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Mocha AE corner pin problem

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Markus YliMocha AE corner pin problem
by on Aug 29, 2013 at 2:57:16 pm

Hello.

I have an issue with Mocha AE. I'm trying to track my computer's screen and trying to pull it away from the borders so it looks like a hologram screen.

Now I'm trying to track my screen in Mocha. My problem is when I have tracked my screen with x-spline, planar surface doesn't match all the time to my screen. When it tracked my screen I had to adjust those points and I made about 10 keyframes for tracking data.

Okay so here is few pics to explain my problem :)
http://imageshack.us/a/img841/9761/9h11.jpg
http://imageshack.us/a/img594/9518/ufmi.jpg
http://imageshack.us/a/img405/6521/l26o.jpg

Those screenshots are from different spots at timeline.
I hope it will explain my problem better than my bad english :)


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Roland R. KahlenbergRe: Mocha AE corner pin problem
by on Aug 29, 2013 at 8:35:50 pm

It is not clear, in your post, if you adjusted points on the tracking spline or the Planar Surface. Take note that you should be adjusting the points on the tracking spline since the Planar Surface is essentially a child layer of the tracking spline. IOW, the Planar Surface reacts to tracking data that is acquired within the tracking splines.

For tracks that seem to misbehave or require finessing, you should use the Adjust Track module. It is in this module that you manually adjust the Planar Surface to perfectly fit your tracking requirements if the tracking module doesn't provide you with sufficiently precise tracking results.

With specifics to your tracking task, I would try to track the entire screen instead of the parts that you have indicated with the tracking spline. A larger area will almost always lead to more tracking accuracy. You should also look at applying Perspective tracking and ensuring that Percentage of Pixels used is set to a high value - 90% will be a good number.

HTH
RoRK

Intensive mocha & AE Training in Singapore and Other Dangerous Locations

Imagineer Systems (mocha) Certified Instructor
& Adobe After Effects CS6 ACE/ACI


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Markus YliRe: Mocha AE corner pin problem
by on Sep 2, 2013 at 6:36:23 pm

Thank you very much Roland!
I got it work by using adjust track tab.


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Roland R. KahlenbergRe: Mocha AE corner pin problem
by on Sep 4, 2013 at 3:40:19 am

You're welcome Markus. I'm glad you've sorted out your issues.

RoRK

Intensive mocha & AE Training in Singapore and Other Dangerous Locations

Imagineer Systems (mocha) Certified Instructor
& Adobe After Effects CS6 ACE/ACI


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Suny BasuRe: Mocha AE corner pin problem
by on Apr 28, 2014 at 5:36:06 am

Hi,
Why & when I shall use Surface Tab after using X-Spline Tool for tracking a particular zone of a clip in
Mocha for After Effects ?


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