| 虚拟环境中大范围三维地形模型简化方法研究与实现 |
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| 引用本文： | 臧新锐,付春龙,樊旭艳.虚拟环境中大范围三维地形模型简化方法研究与实现[J].遥感信息,2007(1):81-83. |
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| 作者姓名： | 臧新锐 付春龙 樊旭艳 |
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| 作者单位： | 1. 解放军装备指挥技术学院,北京,101416;解放军91039部队,北京,102401
2. 解放军91039部队,北京,102401 |
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| 摘 要： | 大范围三维地形模型生成技术是虚拟自然环境和虚拟仿真领域中视景系统的重要组成部分,本文基于真实地形数据的地形生成及实时显示技术,分别介绍了常用的地形简化方法视截体裁剪技术、细节层次模型(LOD)技术和多分辨率纹理贴图(mip-map纹理)技术,并提出了一种基于视点变化的地形模型简化方法——基于视点自动裁剪的多LOD模型生成技术。
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| 关 键 词： | 三维地形生成 视截体裁剪技术 细节层次模型(LOD)技术 |
| 文章编号： | 1000-3177(2007)89-0081-03 |
| 修稿时间： | 2006-09-25 |
The Study and Realization on the Simple Method of Large-scale Three-dimension Terrain Model in Virtual Environment |
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| ZANG Xin-rui,FU Chun-long,FAN Xu-yan.The Study and Realization on the Simple Method of Large-scale Three-dimension Terrain Model in Virtual Environment[J].Remote Sensing Information,2007(1):81-83. |
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| Authors: | ZANG Xin-rui FU Chun-long FAN Xu-yan |
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| Abstract: | Large-scale 3D terrain model generation technique is an important component of view scene system in virtual natural environment and virtual simulating fields.Basing on generation of real terrain data and real-time display technique,this paper introduces respectively common simplification methods,view-frustum culling technique,LOD model technique and mip-map technique,and puts forward a simplification method of terrain model that is multi-LOD model generation technique based on automatic view culling. |
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| Keywords: | 3D terrain generation view-frustum culling technique LOD model technique |
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