一种基于OpenGL顶点处理机制的织物交互仿真方法  

A Method for Fabric Interaction Simulation Based on OpenGL Vertex Processing

作　　者：李东辉[1] 侯进[1] 黄聪[1] 

机构地区：[1]西南交通大学信息科学与技术学院,成都611756

出　　处：《重庆理工大学学报（自然科学）》2016年第12期114-121,共8页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金面上项目(61371165);成都市科技项目(科技惠民技术研发项目)(2015-HM01-00050-SF);四川省动漫研究中心2015年度科研项目(DM201504)

摘　　要：在生活中织物是作为人的附属品而存在的,传统织物仿真过程中对人与织物的交互性研究很少。针对这种情况,提出了一种基于OpenGL(open graphics library)顶点处理机制的织物仿真方法。首先建立基于质点-弹簧的织物仿真模型,包括布料和服装两种,然后对织物进行受力分析并对力学方程采用显式欧拉法求解,之后利用OpenGL的顶点处理机制将鼠标客户区坐标映射到织物质点上,最后进行碰撞检测得到受客户区坐标约束的织物交互效果。实验结果表明:该方法能够逼真地模拟出织物受人为干预时的物理效果,同时具有较好的实时性和真实性。Fabric is the accessory of people in real life,but classical fabric simulation almost has no interaction study between people and fabric. In view of this,a method for fabric interaction simulation based on Open GL（ Open Graphics Library） vertex processing is proposed. Firstly, the fabric simulation models including cloth and garments are built based on mass-spring. Secondly,this paper analyze the forces of fabric and calculate the solution of dynamical equation by explicit Euler method.Thirdly,the client coordinate of the mouse can be mapped to the vertex in fabric by using Open GLvertex process. Finally,the interaction effect constrained by the client coordinate is achieved after collision detection. The experimental results show that the method can realistically simulate the interaction effect and have good real-time performance as well.

关 键 词：织物仿真 质点-弹簧 交互 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]