Remi Arnaud (remi++at++remi.asd.sgi.com)
Thu, 24 Oct 1996 14:16:17 -0700
--- Forwarded mail from knoepfle++at++igd.fhg.de
From: knoepfle++at++igd.fhg.de
Date: Thu, 24 Oct 1996 18:03:35 +0200
To: info-performer++at++sgi.com
Subject: Genlocking...
Hy everybody,
this is not a performer-question, but I don't know a better a place...
We want to use Shutter-Stereo on a 3-Pipe ONYX IR (format: 1024x768_120s).
We
get the stereo-sync from Pipe 0. When you wear your stereo-glasses the
picture
on Pipe 0 is ok, but on pipe 1 and 2 we see a horiz. dark bar [shutter
signal
doesn't correspond to vertical sync of the pipe].
It seems that we have to genlock(!) all three pipes. We tried several ways,
but
none of them really worked.
Yes, you need to genlock. Patch 1355 should be installed to get good results
(it
has a fix that lets our monitors sync without power-cycling the monitor).
Does anyone of you know how to do
a) the cabeling
H/C sync output from pipe 0 -> genlock in on pipe 1
genlock out from pipe 1 -> genlock in on pipe 2
genlock out from pipe 2 terminate with a 75Ohm terminator (not the same as a
50Ohm network
terminator!)
b) configuration via ircombine [unfortunatelly we can't use setmon, because
it
crashes on pipe 1 and 2 :(]
With patch 1355, ircombine on pipe 1 should automatically select Horizontal for
the sync output of the channel you're using as the stereo timing master. This
setting should be left as-is (stereo and some field-sequential formats actually
output a serrated csync signal as their hsync output, which is needed for
proper
genlock). The other two pipes should have their global settings set to external
sync, with the stereo format specified as the sync format.
P.S. What exactly do you type to crash pipes with setmon?
to genlock all three pipes ?
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