[PD] Gem server and client solution

Csaba Láng langcsaba at gmail.com
Tue Jun 23 20:10:48 CEST 2015


Thanks Py.

Now it is 30fps, and works smooth. Wanted to have antialiasing but that was
already too much for the processors.
Latency, hmm I do not know. Let me know how I could measure it.

Popesz

On Mon, Jun 22, 2015 at 11:01 AM, Py Fave <pyfave at gmail.com> wrote:

> nice setup!
> what is the frame rate?
>
> and latency?
>
> thanks
>
> py
>
> 2015-06-20 13:08 GMT+02:00 Csaba Láng <langcsaba at gmail.com>:
>
>> Dear list,
>>
>> just wanted to inform you that I managed to have 2x12 fullHD screens
>> connected and controlled by GEM.
>> With 2 Mac Pro and 6 Datapath x4 4K external graphic cards works smooth.
>> It is not visible from the picture, but these squares are cubes, which
>> revolves when someone gets into interaction with the motion sensors.
>> The result is in the attachment:
>>
>> [image: Inline image 1]
>>
>> No upscaling, no additional processor between the computer and the video
>> wall. Just smooth 15840x3240 real time rendered pixels.
>> Thanks for your ideas and help during the process.
>>
>> Best:
>>
>> Popesz
>>
>> On Wed, Apr 29, 2015 at 8:36 PM, Jack <jack at rybn.org> wrote:
>>
>>> -----BEGIN PGP SIGNED MESSAGE-----
>>> Hash: SHA1
>>>
>>> Le 29/04/2015 13:15, IOhannes m zmoelnig a écrit :
>>> > On 2015-04-29 12:36, Csaba Láng wrote:
>>> >> Hi Iohannes,
>>> >>
>>> >> I just wanted to ask if according to you this approach is
>>> >> feasible with such a gemwin dimension [dimen 7680x3240(. And if a
>>> >> Mac Pro could handle it with 4-8 or 12 core processor.
>>> >>
>>> >
>>> > I'm not very learned when it comes to apple, so I cannot give an
>>> > authorative answer your question.
>>> >
>>> > anyhow: the number of cores are probably not very relevant here, as
>>> > most of the work is done by the GPU. a resolution of 7680x3240 does
>>> > not seem very high for nowadays standards.
>>> >
>>> > the maximum texture size (which is the relevant spec here) for
>>> > modern cards should be at least 8192x8192 pixels (e.g. my intel
>>> > gfx-card on my lenovo x230 supports 8192x8192; my quite old (~10
>>> > years) nvidia GeForce 7800GTX would support only 4096x4096; what i
>>> > here from the new nvidia GTX980 it should have a maximum texture
>>> > size  of 65536x65536 pixels).
>>>
>>> About the NVidia GTX980, what does it mean :
>>> Maximum Digital Resolution* : 5120x3200 ?
>>> this is on :
>>> http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-980/specificati
>>> ons
>>> ++
>>>
>>> Jack
>>>
>>>
>>> >
>>> > gmfsdr IOhannes
>>> >
>>> >
>>> >
>>> > _______________________________________________
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>>> >
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>>
>>
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