OpenGL中基于粒子系统的喷泉模拟实现

喷泉效果可以大大增强虚拟现实系统的沉浸感,对喷泉的模拟在视景仿真系统、计算机游戏、三维动画中有着广泛的运用.粒子系统是模拟喷泉的一种有效方法.目前一些喷泉模拟方法中存在算法复杂、粒子数量巨大、计算耗时、图像不真实等问题.文中提出了一种基于等加速运动和色彩融合的喷泉模拟方法.基本思想是在运用物理学原理模拟实现喷泉粒子的运动轨迹时,结合等加速运动来简化粒子运动状态,并采用纹理色彩融合绘制粒子.最后,运用VC 6.0和OpenGL开发工具实现了喷泉特效的模拟.实验证明该算法实现简单,模拟的喷泉效果满足实时性和逼真性的要求.

Fountain Simulation Based on Particle System in OpenGL

The effect of fountain can consumedly enhance the immersion characteristic of virtual reality system,which has been widely used in visual simulation system,computer game,3D animation and so on.Particle system is an effective method in fountain simulation.At present,some fountain simulation methods are confronted with the phenomena such as complex calculation in implementation,huge numbers of particles,time-consume and low reality in image.The basic idea of the method is to simplify the state of motion and render methods of the particles.By using equably accelerated motion when applying the physics principles to simulate the movement trajectory of the particles,it can achieve this effect.Also it uses the color blending to draw the particles.At last,making use of tools such as VC and OpenGL,it simulates the fountain effect.The result of the simulation demonstrates that the method is simple to implement and can meet the requirements of real time and reality.