> Your objects need a full texture, including a finish:
>
> sky_sphere { pigment { rgb 1 } } // Light
> sphere { 0,1 texture { pigment { rgb 1 } finish { ambient 0.5 diffuse 1
> brilliance 3 } } }
> plane { y,-1 texture { pigment { rgb .6 } finish { ambient 0.2 diffuse 1
> brilliance 2 } } }

Thanks for your reply, but why have you increased the ambient value in the
sphere and plane? That way, they will emit light. I only want the sky to
emit light. Raising the diffuse parameters is going to brighten the scene
too, but it still doesn't allow the *light* to increase. Lets say I have a
dark material somewhere; an object that is rather dark. Shouldn't it still
be able to respond to a strong lightsource?

Regards,
Hugo

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