Ross Shain
10
COW Coins
Forum Replies Created
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You could use mocha for this type of shot, but keep in mind that mocha is a 2D planar tracker. When the paper folds, it becomes 2 planes moving in different directions and could need a separate track for the fold layer if that is to be have video inserted as well.
We have seen many customers use mocha for this type of project. Focus your search layer on the bottom plane. You can also mask out the fold on a layer above the track layer, which will allow the bottom layer to track through obscured paper fold.
Your issue will be doing the fold/bend. This could be accomplished in a few ways: using a 3D mesh deformer (like Mettle Freeform) Or using 2D or 3D deform techniques within AE. You might want to look at mochaImport+ script which uses a stabilize pre-comp and would allow you to focus on the distortion aspect of the shot.
Beyond this, you would need to explore a 3D object tracking application like PFTrack or SynthEyes, but depending on the duration of the shot, might be overkill.
Ross Shain
Imagineer Systems
http://www.imagineersystems.com -
In mocha, view the “Surface” this represents the track data.
When exporting Corner Pin, you will get the 4 Surface corner points as track data.
When exporting Transform, Scale, Rotate, you will get the center of the surface.
Sometimes it may help to view, scale and position the Surface before exporting.You can always offset that position with your Null in AE.
Best,
RossRoss Shain
Imagineer Systems
http://www.imagineersystems.com -
Sure – mocha could track the finger and export the Transform, Scale, and Rotation keyframes. You do not “have” to use corner pin/perspective export. So this would be the same as concept as using the AE point tracker (with more robust mocha tracking).
You could use that track data for a null to drive any effect.
If you want to explore more advanced techniques, you could try 3D object tracking using either mocha AE v3 OR another application like Syntheyes or PFTRACK, etc.
Best,
RossRoss Shain
Imagineer Systems
http://www.imagineersystems.com -
mocha does allow you to re-link clips at different resolutions and will scale to fit. You should not need to re-track. Try re-linking the clip to 1/2 res media (in the clip tab of mocha).
Let me know if that helps.
-RossRoss Shain
Imagineer Systems
http://www.imagineersystems.com -
You could look into this track conversion program:
https://www.ixirdigital.com/trackeditor.phpRoss Shain
Imagineer Systems
http://www.imagineersystems.com -
The other thing you could do is stop the tracker when it goes off, skip to a portion that is more trackable, then continue. Also – you can turn on “manual track” to expose all tracking keyframes for manual adjustments. Beware, this can be difficult for a new user to manage, but sometimes necessary depending on the challenge.
Ross Shain
Imagineer Systems
http://www.imagineersystems.com -
In case you missed it, Imagineer Systems and Coremelt announced this joint product announcement today:
https://news.creativecow.net/story/874114TrackX powered by mocha
Track screens and text in FCPX without exporting or exiting your timeline.You can find some good video tutorials here:
https://vimeo.com/channels/657027Cheers,
RossRoss Shain
Imagineer Systems
http://www.imagineersystems.com -
Just to mention, you can also choose to “invert” your tracking data on export from mocha to stabilize.
This is different than the useful mochaImport script that automates a stabilize/destabilize pre-comp workflow, but can help when needed.
-Ross
Ross Shain
Imagineer Systems
http://www.imagineersystems.com -
Most 3D tracking softwares can do this. The bundled mocha AE CC will only export 2D tracking via corner pin or simple transform.
You can upgrade the bundled mocha AE to mocha AE v3 which includes a 3D Camera solver. You can export to AE and will get (5) 3d Nulls for each mocha surface (1 for each corner and center point).
mocha AE v3 (and mocha Pro v3) include this camera solve feature that can also solve moving objects.
https://www.imagineersystems.com/videos?tagFilter=3D+Camera+Solve+Module&sortBy=NewestAE CC has 3D tracking but not for moving objects. Other software for this task would be SynthEyes or PFTrack.
Best,
RossRoss Shain
Imagineer Systems
http://www.imagineersystems.com -
I would recommend starting with mocha training here:
https://www.imagineersystems.com/mocha_FundamentalsYou can find lots of tutorials in the video section and browse by subject:
https://www.imagineersystems.com/videos?tagFilter=%25tutorial&sortBy=NewestBest,
RossRoss Shain
Imagineer Systems
http://www.imagineersystems.com