• Adobe After Effects

  How to make borders based on alpha channel

  Posted by Andrews77 on May 10, 2006 at 11:14 pm

  HI, can you help me ??

  Supposing you have an image with an alpha channel over another image, and you want to create a border around the former. I could use the information of alpha channel to create the borders but I don’t know how to do that.
  Imagine
  An apple with alpha over a ground and I want a yellow border around the apple.

  Thanks

  Andrews77 replied 20 years, 4 months ago 1 Member · 0 Replies
• 0 Replies

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