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Still unable to render scenes with lights after 16 GB ram upgrade

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maha mohtaseb
Still unable to render scenes with lights after 16 GB ram upgrade
on Jun 6, 2012 at 7:36:32 pm

I just upgraded to 16 GB on my macbook pro, and I'm seeing a huge improvement in speed/performance. However I'm still unable to render out a Comp that contains lights. I'm trying to export a 10 second Comp that uses 3 point lights (all of the objects accept light and cast shadows). In my comp there are 15 or so Collapsed precomps, and some text. When I go to render, the render queue says about 25 hours for a 10 second render (but there's no progress at all). Does anyone have a suggestion or know a way around this issue? Thanks in advance!

My MBP:

Processor Name: Intel Core i7
Processor Speed: 2.3 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 8 MB
Memory: 16 GB

Screenshot of my Video/Multiprocessing settings-

4252_screenshot20120606at3.10.58pm.png.zip


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Brian Charles
Re: Still unable to render scenes with lights after 16 GB ram upgrade
on Jun 6, 2012 at 8:56:31 pm

I suspect something other lack of RAM is the issue.

I have no trouble rendering with many lights on my MBP i7 also with 16 GB, nor on my MBP Core 2 with 8GB of RAM.

Its slow but not 25 hours. Check your Comps, what else have is going on, effects, dimension of footage, dimensions of final render, output module etc.

I'm pretty certain it isn't the lights.



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maha mohtaseb
Re: Still unable to render scenes with lights after 16 GB ram upgrade
on Jun 11, 2012 at 11:04:44 pm

Hi Brian,

Thanks for your input, I'm not really using much effects- The collapsed precomps contain mainly shape layers, text, and 1 or 2 vector artwork layers. Almost all layers in the main comp have an opacity of less than 100%. The 3 point lights have diffused shadow darkness, and all objects cast/accept shadows. All 3d layers in the main are motion blurred. I also have one adjustment layer at the very top using Magic Bullet Looks, but that's about it for effects.

You've mentioned "I have no trouble rendering with many lights on my MBP i7 also with 16 GB, nor on my MBP Core 2 with 8GB of RAM." Do your objects usually cast/accept shadows? I'm starting to think this problem's caused by layers accepting/casting shadows.

I still havent figured out a good render solution, but still doing different render tests.


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