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Import Video with Alpha Channel in After Effects

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francesco glavina
Import Video with Alpha Channel in After Effects
on Nov 7, 2018 at 12:50:37 pm
Last Edited By francesco glavina on Nov 7, 2018 at 12:51:13 pm

I have a problem to import a video with Alpha Channel in After Effects.
I have the latest version of AE. Importing the same video in Premiere give me an Alpha Background, so the Alpha exist. Import in After Effects give me the video without the Alpha (Yes, all options are right, alpha is Straight/Unmatted etc...)
Someone know the trick?


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Cassius Marques
Re: Import Video with Alpha Channel in After Effects
on Nov 7, 2018 at 1:33:35 pm

Have you tried putting something behind the video? Some screenshots of your interpret footage settings and viewport would help.

Cassius Marques
http://www.zapfilmes.com


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francesco glavina
Re: Import Video with Alpha Channel in After Effects
on Nov 8, 2018 at 12:53:30 pm

Thanks man. Yes. I tried.
You find the screens attached...
The same image in Premiere have alpha instead of green...



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Max Haller
Re: Import Video with Alpha Channel in After Effects
on Nov 8, 2018 at 3:43:03 pm

Does the video have any keying effects that are applied in premiere to key out the greenscreen? Those would need to be rendered out before the alpha channel would be "baked" into the footage. Just wanted to rule that out before you go crazy trying to figure it out. If that is the case just rekey in after effects or make sure the footage was rendered with an alpha channel.


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Stephen Smith
Re: Import Video with Alpha Channel in After Effects
on Nov 8, 2018 at 3:46:22 pm

Wait, are you saying you keyed the video in Premiere Pro and you want to import it into After Effects?

Stephen Smith

Utah Video Productions

Check out my Vimeo page


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