Answers.Body: <p>Something like that is solved with "Rotoscoping". After Effects has several features that make this process easier. F.e. the "Roto Brush", you can find a tutorial about that here:
  <div class="youtube-embed"><div>
                  <iframe width="640px" height="395px" src="https://www.youtube.com/embed/IHz_UvZ5_8g?start=0"></iframe>
              </div></div>
  <a href="https://helpx.adobe.com/after-effects/using/roto-brush-refine-matte.html" rel="nofollow">https://helpx.adobe.com/after-effects/using/roto-brush-refine-matte.html</a></p>
  
  <p>Then you will have to track the translation and rotation of the sign as its carried around. When you have that you can add a layer that follows the movement of the sign that holds your new content.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-11-14T13:47:21.177Z
Answers.LastActivityDate: 2015-11-14T13:47:21.177Z
Answers.UserDisplayName: timonsku
Body: <p>I need to change the sign contents in the <a href="https://www.youtube.com/watch?v=E2ZDpRwKaUA" rel="nofollow noreferrer">clip</a></p>
  
  <p>The problem is that in some parts gets "blocked" by walking in front of it Minions. How would you solve this challenge?</p>
  
  <p><strong>Screenshots:</strong></p>
  
  <p><a href="https://i.sstatic.net/9UDgd.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/9UDgd.png" alt="enter image description here"></a>
  <a href="https://i.sstatic.net/12oWb.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/12oWb.png" alt="enter image description here"></a></p>
  
Tags: <after-effects>
Title: How to inserty custom background or second plan footage using dynamic mask in After Effects?
UserDisplayName: J.Olufsen
ThreadText: # How to inserty custom background or second plan footage using dynamic mask in After Effects?
  
  (Asked by: username_0 on 2015-10-19)
  
  I need to change the sign contents in the [clip](https://www.youtube.com/watch?v=E2ZDpRwKaUA)
  
  The problem is that in some parts gets "blocked" by walking in front of it Minions. How would you solve this challenge?
  
  **Screenshots:**
  
  [![enter image description here](https://i.sstatic.net/9UDgd.png)](https://i.sstatic.net/9UDgd.png)
  [![enter image description here](https://i.sstatic.net/12oWb.png)](https://i.sstatic.net/12oWb.png)
  
  **Tags:** after-effects
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2015-11-14. Score: 1
  
  Something like that is solved with "Rotoscoping". After Effects has several features that make this process easier. F.e. the "Roto Brush", you can find a tutorial about that here:
  
  <https://helpx.adobe.com/after-effects/using/roto-brush-refine-matte.html>
  
  Then you will have to track the translation and rotation of the sign as its carried around. When you have that you can add a layer that follows the movement of the sign that holds your new content.
  
  
  ---
  
  