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_noc
Participant
March 15, 2022
Answered

How to draw a line from track motion data (following objects)?

  • March 15, 2022
  • 3 replies
  • 499 views

Hi,

 

Is there a way to draw a line from track motion data in After Effects?

Imagine a video without camera movement and I would like to use track motion to follow a moving object, but I need to create a path recreating the movement made by the object (like a trail). I need to track the object, but how do I record the trail?

 

I couldn't find help anywhere online.

 

Thanks!

This topic has been closed for replies.
Correct answer Mylenium

The same old tricks apply: Write-On or any particle effect that leaves a trail. Otherwise you can copy & paste position data keyframes to mask paths. The mechanics work both ways, not just the more common practice of pasting mask paths to positions.

 

Mylenium

3 replies

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_nocAuthor
Participant
March 16, 2022

Thank you both fot the input. Big help!

These seem to be nice work arounds, especially forcing a mask path to position keyframes.

 

P.M.B
P.M.B
Legend
March 16, 2022

Not really "work arounds", just how you would do it.  A work around implies something is not working the way it should be.

~Gutterfish
Mylenium
MyleniumCorrect answer
Legend
March 16, 2022

The same old tricks apply: Write-On or any particle effect that leaves a trail. Otherwise you can copy & paste position data keyframes to mask paths. The mechanics work both ways, not just the more common practice of pasting mask paths to positions.

 

Mylenium

Jqke
Jqke
Legend
March 15, 2022

It may be slightly ineffective, but try using the Auto-trace feature (Layer > Auto-trace) and make sure you are tracing the work area.

~Jake
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