<p>If you are using Time Remap, a Timewarp should not be needed and vice versa.  Timewarp is designed to allow adjusting the playback rate, where as Time Remap is designed to allow you to tell the playback to be at a particular point in the original timecode when it reaches a particular time in your composition.  It mostly just matters how you want to control the adjustments and what level of control you want over the processing, but only one is needed.</p>

CC BY-SA 3.0
2014-01-08T17:56:49.227Z
2014-01-08T17:56:49.227Z
AJ Henderson
<p>In After Effects to speed up and slow down footage <a href="http://www.youtube.com/watch?v=4feQ1HylGC0&amp;feature=share" rel="nofollow" title="Slow Motion in After Effects">this tutorial</a> shows that you first enable <code>Time Remap</code> then use <code>Timewarp</code>. He doesn't appear to do anything with the Time Remap though.</p>

<p><a href="http://www.lynda.com/After-Effects-tutorials/Slowing-accelerating-video-speed/59957/64216-4.html" rel="nofollow" title="Slowing and accelerating video speed in After Effects">This other tutorial</a> shows doing slow motion either with the <code>Stretch</code> or with <code>Timewarp</code></p>

<p>I get the <code>Stretch</code> vs <code>Timewarp</code> a bit but don't understand the <code>Time Remap</code>. When, if ever, should I be toggling that? From this <a href="http://library.creativecow.net/articles/preston_bryan/time_remapping.php" rel="nofollow" title="Time Remapping in After Effects">nice written tutorial on time remapping</a> it seems that <code>Time Remapping</code> is more useful if you need to reverse playback or add still frames and such. So was there a reason the <code>Time Remap</code> was toggled before the first guy did <code>Timewarp</code>? Does it make it render faster or work better or was it completely unnecessary?</p>

<after-effects>
When is it necessary to enable "Time Remap" in After Effects?
Ryan
# When is it necessary to enable "Time Remap" in After Effects?

(Asked by: username_0 on 2014-01-08)

In After Effects to speed up and slow down footage [this tutorial](http://www.youtube.com/watch?v=4feQ1HylGC0&feature=share "Slow Motion in After Effects") shows that you first enable `Time Remap` then use `Timewarp`. He doesn't appear to do anything with the Time Remap though.

[This other tutorial](http://www.lynda.com/After-Effects-tutorials/Slowing-accelerating-video-speed/59957/64216-4.html "Slowing and accelerating video speed in After Effects") shows doing slow motion either with the `Stretch` or with `Timewarp`

I get the `Stretch` vs `Timewarp` a bit but don't understand the `Time Remap`. When, if ever, should I be toggling that? From this [nice written tutorial on time remapping](http://library.creativecow.net/articles/preston_bryan/time_remapping.php "Time Remapping in After Effects") it seems that `Time Remapping` is more useful if you need to reverse playback or add still frames and such. So was there a reason the `Time Remap` was toggled before the first guy did `Timewarp`? Does it make it render faster or work better or was it completely unnecessary?

**Tags:** after-effects


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## 1 answers

### Answer by username_1 on 2014-01-08. Score: 0 | Accepted answer

If you are using Time Remap, a Timewarp should not be needed and vice versa. Timewarp is designed to allow adjusting the playback rate, where as Time Remap is designed to allow you to tell the playback to be at a particular point in the original timecode when it reaches a particular time in your composition. It mostly just matters how you want to control the adjustments and what level of control you want over the processing, but only one is needed.


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