[Webkit-unassigned] [Bug 53089] SVG <animateTransform> should use display acceleration in similar way like CSS3 transformations do

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=53089





--- Comment #18 from Dirk Schulze <krit at webkit.org>  2011-09-07 09:53:29 PST ---
(In reply to comment #17)
> Pixelation is a side-effect of the current hardware animation path when scaling, but that's a bug. This bug shouldn't be closed just because pixelation can happen under some circumstances.

I have nothing in mind against reopening this bug, but this bug is about pixelated animation like for CSS. I don't believe that we want this.

And CSS animation and CSS transition is not comparable to SVG. SVG animation implements the sandwich model. Means we have to check on every animation step which animation is active and accounts to the current shape (even because of event based animation we can't add an heuristic that can calculate the last step of an animation). That means we have to relayout and repaint on every animation step. I don't think that the layer based animation can help on SVG. Instead we may have more success on hardware accelerated path drawing. But this is the task of the graphic library and not of WebKit.

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