在OpenGL中绘制简单的3D世界，并在其中漫游-In the draw simple 3D OpenGL world, and in which roaming

opengl实现简单的3d漫游功能，其中还有纹理、、键盘、灯光等处理。 ，经测试可直接使用。-opengl simple 3d roaming function, of which there are textures, keyboard, lighting and other processing. Has been tested and can be used directly.