[Webkit-unassigned] [Bug 42852] New: box shadows on WebGL canvas elements repainted every frame

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=42852

           Summary: box shadows on WebGL canvas elements repainted every
                    frame
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebGL
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jamesr at chromium.org
                CC: simon.fraser at apple.com, kbr at google.com, zmo at google.com


Try adding a large box shadow to the WebGL spinning box example.  The framerate drops because the shadow is re-drawn every frame.  Only the WebGL's contents should be invalidated, not anything on the canvas itself.

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