I got some problem with the window buffering. Please look at the following pictures:
File comment: The original and correct one
Screenshot-1.png [ 130.34 KiB | Viewed 591 times ]
File comment: Window generated by me
Screenshot.png [ 154.08 KiB | Viewed 591 times ]
What I want to do is to extract the DynamicControl Demo and develop further controller on it.
Any idea on why this happens ? I think it is something related with GL/GLU/GLUT, but not familiar with that.