2011

As in tracking, when you choose to stabilize combinations of position, scale,
and rotation simultaneously, the roles of each of the points are additive:
■ If you track both scale and rotation, the first point indicates the pivot point
of the rotation; the second indicates the arc of the rotation; and the
distance between the two indicates the scaling changes.
■ If you track position at the same time, the first point also indicates the
vertical/horizontal motion you want to eliminate.
■ If you track scale, choose two reference features that are at the same Z-depth
throughout the shot. For example, if you have two rows of trees lining a
driveway, choose two trees at about the same Z-depth (distance away from
camera).
■ If you track rotation, choose two reference features that are as far as possible
from each other. This gives the Tracker the maximum amount of roll to
analyze and correct.
■ If you do 2-point stabilizing, each of the two reference features stays fixed
throughout the stabilized clip. That is, if you are stabilizing scaling, the
scaling change is eliminated. If you are stabilizing rotation, the rotation
is eliminated.
To perform 2-point stabilization:
1 Track the video clip using a Tracker node with 2 trackers.
2 Connect the clip into a Transform2D node.
3 Set Transform Type to 2 Point.
4 Click on Set Source Trackers and choose the 2 trackers.
5 Click on Set Destination Trackers and choose the same 2 trackers, but
select the frame number to which you want the clip stabilized. This will
set the destination points to a non-animated value, positioning the
stabilized clip to match the desired frame. Alternatively, you can just edit
2-point Stabilizing | 789