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ProRes 4444 Footage with Alpha

If I export a ProRes 4444 alpha from motion (e.g an animated spinning star shape) it is exported with a premultiplied alpha by default, and I can't find any setting to change this to straight.


If I try to use this footage in Final Cut Pro X. Final Cut renders it incorrectly. It only renders footage with straight alphas correctly. I can't find a setting to change the alpha interpretation for the imported video


It seems a bit odd that the default export from one Apple Pro Software should not work by default in other Apple Pro software


Am I missing something?

MacBook Pro 15″, macOS 10.13

Posted on Aug 17, 2021 5:45 AM

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Question marked as Top-ranking reply

Posted on Aug 17, 2021 10:34 AM

4 replies

ProRes 4444 Footage with Alpha

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