Mailing List AE-List@media-motion.tv — Message #65877
From: Roei Tzoref <AE-List@media-motion.tv>
Subject: Re: [AE] Keying with multiple masks and zero overlapping
Date: Thu, 9 Jan 2020 11:27:11 +0200
To: After Effects Mail List <AE-List@media-motion.tv>
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Thx Mike, Having a stencil from them for my RGB doesn’t solve my Alpha channel problem. 

Let me explain it in another way:

I am creating different mattes with semi transparent areas in the overlapping and that causes a problem because the create multiplication of the alpha information

The ideal way to fix this is if the mask could be perfectly adjacent to one another the same way a mask on “add” and its duplicate on “subtract” work. Only that I have more than 2 masks.

On Thu, 9 Jan 2020 at 9:41 Mike Abbott <AE-List@media-motion.tv> wrote:

Could you add a further copy of the original footage on top of all your keyed layers and enable ' preserve underlying transparency' ?

 
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