This IS the Avid L2: Re: [Avid-L2] Does Rendering a Matte Key Graphic in After Effects to DNX invert the alpha channel?

Monday, January 5, 2015

Re: [Avid-L2] Does Rendering a Matte Key Graphic in After Effects to DNX invert the alpha channel?

Thanks John and John. I've wondered about this but I never bothered to
search out an explanation. --J.B.

John Pale pale.edit@gmail.com [Avid-L2] wrote:
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> Using the DNX codec creates alphas the way avid likes them (no invert
> needed)
>
> Using animation codec usually needs inverting. Not sure about ProRes
> 4444, but probably the same.
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> On Monday, January 5, 2015, John Moore bigfish@pacbell.net
> <mailto:bigfish@pacbell.net> [Avid-L2] <Avid-L2@yahoogroups.com
> <mailto:Avid-L2@yahoogroups.com>> wrote:
>
> The vast majority of graphics I get from After Effects are at RGB
> level and I invert the alpha on import and everything works fine.
> I inherited an AE project for a series I'm doing and I created an
> export setting for Avid DNX 220 with Alpha straight key. I find
> when I import these graphics I don't have to invert the alpha on
> import. I'm curious why they aren't like most AE graphics I get.
> Does AE know to invert the Alpha channel when exporting to Avid
> DNX codec or is there just something about how the AE project is
> handling the alpha that is inverting the alpha before it gets into
> Avid?
> John Moore
> Barking Trout Productions
> Studio City, CA
> bigfish@pacbell.net
> <javascript:_e(%7B%7D,'cvml','bigfish@pacbell.net');>
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