At chapter 4, we focus on our research on the rendering, roam and continuous multiresolution terrain simplification algorithm of large-scale terrain scene.

在第4章重点研究了大规模地形场景的显示和漫游技术和实时连续的多分辨率地形简化算法。

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Experimental result shows that this algorithm can efficiently improve the performance of ROAM algorithm and can be used in real-time walkthroughs in large-scale terrain at high frame rates.

实验结果表明，该算法可以有效提高ROAM算法性能，能以较高帧速实现大规模地形的实时漫游。

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