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List:       kde-devel
Subject:    Re: "animations" in oxygen style
From:       John Tapsell <johnflux () gmail ! com>
Date:       2009-10-24 1:33:21
Message-ID: 43d8ce650910231833y4a74595v791b2df2632b256e () mail ! gmail ! com
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2009/10/23 Aleix Pol <aleixpol@kde.org>:
> On Fri, Oct 23, 2009 at 4:00 AM, John Tapsell <johnflux@gmail.com> wrote:
>>
>> 2009/10/23 Aaron J. Seigo <aseigo@kde.org>:
>> > On October 22, 2009, John Tapsell wrote:
>> >> I personally don't like the animations because it makes everything
>> >> feel very 'heavy'.  E.g. if I hover over a scrollbar/button and there
>> >> is a delay before it's glowing, I'm going to feel that the machine is
>> >> being slow and unresponsive.
>> >
>> > this has everything to do with the style, framerate and speed of the
>> > animation. animations done poorly make things feel heavy. animations
>> > done
>> > right make things feel responsive.
>>
>> Usually I'd agree - for most animations 300ms is considered
>> nearly-instant.  However this does not apply for clicking/hovering
>> animations.  When typing on a keyboard, for example, a delay of a mere
>> 100ms between touching and response is already considered to be felt
>> as a very heavy keyboard.  60ms is tolerable, and most people prefer
>> 30ms responses.
>>
>> I see no reason why the same doesn't apply here.  You need instant
>> response and highlighting.  You can then animate something
>> additionally on top if you wish, but the initial highlighting must be
>> near instant (e.g. around 50ms).
>>
>> John
>>
>> >> Visit http://mail.kde.org/mailman/listinfo/kde-devel#unsub to
>> >> unsubscribe <<
>
> By responsiveness you mean that "something happens", it is not necessary
> that everything happens. The eye just needs some feedback that what was
> predicted happened. It's not the same as in keyboard responsiveness, because
> you say that it feels slow if you press a key and _nothing_ happens for
> 50ms, but nothing is not the same as some-animation-started.
>
> I don't think 200ms is too much.

I get your point, but disagree.  I think the only way to settle it
really is to sit users down and ask them which they prefer.  I really
expect that users will feel 200ms is too slow.

:)

John
 
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