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Multiprocessing Settings and 32 bit renders

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Brandon Morris
Multiprocessing Settings and 32 bit renders
on Sep 7, 2011 at 6:01:53 pm

First off, is it possible to render out an mov in 32bits instead of a PSD sequence?
Or is it possible to set a post-render action to transcode the PSD sequence to a ProRes HQ 16bit mov?

And what should I set my RAM and CPU at for the Multiprocessing settings, I have a 12-core Mac Pro with 64GB of RAM.



Brandon Morris
http://www.brandonmorris.com

Canon T2i
13" Macbook Pro (Mid 09) 8GB RAM 10.6



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Walter Soyka
Re: Multiprocessing Settings and 32 bit renders
on Sep 7, 2011 at 6:22:26 pm

I'd render the image sequence, then use a post-render action to stitch the movie.

See Adobe's recommended memory settings for a starting point.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Brandon Morris
Re: Multiprocessing Settings and 32 bit renders
on Sep 7, 2011 at 7:22:28 pm

I don't see an option to stitch in post render, I only see the option to import the sequence into the project.
I was hoping to automatically export to a self contained quicktime of my choice.

I've looked at the Adobe recommended settings and looked elsewhere.
I was just curious for my CPU and RAM settings, what I should start out at for each settings.

Brandon Morris
http://www.brandonmorris.com

Canon T2i
13" Macbook Pro (Mid 09) 8GB RAM 10.6



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Dave LaRonde
Re: Multiprocessing Settings and 32 bit renders
on Sep 7, 2011 at 7:28:15 pm

The settings look pretty good to me, but you miss the gist of my question: why do you feel the need for a 32-bit media file?

They're certainly valid to make, but you have to remember that the maximum bit depth of any final-delivery file is 10-bit color. If you're only working in an 8 or 16-bit comp, it's fruitless to render 32-bit color; you get nothing extra.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Brandon Morris
Re: Multiprocessing Settings and 32 bit renders
on Sep 7, 2011 at 7:32:01 pm

I've been curious of how that is normally done with 32 bits rendered out and then broadcasted.

But for some projects, I made a firework display with particular and then added starglow.
In 32 bits, the glow was extremely better, even after I exported out as 32 bit psd sequence and converted to 16bit HQ ProRes.

Brandon Morris
http://www.brandonmorris.com

Canon T2i
13" Macbook Pro (Mid 09) 8GB RAM 10.6



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Walter Soyka
Re: Multiprocessing Settings and 32 bit renders
on Sep 7, 2011 at 7:34:11 pm

I usually select the comp I want to render, then add it to the render queue as a best-settings proxy image sequence. Then I add the comp to the render queue again, this time as a movie, with proxy use enabled.

I suppose you could alternately pre-comp your original comp. Add the original to the render queue as an image sequence with "Import & replace usage" as the post-render action. Add the pre-comp to the queue as a movie.

In both cases, AE will first render the comp as an image sequence, then read the sequence back in and render it as a movie.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Brandon Morris
Re: Multiprocessing Settings and 32 bit renders
on Sep 7, 2011 at 8:00:37 pm

That's genius!

Brandon Morris
http://www.brandonmorris.com

Canon T2i
13" Macbook Pro (Mid 09) 8GB RAM 10.6



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Dave LaRonde
Re: Multiprocessing Settings and 32 bit renders
on Sep 7, 2011 at 6:27:32 pm

[Brandon Morris] "...is it possible to render out an mov in 32bits instead of a PSD sequence?"

There are no 32-bit quicktime codecs available. The best you can do in Apple-Land would be ProRes 4444. But 99 times out of a hundred, ProRes 4444 is overkill.

Since I see that you shoot on a t2i, it definitely would be overkill. The camera itself only records 8-bit color, and all those extra bits aren't going to help reinvent colors that aren't there.

If you used the footage in a 32-bit comp and did glows, used blend modes, etc. you can keep a lot of the look by simply rendering to good ol' ProRes 422. You'll get the same look as you would in HQ or 4444, plus save yourself a lot of storage space in the process.




[Brandon Morris] "And what should I set my RAM and CPU at for the Multiprocessing settings, I have a 12-core Mac Pro with 64GB of RAM."

Have you read this?

http://blogs.adobe.com/toddkopriva/2010/10/please-try-recommended-memory-se...

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Brandon Morris
Re: Multiprocessing Settings and 32 bit renders
on Sep 7, 2011 at 7:27:21 pm

I haven't updated that signature in awhile, but we also shoot a lot of projects on the HPX170, HPX500, and the RED One, and soon the RED Epic & RED Scarlet. But I was really looking at in the sense of After Effects and Motion Graphics for things like Glows, Blurs, Gradients, etc. I usually use ProRes HQ 422, but things like Starglow look noticeably better in 32 bits.

I believe I've looked at that reference for the RAM, just curious what people here recommend for my settings.

Brandon Morris
http://www.brandonmorris.com

Canon T2i
13" Macbook Pro (Mid 09) 8GB RAM 10.6



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Dave LaRonde
Re: Multiprocessing Settings and 32 bit renders
on Sep 7, 2011 at 8:07:07 pm

[Brandon Morris] "...just curious what people here recommend for my settings."

It depends on what you're doing. Here are a couple of extreme examples:

AE can accommodate still images up to 30,000x30,000 -- if you wanted to work with a layer like that, requiring a lot of memory just to create the image, you'd cut way back on the number of processors, and give each one a lot more RAM.

If you were given a job involved in working with 640x480 footage in a 640x480 comp, you'd probably want to max out the number of processors... within reason, of course.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Walter Soyka
Re: Multiprocessing Settings and 32 bit renders
on Sep 7, 2011 at 8:12:26 pm

[Dave LaRonde] "f you were given a job involved in working with 640x480 footage in a 640x480 comp, you'd probably want to max out the number of processors... within reason, of course."

Todd Kopriva says there's a performance plateau around 8-10 threads:

http://forums.creativecow.net/thread/202/891262

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Darby Edelen
Re: Multiprocessing Settings and 32 bit renders
on Sep 7, 2011 at 9:59:30 pm

[Walter Soyka] "Todd Kopriva says there's a performance plateau around 8-10 threads:"

In my own use I've found the lowest common denominator to be lower, but that probably has a lot to do with the varied sort of work I'm doing. If I have time to tweak to find the right balance of processes to RAM usage for the project then I may save some much needed render time, but in my day to day work I usually cap the prefs at 4 processes with 2GB of RAM each.

I've found that the potential slow downs associated with getting these settings wrong outweigh the benefit of saving time by tweaking settings. The 4 process and 2GB of RAM amount to about a quarter of the computer's available resources, but it's the best I can do to keep things chugging along predictably :)

Darby Edelen


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