Aiming at the limitation of the eye point position fixing method in the Vega environment, the observer scene principle of Vega is analysied. A eye point model about all orientation of omnibearing used to virtual battlefield environment is carried out,and the arithmetic of model is assayed. Lastly,the vantage of arithmetic is summarized by a simulation experi ment.%针对目前Vega环境中观察者视点定位方法存在的缺陷,系统分析Vega中观察者观察场景原理,提出一种用于虚拟战场环境的全角度视点模型,并对该模型算法进行分析.最后,通过仿真实验,总结该算法的优势所在.
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