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DOI:
Journal of Software:2014.25(S2):247-257

基于球面投影网格的大规模复杂水面模拟
熊元,刘世光
(天津大学 计算机科学与技术学院, 天津 300072;天津大学 计算机科学与技术学院, 天津 300072;天津市认知计算与应用重点实验室, 天津 300072)
Large-Scale Simulation of Complex Water Scenes Based on Spherical Projected Grid
XIONG Yuan,LIU Shi-Guang
(School of Computer Science and Technology, Tianjin University, Tianjin 300072, China;School of Computer Science and Technology, Tianjin University, Tianjin 300072, China;Tianjin Key Laboratory of Cognitive Computing and Application, Tianjin 300072, China)
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Received:May 09, 2014    Revised:August 19, 2014
> 中文摘要: 针对目前大规模复杂水面模拟中存在的效率不高、碰撞检测较为复杂等问题,提出了一种海洋尺度复杂水面模拟解决方案.首先,提出了一种球面投影网格方法实现大规模动态水面波动效果的模拟.与传统的投影网格方法相比,该方法不需要重新构造与球面直接相交的投影体,具有更高的绘制效率并且适合图形硬件加速.其次,设计了高效的交互式复杂水面的模拟方法,包括水面和刚体交互作用的模拟及刚体与地形的快速碰撞模拟.此外,给出了通用的泡沫绘制和海岸线绘制方法.实验结果表明,该方法的模拟结果较为逼真,能达到较高的绘制速度(FPS>60),适用于计算机游戏、虚拟现实等实时环境.
中文关键词: 水面  实时  球面投影网格  泡沫  碰撞检测  GPU
Abstract:Current simulation methods for large-scale complex water scenes suffer from various problems such as low efficiency, and complicated collision detection. To remedy these problems, this paper presents a novel method for ocean-scale complex simulation based on spherical mapping projected grid. First, a novel spherical projected grid method is proposed for animating large scale water waves. Compared with conventional projected grid method, the new method does not need reconstructing projectors intersecting with the sphere, and thereby can achieve higher rendering efficiency which is also suitable for graphics hardware acceleration. Then, a new method is designed for simulating interactions including water-rigid body interaction and rigid body-terrain interaction. Additionally, a general bubble and coast line rendering framework is provided. Experiments demonstrate that the proposed method can realize realistic rendering results with high rendering rates (FPS>60), and can be applied in real time scenarios such as computer games and virtual reality.
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基金项目:国家自然科学基金(61170118,60803047);天津市应用基础与前沿技术研究计划(14JCQNJC00100) 国家自然科学基金(61170118,60803047);天津市应用基础与前沿技术研究计划(14JCQNJC00100)
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熊元,刘世光.基于球面投影网格的大规模复杂水面模拟.软件学报,2014,25(S2):247-257

XIONG Yuan,LIU Shi-Guang.Large-Scale Simulation of Complex Water Scenes Based on Spherical Projected Grid.Journal of Software,2014,25(S2):247-257