| 摘要 |
A method of using parametrical representations in modeling and animation is disclosed. This method is built directly on the inherent properties of parametric curves. Parametric curves are constructed and associated with geometric models, while at the same time the properties are used to represent the underlying mechanism of deformation. This method includes the steps of building parametrical representations on a geometric model, associating vertices of the model with different ones of the parametrical representations to effect movement thereof, and animating movement of the vertices to simulate relative motion therebetween. The invention discloses a method in which simulation of object interaction and object deformation can be integrated into a unified framework through skeletal trees. The method preprocesses a graphic object and segments the object into a number of contexts at surface slope and curvature discontinuities. Then, control points are generated to represent these contexts. Based on these control points, a skeletal tree of the object can be built. Assisted by spatial decomposition, the skeletal trees can be directly used in the simulation of object interaction.
|
