Your cone isn't pointint at the right position.
While your spotlight points at <0,25,-20>, your
cone just points to <0,25,0>. Looks_like doesn't
rotate objects, it just uses them as defined.
And perhaps scaling isn't right, though I'm not
sure without a look at your scene. The cone's
end is only 2.5, but perhaps that is wanted...

Nick Holcomb had this problem:

> #declare Light_Cone =
> cone { <0,1.928,0>, .182
>        <0,25,0>, 2.5
>      texture { pigment { White }
>                finish { ambient 6 }
>              }
>      }
>
> light_source {
>                      <0,1.928,0>
>                      color White
>                      spotlight
>                      point_at <0,25,-20>
>                      radius .182
>                      falloff 5.725
>                      looks_like { object { Light_Cone } }
>                    }
>

--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html

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