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Problems Tracking Land to Get Outline Shape in AE?

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Bob Thompson
Problems Tracking Land to Get Outline Shape in AE?
on Jan 29, 2019 at 2:05:49 am

I posted this in the BorisFX forum. Hopefully, it's ok to crosspost here.

I'm using AE 2019 and Mocha Pro 2019.
I have a drone shot of a piece of land. I want to track an outline of the land and apply the shape data to a stroke in AE to show the borders. I attached 2 screenshots. The one in Mocha has straight lines. The mask from Mocha that is applied to AE has curves.
I'm not new to Mocha but I am new to Mocha 2019. Does anyone know what I'm doing wrong or why the shape data from Mocha in AE has curves?
Thanks!

Mocha


AE


Win10 64bit | ASUS X99-AII | i7 6850K @ 3.60GHz | 32GB Ram | GeForce GTX 1080 | DeckLink Mini Monitor 4k


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Blaise Douros
Re: Problems Tracking Land to Get Outline Shape in AE?
on Jan 29, 2019 at 10:30:29 pm

You might try doing a 3D Camera Track on the footage, inserting a slightly oversized solid into the 3D scene to match the ground plane, and then drawing the mask on the solid to refine the borders. Since the trees are moving on a different plane than the ground, Mocha might be having trouble resolving the motion of the tracked area.


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Martin Brennand
Re: Problems Tracking Land to Get Outline Shape in AE?
on Jan 29, 2019 at 11:16:36 pm

That's peculiar.

Are you using X-Splines with corners there? What happens if you preview the matte in the plugin?

Martin Brennand | Product Manager | mocha - Imagineer Systems


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