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Re: [css3-animations] interaction between animation-timing-function on keyframes and reverse animations?

From: Chris Marrin <cmarrin@apple.com>
Date: Thu, 31 Mar 2011 13:45:14 -0700
Cc: "www-style@w3.org list" <www-style@w3.org>
Message-id: <CC8570F1-2D00-44D9-A563-6B27FD8077A7@apple.com>
To: "L. David Baron" <dbaron@dbaron.org>

On Mar 31, 2011, at 1:22 PM, Chris Marrin wrote:

> On Mar 31, 2011, at 1:08 PM, L. David Baron wrote:
>> http://dev.w3.org/csswg/css3-animations/#timing-functions-for-keyframes-
>> describes the use of animation timing functions on keyframes, but
>> isn't clear how this applies to animations when running in reverse
>> due to 'animation-direction: alternate'.
>> Is it the intent of the spec that the animation between keyframe N
>> and keyframe N+1, no matter what direction, be controlled by the
>> animation-timing-function on keyframe N?  That seems like the most
>> logical interpretation of the existing prose (though not the most
>> literal).
> That is what WebKit does and I agree that it makes the most sense. The spec should be clear on this. Can you open a spec bug?

Sorry, I mistakenly thought we were putting spec bugs into the w3c bug system. Since not, we should just propose some words here. I've tried to write a sentence or two to clarify the case, but what I've come up with just makes it more confusing. Any suggestions on how to make it more clear?

Received on Thursday, 31 March 2011 20:45:48 UTC

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