本程序生成了无风状态下的烟，并能够通过键盘控制烟尾得走向，效果较好。希望和大家一起交流学习。-the procedures generated wind under the smoke, and through the end of the keyboard to control smoke in the direction of better results. We hope and studying together.

风车转动的图形用opengl实现 可以用鼠标控制风车转动的速度-windmills rotating graphics using opengl mouse can be used to achieve control of the rotational speed of the wind turbine