• Adobe After Effects

  Exporting With Alpha Channel in Tact

  Posted by Jason Mccaffrey on February 29, 2008 at 8:30 pm

  This has to be easy, right? I’m fairly new to After Effects. I feel like I’m trying to do something very basic, but I can’t figure it out. I have a comic book style speech bubble that I made in After Effects. I am planning on compositing this over some video in Final Cut Pro. How do I export my speech bubble with an alpha channel? I just want the shape of the speech bubble and nothing else.

  I tried searching both the manual and the forums for anything to do with alpha channels. The sheer lack of an answer to this particular question makes me think that it’s so simple, I’m the only person on the planet who doesn’t know how to do it. Help?

  Jason

  Darby Edelen replied 18 years, 2 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Jason Mccaffrey

  February 29, 2008 at 9:19 pm

  Oh my gosh. That is so helpful. Thank you!
• 

  Darby Edelen

  February 29, 2008 at 10:15 pm

  [Jason McCaffrey] “I tried searching both the manual and the forums for anything to do with alpha channels.”

  From the AE help on output module settings:

  “After Effects creates a movie with an alpha channel if you choose RGB+Alpha, implying a depth of Millions of Colors+. Not all codecs support alpha channels.”

  https://livedocs.adobe.com/en_US/AfterEffects/8.0/WS3878526689cb91655866c1103a4f2dff7-79db.ht

  Darby Edelen
  Designer
  Left Coast Digital
  Santa Cruz, CA

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