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A. Kramer’s Set Extensions
If anyone has gotten through Andrew Kramer’s tutorial on set extensions could you tell me what settings you used under Track Controls-Options? I’ve tried many different settings but the results I get look jittery.
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3 Replies
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The settings don’t matter as much as how you specify the track points. You need to track rotation, which will give you two track points. Also I should point out, as Andrew did, that if your camera is moving towards or away from the object of interest, or zooming (rather than just panning) it won’t work. OK, having done this, you need to choose decent track point positions. They should be areas of high contrast. As Andrew has suggested in later tutorials, you can improve the “trackability” of your footage by applying effects to it. For example, apply the curves effect and add a contrast curve (make the line look like a shallow S). Don’t make it too contrasted, just add a little. Then add the effect “remove grain” and change the preview setting to “final render”. Then precompose your footage (move all the layers to the precomp) and motion track the precomp. Keep an eye on the track points as the track is in progress, and if the points start to jump, stop and select a new track point. If this doesn’t work, you may have to record some new footage. Try to think what would make a good track point in your scene as you film.
Simon Bonner
youtube.com/simonsaysFX -
Thanks Simon. I’m working on Andrew’s project. I will try adding effects as you suggested. I’m using AA 6.5 but I doubt that should make any difference in the tracking.
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I made the search area for the track points(the outside box) quite a bit bigger and that seemed to do the trick.
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