Adobe AFTER EFFECTS 5.5 Help Manual page 104

Adobe After Effects Help
Using Help | Contents
To nudge a layer by 1 pixel at the current magnification, press the Left, Right, Up, or
•
Down arrow key.
To nudge a layer by 10 pixels at the current magnification, hold down Shift as you press
•
the Left, Right, Up, or Down arrow key.
To constrain horizontal and vertical movement while dragging a layer, press Shift after
•
you start dragging the layer in the Composition window.
To snap the edge of the layer to the edge of the Composition window frame, press
•
Alt+Shift (Windows) or Option+Shift (Mac OS) after you start dragging the layer in the
Composition window.
Modifying a motion path
You can modify a motion path either by changing an existing keyframe or adding a new
keyframe. A motion path is less complex and generally easier to modify when you use
fewer keyframes to describe the path. If you want to add a new keyframe to a motion path,
make sure that the current-time marker is positioned at the time you want the new
keyframe to occur. If you want to change an existing keyframe, make sure that the current-
time marker is positioned at the existing keyframe; otherwise, After Effects adds a new
keyframe. For information on controlling speed on a motion path, see "Controlling speed
along a motion path" on page 132.
The motion-path controls you see in the Composition window depend on the options
selected in the Composition window menu. For maximum control over the shape of a
motion path, use the pen tools and the spatial interpolation methods that After Effects
provides. See "Comparing interpolation methods" on page 123 and "Applying Bezier inter-
polation graphically" on page 127.
A B
A. Layer handle B. Layer keyframe C. Direction handle on direction line
D. Composition window menu E. Layer path
To move a position keyframe:
1 Display the Timeline and Composition windows for a composition.
2 In the Timeline window, select the layer you want to modify.
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