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Render ends when I switch to another application

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Matthieu Foulet
Render ends when I switch to another application
on Apr 16, 2014 at 1:41:36 pm

Hi there,
I have an unexpected issue when I launch a render in AE.

The render stops (no crash, I here the little ending melody) whenever I launch it and switch to any other application (to keep on working on something or to go procrastinating on reddit) !

I am running the latest build of After Effects CC, with multiprocessing on, using a PNG sequence render setting, on an Full HD composition, with no 3rd party plugin used.

Any thoughts ?

MacPro 8Core 2.8Ghz (Early2008) //
16GB OWC RAM //
ATI Radeon HD5770 1Go //
OS X.9.2


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Dave LaRonde
Re: Render ends when I switch to another application
on Apr 16, 2014 at 10:31:23 pm

Use a different computer to do other things while AE renders. You get used to it.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Matthieu Foulet
Re: Render ends when I switch to another application
on Apr 16, 2014 at 11:26:45 pm

Can you mail me a few thousand bucks so that I can buy a second computer ?
THAT would be helpful.

MacPro 8Core 2.8Ghz (Early2008) //
16GB OWC RAM //
ATI Radeon HD5770 1Go //
OS X.9.2


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Tyler Hurst
Re: Render ends when I switch to another application
on Apr 16, 2014 at 11:44:49 pm

Mac OSX Mavericks has a feature called App Nap where it stops powering any application that isn't immediately in front of it. Here's an article about it
http://www.tekrevue.com/tip/disable-app-nap-os-x-mavericks/

All you need to do is click get info on the application and "prevent app nap"


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Matthieu Foulet
Re: Render ends when I switch to another application
on Apr 17, 2014 at 8:00:46 am

I didn't know about app nap, I will look into that.

MacPro 8Core 2.8Ghz (Early2008) //
16GB OWC RAM //
ATI Radeon HD5770 1Go //
OS X.9.2


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Dave LaRonde
Re: Render ends when I switch to another application
on Apr 17, 2014 at 3:02:26 pm

Got a smart phone?

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Matthieu Foulet
Re: Render ends when I switch to another application
on Apr 17, 2014 at 3:03:42 pm

Sure, but I can't find a good editing app for it ;)

MacPro 8Core 2.8Ghz (Early2008) //
16GB OWC RAM //
ATI Radeon HD5770 1Go //
OS X.9.2


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Tero Ahlfors
Re: Render ends when I switch to another application
on Apr 17, 2014 at 6:16:56 am

[Matthieu Foulet] "with multiprocessing on"

You're probably running out of RAM when you're using other applications when rendering. That will stop the render.


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Matthieu Foulet
Re: Render ends when I switch to another application
on Apr 17, 2014 at 8:04:09 am

That's what I thought because the issue does not occur with multiprocessing turned off.

I will tweak my settings to see if I can get rid of the problem.

MacPro 8Core 2.8Ghz (Early2008) //
16GB OWC RAM //
ATI Radeon HD5770 1Go //
OS X.9.2


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