Once the points or shape are tracked, you can move on to apply the tracked model either to:
- match-move an image video to follow the tracked motion
- stabilize the video
The process is very much the same either way.
Match-move a logo
We will show here how to match-move a logo to make it stick on the side of the street-car that we tracked in the point-track section
Let's add a layer with our logo on top of the tracked footage's layer.
Position the logo
Add a CornerPin modifier to the Transform.
Note that the frame at which you set the CornerPin is important: Since we are gong to manually place the CornerPin and place it where desired, we don't want the tracker to move the logo at that frame.
We call this frame the Reference frame. You can set the Reference frame in the Model section of the Tracker. A button allows to set the Reference frame to the current frame, which is useful if it doesn't match the frame at which you manually moved the CornerPin.
copy-link the Model parameter from the timeline, or select the row and type Ctrl+C.
Add a Follow-Track modifier to the Transform param of the logo layer to match-move
Now paste-link the model which was copied before to the Model parameter of the Folow-Track modifier
That's it! Your logo is now match-moved
Note that this is a link: if you re-track or refine the track, the model will update the match-move automatically. This workflow makes it possible for example to first setup the Follow-Track modifier and then do the tracking to better assess where the tracking is good enough.
Similarly to match-move, create a Follow-Track on the Transform param of the Layer to stabilize (probably the layer you tracked) and set the Mode parameter of the Follow-Track to Stabilize.