A SIMPLE SELF-COLLISION AVOIDANCE FOR CLOTH ANIMATION

This paper discusses the self-collision avoidance problem in simulatin g the dynamic behavior of deformable cloth. It is not an easy task to simulate realistically the response of cloth in various types of compl icated self-collisions. In this paper, the bounding box technique in a ddition to ordinary pre-checking for collision detection is used to av oid self-collision. Instead of avoiding self-collision of cloth triang les, we relax to avoid the collision of the bounding boxes of cloth tr iangles. Some constraints are enforced on the vertices of the cloth tr iangles to prevent their bounding boxes from penetrating in the direct ion of collision. The experimental results show that the relaxed self- collision avoidance method can create realistic cloth behavior and wri nkling formation processes. Since the types of interaction between bou nding boxes are simple, our method is simple but robust in avoiding se lf-collisions. (C) 1998 Elsevier Science Ltd. All rights reserved.