This paper introduced the modeling process and realization method and terrain simplification of the freeway three-dimensional scene.

文中介绍了高等级公路三维视景的建模过程、实现方法，以及地形的简化技术。

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The performance of the traditional way includes plane image, vedio and three-dimensional modeling. Static image can only provide images of the scene at an angle.

在传统的表现方式中，展示的手段无非是静态的平面图片和动态的视频，也有进行三维建模进行展示的。

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According to the whole design, a flight training scene system is developed through three steps: three-dimensional modeling, virtual scene configuration and virtual scene real-time drive.

通过三维建模、虚拟场景配置、虚拟场景实时驱动三个步骤对视景系统进行实现，开发出一套适用于多机空战战法训练的飞行视景仿真系统。

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According to the whole design, a flight training scene system is developed through three steps: three-dimensional modeling, virtual scene configuration and virtual scene real-time drive.

通过三维建模、虚拟场景配置、虚拟场景实时驱动三个步骤对视景系统进行实现，开发出一套适用于多机空战战法训练的飞行视景仿真系统。

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