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kayceb59383624
kayceb59383624
Participant
January 15, 2020
Question

AE not rendering Alpha Channel Anymore

  • January 15, 2020
  • 2 replies
  • 5979 views

I need some serious help and fast...

I've been doing media overlays for OBS for some time now....no issue...everything renders perfectly...click the alpha channel, add to render queue and click on rgb+alpha...

 

Now, out of the blue it continues to render the "composition" background...even though I click on the transparency grid...

 

what is happening???  I have rendered like 20 of these and now have to go back and figure out what to do??  Did I miss something? 

 

Please help....and thank you.

    This topic has been closed for replies.

    2 replies

    MasterTheWong
    MasterTheWong
    Participating Frequently
    March 21, 2022

    After clicking transparency grid. Select Animation codec and then render RGB + Alpha. works for me. 

      W
      Community Expert
      Warren Heaton10841144Community Expert
      Community Expert
      January 15, 2020

      Have you double-checked that the Channels pop-up menu under Video Output in the Output Module Settings is set to RGB+Alpha?

       

       

      If you're not already using it, the "Lossless with Alpha" template is a good Output Module template to use as a test.

       

      Also, double-check that your current Format and CODEC choices support an alpha.

        J
        johnathanmarsh
        Participating Frequently
        March 4, 2021

        My AE will not even render an alpha channel using "Lossless with Alpha." I have confirmed through toggle that an alpha channel is present but I keep getting a black background, even in Premiere or ME

        W
        Community Expert
        Warren Heaton10841144Community Expert
        Community Expert
        March 4, 2021

        From what I can tell, it *should* be good.

        I have tried using the Lossless with Alpha preset. I have tried various recommended custom sets. Nothing puts the alpha channel on there. Tested in PP, ME, VLC, even the thumbnails show a background.


        As far as checking the rendered file for an Alpha goes, what does it look like if you import it into an After Effects project and view it in the Footage tab?

         

        Can you share a screenshot of your Render Queue with the Render Settings and the Output Module expanded?

         

        Here's an exmaple:

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