Setting r3 gamma
30-Oct-93 19:25:53
Sb: #64251-Setting r3 gamma
Fm: David Stinnett 70214,774
To: John Ellis 72440,3046
John,
I've been following this and have tried only using Tmode 11
(after removing a Tconfig batch from my autoexec.bat and rebooting)
but something's still goofy. Setting the framebuffer gamma to 2.1
gives me the best results, and this is what I've got it set at
presently. The outer box at 2.1 is dark gray and the inner box is a
much lighter gray. If I slide it down to 1.0 they get closer, but the
inner box is still a lighter shade than the outside. When I set it to
1.0 and view various renderings, the images are much too dark.
The targa is going straight to an RCA colortrac NTSC monitor
with an S-video hookup. Is it possible that the monitor is doing some
sort of gamma correction on its own? I don't have time at the moment
to pay too much attention to this, but I'll be taking some major time
off starting in a few days, so I'll do some fiddling then (trying
different monitors, laying stills to tape to compare output, etc.).
Until then I'll keep my eyes open here. Thanks for your help.
David
P.S. Is anyone else still having trouble matching those annoying
little squares? The display gamma squares match perfectly at 1.8, but
even though the framebuffer output looks great, something in the back
of my head says somethings not right if I can't get a match!