基于Virtools的视景系统优化技术研究  

Practical Method for Optimizing the Visual System Based on Virtools

作　　者：李勋祥[1] 饶成[1] 陈定方[1] 

机构地区：[1]武汉理工大学物流工程学院

出　　处：《武汉理工大学学报（交通科学与工程版）》2008年第1期100-103,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：中国博士后科学基金项目(批准号:20070410968);全国艺术科学"十五"规划国家青年基金项目(批准号:05CA068);湖北省教育科学"十一五"规划课题项目(批准号:2007B089)资助

摘　　要：提出在视景系统中实现的一种景物优化方法.根据细节层次技术原理,实时简化场景的多边形网格,将景物合理分类,对不同类型的景物相应采取了不同的优化策略.探讨了在Virtools Dev开发环境中应用基于渐进网格算法的实时连续LOD技术来解决这一问题的方法和策略,并利用开发平台软件包Virtools Dev的SDK,开发出了一种基于视距的LOD行为模块型控件,作为对Vir-tools Dev集成的几种LOD技术的有力补充.A method for optimizing the sceneries in the vehicle driving simulator visual system is proposed,which is based on the LOD technology to simplify or complicate the polygon meshes of the sceneries.It divides the sceneries into categories with different optimization strategies.The method and strategy with real time continuous LOD technology based on Progressive Mesh in the Virtools Dev for resolving the problem mentioned above are discussed.A LOD behavior Building Block based on the distance between viewpoint and object is developed with the SDK,as a powerful assistance to the integrated LOD technologies in Virtools Dev.

关 键 词：VIRTOOLS 视景系统 细节层次 规则网格 

分 类 号：U467.525[机械工程—车辆工程]