粒子系统理论在船舶操纵模拟器视景仿真中的应用

Application of Particle System Theory in Ship Handling Simulator Scene Simulation

在船舶操纵模拟器视景仿真系统实现中,需要建立大量的三维模型,以获得良好的仿真效果。粒子系统方法是模拟不规则自然现象的有效方法,但完全用粒子系统来实现航迹流的模拟,则需要大量的粒子计算、绘制时间,很难实现船舶操纵模拟器视景仿真系统快速模拟呈现实景效果的需求。本文提出了粒子系统和图像合成相结合的方法,达到真实、快速地模拟视景仿真系统中船舶航迹流的视觉呈现效果,既可以呈现波浪的动态效果,也可以反映海面恢复平静的效果。通过仿真计算证实了该方法能够满足船舶操纵模拟器模拟视景仿真的逼真度和实时性要求,提高了船舶操纵模拟器训练人员的沉浸感。

To obtain good simulation results,a large number of 3D models need to be built in the implementation of visual scene simulation system of ship handling simulator.Particle system which has been regarded as the most successful algorithm for simulating irregular fuzzy natural sceneries can simulate the ship track.Considering that it will take a long time of calculation and drawing for only using particle system,the method of combining simulation of ship wakes based on particle system with image synthesis is proposed to meet the real-time requirements of the system.The simulation results show that this method can satisfy the requirements of fidelity and real-time quality of the handling simulator scene simulation,which increases the immersion feeling of the person in training with ship handling simulator.