11399 2010-11-24 17:23:13 +0000 <canvas>: Locking individual color channels (e.g. drawing to alpha only) 2017-07-21 10:36:02 +0000 1 1 1 Unclassified WHATWG HTML unspecified All All RESOLVED WONTFIX https://www.w3.org/Bugs/Public/show_bug.cgi?id=19043 a11y, a11y_canvas P3 enhancement 2015 Q3 1 contributor ian annevk ian jay mike public-html-admin public-html-wg-issue-tracking robin slave.loren contributor oldest_to_newest 42752 0 contributor 2010-11-24 17:23:13 +0000 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 44032 1 ian 2011-01-10 22:08:52 +0000 EDITOR'S RESPONSE: This is an Editor's Response to your comment. If you are satisfied with this response, please change the state of this bug to CLOSED. If you have additional information and would like the editor to reconsider, please reopen this bug. If you would like to escalate the issue to the full HTML Working Group, please add the TrackerRequest keyword to this bug, and suggest title and text for the tracker issue; or you may create a tracker issue yourself, if you are able to do so. For more details, see this document: http://dev.w3.org/html5/decision-policy/decision-policy.html Status: Partially Accepted Change Description: none yet Rationale: Seems reasonable, but probably best to wait until the rest of the spec is more stable before adding more canvas features. 52753 2 mike 2011-08-04 05:04:01 +0000 mass-move component to LC1 64752 3 ian 2012-02-29 19:18:26 +0000 Punting again. Mostly working on path stuff on this iteration. 82041 4 public-rdfa-wg 2013-01-24 06:55:42 +0000 This bug was cloned to create HTML WG bug 19043. 84579 5 ian 2013-03-18 22:28:21 +0000 Are there browser vendors interested in implementing this? 85802 6 ian 2013-04-09 17:49:01 +0000 (Apparently yes. I'll deal with this via the WHATWG threads and then loop back on this bug.) 109445 7 ian 2014-07-28 23:54:32 +0000 *** Bug 13096 has been marked as a duplicate of this bug. *** 128743 8 annevk 2017-07-21 10:36:02 +0000 Please file a new issue at https://github.com/whatwg/html/issues/new if there's still interest.