OpenGL的glu库提供了以下类型的二次曲面绘制，使用C语言来实现，主要有圆柱体，圆锥，球体，碟盘和部分同心圆。是初学opengl的很好的例子。-OpenGL-glu library provides the following types of secondary surface rendering, using the C language to realize, there are cylinders, cones, spheres, discs and some concentric