   openglut flickering
  Hi all:So, I am using openGlut for all my window management, and, I thought that one of the givens for openGlut was that you don't get any flickering etc.However, I am drawing some lines in 2d, and, I see a steady flickering across those lines.  What is going on?Thanks a lot,J   
  Firstly, make sure your double-buffering is correct. If you have double-buffering, you should be calling "swapBuffers()" once per frame. If not, you shouldn't be calling that at all. Note: Linux doesn't have double-buffering as default, like Windows. You need to  have the flag "GLUT_DOUBLE" as a flag in the windows creation call to allow that.For any more detailed information, I'll (we'll) need to see your code.   ;  Thanks a lot, I think i may have solved the problem... I was calling the render function too often, and i think pretty much everything on my system was flickering.  Thanks!   