3D Motion Tracking, Not Camera Solve

Question

Hi.I've been Googling and YouTubing this and all the info I can find is about 3D camera solving. Here's what I want to do: I have some footage of someone turning their head, and I want to put a 3D model of a hat on them that follows the movement of the head. Is this even possible? Would camera solve work for this? Or just a normal Motion Track with position and rotation? I've tried the latter quickly and I can't seem to get results. Maybe I'm doing it wrong.So first, is it even possible? If yes, anyone know how I could go about it?Thanks

thepixelsmith · Accepted Answer

3D Camera tracking wouldn't work for this since that tech is designed to calculate the movement of the camera that shot a video.

Motion Tracking in AE is a 2D technology so it can tell you rotation, position, scale and skew (How something turns and distorts as it turns).
This is a tutorial from AE Tutorials with Mikey: https://youtu.be/IbKeXYTxalc?si=dGjIVnydJNM2HBld

In it he tracks a head turning towards the camera and uses it to attach a mustache.
It actually may be less trouble though to manually animate the 3D hat.

Rick Gerard · Answer

For some shots, Mocha AE would get you close. Mocha Pro is better. Syntheyes is another app that will do object tracking.

The lowest-cost solution that would probably solve your problem would be Blender. It has good object tracking. Here's one of the dozens of decent tutorial videos on how to do the:

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