一种快速的基于物理模型的织物模拟  

A Quick Cloth Simulation Based on Physical Modeling

作　　者：宁松[1] 林木华[1] 刘郊[1] 

机构地区：[1]四川大学计算机学院,四川成都610065

出　　处：《计算机仿真》2006年第12期118-121,共4页Computer Simulation

摘　　要：提出了一种基于物理模型的实时动态模拟织物的方法。模拟织物的运动一直都是虚拟仿真的重要课题,在电影、游戏和虚拟现实中大量用到,但是逼真的模拟往往需要高昂的计算代价。文章通过对织物物理和几何属性分析,构造出一个带约束的物理模型,使用一种自适应的迭代法,最大限度地利用了局部时间和空间上的模拟参数,大大提高了计算的效率。并根据织物的物理特性,优化共轭梯度法,综合各种算法的优点,不断优化算法,可以实时地并且精确地模拟织物的运动。This article presents a real - time rendering cloth simulation based on physical modeling, Simulating the motion of cloth is an important part in virtual animation. Believable animations are now expected in films, games and virtual reality. But the computational costs are still high. By analyzing the physical and geometric properties of the model, a physical model with restrictions is built. And by using an adaptive time integration, it takes good advantage of simulation parameters locally in both space and time, and improves the efficiency of the computation. This article also uses modified conjugate gradient technique and simplified computing method according to the physical properties of the cloth, optimized arithmetic, so it can simulate the motion of cloth in real - time and exactly.

关 键 词：基于物理模型 织物模拟 动画 虚拟仿真 碰撞检测 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]