"Steve Anger" <nomail@nomail> wrote:
> I'm using the following declaration to create a red spot light with a visible
> beam and then using the declaration in multiple place. The object appears
> multiple times in the rendered scene but only one instance appears to have a
> light source. Can you duplicate light source in this way?
>
> #declare MySpotLight =
> union {
>  light_source {
>   <0,-0.35, 0>
>   color Red*2
>   spotlight
>   radius 25
>   falloff 30
>   point_at <0, 0.3095, 0>
>  }
>
>  cone {
>   <0,-0.5, 0>, 0.0
>   <0, +0.3,0>, 0.4
>   pigment { rgbt<1,1,1,1> }
>   finish { ambient 0.0 diffuse 0 }
>   hollow
>   no_shadow
>   photons { pass_through }
>   interior {
>    media {
>     scattering {3, Red*0.7 extinction 1.0 }
>     samples 1,1
>    }
>   }
>  }
> }

The reason I wasn't seeing the other light sources was due to the scattering
method which is viewer angle dependent.

Post a reply to this message