新一代Web三维图形标准X3D及其应用  

X3D-a Next Generation Standard for Web3D and Its Application

作　　者：李华[1] 宋蔚[1] 

机构地区：[1]重庆大学计算机学院,重庆400030

出　　处：《重庆大学学报（自然科学版）》2005年第11期31-34,共4页Journal of Chongqing University

基　　金：重庆大学研究生创新基地创新基金支持(2004C010)

摘　　要：随着W eb应用的发展,基于W eb的虚拟现实技术得到广泛的应用.在W eb三维图形技术领域,原有的技术标准VRML(V irtual RealityModeling Language)由于自身的缺点难以适应W eb3D的应用发展,为此W eb3D联盟提出了新一代W eb三维图形标准X3D(Extensible 3D Specification).X3D采用模块化的结构,使用多种文件编码形式,有统一的应用程序模型界面以及可扩展的规格结构,是开放的、可扩展的标准.笔者分析了X3D的技术特点,并对它的产生背景、发展现状及支持工具作了介绍.然后在此基础上给出了一个应用的实例.With the development of Web application, virtual reality technology based on Web is popular. In Web3D field, the old standard of VRML（Virtual Reality Modeling Language）has many problems and is not fit for the development. So the Web3D Consortium provides a next generation standard for Web3D--X3D（ Extensible 3D specification）. X3 D,using multiple file encodings describing the same abstract model including XML, has a modular architecture allowing a range of levels of adoption and support for many different market types. It also has a unified application program- ming model and an expanded specification structure. The technology character of X3D is mainly analyzed. Also the background, development and supporting tools of X3D are introduced. And then an example of application using X3D is given.

关 键 词：虚拟现实 Web三维图形技术 虚拟现实造型语言 可扩展三维图形规范 可扩展标记语言 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]