Answers.Body: <ol>
  <li>Create your keyframes</li>
  <li>Select them by holding down <kbd>Shift</kbd>, via box select or simply click the <em>Flare Brightness Property</em></li>
  <li>Then hold <kbd>Alt</kbd> and click the stopwatch icon, this will create an expression</li>
  <li>Then click the <em>Expression Arrow</em> <kbd>></kbd> and select <em>Property >  <code>loopoutduration</code></em> this will cause that the keyframes to repeat themselves</li>
  </ol>
  
  <p><a href="https://i.sstatic.net/zAqCu.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/zAqCu.png" alt="Image"></a></p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-08-17T11:31:17.007Z
Answers.Text: I very much appreciate the pictures. Thanks to them, I was able to immediately get it to do what I wanted. I wish After Effects was more clear on how things interacted, though I guess I'll get a feel for it after spending more time with it.
Answers.UserDisplayName: Luke Mayson
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-09-16T10:03:02.193Z
Answers.Text: @LukeMayson should mark this the correct answer, helps Video get out of Beta.
Answers.UserDisplayName: Ryan
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-08-17T01:36:41.147Z
Answers.LastActivityDate: 2015-09-17T11:54:52.287Z
Answers.LastEditDate: 2015-09-17T11:54:52.287Z
Answers.UserDisplayName: Boomkop3
Body: <p>What I want to do is simple conceptually, but I am just not having success with actually doing it.</p>
  
  <p>I am creating a short video snippet in After Effects, as part of a larger presentation. The video is supposed to begin with a blinking light under the title, which then transitions, with a sound effect, to the video itself.</p>
  
  <p>I've worked out the sound effect, the transition, and all of the other stuff - I just don't know how to animate a blinking light. There must be a way to automate turning the opacity on and off - but all of the tutorials I've found date from several years ago at the earliest and presuppose a working knowledge of After Effects that is more in-depth than what I have.</p>
  
  <p>Can someone point me in the right direction? Preferably with explicit steps!</p>
  
Tags: <after-effects><animation><automation>
Title: How to create a blinking effect in After Effects CC?
UserDisplayName: Luke Mayson
ThreadText: # How to create a blinking effect in After Effects CC?
  
  (Asked by: username_0 on 2015-08-16)
  
  What I want to do is simple conceptually, but I am just not having success with actually doing it.
  
  I am creating a short video snippet in After Effects, as part of a larger presentation. The video is supposed to begin with a blinking light under the title, which then transitions, with a sound effect, to the video itself.
  
  I've worked out the sound effect, the transition, and all of the other stuff - I just don't know how to animate a blinking light. There must be a way to automate turning the opacity on and off - but all of the tutorials I've found date from several years ago at the earliest and presuppose a working knowledge of After Effects that is more in-depth than what I have.
  
  Can someone point me in the right direction? Preferably with explicit steps!
  
  **Tags:** after-effects, animation, automation
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2015-08-17. Score: 4
  
  1. Create your keyframes
  2. Select them by holding down `Shift`, via box select or simply click the *Flare Brightness Property*
  3. Then hold `Alt` and click the stopwatch icon, this will create an expression
  4. Then click the *Expression Arrow* `>` and select *Property > `loopoutduration`* this will cause that the keyframes to repeat themselves
  
  [![Image](https://i.sstatic.net/zAqCu.png)](https://i.sstatic.net/zAqCu.png)
  
  > **Comments:**
  > **username_0**: I very much appreciate the pictures. Thanks to them, I was able to immediately get it to do what I wanted. I wish After Effects was more clear on how things interacted, though I guess I'll get a feel for it after spending more time with it.  
  > **username_2**: @username_0 should mark this the correct answer, helps Video get out of Beta.  
  
  ---
  
  