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sgiuser
08-14-2001, 06:34 AM
Hi,
Ima new to this openGl, can I display graylevel images using glDrawPixels?
or it has to be RGB
thanx
mikael_aronsson
08-14-2001, 08:29 AM
You can use GL_LUMINANCE mode with glDrawPixels.

Mikael
john
08-14-2001, 03:10 PM
Mr User Of SGI machine,

maaybe... just MAYBE you need to spend a ~little~ more time checking out the chapters in the red book on drawing images. This question, your other poster re: raster pos is all trivially answered in the red book. These questions aren't a combination of ideas, where you might have a bug, but "atomic ideas" described in..
the
red
book

just a thought.

cheers,
John