Introduction - If you have any usage issues, please Google them yourself
Rover program
1, draw a proper three-dimensional objects and scenes (optional) 2 to achieve roaming camera: up and down through the mouse to move the camera around, or through the keyboard keys (or up, down, left and right arrow keys ) to move the camera all around 3 to achieve the camera looking around: Adoption of the mouse or keyboard, rotate the camera to look around, as well as about inspections up look up and down overlooking such an operation.