基于粒子系统的船行波建模与绘制

Modeling and Rendering of Ship Wakes Based on Particle System

基于船行波理论和粒子系统理论实时生成三维船行波的方法,以矩形基本粒子对船行波粒子进行造型,采用动态纹理映射技术和透明度扰动方法,模拟船行波的辐射效果,根据船行波所受外力构建其运动方程,来描述船行进过程中船首波、船尾波粒子的运动效果,采用与视点相关技术实时生成船在海上航行的三维场景。与传统的基于物理模型的船行波模拟算法相比,该算法既正确模拟船行进时产生的船行波的运动行为和辐射行为,降低计算复杂性,真实再现船行波的三维视觉效果,在满足实时交互漫游的前提下表现出较强的真实感。实验结果表明,此方法能满足船行波实时模拟的需要。

The method of real time generation of ship wakes is based on ship wakes theory and the particle system theory.The particle's shape of ship wakes is rectangle.Using dynamic texture mapping and transparency's disturbance,simulates the radiometry of ship wakes.In addition,it describes the movement of ship wakes using simple physical equations when the different size particles suffered gravity,buoyancy,resistance and so on,creates the 3D view-dependent scene of ship sailing in ocean.Compared with the traditional method of ship wake's simulation,the method can generate realistic 3D visual effect,accurately simulates the ship wake's behavior and radiometry,reduces the complexity of computing,interact in the 3D scenes.Experimental results show that this method can satisfy the requirements of real-time simulation of ship wakes.