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From: zman
Subject: Amiga Juggler
Date: 12 Mar 2008 12:30:00
Message: <web.47d812e1a2654c5bf66930fa0@news.povray.org>
Does anyone have a PovRay input file that looks like the Amiga Juggler demo? I'm
sure I can make at least the static one pretty quickly but I would like to get
the animation too. I figured I would ask before I get going...


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From: Nicolas Alvarez
Subject: Re: Amiga Juggler
Date: 12 Mar 2008 12:37:39
Message: <47d814e3$1@news.povray.org>

> Does anyone have a PovRay input file that looks like the Amiga Juggler demo? I'm
> sure I can make at least the static one pretty quickly but I would like to get
> the animation too. I figured I would ask before I get going...

I was looking for this just yesterday. If you could find the code of the 
original renderer, or whatever input file was used, it should be easy to 
convert it to POV-Ray (it's just sphere positions and colors!).


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From: zman
Subject: Re: Amiga Juggler
Date: 12 Mar 2008 12:50:00
Message: <web.47d816c5df0163a4f66930fa0@news.povray.org>
Nicolas Alvarez <nic### [at] gmailisthebestcom> wrote:
> I was looking for this just yesterday. If you could find the code of the
> original renderer, or whatever input file was used, it should be easy to
> convert it to POV-Ray (it's just sphere positions and colors!).

I could not find original source for the renderer or input file... this article
gives some source for the final animation movie type rendering but that is all

http://home.comcast.net/~erniew/juggler.html

I guess I could try to track down Eric Graham and see if he has anything. I just
figured someone would have reproduced such a classic given how many POV ray
files have been created over the years.


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From: Nicolas Alvarez
Subject: Re: Amiga Juggler
Date: 12 Mar 2008 12:57:38
Message: <47d81992$1@news.povray.org>

> Nicolas Alvarez <nic### [at] gmailisthebestcom> wrote:
>> I was looking for this just yesterday. If you could find the code of the
>> original renderer, or whatever input file was used, it should be easy to
>> convert it to POV-Ray (it's just sphere positions and colors!).
> 
> I could not find original source for the renderer or input file... this article
> gives some source for the final animation movie type rendering but that is all
> 
> http://home.comcast.net/~erniew/juggler.html
> 
> I guess I could try to track down Eric Graham and see if he has anything. I just
> figured someone would have reproduced such a classic given how many POV ray
> files have been created over the years.

Maybe you could start by asking Ernie Wright, the author of that website 
(his email is on the front page). He may know how to contact Eric 
Graham, or maybe even he has the needed sources...


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From: zman
Subject: Re: Amiga Juggler
Date: 12 Mar 2008 13:10:01
Message: <web.47d81c66df0163a4f66930fa0@news.povray.org>
Nicolas Alvarez <nic### [at] gmailisthebestcom> wrote:
> Maybe you could start by asking Ernie Wright, the author of that website
> (his email is on the front page). He may know how to contact Eric
> Graham, or maybe even he has the needed sources...

already in progress ;-) I will let you know the outcome.


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From: Bob Hughes
Subject: Re: Amiga Juggler
Date: 13 Mar 2008 06:23:44
Message: <47d90ec0@news.povray.org>
"zman" <zma### [at] thezbuffercom> wrote in message 
news:web.47d816c5df0163a4f66930fa0@news.povray.org...
>
> http://home.comcast.net/~erniew/juggler.html
>
> figured someone would have reproduced such a classic given how many POV 
> ray
> files have been created over the years.


http://0mniverse.com/anims/amiga-like_juggler.gif

This isn't exactly a replica, just put it together after reading this in the 
early morning hours here.

That was an interesting story about this juggler, I hadn't seen it before... 
or don't remember it from so many years ago. I used to stare at the stuff on 
the Amiga displays in store windows, too.  ;^)

Here's the rather simplistic (yet long) SDL you can try to work with if you 
want. Also uses the oscillating clock from clockmod.inc by Chris Colefax, 
done so I could move the arms. No doubt this could be improved upon so I 
leave that up to you! (Wow! it's a longer file than I thought! sorry). 
Especially badly done, perhaps, is the ultra simple (and separate) splines 
for ball motions. First thing that came to mind I tried.

/* not exactly the Amiga Juggler */

camera {
 location -9.33*z
 look_at <0.33,-0.67,-0.33>
 angle 58
 rotate <22.5,-45,0>
}

light_source {
 -99*z,
 1
 area_light <5,0,0>,<0,5,0>,9,9 jitter adaptive 1
 rotate <45,-45,0>
}

sky_sphere {
 pigment {
  function {abs(y)}
  color_map {
   [0 rgb <0.4,0.6,0.9>]
   [0.15 rgb <0.2,0.5,1>]
   [1 rgb <0.1,0.3,0.8>]
  }
 }
}

// floor
box {
 <-10,0,-10>,<10,-1,10>
 texture {
  pigment {
   checker color rgb <1,1,0> color rgb <0,1,0>
  }
  finish {
   ambient 0.05
   diffuse 0.75
  }
 }
 translate -5.9*y
}


// ball texture
#declare Mirrored=
material {
 texture {
  pigment {
   color rgb 0.1
  }
  normal {
   wrinkles 0
  }
  finish {
   ambient 0
   diffuse 0.1
   specular 0.9 roughness 0.002
   reflection {
    0.9,0.999
   }
  }
 }
}


// arm motion clocks

#declare clock_type="O";
#declare clock_start=0.25;
#declare clock_finish=0.75;
#include "clockmod.inc"
#declare OcR=-mclock;

#declare clock_type="O";
#declare clock_start=0;
#declare clock_finish=0.5;
#include "clockmod.inc"
#declare OcL=mclock;

#declare JugglePath1=
spline {
 natural_spline
 0, <-1,0,0>
 0.5, <0,0.1,0>
 1, <1,0,0>
}

sphere {
 JugglePath1(clock),0.5
 material {
  Mirrored
 }
}

#declare JugglePath2=
spline {
 natural_spline
 0, <1,0,0>
 0.33, <0.75,1,0>
 0.67, <0.4,1.7,0>
 1, <0,2,0>
}

sphere {
 JugglePath2(clock),0.5
 material {
  Mirrored
 }
}

#declare JugglePath3=
spline {
 natural_spline
 0, <0,2,0>
 0.33, <-0.5,1.8,0>
 0.67, <-0.75,1,0>
 1, <-1,0,0>
}

sphere {
 JugglePath3(clock),0.5
 material {
  Mirrored
 }
}

// JUGGLER
union {
union { // eyes
 sphere {
  <-0.25,0.4,-0.6>,0.2
 }
 sphere {
  <0.25,0.4,-0.6>,0.2
 }
 pigment {
  rgb <0.1,0.1,0.9>
 }
}
union { // hair
 sphere {
  <-0.05,0.5,0>,0.67
 }
 sphere {
  <0,0.5,0.1>,0.67
 }
 sphere {
  <0.125,0.4,0.05>,0.67
 }
 pigment {
  rgb <0.3,0.1,0.1>
 }
}
union { // head
 sphere {
  <0,0.33,0>,0.75
 }
 cylinder {
  <0,-0.25,0.1>,<0,-0.75,0.1>,0.4
 }
 pigment {
  rgb <1,0.7,0.3>
 }
}
union { // upper body
 sphere {
  0,1.8
  scale <1,0.5,0.5>
  translate <0,-1.25,0>
 }
 sphere {
  0,1.7
  scale <1,0.5,0.5>
  translate <0,-1.75,0>
 }
 sphere {
  0,1.6
  scale <1,0.5,0.5>
  translate <0,-2.25,0>
 }
 sphere {
  0,1.5
  scale <1,0.5,0.5>
  translate <0,-2.75,0>
 }
 sphere {
  0,1.4
  scale <1,0.5,0.5>
  translate <0,-3.25,0>
 }
 sphere {
  0,1.3
  scale <1,0.5,0.5>
  translate <0,-3.75,0>
 }
 // upper left arm
 sphere {
  0,0.5
  translate <1.5,-1.5,0>
 }
 sphere {
  0,0.475
  translate <1.55,-2,-0.25>
 }
 sphere {
  0,0.45
  translate <1.6,-2.5,-0.5>
 }
union {
 // lower left arm
 sphere {
  0,0.4
  translate <1.65,-3,-1>
 }
 sphere {
  0,0.375
  translate <1.7,-2.875,-1.5>
 }
 sphere {
  0,0.35
  translate <1.65,-2.75,-1.75>
 }
 sphere {
  0,0.325
  translate <1.6,-2.625,-2>
 }
 sphere {
  0,0.3
  translate <1.55,-2.5,-2.25>
 }
 sphere { // left hand
  0,0.35
  scale <1,0.5,1.25>
  translate <1.5,-2.375,-2.75>
 }
 pigment {
  rgb <1,0.7,0.3>
 }
 translate <-1.65,3,1>
 rotate <10,-5,0>*OcL
 translate <1.65,-3,-1>
}
 // upper right arm
 sphere {
  0,0.5
  translate <-1.5,-1.5,0>
 }
 sphere {
  0,0.475
  translate <-1.55,-2,-0.25>
 }
 sphere {
  0,0.45
  translate <-1.6,-2.5,-0.5>
 }
union {
 // lower right arm
 sphere {
  0,0.4
  translate <-1.65,-3,-1>
 }
 sphere {
  0,0.375
  translate <-1.7,-2.875,-1.5>
 }
 sphere {
  0,0.35
  translate <-1.65,-2.75,-1.75>
 }
 sphere {
  0,0.325
  translate <-1.6,-2.625,-2>
 }
 sphere {
  0,0.3
  translate <-1.55,-2.5,-2.25>
 }
 sphere { // right hand
  0,0.35
  scale <1,0.5,1.25>
  translate <-1.5,-2.375,-2.75>
 }
 pigment {
  rgb <1,0.7,0.3>
 }
 translate <1.65,3,1>
 rotate <-5,10,0>*OcR
 translate <-1.65,-3,-1>
}
 pigment {
  rgb <1,0,0>
 }
}
union {
 sphere {
  0,1.4
  scale <1,0.5,0.5>
  translate <0,-4.25,0>
 }
 sphere {
  0,1.5
  scale <1,0.5,0.6>
  translate <0,-4.75,0>
 }
 // right leg
 sphere {
  0,0.7
  translate <-0.75,-5.5,0>
 }
 sphere {
  0,0.65
  translate <-0.85,-6.5,0>
 }
 sphere {
  0,0.6
  translate <-0.95,-7.5,0>
 }
 sphere {
  0,0.55
  translate <-1.05,-8.5,0>
 }
 sphere {
  0,0.5
  translate <-1.15,-9.5,0>
 }
 sphere { // right foot
  0,0.5
  scale <1,0.5,1.75>
  rotate 15*y
  translate <-1.33,-10,-0.5>
  pigment {
   rgb 0.01
  }
 }
 // left leg
 sphere {
  0,0.7
  translate <0.75,-5.5,0>
 }
 sphere {
  0,0.65
  translate <0.85,-6.5,0>
 }
 sphere {
  0,0.6
  translate <0.95,-7.5,0>
 }
 sphere {
  0,0.55
  translate <1.05,-8.5,0>
 }
 sphere {
  0,0.5
  translate <1.15,-9.5,0>
 }
 sphere { // left foot
  0,0.5
  scale <1,0.5,1.75>
  rotate -15*y
  translate <1.33,-10,-0.5>
  pigment {
   rgb 0.01
  }
 }
 pigment {
  rgb <0,0,1>
 }
}

 scale 0.67
 translate <0,1,2>
}

/* END */


/*bob hughes*/


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From: Nicolas Alvarez
Subject: Re: Amiga Juggler
Date: 13 Mar 2008 08:02:38
Message: <47d925ee$1@news.povray.org>

> "zman" <zma### [at] thezbuffercom> wrote in message 
> news:web.47d816c5df0163a4f66930fa0@news.povray.org...
>>
>> http://home.comcast.net/~erniew/juggler.html
>>
>> figured someone would have reproduced such a classic given how many 
>> POV ray
>> files have been created over the years.
> 
> http://0mniverse.com/anims/amiga-like_juggler.gif
> 
> This isn't exactly a replica, just put it together after reading this in 
> the early morning hours here.
> 
> That was an interesting story about this juggler, I hadn't seen it 
> before... or don't remember it from so many years ago. I used to stare 
> at the stuff on the Amiga displays in store windows, too.  ;^)
> 
> Here's the rather simplistic (yet long) SDL you can try to work with if 
> you want. Also uses the oscillating clock from clockmod.inc by Chris 
> Colefax, done so I could move the arms. No doubt this could be improved 
> upon so I leave that up to you! (Wow! it's a longer file than I thought! 
> sorry). Especially badly done, perhaps, is the ultra simple (and 
> separate) splines for ball motions. First thing that came to mind I tried.

Balls look OK to me, the arms have some weird movements...


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From: Bob Hughes
Subject: Re: Amiga Juggler
Date: 13 Mar 2008 22:17:34
Message: <47d9ee4e$1@news.povray.org>
"Nicolas Alvarez" <nic### [at] gmailisthebestcom> wrote in message 
news:47d925ee$1@news.povray.org...

>>
>> uses the oscillating clock from clockmod.inc by Chris Colefax, done so I 
>> could move the arms.
>
> Balls look OK to me

Maybe not if you were to animate it from straight on instead of over to one 
side. ;^)

>  the arms have some weird movements...

That goes without saying. LOL! Got to use your imagination (ignore things). 
:^)
I chose to use that oscillating motion so it would look like he was both 
catching and throwing but it obviously needs way more coding to do a real 
catch and throw. Possibly more splines would work for that, because the 
starts and stops of the clockmod.inc is probably isn't sufficient for this.
And of course I couldn't help not thinking about mechsim stuff using MegaPOV 
to do it all. That would be a trick to bounce those balls off the hands in 
the right way. A juggler needing lots of practice (and rerendering).
-- 
/*bob hughes*/


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From: c h r i s
Subject: Re: Amiga Juggler
Date: 28 Mar 2009 05:15:01
Message: <web.49cde9e9df0163a4d62519e10@news.povray.org>
"Bob Hughes" <omniverse charter net> wrote:

> http://0mniverse.com/anims/amiga-like_juggler.gif

Is that Steve Jobs presenting the latest Apple gadget?


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