Re: Perfly on Performer Town

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Allan Schaffer (allan++at++southpark.engr.sgi.com)
Tue, 13 Oct 1998 17:37:23 -0700 (PDT)

On Oct 14, 9:55am, Brian Corrie wrote:
> I have noticed a very strange "feature" when using Perfly on our Onyx2, 6.5,
> Performer 2.2.1. When I start up perfly with the town database, it starts
> up fine but when everything is loaded and I try to "drive" forward the view
> I get is skewed slightly. That is, it appears as if I am looking out the
> front left of my "windshield" instead of out the front, alhtough I am
> driving in the direction I would expect (straight forward). The same happens
> for the cuevadefuego demo from the Friends CD. Unfortuantely, we don't have
> any other 6.5 machines with 2.2.1 so I can't determine whether or not it is
> a 2.2.1 thing, a 6.5 thing, or an Onyx2 thing...

Sounds like you're only seeing the left side of a multi-channel
output. Are you running perfly under a 2-channel 1280x1024 video
combination? (ie, 2580x1024, 2 channels at 1280x1024 each)?

By default the perfly window comes up full-screen, so if you were
running the above config but only had one monitor plugged in, you'd
see the "skewed" result you describe.

Run /usr/gfx/gfxinfo to check it out. If there's more than one
channel, then use ircombine (or setmon -x 60) to switch back to a
single-channel video combination. You'll need to save to the EEPROM
and restart graphics for the change in managed area size to take
effect.

Allan

-- 
Allan Schaffer                                                allan++at++sgi.com
Silicon Graphics                               http://reality.sgi.com/allan

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