- From: Simon Fraser <smfr@me.com>
- Date: Mon, 14 Feb 2011 08:09:35 -0800
- To: Alex Danilo <alex@abbra.com>
- Cc: www-style@w3.org
On Feb 14, 2011, at 1:56 am, Alex Danilo wrote: > Hello Style-afficonados, > > I've been reviewing the document at: > > http://www.w3.org/TR/css3-animations/ > > which is of course the CSS3 animations working draft. > > Section 2.1 describes 'Timing functions for keyframes'. In it > are 'animation-timing-function' properties called: > > * 'ease-out' > * 'ease-in' > * ease > > All these property values have no definition for what they > are supposed to do. There is a vague English description about what > a UA should _try_ to do but no actual definition. > > Should the 'ease' set be a cubic spline function, a series > of connected linear interpolations, a quadratic? > > For interoperability, these need to be specified as a time > variant function that can be replicated across browsers. Reading WebKit > source will not suffice as a substitute. > > UA authors would appreciated clarification of the expected > behaviour. These are exactly the same as the values used for transition-timing-function: <http://www.w3.org/TR/css3-transitions/#transition-timing-function_tag>. The draft should be updated to reflect this, I agree. Simon
Received on Monday, 14 February 2011 16:10:15 UTC