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From: Byron Nash <byronnash@gmail.com>
Date: Thu, 2 Feb 2012 14:09:55 -0500
Message-ID: <CANGV+5q8b=kyvFt8FOitviZVS4Pf6ePh75DBBwn2Ni-HcAkmMA@mail.gmail.com>
Subject: Inverse a LUT?
To: After Effects Mail List <AE-List@media-motion.tv>
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I was wondering if there is a way to inverse a LUT? I'm applying an Arri
Alexa LUT to some footage for VFX work. Some of the elements are graphics
that need to maintain their color with and without the LUT. We have been
using a LUT on an adjustment layer and then turning it off before rendering
it. That way our VFX should be in the correct ranges for Color Correction.
This works fine for source footage but as soon as you need to put a logo in
there it gets weird. I'd like to be able to put a reverse of the LUT on the
logo/graphics and keep all that under the Adjustment layer.  In the past we
have just sort of used levels and curves to approximate the graphics with
some success. But I'd like to do it the "right" way.


Hope that makes sense.

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I was wondering if there is a way to inverse a LUT? I&#39;m applying an Arr=
i Alexa LUT to some footage for VFX work. Some of the elements are graphics=
 that need to maintain their color with and without the LUT. We have been u=
sing a LUT on an adjustment layer and then turning it off before rendering =
it. That way our VFX should be in the correct ranges for Color Correction. =
This works fine for source footage but as soon as you need to put a logo in=
 there it gets weird. I&#39;d like to be able to put a reverse of the LUT o=
n the logo/graphics and keep all that under the Adjustment layer. =A0In the=
 past we have just sort of used levels and curves to approximate the graphi=
cs with some success. But I&#39;d like to do it the &quot;right&quot; way.=
=A0<div>

<br></div><div><br></div><div>Hope that makes sense.=A0</div>

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