为了能在基于PC平台的虚拟现实中实现更具真实感的人体运动仿真，该文提出一种改进的约束求解方法，将人体建模为基于约束关节树的骨骼结构。
In order to make human motion simulation more realistic in Virtual Reality on PC platform, this paper introduces an improved method of modeling human body as a tree with constraint joints.
除了具有重要的科学研究意义，真实感人脸建模还具有广泛的实际应用。
In addition to important scientific significance, realistic face modeling also has a wide range of practical applications.
真实感树木实时绘制研究一直以来都是计算机图形学的一个热点领域，因为树木复杂的细节结构使其无论是在建模、存储还是绘制上都存在相当大的困难。
Research on real time rendering of realistic tree is a focus field of computer graphic all the time, because complicate detail structure of tree makes it very difficult to model, store, rendering.
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