[PD] Gem server and client solution

Cyrille Henry ch at chnry.net
Mon Apr 27 18:31:04 CEST 2015

the aim is not to render the image on the server and distribute part on the client, but to distribute the openGL rendering on the many client.

maybe somthing like chromium could help :
but i never tried it, I have no idea of how texture sharing, or multi pass rendering can be created with this kind of system.

An other solution is to render exactlly le same pacth on every client. the only diference is a "camera" message to the gemwin.


Le 27/04/2015 18:09, Antoine Villeret a écrit :
> yes it is, BUT the bottleneck will be the -- as often -- the readback.
> Once you create a 7680x3240px texture you need to read it back from the GPU to the host memory to send it to other.
> There are several ways to do that and without GPU texture compression I'm pretty sure you can't achieve more than 1 fps at this resolution even with the more expensive graphic card you can use gem with.
> Concerning hardware texture compression, you may be interested in HAP codec (though I don't know if live encoding is available) and nvenc technology.
> I think there is an embryonal external for the former but don't know any work in Pd with the latter.
> so yes it is possible (like everything) but it's a huge challenge and I'll be happy to read how you achieve it :-)
> +
> a
> --
> do it yourself
> http://antoine.villeret.free.fr
> 2015-04-27 17:28 GMT+02:00 Csaba Láng <langcsaba at gmail.com <mailto:langcsaba at gmail.com>>:
>     Dear list,
>     is it possible to create a media server with Gem, so I can create on the server a resolution of [dimen 7680x3240(, and through network send to each client one part of the Gem window, so I can have a resolution on a 4x3 matrix video wall with fullHD for each display.
>     Thanks in advance!
>     Popesz
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