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After you have set up your constraints, you should check your work using the Constrained Points viewport layout, as shown here:
This is the view with the recommended (front/back-variant) constraint setup in Z- Up coordinates, as applied to a typical shot, after solving. Only trackers with constraints are listed, along with what they are locked to (coordinates or another tracker).
Hint : within the Constrained Points view, the up-arrow and down-arrow keys scroll through only the constrained trackers, rather than through all trackers as they do normally. This makes it easier to see where these are in the viewports, for example.
Warning : a row has a red background if the tracker is a zero-weighted tracker (ZWT). ZWTs don’t affect the solve, which is why they are in red. (The constraint settings affect only that ZWT.) Similarly, the Locked To column is in red when a tracker is locked to a ZWT.
Fine print : The Constrained Points view can also show seed points that are not constraints, if the Show seeds option is checked on the right-click menu. Seed-only trackers may be used as low-accuracy estimates to start a solve, without affecting the ultimate solved coordinates.
The Axes column shows what axes are locked, among X, Y, Z, or D(distance). If a + is present, the tracker is a seed. If an asterisk(*) is present, the lock is to a tracker on a different camera/object. If the letter s is present, it is a stereo lock. If the letter m is
present, there is a link to a different object, and one or the other is a moving object, which is unusual and bears investigation.
The Locked To column shows the effective locks; it can also show the name of a target tracker that the row’s tracker is locked to, and any axis polarity information.
The distance column has a value only if a distance constraint is present.
The solved position is shown, along with the 3-D error of the constraint. For example, if a tracker is located at (1,0,0) but is locked to (0,0,0), the 3-D error will be 1. It will have a completely different 2-D error in hpix on the coordinate system panel.
Tip : The Error column header contains the RMS 3-D error distance for all constrained trackers.
Hint : You can adjust the width of the columns by dragging the gutters, located immediately to the left of the column headers (Tracker, Locked To, Distance, etc), which extend the entire height of the viewport.
Hint : Change the constrained-points view sort order by clicking on Tracker or Error on the header line or right-click/Sort by Name or Sort by Error.
The constrained points view lets you check your constraints after solving, giving you the resulting 3-D errors, or check your setup before solving, without any error available yet. You can select the trackers directly from this view and tweak them with the coordinate system panel displayed.
The Constrained Points view has a large right-click menu that enables you to rapidly see or manipulate coordinate system settings.
©2024 Boris FX, Inc. — UNOFFICIAL — Converted from original PDF.