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Dan285284448gry
Participant
October 14, 2024
Question

Trouble with motion tracking onto a stop motion puppet

  • October 14, 2024
  • 1 reply
  • 274 views

Working on my stop motion animation thesis and I've been stuck trying to figure out how to motion track the green markers on my puppets face. I've tried the in built motion tracker and using mocha, but both of those stop tracking pretty quickly.

 

ive also tried isolating just the motion tracking markers individually and cannot get it to work. I asked a professor versed in after effects and he said I was doing everything right and he couldn't get it to work either. Can anyone help? I've looked through just about every tutorial I could find and none help me with this issue. 

 

here's the scene I'm working on tracking, along with the isolated tracking dots. 

https://drive.google.com/file/d/1X07uTDcWOtrKZ9nDdZgFzCSYXTv1E3Ra/view?

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1 reply

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Community Expert
Rick GerardCommunity Expert
Community Expert
October 14, 2024

Your Google drive link is not working. 

I would try and to the tracking with Mocha AE.

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Dan285284448gryAuthor
Participant
October 15, 2024

Tried that but couldn't get that to work

 

try this link https://drive.google.com/drive/folders/1lRAq3PIQpQRkbC-nQAfci9BjRJTfoy_A

R
Community Expert
Rick GerardCommunity Expert
Community Expert
October 15, 2024

I took a look at your footage. It looks like your only option is to try to track the whole face for transformation, rotation, and scale only a few frames at a time. Then, tie some manual track points for the eyes and mouth to those other tracked areas and manually keyframe where needed.

 

It might be faster to keyframe all of the track points manually. Once you have the mouth, you could tie the eyes to that track to simplify the other trackers.

 

Running Rotobruish on the face may give you a cleaner palate to work with. 

 

When you do stop-motion animation, you must consider the post-production workflow. Those fast moves with radical angle changes and body rotation need to be shot with many smaller movements, then retimed in Post, so you have some usable image data to work with. 

 

The only other option I can think of is to try fiddling with AI to generate more frames for tracking. Adobe Max showed some amazing AI for fixing shots at Adobe Max yesterday. I haven't fiddled with it yet.

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