- From: Tab Atkins Jr. <jackalmage@gmail.com>
- Date: Sun, 18 Jul 2010 15:45:36 -0700
- To: Brian Manthos <brianman@microsoft.com>
- Cc: Brad Kemper <brad.kemper@gmail.com>, Aryeh Gregor <Simetrical+w3c@gmail.com>, "L. David Baron" <dbaron@dbaron.org>, Simon Fraser <smfr@me.com>, Brendan Kenny <bckenny@gmail.com>, www-style list <www-style@w3.org>
On Sun, Jul 18, 2010 at 11:54 AM, Brian Manthos <brianman@microsoft.com> wrote: >> Brad Kemper: >> > Further, is it required the algorithm be consistent in the positive and negative directions. >> I don't think so. >> > If I put two boxes next to each other horizontally that use the same blur, should they produce a consistent effect on the underlying background along > the linear part of the shared left/right border (because combine they provide a consistent opa >> I'm pretty sure I don't understand. > > Let me rephrase since my example overstepped slightly, as Alex noted. > > Example A: > <div style="margin:50px; width:50px; height:100px; box-shadow: 10px 20px 5px 10px blue"></div> > > Example B: > <div style="margin:50px; width:50px; height:100px; box-shadow: -10px 20px 5px 10px blue"></div> > > 1. Render A > 2. Take a screenshot of A > 3. Render B > 4. Take a screenshot of B > 5. Flip the image of 4 horizontally > > Must the box-shadow rendering from 2 match the box-shadow rendering from 5? Modulo pixel rounding errors, yes. ~TJ
Received on Sunday, 18 July 2010 22:46:28 UTC