Reusing a Track Result

You can reuse an entire tracked plane or a single track.

Reusing a Tracked Plane

You can use a plane you’ve already tracked to analyze a larger plane situated on the same plane.

1.

Make sure you’re in the same frame as you used to draw the previous shape.

2.

Draw a shape on the same plane as your previously tracked shape. Make sure the new shape is in the same PlanarTrackLayer as the first one in the stroke/shape list.

3.

PlanarTracker has now placed your new roto shape on the same plane as the old one. If you now scrub in the timeline, you should find that your new shape sticks with the camera movement.

Reusing a Single Track

You can also reuse your tracked points to verify that the overall results are sticking to your footage.

1.

Track a plane as described under Tracking a Plane, and adjust the results if necessary.

2.

When you’re happy with the tracking results for that plane, you can drag a corner of your tracked shape and place it on a specific detail that may not be getting tracked correctly. Note that you're moving the roto shape locally, and not affecting the actual track results.

3.

Scrub through the frames to see if the point stays on the detail as you expect.

4.

If drifting occurs, drag the point to correct it.