| 基于GPU的地形可视化加速算法研究 |
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| 关键词:terrain modeling ROAM algorithm GPU |
| 基金项目:国家自然科学基金(编号: 41571374);国家重点研发计划(编号: 2018YFB0504501; 2017YFB0503802) |
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| 摘要: |
| Research on Acceleration Algorithm of Terrain Visualization Based on GPU |
| Terrain visualization is a three-dimensional terrain simulation display using DEM, computer graphics and image processing technology. This technology is widely used in many fields, such as deep mineral prediction, mineral resource evaluation, virtual reality, entertainment games, flight simulation and so on. With the increase of data volume, the real-time and smooth visual effect of 3D terrain visualization is limited by the current level of computer hardware technology. In order to solve this problem, ROAM algorithm is used in terrain modeling, GPU high-speed parallel operation performance is used to accelerate the speed of terrain visualization modeling and the effect of model display. The experimental results show that: when the amount of calculation is small, the acceleration effect is not significant; with the increase of the amount of calculation, the calculation effect is more and more obvious; when the amount of calculation reaches a certain value, the acceleration effect reaches a stable acceleration trend. The research results provide original visualization technology support for similar work such as terrain visualization and mineral Resources evaluation. |
| LI Chao-kui,FANG Jun,XIAO Ke-yan,WANG Ning,ZHOU Qing-lan,WEI Han-tao.2020.Research on Acceleration Algorithm of Terrain Visualization Based on GPU[J].Acta Geoscientica Sinica,41(2):303-308. |
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