Answers.Body: <p>Found a solution. Maybe someone will need it.</p>
  <p>Layer -&gt; Auto-Trace</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-07-21T05:23:48.040Z
Answers.Text: Worth noting that you can also use a layer as a track matte for other layers. https://helpx.adobe.com/after-effects/using/alpha-channels-masks-mattes.html#track_mattes_and_traveling_mattes
Answers.UserDisplayName: stib
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-07-20T19:39:56.950Z
Answers.LastActivityDate: 2020-07-20T19:39:56.950Z
Answers.UserDisplayName: Oleksandr Osheko
Body: <p>Is that possible to generate mask from Layer Alpha Channel?</p>
  <p>I want to quick select this image for masking.</p>
  <p><a href="https://i.sstatic.net/rdpd5.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/rdpd5.jpg" alt="enter image description here" /></a></p>
  
Tags: <after-effects><mask>
Title: How to quick select PNG image for masking in After Effects?
UserDisplayName: Oleksandr Osheko
ThreadText: # How to quick select PNG image for masking in After Effects?
  
  (Asked by: username_0 on 2020-07-20)
  
  Is that possible to generate mask from Layer Alpha Channel?
  
  I want to quick select this image for masking.
  
  [![enter image description here](https://i.sstatic.net/rdpd5.jpg)](https://i.sstatic.net/rdpd5.jpg)
  
  **Tags:** after-effects, mask
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_0 on 2020-07-20. Score: 1 | Accepted answer
  
  Found a solution. Maybe someone will need it.
  
  Layer -> Auto-Trace
  
  > **Comments:**
  > **username_1**: Worth noting that you can also use a layer as a track matte for other layers. https://helpx.adobe.com/after-effects/using/alpha-channels-masks-mattes.html#track_mattes_and_traveling_mattes  
  
  ---
  
  