虚拟环境中织物的碰撞检测及响应  

Collision Detection and Response of Dynamic Cloth Simulation in Virtual Environment

作　　者：刘智斌[1] 李占利[2] 曹宝香[1] 

机构地区：[1]曲阜师范大学计算机科学学院,山东日照276826 [2]西安科技大学计算机科学与技术系,陕西西安710054

出　　处：《系统仿真学报》2007年第7期1497-1499,1578,共4页Journal of System Simulation

基　　金：山东省自然科学基金资助项目(Y2003G01)

摘　　要：在织物动感模拟中,碰撞检测及响应处理非常复杂,实时性和真实感难以达到。为此采用质点—弹簧模型进行建模,基于层次包围盒,设计出碰撞检测算法,在此基础上,提出自碰撞检测算法。同时,提出一种检测基本几何单元间碰撞的方法,快速检测出质点与三角形的交点。然后,依据织物的物理特性进行碰撞响应处理。实验表明,算法提高了实时性,并实现了较强的真实感。Due to collision detection and response is very time-consuming, the real-time and lively effect was difficult to achieve in dynamic cloth animation. The mass-spring model for dynamic cloth was adopted, and then based on bounding boxes hierarchy, a collision detection algorithm was given and an algorithm converted self-collision detection was proposed into collision detection. In order to enhance the collision detection speed of basic geometrical units, an improved method was proposed to detect the intersection of mass and triangle accurately, and then a collision response process was described according to mechanics principle. Experiment results show that those approaches improve real-time and vivid effect.

关 键 词：织物模拟 碰撞检测 碰撞响应 质点-弹簧模型 OPENGL 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]