摘要： 针对VRML虚拟场景建模可定制性差和开发效率低的缺陷，提出一种基于XML的参数化虚拟场景建模技术，增强了VRML 场景建模的可定制性，提高了开发效率，并对大场景采用区域划分的方法，提高了大场景的绘制速度，在虚拟城市的构建项目中得到了较好的应用。

关键词: 虚拟现实, 虚拟现实建模语言, 参数化场景建模, XML

Abstract: Virtual scene modeling based on VRML has limitation in customizability and developing efficiency. This paper proposes a parametric virtual scene modeling technology based on XML, which improves the customizability and developing efficiency in virtual scene modeling based on VRML. It adopts the method of region partitioning to increase the rendering velocity. The technology is applied well in the project of virtual city.

Key words: Virtual reality, Virtual reality modeling language (VRML), Parametric virtual scene modeling, XML