布料动画技术是计算机动画领域的热点研究方向,可以广泛应用于数字娱乐、三维游戏以及服装工业等多个领域.布料动画技术最为核心的研究问题是布料动画方法,其旨在构建动画模型,驱动布料产生形变,继而生成连续动画.好的布料动画方法是保证富有动感、且视觉逼真的布料动画生成的根本因素.近年,由于实际应用对布料动画模拟逼真性与实时性等需求的迫切增长,许多新技术和新方法应运而生.文中重点围绕布料动画方法的研究进展进行介绍.首先在对国内外研究工作进行全面分析与总结的基础上,根据生成布料动画所采用的技术不同,将其分为几何法、物理法、混合法、自适应网格法、约束动力学法、实例数据法、并行计算法等7大类,详细阐述每一类方法的原理及特点,并重点介绍每类方法近期出现的新工作；其次,对各类方法的优缺点及产业影响进行对照分析；最后,结合实际应用需求,针对目前工作中存在的不足,提出一些可继续深入研究的问题,并指出布料动画技术研究与应用的前景方向.%Cloth animation plays an important role in many applications of digital entertainment, 3D games, fashion design and manufacturing. It has been one of the hottest topics in the field of computer graphics for many years. The research of cloth animation is full of technical challenges. Its most key topic is cloth animation method, which aims to build animation model to generate continuous animation. Good animation models are the foundation of dynamically realistic animation results. Recently, as the growth of the requirement for authenticity and real-time in practical applications, many new methods have emerged, which greatly enhance the animation and improve the performance. This paper focuses on cloth animation modeling. First, describes cloth animation from seven perspectives, including geometry-based animation, physically-based animation, hybrid-based animation, adaptive mesh animation, constrained animation, example-based animation and parallel computing based animation, details their principles and advantages, and highlights recent works. Second, raises some challenging issues and analysis their impacts on industry. Finally, we forecast broader application prospect of cloth animation.
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