Hi Marco,
"Marco Riedel" <[EMAIL PROTECTED]> wrote on 06/21/2007 11:36:27 AM:
> I have an document with about ten Layers (each rather complex about
> 180 - 270KB).
>
> I am trying to blend one of the Layers out and then blend another inby
setting
>
> attribute "fill-opacity" in an animation thread from an batik
JSVGCanvas.
> There are always max 2 Layers displayed.
Using fill-opacity is in this case a fairly bad way to do the blend.
You are probably better off using 'opacity'. This will give a better
effect and allow for the passability of caching the rendered fully opaque
layer and just bit-blitting it with a different opacity (although we
don't
do that now).
> Drawing in a small Window (200x100 ) the animation is very fast (
> 2100 millis for 5
>
> Frames core2 Duo 1,83 GHz) but with larger sizes (like 1024x768)
> the repaint takes
>
> very long(3998 millis for 5 Frames), so the problem is not the
DomRendering.
Hmm? It only takes 2x as long to render 5*7 = 35x the pixels.
The Screen rendering is not so long my guess is that a large chunk of
your 2100 millis is rebuilding the tree from the fill-opacity change.
My guess is that your performance will be closer to 2000 millis for
5 frames @1024x768 with the opacity change.
> My question is:
> Whats the bottleneck and is there a workaround?
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