David,
We have a checken and egg problem here. We can query the depth buffer
bits. But we can't do that until the display is init'd and we already
have a valid opengl context. But, we need to know this info in order
to do the glut intialization properly.
????
We may need to fall back to a command line option and have the user
tell the application what to do.
Curt.
David Megginson writes:
> Curtis L. Olson writes:
>
> > Mark Harris mentioned that the back buffer requires a "destination
> > alpha" for imposter rendering to work. Perhaps that's why things
> > aren't great with a 16bit color buffer, you probalby aren't even
> > getting an alpha channel there?
>
> That's possible, but currently the problem is that FlightGear will not
> start at all at 16bpp with --enable-clouds, because of this:
>
> if ( fgGetBool("/sim/rendering/clouds3d") ) {
> glutInitDisplayMode( GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE | GLUT_ALPHA );
> } else {
> glutInitDisplayMode( GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE );
> }
>
> Here's what I get:
>
> GLUT: Fatal Error in fgfs: visual with necessary capabilities not found.
>
>
> All the best,
>
>
> David
>
> --
> David Megginson, [EMAIL PROTECTED], http://www.megginson.com/
>
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--
Curtis Olson IVLab / HumanFIRST Program FlightGear Project
Twin Cities [EMAIL PROTECTED] [EMAIL PROTECTED]
Minnesota http://www.menet.umn.edu/~curt http://www.flightgear.org
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