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近岸水域的波浪与水面仿真
引用本文:皮学贤,杨旭东,李思昆,宋君强.近岸水域的波浪与水面仿真[J].计算机学报,2007,30(2):324-329.
作者姓名:皮学贤  杨旭东  李思昆  宋君强
作者单位:国防科学技术大学计算机学院,长沙,410073
基金项目:国家重点基础研究发展计划(973计划) , 国家高技术研究发展计划(863计划)
摘    要:近岸水域由于受地形的影响,其波动呈现出与地形等高线垂直的趋势.已有的海面仿真与绘制算法未能实现近岸水域的逼真模拟.文中通过对方向频率谱模型的分析,提出了波浪方向分布函数的分解模型;在已有的基于多分辨率网格和噪声分形面的海面仿真算法框架下,实现了深海水域到近岸水域的过渡以及近岸水域的模拟.实验表明,该方法适合大规模自然场景应用中的水域仿真,其绘制效果逼真性好,绘制速度较快(50FPS以上),能满足交互式应用的需求.

关 键 词:真实感绘制  水面建模  实时仿真  海面场景  方向分布函数  近岸水域  波浪  仿真  Surface  Water  Wave  需求  交互式  速度  逼真性  效果  绘制  应用  自然场景  大规模  方法  实验  模拟  深海  算法框架
修稿时间:2006-03-072006-10-13

Simulation of Wave and Water Surface Near the Seashore
PI Xue-Xian,YANG Xu-Dong,LI Si-Kun,SONG Jun-Qiang.Simulation of Wave and Water Surface Near the Seashore[J].Chinese Journal of Computers,2007,30(2):324-329.
Authors:PI Xue-Xian  YANG Xu-Dong  LI Si-Kun  SONG Jun-Qiang
Affiliation:School of Computer Science, National University of Defense Technology, Changsha 410073
Abstract:Due to topographic influence, water wave near coastlines will be trend to be vertical to the contour of terrain. To generate the realistic wave seen near coastlines, no solution yet exists in the computer graphics field. This paper analyzes the direction-frequency spectrum of ocean wave, and presents a novel decomposed model of direction-distribution of ocean wave. Then, based on multi-resolution grid and fractal noise surface, the authors put forward a simulation method of the transition from deep water to shallow water. The experimental results show that these methods are effective and appropriate to the development of 3D games and battlefield applications.
Keywords:realistic rendering  water surface modeling  real-time simulation  ocean scene  direction distribution function  
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