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Keylight--'final result' vs manually applying the matte

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Eric Mercado
Keylight--'final result' vs manually applying the matte
on Jan 25, 2018 at 9:10:20 pm

Hey,

So does anybody know a little bit about how the 'Final Result' setting of the Keylight effect works? From what I understand, the basics are that it will send an output that consists of the RGBs premultiplied by the alpha channel (unless of course you check the 'unpremultiply checkbox'). This is great.

Knowing this, I would think that I could instead set the output to 'Combined Matte,' which will send the alpha into each of the RGB channels, and then I could manually grab one of these channels using the "set matte" effect and apply it to the RGBs of the source video and get the same result. However I do not get the same results.

The Keylight "final result" mode gives me a much cleaner result than if I were to use my own "set matte" effect. Does anybody happen to know what that is?

Thank you in advance for any help!


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