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After Effects Hidden Gems Weekly: Alpha Add Mode

April 13, 2015, 06:09 PM

http://www.provideocoalition.com/after-effects-hid...

If you haven’t run into this yet, you will: Two edges that should like up perfect in After Effects exhibit a partially transparent seam. No, it’s not a bug or a mistake in your math; it has to do with the way anti-aliased edges and alpha channels are calculated. 

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