| 摘要 |
A technique for expressing an elastic body using computer graphics. The elastic body is expressed by transforming coordinates of shape specific points which specify the shape of an object, using a transformation matrix. Each element of the transformation matrix is expressed by a function having a time as a variable which converges to a corresponding element of a matrix that represents the motion of the object when the object is assumed to be a rigid body. By substituting a predetermined time into this function, a value of each element of the transformation matrix is determined. The shape of the object is determined based on the coordinate values of the shape specific points after coordinate transformation. |
