Re: [css-images][css-compositing] Blurring an elementís backdrop

On Wed, Sep 18, 2013 at 8:15 PM, Brad Kemper <> wrote:

> On Sep 18, 2013, at 4:33 PM, Rik Cabanier wrote:
> Blurring of the backdrop is not quite the same as a CSS image.
> You typically only want to blur where you're actually painting. For
> instance, if you draw large text or an SVG graphic, you only want to blur
> where the pixels of the text or graphic are drawn.
> I guess you could pull in the backdrop as a rectangular region of a
> certain size, but seems too primitive for CSS.
> The backdrop is whatever is behind the element, right? That can change,
> due to scrolling, resizing, dragging, animating, etc., and you'd want the
> blurring to continue to blur whatever is behind it.

Yes, since this is all declarative, the effect should look correct if the
content or its backdrop change. (Just like it should with blending)

Received on Thursday, 19 September 2013 03:28:35 UTC