W3C home > Mailing lists > Public > www-svg@w3.org > March 2014

Re: [css-images] Generated noise image

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Fri, 7 Mar 2014 10:38:28 -0800
Message-ID: <CAAWBYDDTRv-MXOWLCBgLL94rjDEAOm6uhb75Wgeu0k1MUtWiKQ@mail.gmail.com>
To: Simon Sapin <simon.sapin@exyr.org>
Cc: Dirk Schulze <dschulze@adobe.com>, "www-style@w3.org" <www-style@w3.org>, www-svg <www-svg@w3.org>
On Fri, Mar 7, 2014 at 8:10 AM, Simon Sapin <simon.sapin@exyr.org> wrote:
> On 07/03/2014 14:39, Dirk Schulze wrote:
>> A while back ago we discussed a noise filter function for Filter
>> Effects on the SVG WG. SVG Filters have a Perlin noise filter:
>> feTurbulence.
>>
>> feTurbulence was identified for not being hardware acceleration
>> friendly and the SVG WG was requested to come up with a different
>> noise algorithm.
>>
>> Some members requested to create a new CSS image function instead of
>> creating a new filter to generate noise. I would like to know if
>> there is still interest in a noise image function.
>
> Would this function generate an image of just noise with an alpha channel to
> be composited with other things, or would it take another <image> value as
> input and apply noise to it?

We can make one that applies noise to images, allow colors in place of
images, and allow omitting the argument to mean "transparent", so you
get naked noise.

~TJ
Received on Friday, 7 March 2014 18:39:17 UTC

This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 22:54:51 UTC