From: "Timothy Sassoon" <AE-List@media-motion.tv>
Date: Wed, 8 Aug 2018 23:21:41 -0700
To: After Effects Mail List <AE-List@media-motion.tv>
Message-ID: <a5ea276f-18d7-447d-967f-138cf75f4064@Spark>
In-Reply-To: <list-7130202@media-motion.tv>
References: <list-7130202@media-motion.tv>
Subject: Re: [AE] Best plugin to normalise z depths
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Is Brightness/contrast 32-bit clean=3F I would presume so. Brightness has=
 the virtue of moving all values equally, no companding.

Tim
On Aug 8, 2018, 11:16 PM -0700, Chris Zwar <AE-List=40media-motion.tv>, w=
rote:
> Hi all,
>
> I=E2=80=99m currently working on a project where frames are supplied as=
 multichannel exrs. I=E2=80=99m working in 32bit float, linear space. The=
 z-depth pass has raw values in it which are huge, I am normalising it in=
 a precomp so I can see it, and tint it for fog/atmos effects. Currently =
I=E2=80=99m using the exposure effect to bring the values down into visib=
le range, but as the exposure plugin has a limit of 10 stops sometimes I=E2=
=80=99m having to use 2 copies. Once I can see the image I use the levels=
 effect to fine tune the blacks / whites.
>
> I=E2=80=99m wondering if there=E2=80=99s a better tool. I know AE is a =
bit lacking when it comes to 32 bit support, so is there a better way to =
bring these massive numbers down into a 0-1 range=3F Or is exposure / lev=
els the best we=E2=80=99ve got to work with=3F
>
>
> -Chris
>
> PS. It=E2=80=99s not an option to change the way the z pass is rendered=
 in 3D.
> +---End of message---+
> To unsubscribe send any message to <ae-list-off=40media-motion.tv>

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<div name=3D=22messageBodySection=22>Is Brightness/contrast 32-bit clean=3F=
 I would presume so. Brightness has the virtue of moving all values equal=
ly, no companding.<br />
<br />
Tim<br /></div>
<div name=3D=22messageReplySection=22>On Aug 8, 2018, 11:16 PM -0700, Chr=
is Zwar &lt;AE-List=40media-motion.tv&gt;, wrote:<br />
<blockquote type=3D=22cite=22>Hi all,<br />
<br />
I=E2=80=99m currently working on a project where frames are supplied as m=
ultichannel exrs. I=E2=80=99m working in 32bit float, linear space. The z=
-depth pass has raw values in it which are huge, I am normalising it in a=
 precomp so I can see it, and tint it for fog/atmos effects. Currently I=E2=
=80=99m using the exposure effect to bring the values down into visible r=
ange, but as the exposure plugin has a limit of 10 stops sometimes I=E2=80=
=99m having to use 2 copies. Once I can see the image I use the levels ef=
fect to fine tune the blacks / whites.<br />
<br />
I=E2=80=99m wondering if there=E2=80=99s a better tool. I know AE is a bi=
t lacking when it comes to 32 bit support, so is there a better way to br=
ing these massive numbers down into a 0-1 range=3F Or is exposure / level=
s the best we=E2=80=99ve got to work with=3F<br />
<br />
<br />
-Chris<br />
<br />
PS. It=E2=80=99s not an option to change the way the z pass is rendered i=
n 3D.<br />
+---End of message---+<br />
To unsubscribe send any message to &lt;ae-list-off=40media-motion.tv&gt;<=
br /></blockquote>
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