From: Ran Yakir (rany++at++rtset.co.il)
Date: 03/16/2000 04:37:54
Gary,
I don't think that the Vsync plug is going to make it for you. In factI
don't know wat it does there altogether (unlike the vsync on the good old
Onyx1/IR).
What you need as you genlock signal is the vsync signal from one of the
channels on pipe 0, or an external signal from an video sync generator, used
in the broadcast industry.
In addition, I haven't been able to sync on the 1280x1024 signal. What works
for me is an NTSC or PAL signal, acheived via the 640x486_30i.vfo or
768x576_25i.vfo formats, respectively. To do so, you can define a channel
with the right format on pipe 0, and use it's output as the sync signal.
Ran
Gary Quinn wrote:
> Hi Performers.
>
> I have a problem with genlocking
> not working, on our 3 pipe IR2 ONYX2.
>
> On the back, I have cables from....
>
> Pipe 0 Channel 0 Vsync to pipe 1 genlock in
> Pipe 1 genlock out to pipe 2 genlock in
> Pipe 2 genlock out terminated.
>
> Also,
>
> Pipe 0 swap ready to pipe 1 swap ready (Tee piece)
> connected to pipe2 swap ready.
>
> In ircombine, I have set pipe 0 globals
> set to internal sync source,
> and pipes 1 and 2 set to external sync source
>
> Sync format on all three pipes is 1280x1024_60.vfo
>
> perfly -M1 reports....
>
> 39919 PF
> 39919 PF Info: Initialized 3 Pipes
> 39919 PF
>
> ...
>
> 39996 PF Debug: Query of video rate returns 60.00Hz for
> chan 0 on screen 0.
> 39996 PF Debug: Query of swap buffer rate returns 60.00Hz
> for chan 0 on screen 0
> 39996 PF Notice: Using 60Hz video rate.
>
> ...
>
> 39996 PF Debug/Resource: Screen 1 is phase-shifted 0.933120
> degrees from master screen 0.
> 39996 PF Debug/Resource: Screen 2 is phase-shifted 1.797120
> degrees from master screen 0.
>
> We have had an SG engineer look at the back of the machine,
> who couldn't see a problem - he was a hardware
> guy, not a graphics expert.
>
> The problem has persisted through IRIX versions 6.4 upto 6.5.6.
> It happens with our in house performer app, and with
> a third party piece of software.
>
> Are the pipes connected correctly ? Is there some
> software or ircombine thingy that I have to do ?
>
> Cheers,
> Gary.
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