"Dan Johnson" <zap### [at] hotmailcom> wrote :
> I'm trying to make three hemispheres with different colors,

    This is what happened when I used both "filter" -and- "transmit".

////////////////  Sphere  ///////////
sphere  {
  < 0.0, 0.0, 0.0 >, 1
  texture {
           pigment { rgbft < 2.0, 0.0, 0.0, 0.5, 0.5 > }
          }
  translate < 0.66, 0.0, 0.0 >
  rotate    < 0.00, 0.0, 0.0 >
    }
///////////////////////////////end Sphere

////////////////  Sphere  ///////////
sphere  {
  < 0.0, 0.0, 0.0 >, 1
  texture {
           pigment { rgbft < 0.0, 2.0, 0.0, 0.5, 0.5 > }
          }
  translate < 0.66, 0.0, 0.0 >
  rotate    < 0.00, 120.0, 0.0 >
    }
///////////////////////////////end Sphere
////////////////  Sphere  ///////////
sphere  {
  < 0.0, 0.0, 0.0 >, 1
  texture {
           pigment { rgbft < 0.0, 0.0, 2.0, 0.5, 0.5 > }
          }
  translate < 0.66, 0.0, 0.0 >
  rotate    < 0.00, 240.0, 0.0 >
    }
///////////////////////////////end Sphere

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Attachments:
Download 'Color Wheel.jpg' (9 KB)

Preview of image 'Color Wheel.jpg'

Bill DeWitt wrote:

> "Dan Johnson" <zap### [at] hotmailcom> wrote :
> > I'm trying to make three hemispheres with different colors,
>
>     This is what happened when I used both "filter" -and- "transmit".
>
> ////////////////  Sphere  ///////////
> sphere  {
>   < 0.0, 0.0, 0.0 >, 1
>   texture {
>            pigment { rgbft < 2.0, 0.0, 0.0, 0.5, 0.5 > }
>           }
>   translate < 0.66, 0.0, 0.0 >
>   rotate    < 0.00, 0.0, 0.0 >
>     }
> ///////////////////////////////end Sphere
>
> ////////////////  Sphere  ///////////
> sphere  {
>   < 0.0, 0.0, 0.0 >, 1
>   texture {
>            pigment { rgbft < 0.0, 2.0, 0.0, 0.5, 0.5 > }
>           }
>   translate < 0.66, 0.0, 0.0 >
>   rotate    < 0.00, 120.0, 0.0 >
>     }
> ///////////////////////////////end Sphere
> ////////////////  Sphere  ///////////
> sphere  {
>   < 0.0, 0.0, 0.0 >, 1
>   texture {
>            pigment { rgbft < 0.0, 0.0, 2.0, 0.5, 0.5 > }
>           }
>   translate < 0.66, 0.0, 0.0 >
>   rotate    < 0.00, 240.0, 0.0 >
>     }
> ///////////////////////////////end Sphere
>
>  [Image]

You forgot
camera {location <0,5,0> look_at 0}
light_source {<0,100,0> rgb 1}
plane {y,0 pigment{White}}

Interesting, but couldn't make it work in my situation.  Had to make it
out of eight objects.  I'm still looking for ideas for other ways to do
it.


--
Dan Johnson

http://www.geocities.com/zapob

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Attachments:
Download 'spherical_triangle.jpg' (18 KB)

Preview of image 'spherical_triangle.jpg'

"Dan Johnson" <zap### [at] hotmailcom> wrote :
>
> You forgot
> camera {location <0,5,0> look_at 0}
> light_source {<0,100,0> rgb 1}
> plane {y,0 pigment{White}}

    I assumed it.

> Interesting, but couldn't make it work in my situation.  Had to make it
> out of eight objects.  I'm still looking for ideas for other ways to do
> it.

    Two objects with a radial pigment.

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Dan Johnson wrote:
> 
> Interesting, but couldn't make it work in my situation.  Had to make it
> out of eight objects.  I'm still looking for ideas for other ways to do
> it.

What about a single sphere with a 4*2 pixels image_map ?

Fabien.

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How about adding "max_trace_level 6"?

-- 
char*i="b[7FK@`3NB6>B:b3O6>:B:b3O6><`3:;8:6f733:>::b?7B>:>^B>C73;S1";
main(_,c,m){for(m=32;c=*i++-49;c&m?puts(""):m)for(_=(
c/4)&7;putchar(m),_--?m:(_=(1<<(c&3))-1,(m^=3)&3););}    /*- Warp -*/

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