majorspoilers.mov layer in the Timeline panel.Positioning the track points
You’re ready to add the track points to the multipoint_tracking.mov layer.
1. Select the multipoint_tracking.mov layer in the Timeline panel.
2. Choose Window > Tracker to open the Tracker panel, if it isn’t open.
3. In the Tracker panel, choose multipoint_tracking.mov from the Motion Source menu.
4. Select the multipoint_tracking.mov layer again, and then click Track Motion.The desk scene opens in the Layer panel, with a track point indicator in the center of the image.
However, you will be tracking four points in order to attach the animated movie to the computer
screen.
5. Choose Perspective Corner Pin from the Track Type menu.Three more track point indicators appear in the Layer panel.
6. Drag the track points to four different high-contrast areas of the image. The four corners of
the computer screen provide excellent contrast. Use the image below as a guide. (Because
the areas of high contrast are also where you want to attach the majorspoilers layer, you
don’t need to move the attach points.)