[Webkit-unassigned] [Bug 73860] New: feImage doesn't invalidate when its target SVG element is animated

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=73860

           Summary: feImage doesn't invalidate when its target SVG element
                    is animated
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: SVG
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: timothy_horton at apple.com
                CC: zimmermann at kde.org, simon.fraser at apple.com


Created an attachment (id=117934)
 --> (https://bugs.webkit.org/attachment.cgi?id=117934&action=review)
repro

This is blocking SVG Wow!'s "Twirl" demo, and potentially others.

If you have an <feImage> that references a SVG element (in my case, a <rect>), and the target element is animated (I have an <animateTransform>), the feImage doesn't invalidate along with the animation.

See the attached test-case in WebKit vs. Opera. (in Opera, the rectangle rotates, as expected; in WebKit, it stays still).

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