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After Effects with Pro Res 4444

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Matthew Rundell
After Effects with Pro Res 4444
on May 17, 2012 at 11:04:06 pm

Working with Arri Alexa footage. I can pull in the footage and comp just fine. But when running the file our of AE through the render que, I get this error: output color depth exceeds project color depth. I say ok and it will render. My in is Pro Res 4444 and my out is the same. If I render as Animation, I don't get this error/warning. But I've been asked to render back as the Pro Res 4444. The footage looks fine. Any ideas on why the error? And is it a big deal really?

Matt Rundell


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Andy Galloway
Re: After Effects with Pro Res 4444
on May 18, 2012 at 7:40:59 am

Hi mate,

We use the same Alexa workflow and you get that error message because your project is set to 8 bit.

Below the project bin on the left is a button called 8bpc click on this and change it to 16bpc and your done.


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Matthew Rundell
Re: After Effects with Pro Res 4444
on May 18, 2012 at 5:38:10 pm

Thank you! That works. By the way, why not set it to 32 bit? Thanks regardless.

Matt Rundell


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Andy Galloway
Re: After Effects with Pro Res 4444
on May 18, 2012 at 5:45:12 pm

I think Alexa shoots at 12 bit Pro Res 4444 so 16bit already exceeds the colour depth of the footage even though I guess it would do know harm to set the project to 32bpc.

Also are you using LOG C? If so you can apply a LUT to the layer to get a fair approximation of colour which is really helpful if the footage hasn't been graded.


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Matthew Rundell
Re: After Effects with Pro Res 4444
on May 18, 2012 at 6:08:49 pm

Yes, we are LOG C. In Avid during the off line we've been using a curves adjustment to give us an adjusted look. As far as the comps go, I'm comping without an adjustment layer (or no LUT for color).

Matt Rundell


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Andy Galloway
Re: After Effects with Pro Res 4444
on May 18, 2012 at 7:05:01 pm

I was comping using LOG C for a bit as well but it's well worth applying a LUT to an adjustment layer at the top of your layer stack in my opinion.

You can generate one here.

http://www.arri.de/camera/digital_cameras/tools/lut_generator/lut_generator...

The effect to apply it is in utility effects then you can just turn the adjustment off before you export.

Much nicer to comp with than untreated LOG C.


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Matthew Rundell
Re: After Effects with Pro Res 4444
on May 18, 2012 at 7:41:03 pm

I have the .lut. Where do I put in so it can get into AE?

Matt Rundell


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Andy Galloway
Re: After Effects with Pro Res 4444
on May 18, 2012 at 7:54:33 pm

Effect>Utility>Apply Color LUT

Then you will be asked to load the LUT file you generated.

When you made the LUT be sure that you chose After Effects then you're away.


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Matthew Rundell
Re: After Effects with Pro Res 4444
on May 18, 2012 at 9:27:30 pm

Thanks.

Matt Rundell


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Erik Lindahl
Re: After Effects with Pro Res 4444
on May 21, 2012 at 2:54:22 pm

Another trick is making your adjustment layer a "guide layer". You do this by right-clicking on your adjustment layer choosing "Guide Layer". This way you will see its effect while you work in AE but it won't render out when outputting the comp to file.


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jonathan alenskas
Re: After Effects with Pro Res 4444
on Feb 5, 2014 at 11:58:33 am

hi...the problem im having with this is that you cannot correctly apply the LUT generated from ARRI website in a linearized comp. it has to be 32 bit with no color space.

this means you cannot properly comp multipass CG layers etc.

how are you guys setting up your project color space ?

i really need help so if you could please detail the full process it would be a great help. right now i am following this...

http://wicuslab.com/working-with-arri-alexa-logc-footage-in-adobe-after-eff...


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