Retaining Manual Adjustments

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‌Retaining Manual Adjustments

Without user action, a manual alignment will not be retained if you re-solve the shot, either from scratch (Automatic mode) or incrementally (via Refine). The solver is affected only by constraints, and it has no way to tell what you were doing with your manual alignment. If you manually align, add some 3D objects to the scene, then adjust some trackers and re-solve, you will have to re-align manually, which is frequently difficult to reproduce exactly.

Fortunately, you can avoid this problem, with a little foresight.

First, if you used the Place Tool, then manually adjust, your work will have already been done for you: the Place Tool establishes a set of constraints that will reposition the scene the same way after a re-solve.

If you did not use the Place Tool, then you must establish the constraints manually. (This process works for normal, object, or tripod shots.)

 Select several reliable trackers that are distributed throughout the scene, perhaps six to ten,

 open the coordinate system panel,

 click Set Seed,

 change the Lock type drop-down to Lock Point,

 click the Seed button to turn it off if you like; it does not matter here.

If you re-solve the scene again, the scene will be re-aligned to match up these trackers, and therefore the rest of the scene, as well as possible.

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