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Noam Taub
Participant
August 3, 2020
Answered

premiere doesn't recognize alpha channel exported from adobe animate (?)

  • August 3, 2020
  • 2 replies
  • 651 views

Hi all,

Maybe this on belongs to Premiere, meybe to Animat. But anyway:

I export a video from animate to premiere with the stage color replaced to alpha channel (file -> export video/media -> ticked "ignore stage color (generate alpha channel)".

When I import the vido to premiere, I get a black background instead of the stage's background, but no alpha channel.

IMPORANT: I've ceked similar posts, and already tried to: go to modify -> interpret footage in Premiere. All alpha channel options are GRAYED OUT.

The video format I use to export is H.256, high bitrate.

I'm using Premiere Pro 14.3.0, Animate 20.5.1, but had the same probem with previous versions.

Cheers,

Noam

This topic has been closed for replies.
Correct answer Michael Grenadier

does h256 support an alpha channel?  Maybe try prores4444 or quicktime with animation codec with millions+ colors?

 

2 replies

M
Michael GrenadierCorrect answer
Legend
August 6, 2020

does h256 support an alpha channel?  Maybe try prores4444 or quicktime with animation codec with millions+ colors?

 

    N
    Noam TaubAuthor
    Participant
    August 6, 2020

    Yeah mgrandier, that did it!

    I exported in quicktime --> default (animate), and got an alpha channel!

    I didn't know some codecs don't support alpha channel.

    I believe users shoud be warned by the software if they export in contradicting settings. Kinda basic, isn't it?

    I'll file a request for that.

    Many many thanks!

    Ann Bens
    Community Expert
    Ann BensCommunity Expert
    Community Expert
    August 3, 2020

    An Alpha channel shows default as black.

    Did you try to superimpose the clip over a say color matte or turn on the Transparancy Grid in the monitors (wrench).

    N
    Noam TaubAuthor
    Participant
    August 5, 2020

    Hi Ann,

    Thank you for your reply.

    Yes, I've tried both. In the alpha view shows the whole clip as opaque.

    Thanks,

    Noam

    Ann Bens
    Community Expert
    Ann BensCommunity Expert
    Community Expert
    August 5, 2020

    Post screenshot clip in List View in the project window selected and Preview Area on.

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