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Matching move to write on shape?

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Lukas Pytlik
Matching move to write on shape?
on Mar 30, 2009 at 3:38:53 pm

Hey there! Is is possible to do some shape write on, lets say a draw path and then match the move of the path with camera?


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Jim Johnson
Re: Matching move to write on shape?
on Mar 30, 2009 at 4:58:46 pm

Howdy,

Sure, just animate your shape (create your write-on effect), then use the Match Move behavior to do the tracking and matchmoving. Keep in mind, though, that Motion's tracker is 2D, so if you need a 3D matchmove, you'll need to use PFHoe or SynthEyes to do the tracking, both of which can export the 3D track to Motion.



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Lukas Pytlik
Re: Matching move to write on shape?
on Mar 30, 2009 at 6:22:17 pm

Thanks, thats the way i was trying to do it. But the fact is that the camera didn't follow my path. It just stayed in one place. I was thinking about some backdoor solution, i mean putting some object in front of the shape and, analyze its move and then match but but it seems way 2 complicated.
Any ideas what can be the problem?


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Jim Johnson
Re: Matching move to write on shape?
on Mar 31, 2009 at 7:05:37 pm

Howdy,

In a 2D matchmove, the camera doesn't move (there is no "camera", per se). Instead, you're matchmoving an object to the onscreen position of a tracking feature. With a 3D track, the tracker extrapolates the movement of the camera used to shoot the footage, and you end up with a camera (in Motion) that follows that real-world camera movement. As I said, to do a 3D track you'll need to use a third-party solver, like PFHoe or SynthEyes.

Can you describe, more clearly, what exactly you're trying to do?



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