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Alpha Channel
Is there a way to select either Straight or Premultiplied Alpha channel in PPro? Can’t find it and have bad banding on overlays etc.
Lance Bachelder
Writer, Editor, Director
Downtown Long Beach, California
https://www.imdb.com/name/nm1680680/?ref_=fn_al_nm_1 -
7 Replies
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Banding in transparency or in color?
Alex Udell
Editing, Motion Graphics, and Visual FX -
No you can only ignore or invert the alpha channel.
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Adobe Certified Expert Premiere Pro CC
Adobe Community Professional -
Yeah that’s all I could find. Just crazy that the company that gives us After Effects and Photoshop could miss something so basic.
Lance Bachelder
Writer, Editor, Director
Downtown Long Beach, California
https://www.imdb.com/name/nm1680680/?ref_=fn_al_nm_1 -
Try the Remove Matte Effect, it removes color fringes from clips that are premultiplied with a color.
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Adobe Certified Expert Premiere Pro CC
Adobe Community Professional -
Tried it thanks – no change. Files are fine in FCPX and AE… oh well.
Lance Bachelder
Writer, Editor, Director
Downtown Long Beach, California
https://www.imdb.com/name/nm1680680/?ref_=fn_al_nm_1 -
Try a different format for the clip. Is the clip ProRes 4444, Animation or DNXHD? I have found that DNXHD sometimes doesn’t carry the alpha correctly. Try a different flavor.
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You’ve probably figured this out by now, but the answer is here: https://forums.creativecow.net/thread/3/971240
You need to uncheck “Composite in Linear Color” in Sequence Settings. It’s checked by default for some reason.
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Dean Fisher
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