[Flightgear-users] Querying OpenGL state (?)

[Sundeep Tirumalareddy]

I am trying to run openGL apps on a multi-projector display wall. To 
ensure color uniformity across all the projector displays, I apply an 
alpha mask on the frame buffer just before glutSwapBuffers calls in the 
source code.

This does not seem to work with FlightGear: the screen blacks out. I 
know it is not a problem with my masking function as it works with other 
(albeit simpler) openGL apps like Atlantis.

The only way I see this happening is if my masking function changes the 
openGl state in someway which affects FlightGear. However, I am saving 
and restoring the state using glPush/PopAttrib in the masking function.

Am I missing something? Also, does anyone know of a way to query the 
openGL state (all the variables) in FlightGear (or any openGL app for 
that matter)?

Many thanks
Sundeep
_______________________________________________
Flightgear-users mailing list
[EMAIL PROTECTED]
http://mail.flightgear.org/mailman/listinfo/flightgear-users