Apple Motion 2 Manuel d'utilisateur télécharger pdf (Page 158)

158 Chapter 5 Extra Credit

To reset tangent handles:

Press Command and drag the end of a handle.

To change a control point from smooth to linear:

Control-click the point, then choose Smooth or Linear from the shortcut menu.

For more information, see Chapter 11, “Using Shapes and Masks,” in Motion Help.

Using a Shape as a Mask

In the following example, an animated rectangular shape is applied to an image as an

image mask. The shape grows over time, and is used as a “wipe” to reveal the image

below the masked image in the layer stack.

The following images show the animated rectangle shape before it is applied as a mask

to the stingray image (in order to reveal a dolphin image below the stingray image in

the layer stack).

Once the animated shape is applied as a mask to the stingray image, the dolphin

image is revealed.

To create a rectangular shape:

1 In the Toolbar, select the Rectangle tool (or press R).

The pointer changes to a “+”.

2 Drag in the Canvas.

Rectangle tool

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Apple Motion 2 Manuel d'utilisateur Page 158