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The animation looks very "computer generated". I think maybe a more complex
simulation model is required to make it look better...
Post a reply to this message
Attachments:
Download 'newton.mpg' (693 KB)
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scott nous apporta ses lumieres ainsi en ce 26/06/2004 10:39... :
>The animation looks very "computer generated". I think maybe a more complex
>simulation model is required to make it look better...
>
>
>
>
Nice and smooth. Clicking on the moon... the low gravity explain the
slowness of the movement.
Alain
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Alain wrote:
> scott nous apporta ses lumieres ainsi en ce 26/06/2004 10:39... :
>
> > The animation looks very "computer generated". I think maybe a
> > more complex simulation model is required to make it look better...
> >
> >
> >
> >
> Nice and smooth. Clicking on the moon... the low gravity explain the
> slowness of the movement.
It's very tall you know :-)
But you're right, for an "average" sized model (maybe 15cm tall) it should
be much faster, let me look up the time period for a pendulum formula...
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In article <40dd92a6$1@news.povray.org>, "scott" <spa### [at] spam com> wrote:
> But you're right, for an "average" sized model (maybe 15cm tall) it should
> be much faster, let me look up the time period for a pendulum formula...
Yep, and remember that the angle between your pendulum and the vertical
axe is a sinus function of time. I couldn't see if it were used here or
not. (definitly too slow ;) )
--
"Je ne deteste que les bourreaux" -- Albert Camus
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> In article <40dd92a6$1@news.povray.org>, "scott" <spa### [at] spamcom>
> wrote:
>
> > But you're right, for an "average" sized model (maybe 15cm tall) it
> > should be much faster, let me look up the time period for a
> > pendulum formula...
>
>
> Yep, and remember that the angle between your pendulum and the
> vertical axe is a sinus function of time. I couldn't see if it were
> used here or not. (definitly too slow ;) )
The angle=sine(time) at the moment, but actually that is not physically
correct.
The equation for a pendulum is ang.accel = g * sin(angle), whereas most
people just use ang.accel = g * angle :-)
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scott wrote:
> > In article <40dd92a6$1@news.povray.org>, "scott" <spa### [at] spamcom>
> > wrote:
> >
> > > But you're right, for an "average" sized model (maybe 15cm tall)
> > > it should be much faster, let me look up the time period for a
> > > pendulum formula...
> >
> >
> > Yep, and remember that the angle between your pendulum and the
> > vertical axe is a sinus function of time. I couldn't see if it were
> > used here or not. (definitly too slow ;) )
>
> The angle=sine(time) at the moment, but actually that is not
> physically correct.
>
> The equation for a pendulum is ang.accel = g * sin(angle), whereas
> most people just use ang.accel = g * angle :-)
OK here is newer version with correct time period for model height (120mm).
Post a reply to this message
Attachments:
Download 'newton.mpg' (167 KB)
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scott wrote:
> [...]
> The equation for a pendulum is ang.accel = g * sin(angle), whereas most
> people just use ang.accel = g * angle :-)
since sin(angle) for a little angle is approximately angle. (And later they
use it for big angles too.)
Those physicists!
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Urs Holzer wrote:
> scott wrote:
>
> > [...]
> > The equation for a pendulum is ang.accel = g * sin(angle), whereas
> > most people just use ang.accel = g * angle :-)
>
> since sin(angle) for a little angle is approximately angle. (And
> later they use it for big angles too.)
> Those physicists!
Hehe, I'm an Engineer, I use it for *really* big angles :-)
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Very nice
Personally though I would like to see those chrome sphere over a checkered
plane ;)
Dave.
"scott" <spa### [at] spamcom> wrote in message news:40dd99c7$1@news.povray.org...
> > In article <40dd92a6$1@news.povray.org>, "scott" <spa### [at] spamcom>
> > wrote:
> >
> > > But you're right, for an "average" sized model (maybe 15cm tall) it
> > > should be much faster, let me look up the time period for a
> > > pendulum formula...
> >
> >
> > Yep, and remember that the angle between your pendulum and the
> > vertical axe is a sinus function of time. I couldn't see if it were
> > used here or not. (definitly too slow ;) )
>
> The angle=sine(time) at the moment, but actually that is not physically
> correct.
>
> The equation for a pendulum is ang.accel = g * sin(angle), whereas most
> people just use ang.accel = g * angle :-)
>
>
>
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