[webkit-dev] Starting implementation on W3C Filter Effects

Rik Cabanier cabanier at gmail.com
Thu Nov 3 17:02:05 PDT 2011


could you implement the filters on top of shaders if the target has WEBGL
Doing animated filters in software will be slow unless you spend a
significant amount of time on coding SSE or NEON instructions.


On Mon, Oct 24, 2011 at 9:02 PM, Dean Jackson <dino at apple.com> wrote:

> On 22/09/2011, at 11:30 AM, Dean Jackson wrote:
> > Dirk (known in these parts as krit) reminded me that I had not emailed
> webkit-dev about the plans to start an implementation of W3C's new Filter
> Effects specification.
> >
> > https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/publish/Filters.html
> >
> > The quick summary is that this exposes the 'filter' property from SVG to
> everything in CSS, and adds some shorthands for common effects so people
> don't have to write XML in order to do something like a blur or sepia
> effect. The spec has received a fair amount of input from the CSS and SVG
> working groups, and particularly from Apple, Google, Mozilla, Opera and
> Adobe.
> A followup: we're going to start work on the CSS Shaders proposal [1]
> soon. Adobe have published their implementation which was specific to
> Chromium, and we'll be working with them to split it into small patches
> that can land in the coming weeks. A good introduction to the technology is
> [2].
> This will be done behind the ENABLE_CSS_FILTERS macro, but also with the
> guards for ENABLE_WEBGL since the implementation (and security)
> requirements are so similar.
> Dean
> [1] https://dvcs.w3.org/hg/FXTF/raw-file/tip/custom/index.html
> [2] www.adobe.com/devnet/html5/articles/css-shaders.html
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