基于Creator/Vega的虚拟场景设计与实现

阐述了基于Creator/Vega的虚拟场景仿真系统的设计过程.结合虚拟场景系统开发实例,从视景建模角度,详细分析了纹理贴图得几何尺寸和模型多边形数量,对系统运行性能的影响,并提出了利用纹理贴图、LOD和网格等建模技术提高系统运行性能的方法.在虚拟场景驱动中,实现了利用键盘、鼠标等一般输入输出设备,进行步行、鸟瞰等多种方式的漫游,增进了人机交互性能.为使系统支持立体显示,运用了Vega提供的立体显示技术.文中涉及的技术对其它虚拟场景仿真系统的开发具有重要参考价值.

Design and Realization of Virtual Scene Based on Creator/Vega

The paper expatiates on the design process of the virtual scene simulation system based on Creator and Vega. With the instance of a virtual campus, from the aspect of the scene modeling, it analyzes the effect of the texture paster size and the model polygon amount on the operation performance of the system, and puts forward a lot of new realization methods including texture paster, LOD, mesh, and other modeling technologies in Creator, to improve the capability of the virtual scene simulation system. In virtual scene drive, it realizes many roam mode using the keyboard, mouse, and other common I/O equipments, to improve the man - machine interaction. In order to make the system support stereo display, it manages the stereo display technology of the virtual scene simulation in Vega. The technologies involved in this paper have significant reference values to the exploitation of other virtual scene simulation systems.