Introduction - If you have any usage issues, please Google them yourself
OpenGL programming, shows a ball, requirements : 1. Use wireframe map; 2. layout of the latitude and longitude of 15 degrees; 3. manually calculate coordinates, and not to use glutWireSphere; 4. Suggested use vertex arrays, and only once the coordinates; 5. A and D keys rotating around 5 degrees, W, S bond next five degrees rotation