Mailing List AE-List@media-motion.tv ? Message #41339
From: Chris Meyer <chris@crishdesign.com>
Subject: Re: [AE] [OT] H264 Gamma Shift
Date: Tue, 20 Dec 2011 13:17:56 -0700
To: After Effects Mail List <AE-List@media-motion.tv>
That doens't always work, unfortunately.

The secret is to use x264, not h.264 (available from http://www003.upp.so-net.ne.jp/mycometg3/ - scroll down a few entries).


 - Chris


On Dec 20, 2011, at 12:33 PM, David Torno wrote:

I have found that H.264 outputs from QuickTime are too bright and the fix I use is to open the H.264 back in QuickTime, Bring up the Properties window (cmd+j), select the Video Track, select the Visual Settings tab, then change the Transparency dropdown to Composition. Save file.

David Torno
Visual Effects Artist & Supervisor
O: 213.739.2290
C: 818.391.6060
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On Dec 20, 2011, at 11:28 AM, adam mercado <adam@influxx.com> wrote:

I'm having a hell of a time trying to get a render off to my client that resembles to color shown in AE. Workflow is this:

PSDs imported and animated to 16bit comps (the artwork is a concrete texture with a black vignette over, lots of greys, blacks blending into each other)
Rendered to 16bit PhotoJPEG .MOVs (the masters look fine, no gamma shift at this stage but at 750MB too large to upload to client)
Encoded in Episode to H264 (blacks are crushed, all detail is lost, gamma is generally shifted darker)
Encoded in QuickTime to H264 (gamma is shifted lighter and reds are shifted towards blue)

I've tried playing with various options and settings in Episode, but any gamma compensated reverse shift I apply brightens the highlights but the blacks are still crushed. Playing with the QT export filters are really hit or miss with little effect.

Anyone come across this before and found a workaround? Or a better encoder. I had an old version of compressor at one time but removed it as it was so unstable and buggy and required a reinstall every two weeks.

At this stage I've resorted to trying to introduce the reverse gamma shift as an adjustment layer in AE prior to final render to compensate for the shift in Episode. So far I  have yet to find the sweet spot that solves the problem

many many thanks



 
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