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Motion Tracking – Lost Reference Point
Hi,
Wondering if anyone has input on how to motion track an object when the reference points you are using go out of frame. I’m attempting to track a logo to a podium in a shot where the camera is on a dolly and pans across the front and then up and away from the podium. Because of this, I’ve lost the reference points for my track go out of frame fairly significantly. When I’ve tried revised the tracking points, it shrinks the scale or position of the logo. Does anyone know of a way to change the reference points to track that kind of camera move? Or does it need to be done manually?
Thanks in advance!
Alana -
3 Replies
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You can use a series of null objects to link tracking points that go in and out of frame. Though simple, it would take a lot of words to explain, so my best advice is to go to videocopilot.net and watch the tutorial on 3D Set Extensions – he does a great job of covering this topic exactly, within that tutorial.
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If your reference point goes out of frame, you can hold in alt and move your tracker to a new point. If you have done this correctly you will notice that the boxes have moved, but the crosshair stayed in the same place.
What this does is uses a new reference point to track, and applies the movement to your existing track.
I hope that helps.
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THAAAAAAAAANNNNNKKKKSSSSS… seriously … thanks
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