Apple Shake 4 Tutorials Instrukcja Użytkownika Pobierz pdf (Strona 222)

222 Chapter 7 Tracking and Stabilization

6 Insert a CornerPin node above the Stabilize node. CornerPin is used to position the

foreground over the background.

This technique has several advantages:

• More flexibility in your compositing

• Better control over transform concatenation of the foreground

• Better control over premultiplication of the foreground

• Accurate pass-through of upstream onscreen controls

• Intuitive control of foreground positioning

• Access to the rotation and scaling values for two-point transforms

To switch the tracking from the MatchMove node to a Stabilize node:

1 In the Node View, select AddShadow1.

2 Shift-click Transform–CornerPin.

The Shift key modifier installs CornerPin off as a new branch in the node tree.

3 Connect a Transform–Stabilize node to the CornerPin node. Normally, you attach the

Stabilize node to the bus2 node to start tracking, but you already have your tracks in

MatchMove1.

4 Connect an Over node to Stabilize1.

5 Connect bus2 to the second input of Over1.

Next, copy the tracks from MatchMove1 to Stabilize1.

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