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移动设备上基于地形高度场的快速绘制算法 被引量:1

Real-Time Rendering of Large Terrain on Mobile Device Based on Height Fields
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摘要 大规模地形快速绘制技术一直是3维可视化研究的重要内容之一。大区域场景通常包含了丰富的地理信息,数据量巨大。因此,必须对复杂地形场景进行必要简化,以实现移动设备上大区域3维地形的快速绘制。针对移动设备的特点,提出了一种基于地形高度场的自适应四叉树多分辨率动态建模的方法表达3维场景,通过简化3维场景模型和动态加载场景数据的策略,提高大区域3维场景绘制的效率。 Terrain rendering is an important factor in representation of 3D visualization. If terrains are large and detailed, there will be huge amount of data, so it is necessary to reduce the complexity of the rendered scene in real-time on mobile device. Aim at the characteristic of mobile devices, a multi-resolution technique based on height fields was proposed to simplify the scenes and improve the speed of terrains rendering. The key of the technique ks to develop an adaptive LOD framework that can optimally feed the graphic pipeline.
出处 《测绘科学技术学报》 北大核心 2009年第5期355-359,共5页 Journal of Geomatics Science and Technology
关键词 地形绘制 高度场 多分辨率模型 细节层次 四叉树 移动设备 terrain rendering height fields multi-resolution model level of detail quad-tree mobile devices
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参考文献7

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共引文献5

同被引文献2

  • 1JOACHIM P,JEAN-EUDES M.Adaptive Streaming and Rendering of Large Terrains Using Strip Masks[C] //Proceedings of ACM GRAPHITE.Dunedin,New Zealand,2005:299-306.
  • 2LINDSTROM P,KOLLER D,RIBARSKY W,et al.Real-time,Continuous Level of Detail Rendering of Height Fields[C] //Proceedings of SIGGRAPH 96,ACM SIGGRAPH,Annual Conference Series.New Orleans Louisiana America,1996:109-118.

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