Setting up the shot (Pro only)

For best results, first prepare the object or region you are tracking before you begin filming. Because After Effects compares pixels from one frame to the next to produce an accurate track, attaching high-contrast markers to the object or region lets After Effects more easily follow the motion from frame to frame. Lightweight, brightly colored balls, such as ping-pong balls, placed on the feature work particularly well to preserve the shape of the track point. The number of markers you use corresponds to the number of points you are tracking. For example, if you're tracking four points using the Perspective Corner Pinning option, you need at least four features to correspond with the four corners of the layer you want to attach to your filmed footage. The more markers you add to your subject before shooting, the more features you'll have for tracking later.