基于动态LOD四叉树算法的地形三维可视化

LOD模型是在虚拟现实技术中经常被采用的一种加快图形生成速度的主要方法。所谓的LOD建模，其实质就是采用一定的算法思想将原有的网格地形数据进行重组，得到一种更加便于实时绘制使用的数据结构。在利用四叉树方法进行LOD建模的过程中，其关键就在于怎样对原有的网格数据进行四叉树分层。LOD地形渲染过程中当相邻的节点或块之间分辨率不一致时会出现裂缝现象，结合动态LOD四叉树算法利用节点分割和渲染的规律，采用一种新的裂缝消除方法。

Terrain 3D Visualization based on Dynamic LOD Quadtree Arithmetic

LOD model is a method that often used for accelerating figure generating speed in Virtual Reality Technology.In reality,in order to get more convenient data organization for drawing,LOD model is to use theory of algorithms to reform intrinsic grid topographic data base.We use quadtree in the LOD model,the key is how to delaminate quadtree for intrinsic grid topographic data base.When distinguishability between adjacent nodes or blocks is disaccord,it will cause crack in LOD terrain render.This text use a ne...