一个利用OpenGL的编写的动态图形效果：两个球体围绕水银镜面圆球做不同半径的旋转，且两个球大小随旋转产生变换，背景生动有良好视觉效果-Prepared using OpenGL, a dynamic graphical effects: two balls of mercury around the mirror-ball do different radius of rotation, and the two balls the size of transformation with the