   Bitmap drawing
  What is the fastest way to draw bitmap on screen with OGL?Can anyone give me example.Thanks.   
  Texture a quad.   ;  Is that the smartest way? That was in my plan,and that will I do.But what if I want to change pixels in realtime? (image from webcam for example)   ;  Create a standard OpenGL texture that is the dimension of your webcam feed. Set up your filtering as per normal.However, when you receive a new frame from your webcam just use glTexSubImage to replace the data in the Texture rather than destroying and recreating the texture every frame.I have done a similar thing for movie animation and it works well.   ;  Guy's you are nice. Thanks for help. p.s.cya soon I will probably have more problems in future. ;)   