So what am I doing wrong?

#include "colors.inc"
#include "textures.inc"
#include "stones.inc"
#include "metals.inc"

//global_settings { max_trace_level 12 }


//background {Black+Blue/5}

sphere {<0,400,0>,13
        rotate<0,0,0>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,20>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,-20>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,40>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,-40>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,60>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,-60>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,80>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,-80>
        pigment {White}
        }

sphere {<0,400,0>,13
        rotate<0,0,100>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,-100>
        pigment {White}
        }



#declare f=.084;    // was 0.08
#declare R=399;



#declare funk=

isosurface {          function
          {noise3d(x*f,y*f,z*f)}

         accuracy 0.01
         threshold 0.0

         bounded_by {
         sphere{0,500*(.40+clock)}
                    }
        rotate <0,0,90>


//pigment{functionabs((noise3d(x*2,y*4,z*4)*.875)&(noise3d(x*4,y*2,z*4)*.875)&(noise3d(x*4,y*4,z*2)*.875))
poly_wave}
        pigment{Green}
        finish{ambient 0.20 reflection .0}
        normal {crackle}
        }

//object {funk }

camera {
  location <0,170,-400>*3.1
  look_at <0,100,0>
  angle 48
}


light_source{<0.005,0.00081,0.00081>  color White*14
media_interaction on}

  /*
  light_source {  <0,0,0>
    color White*14
    spotlight
    radius 90
    falloff 89//28
    tightness 1
    point_at x

  }
    */
#declare j=10;


media {                         //media scattering
  intervals 10
  scattering { 2, red 0.05 blue 0.001 green 0.02}
  samples 1, 10
  confidence 0.9999
  variance 1/1000
  ratio 0.9
}

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Attachments:
Download 'junk.jpg' (43 KB)

Preview of image 'junk.jpg'

"Greg M. Johnson" wrote:
> 
> So what am I doing wrong?
> 
> #include "colors.inc"
> #include "textures.inc"
> #include "stones.inc"
> #include "metals.inc"
> 
> //global_settings { max_trace_level 12 }
> 
> //background {Black+Blue/5}
> 
> sphere {<0,400,0>,13
>         rotate<0,0,0>
>         pigment {White}
>         }
> sphere {<0,400,0>,13
>         rotate<0,0,20>
>         pigment {White}
>         }
> sphere {<0,400,0>,13
>         rotate<0,0,-20>
>         pigment {White}
>         }
> sphere {<0,400,0>,13
>         rotate<0,0,40>
>         pigment {White}
>         }
> sphere {<0,400,0>,13
>         rotate<0,0,-40>
>         pigment {White}
>         }
> sphere {<0,400,0>,13
>         rotate<0,0,60>
>         pigment {White}
>         }
> sphere {<0,400,0>,13
>         rotate<0,0,-60>
>         pigment {White}
>         }
> sphere {<0,400,0>,13
>         rotate<0,0,80>
>         pigment {White}
>         }
> sphere {<0,400,0>,13
>         rotate<0,0,-80>
>         pigment {White}
>         }
> 
> sphere {<0,400,0>,13
>         rotate<0,0,100>
>         pigment {White}
>         }
> sphere {<0,400,0>,13
>         rotate<0,0,-100>
>         pigment {White}
>         }
> 
> #declare f=.084;    // was 0.08
> #declare R=399;
> 
> #declare funk=
> 
> isosurface {          function
>           {noise3d(x*f,y*f,z*f)}
> 
>          accuracy 0.01
>          threshold 0.0
> 
>          bounded_by {
>          sphere{0,500*(.40+clock)}
>                     }
>         rotate <0,0,90>
> 
>
//pigment{functionabs((noise3d(x*2,y*4,z*4)*.875)&(noise3d(x*4,y*2,z*4)*.875)&(noise3d(x*4,y*4,z*2)*.875))
> poly_wave}
>         pigment{Green}
>         finish{ambient 0.20 reflection .0}
>         normal {crackle}
>         }
> 
> //object {funk }
> 
> camera {
>   location <0,170,-400>*3.1
>   look_at <0,100,0>
>   angle 48
> }
> 
> light_source{<0.005,0.00081,0.00081>  color White*14
> media_interaction on}
> 
>   /*
>   light_source {  <0,0,0>
>     color White*14
>     spotlight
>     radius 90
>     falloff 89//28
>     tightness 1
>     point_at x
> 
>   }
>     */
> #declare j=10;
> 
> media {                         //media scattering
>   intervals 10
>   scattering { 2, red 0.05 blue 0.001 green 0.02}
>   samples 1, 10
>   confidence 0.9999
>   variance 1/1000
>   ratio 0.9
> }
> 
>   ------------------------------------------------------------------------
>  [Image]

	There is, but it doesn't appear because there's nothing to stop the
rays (except for the spheres, but the media here is white anyway).
	If you add a plane { -z, -100 pigment { rgbt 1 } hollow } the media
appears...

		Jerome

PS: if you render at higher res, you'll see the media appear for a few
pixels in the pic...

-- 
*******************************

* they'll tell you what can't * mailto:ber### [at] inamecom
* be done and why...          * http://www.enst.fr/~jberger
* Then do it.                 *
*******************************

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Attached is a render with your parameters at 640x480. One of the sphere
has a blue pigment, one is red and one is green, the other are still
white  but the media effect washes them out completely and all appear
white...

		Jerome

PS: jpeg played havoc with most of the blue dots from the media but some
still remain to show it's here...

-- 
*******************************

* they'll tell you what can't * mailto:ber### [at] inamecom
* be done and why...          * http://www.enst.fr/~jberger
* Then do it.                 *
*******************************

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Attachments:
Download 'test.jpg' (45 KB)

Preview of image 'test.jpg'

If you up the quality settings, you can make the media appear, but it
will cost you a lot of time... This one rendered at 10PPS on a PII 266

media {                         //media scattering
  intervals 100
  scattering { 2, red 0.05 blue 0.001 green 0.02}
  samples 10, 100
  confidence 0.999999
  variance 1/100000
  ratio 0.9
}

		Jerome

-- 
*******************************

* they'll tell you what can't * mailto:ber### [at] inamecom
* be done and why...          * http://www.enst.fr/~jberger
* Then do it.                 *
*******************************

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Attachments:
Download 'test.jpg' (14 KB)

Preview of image 'test.jpg'

grumble

--
GrimDude
gri### [at] netzerocom

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Thanks for the effort.  What I eventually am trying to get is a "christmas bulb in
a wiffle ball in the fog," except my wiffle ball is an isosurface.

This whole effect renders quickly, is intuitively set up, and only requires a
White*14 intensity SPOTLIGHT.

When i go to POINTLIGHT, I have to put that plane in there and raise the intensity
several orders of magnitude to get it to work. And as you said, requires a long
render time.

What's the difference between spot & point lights???  Is this "intentional"??

"Jerome M. BERGER" wrote:

>         Attached is a render with your parameters at 640x480. One of the sphere
> has a blue pigment, one is red and one is green, the other are still
> white  but the media effect washes them out completely and all appear
> white...
>
>                 Jerome
>
> PS: jpeg played havoc with most of the blue dots from the media but some
> still remain to show it's here...
>
> --
> *******************************

> * they'll tell you what can't * mailto:ber### [at] inamecom
> * be done and why...          * http://www.enst.fr/~jberger
> * Then do it.                 *
> *******************************
>
>   ------------------------------------------------------------------------
>  [Image]

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Greg M. Johnson <"gregj;-)56590"@aol.c;-)om> wrote in message > What's the
difference between spot & point lights???  Is this "intentional"??
>

Spotlight works like a spotlight, er search light if you will. :)

Assuming, of course, that you define it properly.

If you are using Pov 4 Windows, just click on the area indicated in the
included image, while your Pov F.E. is up and running. ;)
--
GrimDude
gri### [at] netzerocom

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Attachments:
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Preview of image 'Start.jpg'

>If you are using Pov 4 Windows, just click on the area indicated in the
>included image, while your Pov F.E. is up and running. ;)
>--


Haha! I almost got a heart-attack there! Have I missed something, I thought.
;o)

Simen.

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heh

--
GrimDude
gri### [at] netzerocom

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huh

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