Ross Shain
10
COW Coins
Forum Replies Created
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Try drawing a shape around the right edge of the cup (avoiding the hand spoon). Than yes, you could use the Stabilize tab and frame selection to either lock down or smooth the camera motion.
To answer your other question, if the hand was moving all over the frame, you could add a 2nd layer to track the hand/spoon and as long as that is placed “above” the first later, the first layer would subtract and not use that 2nd layer for tracking or stabilization.
Warp Stabilizer in AE is great, but there are many times where the user needs to make really specific selection on what to stabilize or how much smoothing is occurring. In these cases mocha is quote useful.
Hope that helps,
RossRoss Shain
Imagineer Systems
http://www.imagineersystems.com -
Oddly enough, mocha’s tracker can sometimes fail on computer generated images that are “pure black or white”. Mocha tracks patterns and pure black/white could throw it off.
That said I would recommend drawing a shape closely around the graphic and increasing the Minimum % of Pixels to 100.
Ross Shain
Imagineer Systems
http://www.imagineersystems.com -
It looks like your image graphic was not the same size as the AE composition. There are multiple ways to fix and troubleshoot this:
1. Check the surface (blue box in mocha) – is it positioned where you want to graphic to be?
2. Instead of your graphic – try creating a new solid that is the same size as your AE composition.
Paste the track data to this new solid. If it is in the right place, than your issue is the graphic size. You can resolve this be scaling this to the full comp size, then precomping before you paste track data.Alternately, you can use the “Align surface” button in mocha which scales the track to full frame and allows you to corner pin and place your logo into proper scale and placement. Make sure to precomp.
3. I believe you are missing something with the 2 search areas in mocha. mocha will only export the track data for 1 layer. If you need multiple search areas to solve the track, than you should be using the X+ button to create a second search shape in 1 layer. Meaning: this 2 search layers are only driving 1 surface.
I hope this helps. mocha is far easier to make work than most people think. You may want to watch the tutorial here: https://www.imagineersystems.com/mocha_Fundamentals
Also – MochaImport+ is a script that can help get past some of AE’s corner pin limitations. It is not essential but I know many AE users that swear by it:
https://mamoworld.com/tools/mochaimport-after-effectsBest,
RossRoss Shain
Imagineer Systems
http://www.imagineersystems.com -
There are 2 ways to paste mocha roto data to AE:
1. Edit>paste. This will paste mocha shape (effect)
2. Edit>paste>mocha mask (copies the roto shape to AE mask layer)Are you pasting from the first keyframe? Are there handles on your shot that have not been tracked?
If you open the keyframe editor in AE, do you see “any” keyframes?These are the things that come to mind. You can contact mocha support for more technical help:
https://www.imagineersystems.com/contact_formBest,
RossRoss Shain
Imagineer Systems
http://www.imagineersystems.com -
Hi Stephen,
These beginning videos are all created with mocha version 3:
https://www.imagineersystems.com/mocha_FundamentalsI would recommend start with this, than move on to mocha Pro specific tutorials for Remove Modle, 3D Camera Solve, Etc.
Best,
RossRoss Shain
Imagineer Systems
http://www.imagineersystems.com -
My guess is you are on Windows? Probably a QT issue. Please contact our support team as we are trying to resolve some of these import issues for the next release. You will need to provide some information about your system and the files.
https://www.imagineersystems.com/contact_form
Ross Shain
Imagineer Systems
http://www.imagineersystems.com -
There are many tutorials about planar tracking. Firstly, you need to understand the concept of planar tracking and selecting a good region to track. If there are things like reflections or foreground elements you need to avoid this with multiple layers or animating your search layer.
Other tips – increase the % of pixels in the track tab.
View the surface as you track. If it is not tracking well, your search area and what you are tracking is the issue. While mocha can solve really difficult tracks, it is not magic and the user has to feed it good information.
I would recommend following these videos first:
https://www.imagineersystems.com/mocha_FundamentalsThis addresses what to do when things go wrong:
https://www.youtube.com/watch?v=T06n9opJcOURoss Shain
Imagineer Systems
http://www.imagineersystems.com -
https://www.imagineersystems.com/support/Documentation/supported-file-formats
Ross Shain
Imagineer Systems
http://www.imagineersystems.com -
AdjustTrack is a 2nd layer of keyframes that is applied as global adjust to the primary tracking.
So if your original track has major drift, or is not as good as possible, than your adjustments will fight the original track which still has animated keyframes.
My suggestion is to use various tracking techniques to get a solid track before going in and adjusting if possible. Adjust is used for tweaking small drifts, but not for complete retweaking the overall track.
Hoep that helps. The Adjust does not replace the keyframes from the original track, it simply applies secondary keys on top.
Ross Shain
Imagineer Systems
http://www.imagineersystems.com -
The PTZ solver (Pan/Tilt/Zoom) is used for locked down footage (meaning on a tripod). Potentially a hand held shot could be solved with this, but if there is not much parallax change it might not be necessary.
For a PTZ solve, you really only need one mocha surface tracked.
For Small or Large Parallax you need at least 2-3 “non co-planar” surfaces tracked. This means track a foreground element and a back ground element that are not on the same plane.
Also – your mocha camera solve is influenced by the actual surface position. I always position and scale my surfaces into context of what I tracked, before selecting “solve camera”.
Lastly – if there is no perspective shift in the camera move, are you sure you need a 3D camera solve and not the simple transform, scale, rotate @D track?
Hope some of these thoughts help!
-RossRoss Shain
Imagineer Systems
http://www.imagineersystems.com