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Re: Updated filters specification

From: Robert O'Callahan <robert@ocallahan.org>
Date: Thu, 28 Apr 2011 17:24:04 +1200
Message-ID: <BANLkTik8axNELmTFpw2cwDZOEnnyv5S2NQ@mail.gmail.com>
To: Rik Cabanier <cabanier@gmail.com>
Cc: Erik Dahlstrom <ed@opera.com>, Dean Jackson <dino@apple.com>, Dirk Schulze <vbs85@gmx.de>, public-fx@w3.org, Anthony Grasso <anthony.grasso@cisra.canon.com.au>
On Thu, Apr 28, 2011 at 5:22 AM, Rik Cabanier <cabanier@gmail.com> wrote:

> It seems that when you access the background, you start to do blending.
> Can't we move the functionality of BackgroundImage and BackgroundAlpha to
> the CSS compositing spec?
>
> In SVG today, it seem like overlapping functionality that should be fixed.
>

No, exposing BackgroundImage and BackgroundAlpha to filters enables all
kinds of effects that can't be reduced to compositing operators. (E.g.,
blurring or displacement mapping of the background.)

Rob
-- 
"Now the Bereans were of more noble character than the Thessalonians, for
they received the message with great eagerness and examined the Scriptures
every day to see if what Paul said was true." [Acts 17:11]
Received on Thursday, 28 April 2011 05:24:31 GMT

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