关于OpenGL 3D编程，实现摄像机漫游。实现以鼠标的转向来使整个场景旋转漫游，对3D游戏编程者有很好的借鉴作用。-About OpenGL 3D programming, realize roaming camera. In order to realize the mouse turned to rotate the entire scene roaming, on the 3D game programmers have a very good reference.