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[Bug 11397] Additional compositing operations such as 'max-alpha' and 'min-alpha' would make it much easier to make soft brush and eraser tools in painting applications.

From: <bugzilla@jessica.w3.org>
Date: Thu, 25 Nov 2010 16:19:55 +0000
To: public-html-bugzilla@w3.org
Message-Id: <E1PLeY7-0007BV-Fo@jessica.w3.org>

Richard Poole <richard@sycora.com> changed:

           What    |Removed                     |Added
                 CC|                            |richard@sycora.com

--- Comment #2 from Richard Poole <richard@sycora.com> 2010-11-25 16:19:54 UTC ---
I couldn't find any graphics library support for 'max-alpha' or 'min-alpha'
unfortunately, but Cairo and Qt do support a broader set of compositing modes:

- http://cairographics.org/manual/cairo-cairo-t.html#cairo-operator-t
- http://doc.qt.nokia.com/4.7/qpainter.html#CompositionMode-enum

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