实现复杂态势符号在3维场景中的绘制

The Implement of Rendering Situation Symbol over 3D Terrain

通过分析态势符号的表达方式和特点,提出了一种基于模板阴影体技术的实时绘制复杂态势符号的方法,来实现在3维场景中的高质量叠加显示态势符号,达到随地形起伏的目的。实验证明,该方法能够用于在3维场景中绘制复杂态势符号,并且在系统项目中取得很好效果,使绘制出的态势符号能够随地形起伏。

In this paper, we analyzed the representation mode and character of situation symbol, presented a new rendering method of complex situation symbol over 3 D terrain based on the stencil shadow volume technique, and realized the objective of displaying according to terrain. Experiment has proved that the method can be used to render complex situation symbol over 3D terrain, acquire good effect in system. The rendered situation symbol can be displayed according to terrain.