Adding Motion Tracking Data to a Layer Mask

[LighthouseMedia]

Okay everyone this is killing me is there anyway to add motion tracking data to a layer mask? I know there has to be a workaround I'm just not sure the best way to do it. Basically I have a garbage matte in keylight I need tracked to a layer, and I don't want to do it by hand. Anyone?

[MiniMan13]

If the mask is a layer in itself, Just parent the mask to the other layer.
Thats if i understood your question correctly :-/

[Schmovies production]

did you find a solution? When it happened to me i asked on this forum the same question. Kai gave me the best solution, Rotoslaves plugin, people that rotoscope by hand for you.
Btw i heard that Silhouette is the best plugin to automate rotoscoping. I will test it one day...

[Sacksnack]

When you motion track you could apply that to a null object, then parent all the layers you want to the null object. They will all follow the tracking data. Basically what miniman13 said.

[NickJushchyshyn]

Yeah, Silhouette rocks. You can apply trackers to individual nodes of of a mask outline which can be really really handy.

If you created the garbage matte with keylight operations, you could precomp the setup and apply the precomp to a tracker (though a keylight-created garbage matte should follow the action on it's own right?)

If you're talking about a manually created mask, which you are then feeding into keylight, that could be a little trickier if you want to use a tracker instead of keyframing (which isn't usually all that hard really, especially if you're not changing shape).

You might consider creating just using a solid over the plate (in the color of your keying screen) with a subtraction mask applied to puch a hole in it (your garbage mask) and tie the position of that layer to a track from your plate. Precomp the result and feed it to keylight.

Just a thought.