Brightness Tween

Brightness Tween

Flash CS4 Tutorial


How to Change Brightness Value Over Time in Flash



Brightness Tweening works great to fade-in objects over a black or white background. If you are fading in an object with a multi color background you might consider an Alpha Tween. For more information, see topic Transparency (Alpha) Tween.


Step One

Add an oval shape to the stage using the Oval tool (o key)

Step Two

With the oval shape selected, convert it to a Movie Symbol (F8)(Modify > Convert to Symbol).

Step Three

Click frame 20 of and press F6 (Insert > Timeline > Keyframe).

Step Four

Right-click the timeline between your keyframes and choose Create Classic Tween from the pull-down menu.

Step Five

Click the keyframe at frame one, then click the oval object.

Step Six

From the Properties panel (Cmd/F3 (PC-Ctrl/F3)), open the Color Effect section and select Brightness from the Style menu.

Step Seven

Set Brightness to 100% if you have a white background or 0% for a black background.

Step Eight

To render your swf file, press Cmd/Return (PC-Ctrl/Enter).

Classic and Motion Tweens

In this example you could use a Classic Tween or Motion Tween. For more information, see topics, Classic Tween or Motion Tween.

Brightness verses Alpha Tweens

Alpha Tweens require more processor power than Brightness Tweens. If you have a situation where either type of tween would work, it is best to use a Brightness Tween.


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