How do you determine when an object is drawn on-screen in OpenGL?
- by Harry
I'm extremely new to OpenGL. I'm writing a program that displays flying text on screen. I need to know when certain text string appears (drawn) onto the screen and are visible to the user. The program needs to identify which text strings are displayed.
At first, I started to think that I could use OpenGL's picking mechanism, but so far I've only…