2017

NOTE The first tracker is for position data and the second tracker is for rotation and scaling data. If rotation
and scaling were not selected, the second tracker has no effect.
10 Click Analyse.
Fine-tune your analysis if necessary. For more information, see
Stabilizing and Tracking (page 717).
11 Click Return.
The Garbage Mask menu reappears. The tracking data is applied to the mask.
12 Fine-tune your mask if necessary.
To animate individual vertices on a mask with tracking:
1 Select a vertex or a group of vertices on a mask.
2 Access the Garbage Mask menu.
The Garbage Mask menu appears.
(a) Clip box (b) Adjust box
3 From the Clip box, select the clip you want to track.
NOTE When tracking vertices on a mask using the Garbage Mask menu in the GMask node in ConnectFX
or the Modular Keyer, you can only track the front clip.
4 From the Adjust box, select Adj Tangents.
The tangents for the selected vertices are adjusted while the points are being tracked.
5 Go to the frame where you want to start tracking.
6 Click S.
The Stabilizer appears. The trackers are automatically placed in the position of the selected vertices.
Reposition if needed.
7 Click Analyse.
Fine-tune your analysis if necessary.
8 Click Return.
The Garbage Mask menu reappears. The tracking data is applied to the selected vertices on the mask.
9 Fine-tune your mask if necessary.
Applying Motion Blur to Garbage Masks
Use motion blur on a garbage mask to compensate for the movement of an object in a clip. Motion blur is
created according to the animated movement of a mask's vertices. The amount of blurring is affected by the
speed of the mask's movement.
Motion blur can account for the natural blurring of an object as it moves or rotates in space. For example,
assume you are drawing a garbage mask around a car as it turns a corner. Because you are using an overhead
shot, the edges of the car where motion blur occurs change as the car accelerates and rounds the corner. By
GMask | 761