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Re: [css3-transitions] Frame Rate

From: Zachary “Gamer_Z.” Yaro <zmyaro@gmail.com>
Date: Fri, 28 Sep 2012 01:04:39 -0400
Message-ID: <CANFzyvJQUKdkD0QGRwK5bP9PcuGnTpvg9YevrxTrUiig2asQ8w@mail.gmail.com>
To: Jon Rimmer <jon.rimmer@gmail.com>
Cc: François REMY <fremycompany_pub@yahoo.fr>, WWW Style <www-style@w3.org>, Sylvain Galineau <sylvaing@microsoft.com>, David Singer <singer@apple.com>, Martijn Korteweg <martijn@mediaartslab.com>
If I am reading this correctly—and I may not be—it sounds like what you
want is not necessarily a way to limit the frame rate, but a way to turn
off interpolation.

—Zachary “Gamer_Z.” Yaro
On Sep 28, 2012 12:27 AM, "Jon Rimmer" <jon.rimmer@gmail.com> wrote:

> On 28 September 2012 10:23, Sylvain Galineau <sylvaing@microsoft.com>
> wrote:
> >
> > The browser will play it for the requested duration. Of course, this may
> > mean extra frames in between the ones specified in the rule. As currently
> > designed, this is a feature of CSS Animations, not a bug.
> >
> > It's possible there is a use-case for animations where the developers
> > specified a frame rate and defines each frame i.e. there is no
> interpolation.
> > I am not sure this could be just an additional property or an extension
> on
> > the current @keyframes, however.
> >
> > It would be helpful to see such animations as exported.
> >
> There may not necessarily be data available for every frame. Animators
> don't tend to draw them all, just a subset, and animation tools do the
> same sort of interpolation as browsers [1], except they also provide
> the ability to limit the final framerate. Of course, the tools could
> be modified to generate the interpolated keyframes in CSS as well, but
> in terms of the original request in this thread, it seems like a
> simple framerate cap without disabling interpolation or needing to
> specify every frame is what the animators want.
> It would be useful to hear from animators, either from Media Arts Lab
> or elsewhere, on concrete reasons for wanting framerate limiting. Is
> it just a case of recreating an aesthetic feel, are there difficulties
> or artifacts that only become apparent when animations are displayed
> at 60fps or above? Do any of the Adobe representatives have anything
> to add? You guys have a lot of customers in the animation field.
> I actually agree with David that artifiically recreating the
> deficiences of earlier era technology simply to achieve familiarlity
> can be somewhat absurd and detrimental, but I wanted to make sure what
> was being requested here was properly understood at least.
> That said, it's worth noting that every day, thousands of teenagers
> are posting Instagram photos to Facebook that recreate the flaws of
> cameras built and obsoleted well before they were born. Even if you
> dislike the trend, it's clear that there's something more going on
> that a simple preference for the familiar. In spite of our instincts
> as technologists, the relationship between fidelity and aesthetics is
> not always as simple as higher = better.
> [1] http://en.wikipedia.org/wiki/Inbetweening
> Jon Rimmer
Received on Friday, 28 September 2012 05:05:08 UTC

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