[Webkit-unassigned] [Bug 106549] [CSS Filters] Filter blur effects don't transition outside of box

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=106549





--- Comment #8 from Alexandru Chiculita <achicu at adobe.com>  2013-01-16 09:18:27 PST ---
(In reply to comment #7)
> Sorry, I didn't get the problem initially. The problem is that the 'opacity' property clips content from an applied filter.
> 
>     filter: drop-shadow: 10px 10px 10px green;
>     opacity: 0.5;
> 
> clips the shadow away. Similar to all other filter functions extending the boundaries.

Looks like an issue in RenderLayer::beginTransparencyLayers that clips the transparency layer to the minimum amount needed. 

The fix would be to make "static LayoutRect transparencyClipBox"  expand the clip-rect by the filter bounds, like we do for RenderLayer::setFilterBackendNeedsRepaintingInRect.

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