Shape Morphing - Page 3

To create the tween we now select the first keyframe and open the Frame Properties box (Modify > Frame) and click on the Tweening Tab. Next select Shape from the Tweening pop-up menu. The dialog box should look like this.

Here you can select the Blend Type. This determines how flash will perform the tween:

Distributive is a smoother transition and a lot more irregular.
Angular maintains corners and straight lines during the transition.

You can also modify whether the animation is faster at the beginning of the tween, constant throughout or faster toward the end of the tween with the use of the Easing Slider.

Drag the slider towards Ease In for a slower beginning, or towards Ease Out for a slower end to the tween. When the slider is in the middle (the default) the morph occurs at a constant rate.