Adobe AFTER EFFECTS 5.5 Help Manual page 110

Adobe After Effects Help
Using Help | Contents
To flip vertically, type a negative Height value.
•
A
A. Width 100, Height 100 B. Width -100, Height 100 C. Width 100, Height -100
D. Width -100, Height -100
Setting layer opacity
By default, a layer is displayed at full opacity except for areas excluded by a mask or alpha
channel. Make a layer more transparent by setting an opacity value of less than 100%. Set
and change opacity only in the Timeline window. For information on setting a property in
the Timeline window, see "Setting and animating a layer property in the Timeline window"
on page 114.
Setting layer rotation
A layer can rotate any number of degrees in relation to its original orientation. You can
rotate a layer as many times as you want, which is useful when you want to spin an object
continuously over time. You can animate a layer's rotation in the Composition window
using the rotation tool, or in the Timeline window by typing a revolution or degree value.
You can rotate a layer partially or completely outside the frame. Rotation in 3D adds other
options for rotation. See "Understanding 3D rotation" on page 232.
When you rotate a layer, it rotates around its anchor point. For more information, see
"Setting and animating an anchor point" on page 111.
To change the angle of a layer by dragging in the Composition window:
1 Select the rotation tool ( ) from the toolbox.
2 In the Composition window, click anywhere on the layer and drag in an arc around the
layer. For finer control over rotation, drag in a wide arc away from the layer's anchor point.
To add multiple rotations, drag the rotation tool around the layer continuously for the
desired number of rotations. To constrain rotation to 45-degree increments, hold down
Shift as you drag.
To rotate a selected layer by nudging it 1 degree:
Press + or – on the numeric keypad.
To rotate a selected layer by nudging it 10 degrees:
Hold down Shift as you press + or – on the numeric keypad.
Using Help | Contents
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B C
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Animating Layers
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