| 基于GPGPU的海量山地地形数据的实时绘制算法 |
| |
| 引用本文： | 王春,马纯永,陈戈.基于GPGPU的海量山地地形数据的实时绘制算法[J].计算机应用,2009,29(8). |
| |
| 作者姓名： | 王春 马纯永 陈戈 |
| |
| 作者单位： | 中国海洋大学,信息科学与工程学院,山东,青岛,266100 |
| |
| 基金项目： | 国家科技部中小型企业创新基金，上海市科委科技攻关项目 |
| |
| 摘 要： | 针对山地地形海量数据的特点,基于GPU的Geometrical Clipmap算法,应用简化的工作流程,结合GPGPU技术,采用了一种更为合理的高程数据组织交换模式,通过引入高程误差数据巧妙地解决不同分辨率之间的裂缝问题,并对高分辨率的遥感影像作为地形纹理的实现方法加以补充,进而实现可应用于虚拟现实系统的海量地形数据的实时可视化.
|
| 关 键 词： | 基于GPU的通用计算 几何体剪切图 山地地形 海量数据 |
Real-time rendering algorithm of massive mountainous terrain data based on GPGPU |
| |
| WANG Chun,MA Chun-yong,CHEN Ge.Real-time rendering algorithm of massive mountainous terrain data based on GPGPU[J].journal of Computer Applications,2009,29(8). |
| |
| Authors: | WANG Chun MA Chun-yong CHEN Ge |
| |
| Affiliation: | College of Information Science and Engineering;Ocean University of China;Qingdao Shandong 266100;China |
| |
| Abstract: | Concerning the characteristics of the huge data in mountainous region,the General-Purpose Computation on Graphics Processors (GPGPU) technology based on Geometrical Clipmap algorithm was introduced. It adopted easier working process,compressed the elevation data and error data into the floating-point type veins,and drew accurate mountain body grid in Vertex Shader. By introducing elevation error data,the crack problem between different resolutions was resolved. The primitive drawn number was reduced by desi... |
| |
| Keywords: | General-Purpose Computation on Graphics Processor Unit (GPGPU) geometrical clipmap mountain terrain massive data |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
