大规模三维地形场景实时漫游系统的构建

该文阐述了构建大规模三维地形模型的关键技术，包括地形分块技术、多分辨率模型管理技术、多级纹理贴图技术，给出了实时渲染时的动态调度与管理方法，并对在三维地形中显示文化特征做出一些探索和尝试。最后利用上述提出的技术，做了一些关于某一大规模三维地形实时漫游方面的实验，文中详细列出了这些实验结果。实验结果表明，采用该文提出的方法，可以在普通PC机上实现大规模三维地形场景的实时漫游。

Construction of the Real-time Navigation System for Large Scale 3D Terrain Scene

This paper describes the key techniques for constructing a large scale 3D terrain model, including terrain segmentation, multi - resolution model management, multilevel texture mapping. This paper presentes a dynamic management method for real - time rendering the model. Some steps are tried for embedding the culture features into 3D terrain models. At last, we do some experiments and the results are listed in the paper. The experiments show it is possible to real - time navigate the large scale 3D terrain scene on a normal personal computer if the methods in this paper are applied.