基于自适应网格重划分的织物动态仿真  

Fabric dynamic simulation based on adaptive remeshing

作　　者：李双双 胡新荣 刘军平[1,2] 彭涛 陈常念 LI Shuangshuang;HU Xinrong;LIU Junping;PENG Tao;CHEN Changnian(School of Mathematics and Computer,Wuhan Textile University,Wuhan 430200,China;Engineering Research Center of Hubei Province for Clothing Information,Wuhan Textile University,Wuhan 430200,China)

机构地区：[1]武汉纺织大学数学与计算机学院,武汉430200 [2]武汉纺织大学湖北省服装信息化工程技术研究中心,武汉430200

出　　处：《丝绸》2020年第4期35-39,共5页Journal of Silk

基　　金：国家自然科学基金项目(61103085)。

摘　　要：一直以来织物细节的动态模拟是图形学界研究的热点和难点。针对这一问题,文章提出了一种基于自适应网格重划分的织物动态模拟方法。首先,分析织物的物理特性,基于经典的质点弹簧模型,建立织物仿真模型。在织物动态仿真过程中,由于不同时刻织物的受力情况不同,导致织物不同程度的变形。根据其变形幅度的不同,利用边缘曲率准则对网格进行自适应重划分,采用推进波前法对网格重新生成,实现织物的自适应动态仿真。实验结果表明,自适应网格重划分的织物动态仿真方法,在确保仿真实时性的同时,能够有效改进织物的仿真效果,鲁棒性强。The dynamic simulation of fabric details has always been being a hot and difficult topic in graphic field.In view of this,a fabric dynamic simulation method based on adaptive remeshing is proposed in this study.Firstly,the physical properties of fabrics are analyzed,and a fabric simulation model is established based on the classic mass-spring model.During the dynamic simulation of fabric,due to the different stress conditions of the fabric at different time points,the fabric is deformed to different degrees.According to the different degrees of deformation,the edge curvature criterion is used for adaptive remeshing,and the mesh is regenerated using the advancing front technique,to realize adaptive dynamic simulation of fabric.The experimental results show that the adaptive remeshing method of fabric dynamic simulation proposed herein can largely improve the simulation effect of fabric while ensuring the real-time performance of the simulation,and has strong robustness.

关 键 词：自适应网格重划分 质点弹簧模型 边缘曲率 织物动态模拟 鲁棒性 

分 类 号：TS101.91[轻工技术与工程—纺织工程]