一种基于物理模型的布料湿润效果真实感模拟方法  

Realistic Simulation of the Wetting Effect on Cloth Based on Physical Modeling

作　　者：邹北骥[1] 黄銮[1] 王磊[1] 梁毅雄[1] 

机构地区：[1]中南大学信息科学与工程学院,湖南长沙410083

出　　处：《计算机工程与科学》2010年第4期42-44,100,共4页Computer Engineering & Science

基　　金：国家自然科学基金资助项目(60673093);国家自然科学基金重大研究计划资助项目(90715043)

摘　　要：通过分析布料和流体之间的相互作用与关系,本文提出了一种新的基于多孔粒子模型的布料湿润效果真实感模拟方法。该模型可以看作是一种改进的弹簧质点模型,借鉴粒子模型的一些基本概念,模型中采用了多孔粒子这一结构。该结构中的孔隙可以作为流体在布料中的存储空间,由于相邻多孔粒子中流体存储量不同,形成的毛细压强差推动流体在所有粒子中流动。同时,该模型按照达西渗流原理控制整个流体湿润布料的过程,并且根据相关粒子饱和度的不同选择不同的纹理,用映射不同纹理的方式表现湿润过程中布料材质的改变。该模型计算效率高,且具有很强的可扩展性。Based on an analysis of the relationship between the fluid and the cloth, a new simulation approach is presented for the water flowing through the cloth. We introduce a physical model based on the improved mass-spring model. Similar to the particle model, we use the porous-particles structure, and the pores are the fluid storage space. Due to the difference of the fluid storage between the neighboring particles, the generated capillary pressure drives the flowing among all particles. According to the Darcy＇s law, our physical model can control the whole flowing process. According to the different saturation, we map different textures to demonstrate the variation of the wetting cloth materials. In this way, our model has high computational efficiency and strong extensibility.

关 键 词：湿润布料模拟 物理建模 弹簧质点模型 扩散作用 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]