A Multilevel Terrain Rendering Method Based on Dynamic Stitching Strips
A Multilevel Terrain Rendering Method Based on Dynamic Stitching Strips
复制标题
一种基于动态拼接条带的多级地形绘制方法
DOI：
10.3390/ijgi8060255
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发表时间：
2019-05
影响因子：
3.4
通讯作者：
Yuchang Sun
中科院分区：
文献类型：
--
作者：
Liwei Zhang;Jiangfeng She;Junzhong Tan;Biao Wang;Yuchang Sun
近几十年来，高质量的地形绘制一直是许多可视化应用的焦点。许多地形绘制方法都采用细节层次（LOD）策略来创建自适应地形模型，但不同层次之间的过渡处理往往不好，容易产生“爆”伪影，严重影响地形模型的真实感。近年来，许多研究人员尝试使用现代图形处理器（GPU）来完成繁重的渲染任务。通过利用GPU的强大功能，可以在真实的时间内渲染具有丰富细节的高质量地形模型，尽管弹出伪影的问题仍然存在。在这项研究中，我们提出了一个实时的地形渲染方法与GPU镶嵌，可以有效地减少弹出文物。结合视点相关的更新机制，提出了一种基于柔性动态拼接带（DSS）的多级地形表示方法。在渲染过程中，使用GPU细分将地形模型的主要部分细分为适当的级别。并行生成的DSS可以无缝地使不同级别之间的地形过渡更加平滑。实验结果表明，该方法能够满足实时绘制的要求，并取得了比其他方法更好的视觉效果。
High-quality terrain rendering has been the focus of many visualization applications over recent decades. Many terrain rendering methods use the strategy of Level of Detail (LOD) to create adaptive terrain models, but the transition between different levels is usually not handled well, which may cause popping artefacts that seriously affect the reality of the terrain model. In recent years, many researchers have tried using modern Graphics Processing Unit (GPU) to complete heavy rendering tasks. By leveraging the great power of GPU, high quality terrain models with rich details can be rendered in real time, although the problem of popping artefacts still persists. In this study, we propose a real-time terrain rendering method with GPU tessellation that can effectively reduce the popping artefacts. Coupled with a view-dependent updating scheme, a multilevel terrain representation based on the flexible Dynamic Stitching Strip (DSS) is developed. During rendering, the main part of the terrain model is tessellated into appropriate levels using GPU tessellation. DSSs, generated in parallel, can seamlessly make the terrain transitions between different levels much smoother. Experiments demonstrate that the proposed method can meet the requirements of real-time rendering and achieve a better visual quality compared with other methods.
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影响因子：
2.5
作者：
Paolo Cignoni;F. Ganovelli;E. Gobbetti;F. Marton;F. Ponchio;Roberto Scopigno
通讯作者：
Paolo Cignoni;F. Ganovelli;E. Gobbetti;F. Marton;F. Ponchio;Roberto Scopigno
影响因子：
0.7
作者：
M. Mikhaylyuk;P. Timokhin;A. Maltsev
通讯作者：
M. Mikhaylyuk;P. Timokhin;A. Maltsev
DOI：
10.1080/13658816.2014.900560
发表时间：
2014-09
影响因子：
5.7
作者：
Çetin Koca;U. Güdükbay
通讯作者：
Çetin Koca;U. Güdükbay
DOI：
10.1109/visual.1997.663860
发表时间：
1997-10
期刊：
Proceedings. Visualization '97 (Cat. No. 97CB36155)
影响因子：
--
作者：
M. Duchaineau;M. Wolinsky;David E. Sigeti;Mark C. Miller;C. Aldrich;M. Mineev-Weinstein
通讯作者：
M. Duchaineau;M. Wolinsky;David E. Sigeti;Mark C. Miller;C. Aldrich;M. Mineev-Weinstein
DOI：
10.1007/s003710050099
发表时间：
1997-07
期刊：
The Visual Computer
影响因子：
--
作者：
Paolo Cignoni;E. Puppo;Roberto Scopigno
通讯作者：
Paolo Cignoni;E. Puppo;Roberto Scopigno