with planar tracker when it looses its why by objects passing in front of
you just do the same as a 2d tracker, find a small section of something else
roughly in the same plane track it for a few frames till the objects passes
by, and then move the tracking spline back to where it was before.

-deke

On Tue, Aug 30, 2011 at 15:01, Ned Wilson <[email protected]> wrote:

> So there are a couple of instances where PlanarTracker gets pretty
> confused. For example, say you are trying to track a television set which
> moves out of frame. This would confuse PlanarTracker, or it least it does in
> my limited experience using the tool.
>
> What I have done in these instances is to use CameraTracker and camera
> solve the shot, being sure to seed plenty of points around the TV itself.
> Then, I would select a group of solved 3d points, right click on them and
> put a card through them, and then use the card and the solved camera to
> project some roto on, for instance. Alternatively, I may select a few of the
> solved points, and using a few Reconcile3D nodes, create a Tracker node.
>
> Either way, what I'm doing is using solved 3D structure to create a plane,
> and then using that to track something into the shot. Is there an automated
> way to simply turn 3D solved points into a PlanarTracker node?
>
> -n
>
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