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Subject: Re: FLASH: the smooth and the jerky
From: Ward Johnson
Date: Wed, 12 May 1999 21:15:16 +0100



ya, Marc,
Flash does have 2 redraw each frame's gradient because it is
pixellated screen inside of a vector box or shape. Each time that outline
moves, the screen properties have a new shape defining its borders.
Ward J.
>
>At 02:02 PM 5/8/99 -0600, you wrote:
> >
> >greetings,
> >
> >i am new to flash and to the flasher list, but i was wondering what are
>the
> >parameters that affect the jerkiness of an animation and in particular,
> >text tweening. is it frames per second? cpu speed? the amount of change
> >versus the frame length of the tweening?
>
>It's all the above. Also, the more text you tween, the more important that
>you choose a font whose shapes are simple (e.g., arial will tween more
>smoothly than Times because it lacks the serifs). Alpha and gradient fills
>take a big processor hit. I'm not sure of this, but I would guess
>complexity of the background would factor in -- even though it's not
>tweening, it still must be redrawn after each frame (can anyone else verify
>this?). Remember that what is needed is the illusion of movement --
>sometimes the tweens can be simpler than the start and finish images and
>the effect will be the same only smoother.
>
>Remember to set quality=high in your HTML codes (object and embed) if you
>don't want "the jagglies."
>
>
>Marc Hoffman
>_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
>marcatdartfrogmedia [dot] com (mailto:marcatdartfrogmedia [dot] com)
>Play a virtual marimba at: <www.dartfrogmedia.com/dartfrog> (featured
>in the book Flash 3 Web Animation by Ken Milburn).
>Flash3 samples: <http://www.jps.net/dartfrog/sampler>.
>
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