[Bug 11399] New: The ability to lock individual channels (i.e. prevent them from being updated by drawing functions) would allow for some interesting composition tricks, such as drawing directly to the alpha channel.

http://www.w3.org/Bugs/Public/show_bug.cgi?id=11399

           Summary: The ability to lock individual channels (i.e. prevent
                    them from being updated by drawing functions) would
                    allow for some interesting composition tricks, such as
                    drawing directly to the alpha channel.
           Product: HTML WG
           Version: unspecified
          Platform: Other
               URL: http://www.whatwg.org/specs/web-apps/current-work/#com
                    positing
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P3
         Component: HTML Canvas 2D Context (editor: Ian Hickson)
        AssignedTo: ian@hixie.ch
        ReportedBy: contributor@whatwg.org
         QAContact: public-html-bugzilla@w3.org
                CC: mike@w3.org, public-html-wg-issue-tracking@w3.org,
                    public-html@w3.org


Specification: http://www.whatwg.org/specs/web-apps/current-work/
Section:
http://www.whatwg.org/specs/web-apps/current-work/complete.html#compositing

Comment:
The ability to lock individual channels (i.e. prevent them from being updated
by drawing functions) would allow for some interesting composition tricks,
such as drawing directly to the alpha channel.

Posted from: 87.114.199.5

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Received on Wednesday, 24 November 2010 17:23:17 UTC