"Tony[B]" wrote:
> 
> > Can you post a sample ?
> 
> Basically, this is what I'm doing. The light won't affect the plane, but it
> will highlight the ball.
> 
> light_source {<1,1,-1>*10 1 groups "walla"}
> plane {y,0 pigment {rgb 1} light_group "!walla"}
> sphere {y,1 pigment {red 1} finish {phong 1}}

This i knew, but it would not work with radiosity in the way Gilles wanted it
(if i understood him right).  

It would need some light_group support for the finish-statement like:

finish {
   diffuse 0.6 light_group "!lg1"
   specular 0.3 light_group "lg1"
}

Christoph

--
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/

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