ROAM算法及其在地形实时渲染中的应用

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三维地形实时渲染由于数据量大,一般显示时不易全部显示所有模型,而是根据视距和地形情况,动态的改变地形显示的层次细节。本文研究基于层次细节LOD的ROAM算法及算法的加块改进来实现对地形的实时渲染。
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