OpenGL 模型绘制实例,实现线框正四面体，实体正四面体，线框正八面体，实体正八面体，线框球面，实体球面，线框茶壶，实体茶壶，线框球面线框圆锥面，线框圆环面绘制-Examples of model rendering OpenGL realize wireframe tetrahedron, the entity tetrahedron, octahedron wireframe, solid regular octahedron, wireframe sphere, spherical entity, wireframe teapot, teapot entity, wireframe sphere wireframe conical surface, wireframe torus draw