Exporting With Alpha Channel

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Devon Voelkel

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  • Joined: Wed Mar 15, 2017 1:50 am

Exporting With Alpha Channel

PostWed Mar 15, 2017 2:09 am

Working on a project with a pipeline that went as follows:

  • Shot C300 on green screen
  • Edited in Premiere
  • Keyed green screen shots in After Effects, exported as Prores4444
  • Colored shots in Davinci, with Alpha interpreted as straight
  • Tried exporting as Prores4444, but the alpha channel is premultiplied with black, it seems

Is there any way to export with Alpha unmultiplied? Is there another option for fixing this?

I'm trying to layer in animation underneath the shots in Premiere, and luma keying out the black ends up looking terrible.

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