertex coordinates, said movement amounts, and said movement directions.