交互式服装实时动画的研究与实现

Physically Based Real-time Animation of Interactive Garment

提出了一种基于物理模型且与人体模型相结合的交互式服装实时动画的方法。在以往的研究中,人们提出了许多的交互式服装运动的方法,但这些方法的一个主要缺点是复杂高、计算效率低,无法满足实时交互式服装设计与动画的要求。文中提出的方法首先根据服装本身的物理特性,通过减少弹簧的类型来简化"质点-弹簧"模型;其次,利用"半刚性复杂摆"模型经向与纬向约束分开计算的优点;最后,根据服装与人体模型之间碰撞检测存在的局部性,通过时间与空间相关性来加速碰撞检测。因此大大减少了计算,确保了稳定性;运用跨平台语言java3D实现了与人体模型相结合的交互式服装的实时动画,并且可直接通过IE浏览器应用于电子商务与服装三维虚拟展示,达到了理想的实验结果。

In this paper, a new real - time interactive garment simulation is proposed, which not only significantly reduces the time of rendering, but also maintains visually appealing results. According to the physical characteristics of garments, firstly the ＂particle - spring＂ model is simplified. Secondly, the advantages of processing separately the longitudinal and latitudinal restriction in ＂semi - rigid - complex pendulum＂ model is used. Lastly, according to temporal and geometric coherence, the collisions detection between a character and a garment is accelerated because this collision is very local. As a result, the movement of interactive garment generated can be applied to electronic commerce and visual exhibition of 3D - garmnet.