[Webkit-unassigned] [Bug 85434] New: Winding technique for inset shadow causing flicker.
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Wed May 2 16:43:59 PDT 2012
https://bugs.webkit.org/show_bug.cgi?id=85434
Summary: Winding technique for inset shadow causing flicker.
Product: WebKit
Version: 528+ (Nightly build)
Platform: Macintosh Intel
OS/Version: Mac OS X 10.7
Status: UNCONFIRMED
Severity: Major
Priority: P2
Component: Canvas
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: greg at fezo.com
Created an attachment (id=139913)
--> (https://bugs.webkit.org/attachment.cgi?id=139913&action=review)
Example of flicker caused by winding.
Please review attached file for example. I am using a technique of clockwise followed by anti clockwise to punch a hole in path and then clipping the non overlapping portions of the anti clockwise path to create a inset shadow effect. I suspect its either taking to much time to perform the draw operations or the shader buffer is overflowing.
Expected no flicker. Got flicker.
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