布料上污渍效果的真实感模拟  

Realistic Simulation of Stains on Cloth

作　　者：刘世光[1] 陈国军[1] 杨鹏[1] 张加万[1] 孙济洲[1] 

机构地区：[1]天津大学计算机科学与技术学院

出　　处：《计算机辅助设计与图形学学报》2008年第9期1110-1116,共7页Journal of Computer-Aided Design & Computer Graphics

基　　金：国家“九七三”重点基础研究发展规划项目(2002CB31201);中国科学院软件研究所计算机科学国家重点实验室开放课题基金(SYSKF0803)

摘　　要：布料上的污渍效果是计算机游戏和影视制作中有待模拟的细节之一.提出一种基于物理的布料上污渍效果的真实感模拟的方法——采用多层模型对布料进行建模.对于污渍在布料上的渗透和扩散运动,提出了NSEAM(Navier-Stokes equations for anisotropic edia)模型,它可以模拟污渍和布料之间的相互作用,如扩散作用、蒸发作用、渗透作用等.最后,采用硬件加速的方法对上述过程进行了真实感绘制.实验结果表明,文中方法可以生成不同结构的布料上较为逼真的污渍效果,其绘制效果令人满意.Although many works have been done on fluid simulation, little attention has been paid to the staining effect on cloth. In this paper, we present a novel method for realistic simulation of stain effects on cloth, including diffusion of stain on cloth, as well as evaporation, deposition, adsorption, etc. We introduce a new model called NSEAM （Navier-Stokes equations for anisotropic media） to represent the movement of stain. To simulate the anisotropic texture of cloth, we adopt a multi-layer model. With our method, the interaction between stain and different types of cloth can be realistically simulated in real-time. Experimental results validate our simulation model.

关 键 词：计算机图形学 各向异性Navier-Stokes方程组 污渍 布料 真实感 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]