Use motion tweening to tween the changes in properties of instances, groups, and type. Flash can tween position, size, rotation, and skew of instances, groups, and type. Additionally, Flash can also tween the color of instances and type creating gradual color shifts or making an instance fade in or out. To tween the color of groups or type, make them into symbols. If you tween an object that is not a symbol, Flash automatically converts it to a symbol and names it tween1, tween2, tween3, and so on. See Creating instances.
When tweening position, you can make the object move along a non-linear path. See Tweening motion along a path.
The position and size of the spacecraft in the three tween frames was tweened from the first and last keyframes.
To motion tween an instance, group, or type block:
| 1 | Select an empty keyframe, draw an object on the Stage, or drag an instance of a symbol from the Library window. |
| 2 | Choose Insert > Create Motion Tween. If you drew the object, Flash automatically converts it to a symbol and names it tween1, tween2, and so on. |
| 3 | Insert a range of frames over which you want the animation to occur by choosing Insert > Frame where you want the animation to end. |
| 4 | Move the object, instance, or type block on the Stage to the desired position. A keyframe is automatically added to the end of the frame range.
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| 5 | To set motion tweening properties, double-click the keyframe at the end of the motion tween: |
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To tween the size of a group or symbol, turn on Tween Scaling. |
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To make the group or symbol rotate, choose an option from the Rotate list and enter the number of rotations in the box on the right. If you don't enter a number, no rotation occurs. Automatic rotates the object in the direction requiring the least motion. Clockwise or Counterclockwise make the object rotate as indicated, as many times as you specify. |
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To orient the base line of the group or symbol to a path, turn on Orient to Path Direction. See Tweening motion along a path. |
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To change the Easing settings, drag the Easing slider toward Ease In to slow the beginning of a transition, or toward Ease Out to slow the end of the transition. |
| The closer the slider is to the end of its range in either direction, the more pronounced the acceleration or deceleration. When the slider is closer to In, the change begins slowly and gets faster at the end. With easing left in the middle, tweening occurs at a regular rate through all frames. By default, the rate of change through tweened frames is constant. Easing creates a more natural appearance of acceleration or deceleration in motion by decreasing the rate of change toward the beginning or ending frames of the tween. | |
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To ensure that the instance loops properly in the main movie, select Synchronize Symbols. For more information, see Synchronizing graphic instances. |
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To automatically snap the instance you are animating to a motion guide, select Snap to Guide. |
| 6 | To tween the colors of an instance, double-click the instance and modify color properties as described in Changing the color and transparency of an instance. Flash automatically adds a new keyframe each time you double-click the instance at tweened frames. |
| If you change the number of frames between the two keyframes, or move the group or symbol in either keyframe, Flash automatically tweens the frames again. | |
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