用opengl编制的可实现三个点，一个三角形，一个三角形平面和一个四边平面，一上立文体和一个多边形，圆柱体圆椎体，茶壶旋转-Opengl prepared can be used to achieve the three points, a triangle, a triangle plane and a four-plane, one on legislation and a stylistic polygon, circular cylindrical vertebral body, rot