The technique details of the terrain generation of scene, texture map, LOD and transferring instance are discussed.

对场景的地形构造、纹理映射、LOD技术、实例调用等建模技术细节进行了深入探讨。

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Level of detail (LOD) are a group of models at different levels, which are used to describe one scene or its object and be selected for protracting.

细节层次模型是指对同一个场景或场景中的物体，使用具有不同细节的描述方法得到一组模型，供绘制时选择使用。

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Occlusion culling and LOD (Level of Details) both are effective techniques in accelerating the rendering process of 3d large scene.

遮挡裁剪和应用层次细节模型是两种有效的三维复杂场景渲染加速算法。

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