- From: Rik Cabanier <cabanier@gmail.com>
- Date: Thu, 14 Feb 2013 14:18:33 +1100
- To: robert@ocallahan.org
- Cc: whatwg@whatwg.org, Ian Hickson <ian@hixie.ch>, Stephen White <senorblanco@chromium.org>
On Thu, Feb 14, 2013 at 2:12 PM, Robert O'Callahan <robert@ocallahan.org>wrote: > On Thu, Feb 14, 2013 at 3:55 PM, Rik Cabanier <cabanier@gmail.com> wrote: > >> What would happen if you set 'opaque' to true and you draw with alpha and >> 'copy' compositing? It seems that that has the same issue (unless you're >> OK >> with breaking drawing). >> > > The alpha values of all moz-opaque canvas pixels are simply not affected > by compositing. > Exactly! So, this will break drawing as the pixels with no alpha will be black with no way to undo that.
Received on Thursday, 14 February 2013 03:19:01 UTC