Re: FLASH: Couple of questions

[John Croteau]

Hi Christian,


> 1)I've been creating movies at the default 12fps but a lot of the best

> stuff on the web seems much smoother than the stuff I am producing - is

> this because of them using a higher fps

Sometimes but this is going to help but only if you are tweening a

single item at a time and/or if using basic shapes (oval, triangle or

rectangle) or your viewer has a very powerful computer.


> (I am not moving around hugely complicated images,

Not huge is the key here. Smoother animations are done with SMALL not

medium sized objects. If you are importing an object then it is likely

to be too complicated to provide the smoothest tweens. Using

uncomplicated and highly optimized symbols or animating in a small area

of the canvas will create smoother animations.


>  but there seems to be a slow down if there is more

> than one thing tweening at once -

Additional Tweens take more computing power and will generally affect

the performance.


> 2) Is there a performance degradation if there are lots of concurrent

> tweens happening on separate layers?  Could I rectify this by replacing

> the tweens with keyframes

I find generally no speed increase by using keyframes instead of tweens,

only a larger file and thus longer download time which may affect the

performance.


> (eye4u's site prompted this thought as they

> seem to have a lot of stuff moving around at once, zooming in and out)

They tween only simple shapes or use only a small area of the screen.

In their button animations they are quite clever. There is usually an

incomplete screen draw on the edges of fast moving animations (this

varies with computer and video speed). By overlapping the circles this

incomplete redraw is partly obscured making it appear smoother.


-----------                               -----------------------

John Croteau

croteauerols [dot] com (mailto:croteauerols [dot] com)

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