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3D Vision Glasses Sync

 
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tschaeikaei




Joined: 08 Apr 2013
Posts: 489
Location: Germany/Saarland


PostLink    Posted: Sat Jan 04, 2020 2:14 pm    Post subject: 3D Vision Glasses Sync Reply with quote


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Hey,

i finally have my Marquee blend working using two 9500 U, GTX480--> Quadro 6000, nvidia 3d vision with shutterglasses , mosaic and immersive display pro. 2236 x 1080 x120 (139kHz) and very short vertical retrace timings.
Projectors work fine with these settings.

Everything is great, except a ghosting issue. On the lowest 10% of the image, the stereo separation does not work.
-->Glasses switch too early.

My attempt was using a µC to delay the sync pulses for the glasses about a ms, fine tuning expected.
But if someone here tells me that there is an easier option for it, i'd be very thankful.

Sure, it would be possible to use a GTF based timing, but i guess that would not be great for the Marquees, since i'm stretching the "130kHz max " that VDC gives already to 139kHz.
And honestly, i'm glad that i'm done setting up the projectors and software. No need to go that road again.
My hope is to find some hidden features in the nvidia 3d vision driver to delay the glasses sync pulse.

best regards, Julian

_________________
Marquee 9500U edgeblend P43 | NEC 9PG
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Zebra




Joined: 02 Jul 2020
Posts: 86
Location: NJ USA


PostLink    Posted: Fri Mar 01, 2024 7:06 pm    Post subject: Re: 3D Vision Glasses Sync Reply with quote

I know this thread is old but did you ever get this set-up working for 3d blu ray movies?



tschaeikaei wrote:
Hey,

i finally have my Marquee blend working using two 9500 U, GTX480--> Quadro 6000, nvidia 3d vision with shutterglasses , mosaic and immersive display pro. 2236 x 1080 x120 (139kHz) and very short vertical retrace timings.
Projectors work fine with these settings.

Everything is great, except a ghosting issue. On the lowest 10% of the image, the stereo separation does not work.
-->Glasses switch too early.

My attempt was using a µC to delay the sync pulses for the glasses about a ms, fine tuning expected.
But if someone here tells me that there is an easier option for it, i'd be very thankful.

Sure, it would be possible to use a GTF based timing, but i guess that would not be great for the Marquees, since i'm stretching the "130kHz max " that VDC gives already to 139kHz.
And honestly, i'm glad that i'm done setting up the projectors and software. No need to go that road again.
My hope is to find some hidden features in the nvidia 3d vision driver to delay the glasses sync pulse.

best regards, Julian
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tschaeikaei




Joined: 08 Apr 2013
Posts: 489
Location: Germany/Saarland


PostLink    Posted: Wed Mar 06, 2024 7:28 am    Post subject: Reply with quote

Hi,
the setup already was working in 2020 like written above.
If your question is about the ghosting issue: yes, we used an arduino to delay the sync pulses,
so we could solve that too.
Regards, Julian

_________________
Marquee 9500U edgeblend P43 | NEC 9PG
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