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Activity Forums Adobe After Effects Alpha Channels from Windows to Mac

  • Alpha Channels from Windows to Mac

    Posted by Chris McCormick on January 13, 2023 at 8:36 pm

    Interesting issue. I had a friend render out some videos for me with Alpha channels. He uses a windows machine and I use a Mac. I output a few of the files and he output the rest from his Windows version of AE. When I got the files back I place them in my document and added a background. The files I output worked fine. The windows files had a rule around the alpha path that I couldn’t get rid of. We both used the same output settings. Pro Res 4444 with alpha.

    Has anyone else had this experience?

    Andy Kiernan replied 3 years, 6 months ago 2 Members · 1 Reply
  • 1 Reply
  • Andy Kiernan

    January 19, 2023 at 9:32 am

    could it be that the comp on the windows machine had a comp background set to something other than black? That is to say that the comps on each machine may have different comp BGs (the BG setting in comp settings)

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