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Re: [filters] Reusing filter functions as <image>s in CSS

From: Rik Cabanier <cabanier@gmail.com>
Date: Wed, 18 May 2011 11:59:39 -0700
Message-ID: <BANLkTikajNt7gdT-yv46na-Jowb8Sxx2Qg@mail.gmail.com>
To: "Tab Atkins Jr." <jackalmage@gmail.com>
Cc: public-fx@w3.org
Hi Tab,

wouldn't it be easier if there was a 'background-filter' keyword?

Rik

On Wed, May 11, 2011 at 4:00 PM, Tab Atkins Jr. <jackalmage@gmail.com>wrote:

> Right now, the Filters spec defines the CSS syntax with a very
> simplistic mapping into SVG - every function is normatively defined by
> a simple <filter> that takes the entire source element as input.  This
> means that the functions themselves don't specify their input, as they
> all take a single source image.
>
> This is mostly fine when you're doing the sorts of things that the
> 'filter' property is meant to do.  It's a problem, though, when you
> want to reuse these cool effects (like sepia(), blur(), invert(),
> etc.) on images in CSS for use in backgrounds or other places.  I'd
> like to see these filter functions also defined in a way that allows
> one to apply them to <image> values.
>
> I'm not sure what the best way to go about this is.  A
> minimal-disruption route would be to define new <image> values with
> functions of the same name that take an <image> argument in addition
> to their existing arguments.  I could do this in Image Values 4,
> perhaps.
>
> ~TJ
>
>
Received on Wednesday, 18 May 2011 19:00:07 GMT

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