Corner Pin (PB only)This effect distorts an image by changing the position of each of its four corners. Use it to stretch, shrink, skew, or twist an image, or to simulate perspective or movement that pivots from the edge of a layer, such as a door opening. You can also use it to attach a layer to a moving rectangular region tracked by the Motion Tracker. See About tracking motion (PB only). You can move the corner pins in the Composition window or the Effect Controls window. ![]() |