| 一种针对飞行模拟的动态地形绘制误差判断方法 |
| |
| 引用本文： | 傅为,葛子厚,李文辉.一种针对飞行模拟的动态地形绘制误差判断方法[J].吉林大学学报(理学版),2012,50(6):1175-1178. |
| |
| 作者姓名： | 傅为 葛子厚 李文辉 |
| |
| 作者单位： | 1. 漳州师范学院 网络与计算机教学部, 福建 漳州 363000,2. 空军航空大学 飞行器与动力系, 长春 130022;3. 吉林大学 计算机科学与技术学院, 长春 130012 |
| |
| 基金项目： | 国家自然科学基金(批准号:60873147) |
| |
| 摘 要： | 针对飞行模拟的特点, 提出一种基于受限四叉树的大规模地形绘制误差判断方法. 该方法利用误差饱和概念, 采用符合并行计算要求的误差判断准则进行层次细节的选取, 使误差判断与三角化过程完全由图形处理器(GPU)执行, 提高了图形硬件的绘制效率, 节省了中央处理器(CPU)运行时间, 可用于高速飞行模拟中的大规模地形实时绘制.
|
| 关 键 词： | 飞行模拟 地形绘制 约束四叉树 嵌套几何误差 |
| 收稿时间： | 2012-03-13 |
A Terrain Rendering Method with Dynamic Error Metric for Flight Simulation |
| |
| FU Wei,GE Zi-hou,LI Wen-hui.A Terrain Rendering Method with Dynamic Error Metric for Flight Simulation[J].Journal of Jilin University: Sci Ed,2012,50(6):1175-1178. |
| |
| Authors: | FU Wei GE Zi-hou LI Wen-hui |
| |
| Institution: | 1. Department of Network and Computer Education, Zhangzhou Normal University,Zhangzhou 363000, Fujian Province, China;2. Department of Aircraft and Power, Aviation University of Air Force, Changchun 130022, China;3. College of Computer Science and Technology, Jilin University, Changchun 130012, China |
| |
| Abstract: | In view of the requirement of flight simulation, we presented a large scale terrain rendering method with dynamic error metric, which is based on restricted quad tree. By means of error saturation, the error metric of our method meets the requirements of parallel computing that can be used toselect terrain grid points, which makes the error metric and triangulation executed by GPU. It improves the rending efficiency of image hardware, and saves therunning time of CPU. The algorithm can be used for real time rendering of large scale terrain in high speed flight simulation. |
| |
| Keywords: | flight simulation terrain rendering restricted quad tree nested geometric space error |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《吉林大学学报(理学版)》浏览原始摘要信息 |
| 点击此处可从《吉林大学学报(理学版)》下载免费的PDF全文 |
|
