基于三角形二叉树适应网格的地形场景绘制算法

The Terrain Scene Rendering Algorithm Based on Triangle Binary Tree Adapting Meshes

随着计算机图形学、地理信息系统和虚拟现实技术的飞速发展以及数字虚拟城市的建立,基于海量地形数据场景的绘制成为首要解决的问题。文章在总结了相关研究的基础上,重点对实时优化适应网格技术进行了改进和完善,并对其的关键算法进行了详细的论述,最后笔者开发了一个实验程序,证明了该方法对于增强地形模型的绘制效率是非常有效的。

With the advent of computer graphics,Geographic Information System,Virtual Reality technologies and virtual digital cities being built,solving real-time rendering the landscapes based on massive terrain data become a virtual problem.The article firstly summaries the relative research in this field and then the authors improve the technology of real-time optimally adapting meshes and focus on some important algorithms of it;finally a prototype system has been developed to show that the technology is very good for the real-time rendering.