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What output settings to preserve HDR information?

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Seth Marshall
What output settings to preserve HDR information?
on Nov 11, 2012 at 3:21:22 am

My understanding is using 32bpc maintains HDR information while working within AE, but if I need to export for another program (or to keep an archive at that stage) what output settings should I use.

Until now I thought Animation 100% was the way to go but I've recently heard Animation brings everything down to an 8-bit space. Is this true? If so, would ProRessHQ be the best (I do not want to go uncompressed).

thanks


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Chris Wright
Re: What output settings to preserve HDR information?
on Nov 11, 2012 at 4:54:08 am

tiff, openexr,radiance,photoshop sequence psd, all support 32bpc/float.
You can buy video codecs with 32bpc too.
I think openexr has the smallest size and psd has the largest.

Openexr and tiff are the most compatible with software.

The only issue I had was openexr shifting subtle pixel values which is kind of hilarious because ILM created it. I went from 0,16,49 to 0,15,50 to 1,16,50 in only 3 generations. ack!

I personally only use tiff with lzw compression off.
Don't forget that dynamic link works in 32bpc.


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Todd Kopriva
Re: What output settings to preserve HDR information?
on Nov 16, 2012 at 10:48:42 pm

Chris, would you mind filing a bug report about those shifting values with OpenEXR? That sounds like something that we need to fix.

You can submit bug reports here: http://adobe.ly/ReportBug

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Todd Kopriva, Adobe Systems Incorporated
After Effects quality engineering
After Effects team blog
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