From: "Chris Zwar" Received: from mail-pl0-f47.google.com ([209.85.160.47] verified) by media-motion.tv (CommuniGate Pro SMTP 6.1.0) with ESMTPS id 6433511 for AE-List@media-motion.tv; Tue, 10 Apr 2018 02:58:37 +0200 Received: by mail-pl0-f47.google.com with SMTP id x4-v6so6285646pln.7 for ; Mon, 09 Apr 2018 18:03:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chriszwar-com.20150623.gappssmtp.com; s=20150623; h=from:mime-version:subject:date:references:to:in-reply-to:message-id; bh=L6kXTSvUuO8gEB8RPifjXGfUpPj/vtGDr85D3HjloeY=; b=XO5Nv1oF9/3W4V0y+BuXpqhQLSn07FC2otIQzEZX48wihIXE3EqV8c06Mgq5dMQ8ew WZNepH/68JsP4RzKdSdo1AntA4YOs1WbPGDn8/0OntoB07HCMaKl5qehodsVcSBUCNIQ WzXYE2N26H1c3iX/3ZigxiQGECFEeHAdNIjy+IGXZULK9dqOPUBr9PaTPGGRcOydT2j9 ZE+raLS1OZEpkcoVNkoIWmIPx20RmaYoa15zyggLergA5W9lzlXVZ6g9uBdl+6dv6jOr YO0+hnQFwhka8rGor0qkj//0i51wbktv5kLHw8lm9R+BlRJc6z5o5cyrm+rdP331dhuy WMjA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:mime-version:subject:date:references:to :in-reply-to:message-id; bh=L6kXTSvUuO8gEB8RPifjXGfUpPj/vtGDr85D3HjloeY=; b=mcE53YzVYPszdILoCmYmgAup2Pc0L+bhloz2BekspJS4KsnsNxqaFjJABuMIXhZowS vns75xhptKapngRbVXgIR3zImf3RClfM9jbZW4KqgJFz0jBlL07Jp+vJNwgMF1k9OI2Y m7qTMpWG8OlAcObJu0cijsnVfMKR8s2u5/XN2C5m/QIHv1l62PxaTDlS75GKayayUO6x 1xJAfGWyQw96RbepmRYbiucn8b348AIUzZwZM7E/QVmcnQiIxejLQuvBS0LrvfZo4R9D PrulNBHJeC8bwGb/ME8JSBEAwdNSsmaNQFStlXCNmdp3gTjwbZB2b81qNN4OJd1PAmw9 XuRQ== X-Gm-Message-State: AElRT7GbGs/TSAco71g/L84a03ubhmv87LWw8E5QQm/BJ6heUjXri6gR RjwaL2eRjgDF2kBsWiyWypa2YbPEaI0= X-Google-Smtp-Source: AIpwx48JmwRS0t1a4NpywW9aKVfmjXoPZJ/PGxvcItFfSbVMk9JKjC6Y2/NliXT2hFstwWAqiCJySw== X-Received: by 2002:a17:902:85:: with SMTP id a5-v6mr40378714pla.99.1523322233285; Mon, 09 Apr 2018 18:03:53 -0700 (PDT) Return-Path: Received: from [192.168.0.6] ([101.164.85.130]) by smtp.gmail.com with ESMTPSA id 125sm2313687pff.158.2018.04.09.18.03.51 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 09 Apr 2018 18:03:52 -0700 (PDT) Content-Type: multipart/alternative; boundary="Apple-Mail=_68C93E3A-0443-41D1-AD91-554EE8B5D5FF" Mime-Version: 1.0 (Mac OS X Mail 11.3 \(3445.6.18\)) Subject: Re: [AE] Unmult? Date: Tue, 10 Apr 2018 11:03:49 +1000 References: To: After Effects Mail List In-Reply-To: Message-Id: X-Mailer: Apple Mail (2.3445.6.18) --Apple-Mail=_68C93E3A-0443-41D1-AD91-554EE8B5D5FF Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Actually it=E2=80=99s the opposite. If you simply copy the lightness = into the alpha then the RGB is preserved entirely, but this isn=E2=80=99t = accurate. You need to use the remove colour matting plugin as well, = which then takes the background colour into account and adjusts = everything accordingly. This video demonstrates what the remove colour matting plugin does and = why it=E2=80=99s important: https://www.provideocoalition.com/alpha-channels-good-bad-ugly/ = > On 10 Apr 2018, at 10:57 am, Roei Tzoref = wrote: >=20 > Ae's Umult - Alpha from Lightness (Unmult) preset) unfortunately is = not optimal since it has a discoloring result. it does not preserve the = RGB information in it's entirety. I have seen not any way in Ae to = unmult natively without this discoloring effect. a simple test is taking = a black solid, adding a lens flare effect, then trying to unmult.=20 >=20 > another free option exists in the VC Color Vibrance plugin which is = free by video copilot:=20 > https://www.videocopilot.net/blog/2016/02/color-vibrance-update-v1-06/ = >=20 > simply change the color to 0 to have no effect in color, and change = "matte alpha" to "on" >=20 >=20 >=20 > On Tue, Apr 10, 2018 at 1:47 AM, Stephen van Vuuren = > wrote: > And if you want to mess around with more creative kind of options, = Brian Moffit eons ago suggested a Shift Channels (Take Alpha from = Luminance) and muck about the a levels effect to boost/lower alpha to = taste. >=20 > -----Original Message----- > From: After Effects Mail List > > Sent: Monday, April 9, 2018 6:04 PM > To: After Effects Mail List > > Subject: Re: [AE] Unmult? >=20 > It=E2=80=99s not THAT cumbersome to do with standard AE tools=E2=80=A6 = first you use the channel combiner, set the first option to Max RGB and = the second to Lightness. Then use the =E2=80=9Cremove colour matting=E2=80= =9D plugin. The combination of those two effects is the same as unmult. >=20 > > On 9 Apr 2018, at 11:43 pm, Byron Nash > wrote: > > > > Looks like Red Giant put their unmult effect into legacy status and = they have one in Universe now? What's the current pulse on which unmult = effect to use? Is there another option these days? >=20 >=20 > +---End of message---+ > To unsubscribe send any message to > >=20 > +---End of message---+ > To unsubscribe send any message to > >=20 --Apple-Mail=_68C93E3A-0443-41D1-AD91-554EE8B5D5FF Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Actually it=E2=80=99s the opposite.  If you simply copy = the lightness into the alpha then the RGB is preserved entirely, but = this isn=E2=80=99t accurate.  You need to use the remove colour = matting plugin as well, which then takes the background colour into = account and adjusts everything accordingly.

This video demonstrates what the remove = colour matting plugin does and why it=E2=80=99s important:

https://www.provideocoalition.com/alpha-channels-good-bad-ugly/=


On 10 = Apr 2018, at 10:57 am, Roei Tzoref <AE-List@media-motion.tv> wrote:

Ae's Umult - Alpha from Lightness (Unmult) preset) = unfortunately is not optimal since it has a discoloring result. it does = not preserve the RGB information in it's entirety. I have seen not any = way in Ae to unmult natively without this discoloring effect. a simple = test is taking a black solid, adding a lens flare effect, then trying to = unmult. 

another = free option exists in the VC Color Vibrance plugin which is free by = video copilot: 
https://www.videocopilot.net/blog/2016/02/color-vibrance-update= -v1-06/

simply change the color to 0 to have no effect in color, and = change "matte alpha" to "on"



On Tue, = Apr 10, 2018 at 1:47 AM, Stephen van Vuuren <AE-List@media-motion.tv> = wrote:
And if you want to = mess around with more creative kind of options, Brian Moffit eons ago = suggested a Shift Channels (Take Alpha from Luminance) and muck about = the a levels effect to boost/lower alpha to taste.

-----Original Message-----
From: After Effects Mail List <AE-List@media-motion.tv>
Sent: Monday, April 9, 2018 6:04 PM
To: After Effects Mail List <AE-List@media-motion.tv>
Subject: Re: [AE] Unmult?

It=E2=80=99s not THAT cumbersome to do with standard AE tools=E2=80=A6 = first you use the channel combiner, set the first option to Max RGB and = the second to Lightness. Then use the =E2=80=9Cremove colour matting=E2=80= =9D plugin.  The combination of those two effects is the same as = unmult.

> On 9 Apr 2018, at 11:43 pm, Byron Nash <AE-List@media-motion.tv> wrote:
>
> Looks like Red Giant put their unmult effect into legacy status and = they have one in Universe now? What's the current pulse on which unmult = effect to use? Is there another option these days?


+---End of message---+
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