Autodesk Combustion 4 Fundamentals Courseware

Four- Point Tracking

Lesson 30

In this lesson, use four-point tracking to composite footage of an actress onto a computer screen that moves.

Overview

You can use four-point tracking to pin the corners of a foreground clip to a background clip. The result of this lesson is similar to the corner-pinning result from 20. However, in this lesson you use the Tracker to track a computer screen in the background layer that moves as the camera pans. With motion tracking, the foreground actress layer is automatically pinned to the monitor layer using the tracking data.

In this lesson:

• Change the properties of a layer to select its four corners.

• Pin the ...