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Motion Tracking question
I’m not a Motion expert so I apologize if this seems like a stupid question.
I have a shot of a person holding a cell phone. I want to replace the image on the cell phone with a still image I have.
imported the shot into Motion and used the behavior: Analyze Motion on it.
I then took the jpg and told it to match the movie (using, as a source the Analyze Motion).It worked perfectly except for the end frames. In the shot a person lifts the phone. It creates a huge amount of blur that the motion tracker can’t follow. (And, I need that bit of motion to make the cut to the next shot work).
No problem I thought. I will just manually set key frames for the last few frames. The problem is, when I have the motion tracker set, it wont let me use keyframes — it somehow turns off the ability.
Also, the motion tracking behavior is not a distinct layer. I thought I could just have an “end point” when the motion tracking behavior would be done, but no – it analyses the entire shot and I cant turn it off for one region. (It puts a cog wheel next to the layer but thats the only indication it has been tracked)
So, I guess what I’m asking is how would I turn off the motion tracking or over ride it for a while while I manually key in certain areas?
If you want to see what I mean heres the shot and the Jpeg:
https://homepage.mac.com/dbertman/filechute/Sc7PhoneLATEST.zipThanks
David
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1 Reply
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You can always change a behavior so it does have key frames, that way you can key frame the end. Go up to Object, Convert to keyframes. Trust me, it will take 3 to 5 minutes for motion to do the conversion on motion tracking. Hope this help.
Stephen Smith
Salt Lake VideoCheck out my DVD Money Making Graphics & Effects for Final Cut Studio 2
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