The Study On Simulating Flexible Object Based On Physical Techniques

The study on the simulation of flexible object is an important and foreland field in computer graphics in recent years. Because of its analogous attributes but labile state, flexible object is widely applied to Cloth CAD/CAM, Computer Graphics and Virtual Reality. For the study on flexible object is usually limited by its complicated characteristic and the support of computer hardware and software, the standard model and algorithm haven,been worked out so far. Generally, the methods of simulating flexible object are based on geometrical, physical and hybrid techniques. Since adopting physical technique cannot only embody the appearance but also analyze the inner structure of flexible object, and obtain satisfactory results, it becomes the main stream in the study field gradually. Firstly, this paper researches the basic problems of flexible object, and then expounds an effective model of flexible object: particle──spring system, via delving the Computer Graphics, Limited Element and Dynamics of Rigid Object. Using physical techniques, this model analyzes its external and internal forces, then integrates them with its accumulators,velocities and displacements. Secondly, an algorithm of the model is presented and implemented on microcomputer. Finally, the simulating results are analyzed. After the above studying, the author's opinions are given about the challenge problems of simulating flexible object in this paper, such as collision and self- collision detecting, friction and seaming cloth etc. Additionally, according to the conferences and the author's experience, the research direction and future are predicted on simulating flexible object at the end of this paper.