Hello Mario, as Patrick already mentioned the power of the GPU is what matters. The problem having two graphic cards in one machine to drive three screens is, that the two graphics cards has to share textures memory and therefor big junks of memory have to be copied from one graphic card to the other via the internal bus. This may cause trouble depending on your composition. Thats where "Quartz Composer Visualizer" comes in. This application is able to playback your composition on multiple graphics cards (even on different machines) simultaneously. It creates multiple instances of your composition and keep them in sync. I think you have to take care that the composition is running deterministic. This said you can use three small machines with powerful graphic cards to run your composition as vs. using one big machine with two graphic cards.
I didn't tried this for myself yet, but Apple proofed for themselves with the AppStore Hyperwall that this works great: http://www.youtube.com/watch?v=A1Efq55VCqE&feature=related best, Achim Breidenbach Boinx Software On 17.05.2012, at 18:46, Patrick Sheffield wrote: > Quartz Composer uses the Graphics Card almost entirely, so benefits little > from multiple cores. The advantage, of course, of a Mac Pro is that you can > put an awesome graphics card in it... > > Patrick > > On May 16, 2012, at 11:39 PM, Mario Marquez wrote: > >> Hi everyone. >> I am thinking on buying a 2.26ghz x2 quadr core (octo). This is the 2009 mac >> pro. I am getting a good discount. So i am wondering if quartz composer >> benefits from the eight cores. I have read that some apps don't use all the >> cores. >> I am looking to use it for live video performance with three monitors >> >> Thanks in advance >> >> Mario >> >> >> >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) >> Help/Unsubscribe/Update your Subscription: >> https://lists.apple.com/mailman/options/quartzcomposer-dev/psheffield%40earthlink.net >> >> This email sent to psheffi...@earthlink.net > > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/quartzcomposer-dev/achim%40boinx.com > > This email sent to ac...@boinx.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
