ccoprrm@prism.gatech.EDU (Robert E. Minsk) (02/26/90)
I am working on an IRIS 120GTX with a Genlock board running 3.2 and have the
following problem. For some reason when I am using the Genlock with de3 set to
RS 170 changing entries in the colormap table do not work correctly, without
Genlock it works fine. I copied the code directly out of cg2.c to change the
mode.
To see an example of what I'm talking about (only if you have a Genlock board
with a TV attached) run /usr/4Dgifts/examples/video/cg2 and while in Genlock
mode run /usr/demos/old/light (light makes heavy use of the colormap.) Is
there a way to work around this problem without going to rgbmode?
--
Robert E. Minsk - Office of Computing Services | Save the whales... |
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Georgia Institute of Technology, Atlanta Georgia, 30332 doelz@urz.unibas.ch (Reinhard Doelz) (02/26/90)
I have encountered exactly the same problem on PAL. It has been reported to SGI (Switzerland) without anything happening yet. *workaround*: Do a quick switch to the standard (console) 60 HZ video, define your color- map, and go back to NTSC. The colormap is apparently written only if you are in standard video mode. The switching proves to work with home-made software but is certainly not applicable if you don't have source on hand. Reinhard