基于物理模型的近岸海浪建模与实时绘制  

Physically Based Modeling and Real-time Rendering of Near-shore Waves

作　　者：李永进[1,2,3] 金一丞[1] 任鸿翔[1,3] 华炜[3] 

机构地区：[1]大连海事大学航海学院,大连116026 [2]公安海警高等专科学校船艇指挥系,宁波315801 [3]浙江大学CAD&CG国家重点实验室,杭州310058

出　　处：《中国图象图形学报》2010年第3期518-523,共6页Journal of Image and Graphics

基　　金：国家重点基础研究发展计划(973)项目(2002CB312103;2009CB320805);浙江大学CAD&CG国家重点实验室开放课题(A0401)

摘　　要：提出一种可以逼真地模拟大面积近岸海浪的方法。首先利用Boussinesq类方程求得指定海域一段时间内的海面运动序列;然后通过对此序列进行重建,得到"无限"长的海面运动序列;最后把相应的海面高度场作为顶点纹理进行绘制。在绘制时采用视点相关的海面网格,达到实时绘制的效果。实验表明,该方法模拟的大面积近岸海浪真实感强,绘制速度快,适合于实时仿真应用。This paper presents a new method to simulate large areas of near-shore waves. Firstly, the correct wave surface movement at appointed area in a period of time is obtained by solving Boussinesq type equations, which can describe the compositive phenomena of near-shore wave： refraction, diffraction, reflection and wave-wave interaction. Secondly, the movement of wave in finite time can be changed to infinite time by reconstructing the sequence of the waves＇ height fields. Finally, in real-time rendering process the corresponding wave height fields are sampled by the view-dependent sea surface grid as vertex textures. The experimental results show that this method is realistic and effective. It is appropriate for realtime simulation applications.

关 键 词：近岸海浪模拟 海浪建模 海浪绘制 海浪模拟 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]