Reducing CPU usage of Flash animation

Hello!
I have a simple Flash animation - fading in and out different
images. I have done it with an Actionscript (changing alpha value).
That worked ok only on new processors - on all others it eats 100%
CPU. I then tried to do it with timeline (motion tween between 2
alpha values of picture). Now it is considerably better, but on
CPUs lower than 2 GHz it still eats 100% CPU. Size of animation is
940x160. How can I do this fading correctly so that CPU will not
have to do so much calculations?? Please help me!

sent too soon - TINT to the solid white background - always
avoid alpha whenever possible as flash
will have to calculate the difference in colors throughout
the tween - Tinting is far more processor
friendly.
Chris Georgenes / mudbubble.com / keyframer.com / Adobe
Community Expert
Chris Georgenes wrote:
> use TINT tweens instead of Alpha.
>
> Chris Georgenes / mudbubble.com / keyframer.com / Adobe
Community Expert
>
>
> Tiansen wrote:
>
>> I uploaded banner animation at
http://www.process.si/banner-slo.swf.
I
>> dont use any class with it now because it is done
entirely with
>> timeline and motion tween between two images with
different alpha
>> value. It is only a sample of what I try to achieve.
If I understand
>> you correctly, roozbeh, you suggested to use white
rectangle and
>> adjust alpha value of that rectangle. Why is that
better than changing
>> alpha of original image?
>> I also noticed that size of animation does matter!
If you put some
>> program, i.e. task manager over a part of animation
it eats
>> significantly less CPU. It depends on percentage of
animation area
>> covered.
>>

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When reporting issues with video or audio, it's also helpful to get your system hardware and driver details. Instructions for finding this information can be found here:
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HI,
Try here.
http://rentzsch.github.com/clicktoflash/
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