虚拟建筑环境实时漫游系统的设计和实现

Design and Accomplishment of a Real Time Walkthrough System in Virtual Archite cture Environment

讨论了虚拟建筑环境实时漫游系统的特点和要求 ,探讨了虚拟场景的建模和仿真驱动。提出了基于光线跟踪的虚拟物体拾取算法 ,提供方便的交互工具 ,实现了立体视觉。结合西南交通大学校园漫游系统 ,给出了一个具体的应用实例。

The application of virt ual reality in architecture is a very hot topi c. In a walkthrough system, a user can observe the architecture in different vie w interactively. This paper discusses the characteristics and requirements of a real time walkthrough system. It also discusses the method of modeling and image generation for virtual environments. Meanwhile, the algorithm of object capture according to ray tracing and some convenient interactive tools are presented. T he developed system produces a stereoscopic display and has a friendly user inte rface. Additionally, a specific application example is given based on the campus walkthrough system of Southwest Jiaotong University.