Adobe Flash Professional CS3 User Manual
Page 249
FLASH CS3
User Guide
243
See also
“Break text apart” on page 271
“Tweened animation” on page 240
Create a motion tween by using the Motion Tweening option
1
Click a layer name to make it the active layer, and select an empty keyframe in the layer where you want the
animation to start.
2
To create the first frame of the motion tween, do one of the following:
•
Create a graphic object with the Pen, Oval, Rectangle, Pencil, or Brush tool, and then convert it to a symbol.
•
Create an instance, group, or text block on the Stage.
•
Drag an instance of a symbol from the Library panel.
3
Create a second keyframe where you want the animation to end, and leave the new keyframe selected.
4
To modify the item in the ending frame, do any of the following. To tween the color of elements other than
instances or text blocks, use shape tweening:
•
Move the item to a new position.
•
Modify the item’s size, rotation, or skew.
•
Modify the item’s color (instance or text block only).
5
Click any frame in the tween’s frame span and select Motion from the Tween pop-up menu in the Property
inspector (Window > Properties > Properties).
6
If you modified the size of the item in step 4, select Scale to tween the size of the selected item.
7
To produce a more realistic sense of motion, apply easing to the motion tween. To apply easing to a motion tween,
use the Ease slider to specify an easing value for each motion tween you create, or use the Custom Ease In/Ease Out
dialog box to more precisely control the speed of the motion tween.
Drag the arrow next to the Easing value or enter a value to adjust the rate of change between tweened frames:
•
To begin the motion tween slowly and accelerate the tween toward the end of the animation, drag the slider up or
enter a negative value between -1 and -100.
•
To begin the motion tween rapidly and decelerate the tween toward the end of the animation, drag the slider down
or enter a positive value between 1 and 100.
•
To produce a more complex change in speed within the tween’s frame span, use the Custom Ease In/Ease Out
dialog box.
By default, the rate of change between tweened frames is constant. Easing creates a more natural appearance of accel-
eration or deceleration by gradually adjusting the rate of change.
8
To rotate the selected item while tweening, select an option from the Rotate menu:
•
To prevent rotation, select None (the default setting).
•
To rotate the object once in the direction requiring the least motion, select Auto.
•
To rotate the object as indicated, and then enter a number to specify the number of rotations, select Clockwise
(CW) or Counterclockwise (CCW).
Note: The rotation in step 8 is in addition to any rotation you applied to the ending frame in step 4.