 |
Using corner pinning options (Pro only)
Most tracking options track a single feature in a motion layer. This single feature determines the position keyframes that are used to animate the anchor point (or center) of the target layer. Unlike standard tracking, the corner pinning options track points that are used to animate the corners of a typically rectangular target layer. Corner pinning is useful for adapting the target layer within a specified area of the motion layer. For example, you can track four corners on the side of a moving bus to attach a billboard. Corner pinning options allow you to either skew the target layer or simulate a change in perspective. The attach points, not the feature regions, determine the placement of the target layer's corners. By default, the attach points are centered within the feature regions.
After Effects gives you two corner-pinning options when tracking: Parallel Corner Pinning and Perspective Corner Pinning. These options create multiple tracking points and apply them to the target layer using the Corner Pin effect.
Related Subtopics: