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This is a first test of my walking macro. See "Invasion" thread in binary
images group for more info on the model.
Mike
Post a reply to this message
Attachments:
Download 'walker_test.mpg' (608 KB)
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Nice...
But a quadruped (including the AT-AT) only lifts one leg at a time, not
two...
Rarius
"Mike Sobers" <sob### [at] mindspring com> wrote in message
news:web.448e26a47413c039578dddf60@news.povray.org...
> This is a first test of my walking macro. See "Invasion" thread in binary
> images group for more info on the model.
>
> Mike
>
Post a reply to this message
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"Rarius" <rar### [at] rariuscouk> wrote:
> Nice...
>
> But a quadruped (including the AT-AT) only lifts one leg at a time, not
> two...
>
> Rarius
>
Actually, dogs walk and trot using the motion above. However, I happened to
be at the zoo yesterday and noticed that the elephants walk using the
"always three feet on the ground" rule (I'm sure that there is a term for
this). I think you're right about the AT-AT motion from the movies though.
It would be much more stable that way. Should be easy enough to fix ...
Thanks,
Mike
Post a reply to this message
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Dogs walk by the one leg at a time method, but you are right that they trot
using the two legs at a time method... Cant say I can imaging an AT-AT
trotting though!
Rarius
"Mike Sobers" <sob### [at] mindspringcom> wrote in message
news:web.448f9920dabd61efd5b8cc160@news.povray.org...
> "Rarius" <rar### [at] rariuscouk> wrote:
>> Nice...
>>
>> But a quadruped (including the AT-AT) only lifts one leg at a time, not
>> two...
>>
>> Rarius
>>
>
> Actually, dogs walk and trot using the motion above. However, I happened
> to
> be at the zoo yesterday and noticed that the elephants walk using the
> "always three feet on the ground" rule (I'm sure that there is a term for
> this). I think you're right about the AT-AT motion from the movies
> though.
> It would be much more stable that way. Should be easy enough to fix ...
>
> Thanks,
> Mike
>
>
>
Post a reply to this message
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"Mike Sobers" <sob### [at] mindspringcom> wrote:
> Actually, dogs walk and trot using the motion above. However, I happened to
> be at the zoo yesterday and noticed that the elephants walk using the
> "always three feet on the ground" rule (I'm sure that there is a term for
> this). I think you're right about the AT-AT motion from the movies though.
> It would be much more stable that way. Should be easy enough to fix ...
I haven't looked at your anim yet (I'm at home, on dialup), but there's
quite a lot of work out there on animal locomotion & gait patterns. For
example, from
http://www.springerlink.com/(rokz33i4rb0wxxagqzxsjq3h)/app/home/contribution.asp?referrer=parent&backto=issue,1,16;jour
nal,141,465;linkingpublicationresults,1:100465,1
Hard-wired central pattern generators for quadrupedal locomotion
J. J. Collins1 and S. A. Richmond1
Abstract Animal locomotion is generated and controlled, in part, by a
central pattern generator (CPG), which is an intraspinal network of neurons
capable of producing rhythmic output. In the present work, it is
demonstrated that a hard-wired CPG model, made up of four coupled nonlinear
oscillators, can produce multiple phase-locked oscillation patterns that
Transitions between the different gaits are generated by varying the
network's driving signal and/or by altering internal oscillator parameters.
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From: Data Banks
Subject: Re: WIP - All Terrain Armored Transport walker
Date: 21 Jun 2006 05:47:38
Message: <449915ba@news.povray.org>
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"Rarius" <rar### [at] rariuscouk> wrote in message
news:4491f195$1@news.povray.org...
> Dogs walk by the one leg at a time method, but you are right that they
> trot using the two legs at a time method... Cant say I can imaging an
> AT-AT trotting though!
>
> Rarius
>
A trotting At-AT - now there's headaches waiting to happen for the troops ;)
Something so big would want as much stability as possible so the adjustable
"tripod" style of walking makes the safest course. If you note that trotting
includes a lot of vertical motion while one leg at a time allows easier
adjustment of the main body, so less bouncing in the ride. And dogs switch
to both front/both rear at full speed, too (geez, an At-At doing that would
scare the crap out of anyone!). Hrm, seem to recall a TV segment on the
various gaits horses use a loooong time ago...
> "Mike Sobers" <sob### [at] mindspringcom> wrote in message
> news:web.448f9920dabd61efd5b8cc160@news.povray.org...
>> "Rarius" <rar### [at] rariuscouk> wrote:
>>> Nice...
>>>
>>> But a quadruped (including the AT-AT) only lifts one leg at a time, not
>>> two...
>>>
>>> Rarius
>>>
>>
>> Actually, dogs walk and trot using the motion above. However, I happened
>> to
>> be at the zoo yesterday and noticed that the elephants walk using the
>> "always three feet on the ground" rule (I'm sure that there is a term for
>> this). I think you're right about the AT-AT motion from the movies
>> though.
>> It would be much more stable that way. Should be easy enough to fix ...
>>
>> Thanks,
>> Mike
>>
>>
>>
>
>
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