"Woody" <nomail@nomail> wrote in message 
news:web.48725cdab2e4562049b4acd50@news.povray.org...
>
> Have another question regarding creating a shaped light. Let's say I have 
> the
> following simple scen
>
> box{ -1, 1 scale 100 scale z/100000 translate z*-10 pigment{color Red}
> finish{ambient 0}}
> sphere{0,1 }
> light_souce{ z*10 spotlight point_at z*-10 radius 30 falloff 30}
>
> How do do I create a scene with a light source against the box with the 
> shadow
> of the sphere but without the sphere actually being in the scene. I though 
> of
> using a light_group and difference like
> ...

Did you try adding 'no_image' to the sphere?

Chris B.

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