POV-Ray : Newsgroups : povray.text.tutorials : Animation Tutorials on Walking Server Time
24 Nov 2024 02:02:33 EST (-0500)
  Animation Tutorials on Walking (Message 1 to 7 of 7)  
From: Tim Soderstrom
Subject: Animation Tutorials on Walking
Date: 25 Apr 1999 21:36:58
Message: <37230D1B.99DBC1FD@sitc.net>
I've been hunting around various places for them, but I can't seem
to find em'. So, does anyone know where I can find some animation
tutorials that do with complex animations such as walking. I have an
idea of how to make a human walk, but I do not really possess that skill
in Pov-Ray to do it  (I'm still trying to work out CSG differences and
such - damn they can get complicated! :). My problem really is that
I don't know how to convey to povray how to move the objects. I thought
about it using a hierarchy. For example, cutting the leg into 3
parts (Top, Below Knee, Foot), and when I move it, I'd move the whole
thing, followed by the Knee, then the Foot. Not a very realistic
concept, but it is a start I 'spose.

    It isn't too terribly importaint just yet, as I'm working on a still
project right now, but I'd like to begin messing with it.

    Oh yes, I'm also looking for an MPEG Video Player for Linux and a
MPG cruncher/maker (the thing I run to cram all my images into a nice,
neat MPEG :)

    Thanks for the help,

        -Tim Soderstrom


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From: Ken
Subject: Re: Animation Tutorials on Walking
Date: 25 Apr 1999 23:33:47
Message: <3723CFE9.2FE372D0@pacbell.net>
Tim Soderstrom wrote:
> 
>     I've been hunting around various places for them, but I can't seem
> to find em'. So, does anyone know where I can find some animation
> tutorials that do with complex animations such as walking. I have an
> idea of how to make a human walk, but I do not really possess that skill
> in Pov-Ray to do it  (I'm still trying to work out CSG differences and
> such - damn they can get complicated! :). My problem really is that
> I don't know how to convey to povray how to move the objects. I thought
> about it using a hierarchy. For example, cutting the leg into 3
> parts (Top, Below Knee, Foot), and when I move it, I'd move the whole
> thing, followed by the Knee, then the Foot. Not a very realistic
> concept, but it is a start I 'spose.
> 
>     It isn't too terribly importaint just yet, as I'm working on a still
> project right now, but I'd like to begin messing with it.

  There are a couple of walking related inc files you could reference
for direct pov related info. 

Walking .inc and a good animtion:
http://www.jbarchuk.com/twillis/

Also look here for the motion dynamics libraries:
http://www.win.or.jp/~kom/povray_e.html#theresa

There is a very basic illustrated description of a system called
inverse kinematics  which can be found at the following site:
http://freespace.virgin.net/hugo.elias/

  Daniel Skarda has many links to studies in human motions and
automated motion studies for use in robotics at:
http://atrey.karlin.mff.cuni.cz/~0rfelyus/bookmark.html

  And lastly you should know that the Pov modeller, Moray, now has
an inverse kinematics motion control system as one of it's features
available. It really simplifies the process.


>     Oh yes, I'm also looking for an MPEG Video Player for Linux and a
> MPG cruncher/maker (the thing I run to cram all my images into a nice,
> neat MPEG :)
> 
>     Thanks for the help,
>         -Tim Soderstrom

  You might also keep an eye out for items related to your last request
while visiting Daniel Skarda's page. He has a lot of Linux links I don't
bother with becuase I'm a Windows user.

-- 
Ken Tyler

mailto://tylereng@pacbell.net


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From: Ken
Subject: Re: Animation Tutorials on Walking
Date: 26 Apr 1999 08:54:35
Message: <37245364.3F431BB0@pacbell.net>
Tim Soderstrom wrote:
> 
>     I've been hunting around various places for them, but I can't seem
> to find em'. So, does anyone know where I can find some animation
> tutorials that do with complex animations such as walking. I have an
> idea of how to make a human walk, but I do not really possess that skill
> in Pov-Ray to do it

A couple of links  forgot I had might also interest you as related
to the proper movements of limbs:

http://www.frams.poznan.pl/a/al_main.html

Center for human animation and simulation:
http://www.cis.upenn.edu/~hms/

Rational b splines as applied to animation:
http://www.cs.ubc.ca/nest/imager/contributions/forsey/dragon/top.html

Human arm modelling and motion control:
http://www.cs.curtin.edu.au/~chinkw/html/ik/

Human body modelling and motion:
http://ligwww.epfl.ch/~shen/bb.html

Impulse and imagines site:
http://www.cs.berkeley.edu/~mirtich/impulse.html

A good source for all things in CG animation:
http://www.mediom.qc.ca/creator-studio/

Enjoy,

-- 
Ken Tyler

mailto://tylereng@pacbell.net


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From: Spider
Subject: Re: Animation Tutorials on Walking
Date: 26 Apr 1999 20:00:17
Message: <3724DFFA.3CE398F6@bahnhof.se>
Tim Soderstrom wrote:
> 
>     Oh yes, I'm also looking for an MPEG Video Player for Linux and a
> MPG cruncher/maker (the thing I run to cram all my images into a nice,
> neat MPEG :)
I think that http://www.mpeg.com (or was it .org?) has mpeg systeems for all
os'es.




-- 
//Spider
        [ spi### [at] bahnhofse ]-[ http://www.bahnhof.se/~spider/ ]
What I can do and what I could do, I just don't know anymore
                "Marian"
        By: "Sisters Of Mercy"


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From: Spider
Subject: Re: Animation Tutorials on Walking
Date: 26 Apr 1999 21:46:12
Message: <3725079B.6D92A724@bahnhof.se>
http://www.mpeg.org/MPEG/ was the correct address ... forgive me for any
inconvenience.


Spider wrote:
> 
> Tim Soderstrom wrote:
> >
> >     Oh yes, I'm also looking for an MPEG Video Player for Linux and a
> > MPG cruncher/maker (the thing I run to cram all my images into a nice,
> > neat MPEG :)
> I think that http://www.mpeg.com (or was it .org?) has mpeg systeems for all
> os'es.
> 
> --
> //Spider
>         [ spi### [at] bahnhofse ]-[ http://www.bahnhof.se/~spider/ ]
> What I can do and what I could do, I just don't know anymore
>                 "Marian"
>         By: "Sisters Of Mercy"

-- 
//Spider
        [ spi### [at] bahnhofse ]-[ http://www.bahnhof.se/~spider/ ]
What I can do and what I could do, I just don't know anymore
                "Marian"
        By: "Sisters Of Mercy"


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From: Tim Soderstrom
Subject: Re: Animation Tutorials on Walking
Date: 29 Apr 1999 22:21:31
Message: <37285D97.5D03514C@sitc.net>
Thanks for the help! I think I'll probably just end up using the .INC file,
at least at first. In any case, a walking animation is still a ways off. I
still suck at stills! :) But my friend wants me to make an animation for the
year book, so I need to do it before the summer's out, I spose...

My problem, which I was hoping that the tutorials could also help answer, was
the movement of body parts in non perfect paths. Of course, there could be a
mathematic way of expressing a walk, knowing how to control objects with
greater detail, without using spline paths is one of my goals for
animation....on of many.

Anyways, thanks for all the links!

Tim Soderstrom


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From: Tim Soderstrom
Subject: Re: Animation Tutorials on Walking
Date: 29 Apr 1999 22:24:04
Message: <37285E34.B9ECF8AA@sitc.net>
Spider wrote:

> http://www.mpeg.org/MPEG/ was the correct address ... forgive me for any
> inconvenience.
>

Thanks! I'm hoping that I can also find an MPG Video encoder on that site as
well, it's a pain to have to copy all the crap to my DOS partition...heh..and
even then I don't have an MPG encoder (just AVI)


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