Neil Williams (neil.f.williams++at++gecm.com)
Thu, 24 Jul 1997 17:37:56 +0000 (GMT)
Apologies if I've asked this question before. The problem has been around for
some time and I can't remember whether I posted it.
I'm using an Onyx VTX to produce a Performer visuals output of 770x576_25i out
of the graphics terminal connection using 'setmon'. A genlock signal is input
into the Onyx in order to sync the output picture to some external equipment.
The problem is that this external equipment (part of a Navy Trainer) can stop
and start its genlock at any time. The output picture remains steady following
this, but is wrapped round horizontally ie the left hand side of the picture
can appear anywhere (randomly) across the screen. The only way I've found to
cure this is to restart the graphics (stopgfx, startgfx) and restart my visual
simulation (undesirable).
Can anyone suggest a cure for this? Alternatively, is it a possibility that I
can leave the graphics in 1280x1024_60 mode and attach an external box of
electronics that will take a portion of the screen and produce a genlocked PAL
video output from this? (I've seen a similar thing done on an RE2 using
'vout'). If so, is it possible to get it to map two windows of the screen to
two seperate genlocked PAL outputs?
Thanks
=======================================================================
List Archives, FAQ, FTP: http://www.sgi.com/Technology/Performer/
Submissions: info-performer++at++sgi.com
Admin. requests: info-performer-request++at++sgi.com
This archive was generated by hypermail 2.0b2 on Mon Aug 10 1998 - 17:55:38 PDT