The author describes and compares several well known algorithms for real-time rendering of large scale terrain.
介绍和比较几种代表性的算法，这些算法采取不同的方式对大规模地形实时绘制。
参考来源 - 虚拟地理环境中地形地貌建模研究·2,447,543篇论文数据，部分数据来源于NoteExpress
地形实时绘制时LOD数据的选择是基于屏幕误差的。
In rendering time, the choosing of LOD is driven by screen space error.
该方法具有很好的几何局部连续性，在实时绘制中能快速的检索。
This method has good geometry local continuity and index data with high speed in real-time rendering.
不规则模糊物体的建模和实时绘制方面都有很多值得研究的问题。
There are many issues that is worth researching in terms of modeling and rendering anomalous fussy object.
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