W3C home > Mailing lists > Public > www-style@w3.org > April 2010

Re: transitions vs. animations

From: Chris Marrin <cmarrin@apple.com>
Date: Wed, 07 Apr 2010 16:01:24 -0700
Message-id: <ABFA9862-EE59-4804-A469-E7D7CFA698DA@apple.com>
To: "www-style@w3.org list" <www-style@w3.org>

On Apr 7, 2010, at 11:58 AM, Brad Kemper wrote:

> 
> 
>> ...But that's not transition keyframes. That's simply trigger animation keyframes using a property change as the trigger.
> 
> I never claimed it was anything different. When Maciej mentioned "supporting keyframes for transitions in some form", I assumed it was in reference to earlier conversation about inserting a keyframe-based animation into a transition so that it would play while the transition played, thus allowing a vertical bounce while transitioned 'left'. Perhaps I misunderstood.
> 
>> Transition keyframes would express the keyframes in terms of the property being animated.
> 
> II was not attempting to define 'transition keyframes'.
> 
>> For instance, if I have a 'left' property of 0 and I set it to 200px, I might want it to go 75% of the way to the destination, then go back to 25% and then all the way. The keyframes would have to be expressed in terms of these percentages. As I said in a previous post, I don't think we should consider this for this release of the Transitions spec.
> 
> Nor do I. Was this part of what was discussed in the thread so far? I might have missed that.
> 


I just think we should keep terminology straight. The concept of adding keyframe to transitions has been discussed on this list and as we both agree that's different from triggering an animation from a property value change, which is what we've been discussing on this thread.

-----
~Chris
cmarrin@apple.com
Received on Wednesday, 7 April 2010 23:01:57 GMT

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