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| 大规模地形的快速漫游算法 | |
| 引用本文： | 吴晶,徐晓刚,王建国,严科伟.大规模地形的快速漫游算法[J].计算机仿真,2009,26(2). |
| 作者姓名： | 吴晶 徐晓刚 王建国 严科伟 |
| 作者单位： | 1. 海军蚌埠士官学校信息技术系,安徽,蚌埠 2. 海军大连舰艇学院装备系统与自动化系,辽宁,大连,116018 3. 海军装备研究院,北京,100073 |
| 摘 要： | 虚拟战场仿真中,对大规模地形进行实时、逼真的绘制是个关键问题.在ROME算法的基础上采用了基于视点的连续LOD优化算法,通过对大规模地行进行预分块,采用投影三角形扫描算法实现快速裁剪,较大的减少了实际需要绘制的网格数据量,提高了运算速度,在实时性方面有了较大的改进.对于不同等级网格边界间的裂缝问题,采用ROME算法中的基于二元三角形的强制分割方法消除.实验结果表明,算法运行结果良好,在普通PC机上实现了动态的具有连续细节层次的大规模地形实时漫游.算法简单实用,地形渲染后的视觉效果良好. |
| 关 键 词： | 二元三角树 连续层次细节 视见体裁剪 可见性判断 |
Real-time Walkthrough of Large Terrain |
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| WU Jing,XU Xiao-gang,WANG Jian-guo,YAN Ke-wei.Real-time Walkthrough of Large Terrain[J].Computer Simulation,2009,26(2). | |
| Authors: | WU Jing XU Xiao-gang WANG Jian-guo YAN Ke-wei |
| Affiliation: | 1. Department of Information Technology;Bengbu Naval Petty Officer Academy;Bengbu Anhui 230012;China;2. Department of Automatization;Dalian Naval Academy;Dalian Liaoning'16018;3. Navy Academy of Armament;Beijing 100073;China |
| Abstract: | Real-time and visibility rendering of large terrain is a sixty-four-dollar question in battlefield simulation. This paper takes the methods of view-dependent continuous level of detail based on ROME method,and based on block and the projection of the view frustum on X-Y plane to realize fast clipping. It declines much data sets in performance,enhances the computing speed and makes a big improvement in real-time rendering of terrain. Triangle bintree-based splitting method was used for crack elimination. The... |
| Keywords: | Triangle bintree Continuous level of detail View frustum culling Visiblility judgment |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |