Use motion tracking to fix handshake?

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kavlor
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Use motion tracking to fix handshake?

Post by kavlor » Mon Oct 18, 2010 9:29 pm

Is there an obvious way Im just not seeing?

If there isn't a solution then I think there could be a feature request to do some sort of reverse of 'Track layer to video'.
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Víctor Paredes
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Post by Víctor Paredes » Mon Oct 18, 2010 10:46 pm

Ok, you have to invert the tracked movement by hand. I mean, using a logical layer order. It's not easy to explain, but basically you put the video inside a couple group layers and flip them to invert the tracked movement.

So here is it a kind of tutorial step by step:

- track your video
- create a group layer (Group 1) and apply track layer to video
- put your video inside Group 1
- Create a new group layer (Group 2) and flip it on X and Y axis
- Put Group 1 inside Group 2
- Flip the video layer on X and Y axis

That's all, I think. So your layer window should look like this

_Group 2
___Group 1
_____video layer


I hope this helps.
Víctor Paredes
Former Moho Product Manager
Rigged animation supervisor in 'My father's dragon' - Lead Moho artist in 'Wolfwalkers'
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slowtiger
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Post by slowtiger » Tue Oct 19, 2010 9:00 am

Hm, wouldn't it be easier if you rotate the video 180° before you track, then return it to 0° in the end?
kavlor
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Post by kavlor » Tue Oct 19, 2010 10:50 am

Ok thanks it give me a basic idea of what to do.

I put the video in a group and used a clone of the video to track the inverted track of the original then moved the whole group to correct the offset.Worked perfect.
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Víctor Paredes
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Post by Víctor Paredes » Tue Oct 19, 2010 11:46 am

slowtiger wrote:Hm, wouldn't it be easier if you rotate the video 180° before you track, then return it to 0° in the end?
Hum, that sounds logical... I'll try at home. Thank you, slowtiger.
Víctor Paredes
Former Moho Product Manager
Rigged animation supervisor in 'My father's dragon' - Lead Moho artist in 'Wolfwalkers'
Cartoon Saloon
My Youtube Channel - My webinars
Genete
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Post by Genete » Tue Oct 19, 2010 1:44 pm

slowtiger wrote:Hm, wouldn't it be easier if you rotate the video 180° before you track, then return it to 0° in the end?
You need to rotate it in both x and y axis or just rotate the z axis what's the same effect.
-G
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