近岸水域的波浪与水面仿真  

Simulation of Wave and Water Surface Near the Seashore

作　　者：皮学贤[1] 杨旭东[1] 李思昆[1] 宋君强[1] 

机构地区：[1]国防科学技术大学计算机学院,长沙410073

出　　处：《计算机学报》2007年第2期324-329,共6页Chinese Journal of Computers

基　　金：国家"九七三"重点基础研究发展规划项目基金(2002CB312105);国家"八六三"高技术研究发展计划项目基金(2004AA115130)资助

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.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.

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 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]