<p>Found a solution. Maybe someone will need it.</p>
<p>Layer -&gt; Auto-Trace</p>

CC BY-SA 4.0
2020-07-21T05:23:48.040Z
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
stib
CC BY-SA 4.0
2020-07-20T19:39:56.950Z
2020-07-20T19:39:56.950Z
Oleksandr Osheko
<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>

<after-effects><mask>
How to quick select PNG image for masking in After Effects?
Oleksandr Osheko
# 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


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## 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  

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