Answers.Body: <p>In After Effects CC, masks can be made into tracking masks. Right click the mask and you should see a context menu with <strong>Tracking Mask</strong>. Select it and the mask can be tracked to the video it is applied to. The Adobe page about it is <a href="https://helpx.adobe.com/after-effects/using/rigid-mask-tracking.html" rel="nofollow noreferrer">here</a>.</p>
  
  <p><a href="https://i.sstatic.net/neDEg.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/neDEg.png" alt="enter image description here"></a></p>
  
  <p>This will track the video but the mask will be a rigid shape. If you want the points inside the mask to track individual points in the footage you're going to need a third party extension. This one does the job:</p>
  
  <p><a href="http://aescripts.com/tracker2mask/" rel="nofollow noreferrer">http://aescripts.com/tracker2mask/</a></p>
  
  <p>Another option is to apply the mask to a solid layer, then make the tracking null the parent of that layer. This can be useful when working with 3D tracked points, because you can mask objects that are rotating in the frame, eg. for logo removal.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-01-22T10:33:16.767Z
Answers.Text: Great tip that it's now possible to track the mask! Seems not that accurate, but works as expected. Thanks.
Answers.UserDisplayName: p2or
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-01-22T01:31:15.020Z
Answers.LastActivityDate: 2016-01-22T21:10:07.870Z
Answers.LastEditDate: 2016-01-22T21:10:07.870Z
Answers.UserDisplayName: stib
Body: <p>Well, I'm trying to make an airplane explosion scene, and I need to make a mask, because the airplane is behind some trees, I made the mask, but how can I link the mask path to the tracking null?</p>
  
  <p><a href="https://i.sstatic.net/Bh5Bz.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/Bh5Bz.png" alt="enter image description here"></a></p>
  
  <p>Can anyone help me? Thanks.</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-01-21T15:56:19.617Z
Comments.Text: Does [this](http://video.stackexchange.com/a/15177/6685) help?
Comments.UserDisplayName: p2or
Tags: <after-effects><tracking><mask>
Title: How can I link a mask path to a track null?
UserDisplayName: thewalkingplay
ThreadText: # How can I link a mask path to a track null?
  
  (Asked by: username_0 on 2016-01-21)
  
  Well, I'm trying to make an airplane explosion scene, and I need to make a mask, because the airplane is behind some trees, I made the mask, but how can I link the mask path to the tracking null?
  
  [![enter image description here](https://i.sstatic.net/Bh5Bz.png)](https://i.sstatic.net/Bh5Bz.png)
  
  Can anyone help me? Thanks.
  
  **Tags:** after-effects, tracking, mask
  
  > **Comments:**
  > **username_1**: Does [this](http://video.stackexchange.com/a/15177/6685) help?  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_2 on 2016-01-22. Score: 2
  
  In After Effects CC, masks can be made into tracking masks. Right click the mask and you should see a context menu with **Tracking Mask**. Select it and the mask can be tracked to the video it is applied to. The Adobe page about it is [here](https://helpx.adobe.com/after-effects/using/rigid-mask-tracking.html).
  
  [![enter image description here](https://i.sstatic.net/neDEg.png)](https://i.sstatic.net/neDEg.png)
  
  This will track the video but the mask will be a rigid shape. If you want the points inside the mask to track individual points in the footage you're going to need a third party extension. This one does the job:
  
  <http://aescripts.com/tracker2mask/>
  
  Another option is to apply the mask to a solid layer, then make the tracking null the parent of that layer. This can be useful when working with 3D tracked points, because you can mask objects that are rotating in the frame, eg. for logo removal.
  
  > **Comments:**
  > **username_1**: Great tip that it's now possible to track the mask! Seems not that accurate, but works as expected. Thanks.  
  
  ---
  
  