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Re: CSS3 transition strangeness when using background-color:transparent;

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Fri, 29 Jan 2010 09:12:10 -0600
Message-ID: <dd0fbad1001290712m20e9ea56ge2595b1e111bdddb@mail.gmail.com>
To: Boris Zbarsky <bzbarsky@mit.edu>
Cc: www-style <www-style@w3.org>
On Fri, Jan 29, 2010 at 9:02 AM, Tab Atkins Jr. <jackalmage@gmail.com> wrote:
> On Fri, Jan 29, 2010 at 9:00 AM, Boris Zbarsky <bzbarsky@mit.edu> wrote:
>> On 1/29/10 9:47 AM, Tab Atkins Jr. wrote:
>>> Maybe.  I'm trying to understand your previous email, but I'm pretty
>>> sure you typo'd on a few places
>> I just double-checked, and the one typo I see is that
>>  rgbap(255(t-1), 255(1-5), 255(1-t), 1-t)
>> should be:
>>  rgbap(255(1-t), 255(1-t), 255(1-t), 1-t)
> That's the one.  I was counted the two things in parens as separate.
> I was pretty sure two of those were wrong, but I couldn't figure out
> which.  ^_^

All right, I still don't have a great intuition yet on how precisely
color blending operates in the two spaces, but from what I've gathered
transitioning in premultiplied space does indeed match expectations,
at least approximately.

Received on Friday, 29 January 2010 15:13:03 UTC

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