Re: [css3-background] should specify color space for box-shadow blurring

On Fri, Sep 30, 2011 at 5:51 PM, Brian Manthos <brianman@microsoft.com> wrote:
> Further, if varying opacity alone impacts color space, then the CSS3 Values WD needs correction because this assertion would be incorrect:
>
> http://www.w3.org/TR/css3-images/#color-stop-syntax
> # Note that transitions where either the transparency or the color
> # are held constant (for example, transitioning between rgba(255,0,0,100%)
> # and rgba(0,0,255,100%) or rgba(255,0,0,100%) and rgba(255,0,0,0%)) have
> # identical results whether the color interpolation is done in premultiplied
> # or non-premultiplied color-space. Differences only arise when both the color
> # and transparency differ between the two endpoints.

Nope, that's still correct.  In that note I'm talking about the
difference between premultiplied and non-premultiplied spaces.  sRGB
vs linearRGB is a completely different story.

~TJ

Received on Saturday, 1 October 2011 01:00:45 UTC