Apple Motion 3 - Manual (Page 277)

Chapter 3 Basic Compositing 277
Corner-Pinning Objects
You can stretch an object into different polygonal shapes using the Four Corner
controls, which allow you to create false perspective effects and simulate 3D effects
and placement within your composition.
To corner-pin an object in the Canvas:
1 Click and hold the Select/Transform tool, then choose the Adjust Four Corner tool from
the pop-up menu.
2 In the Canvas, drag each of the four corner handles to stretch the object into the shape
you want.
Note: Just as you can with the Scale handles, you can reverse the corner handles to flip
the image. However, changing the angle of any one corner more than 180 degrees can
produce unexpected results.
After you have corner-pinned an object, you can quickly revert back to the object’s
original shape by turning off the object’s Four Corner checkbox in the Properties tab of
the Inspector. Doing so resets the shape of the object without resetting the corner-
pinning shape you defined in the Four Corner parameter of the Properties tab.
Before corner-pinning After corner-pinning