"Patrick Dugan" <pat### [at] usnetcomcorpcom> wrote in message
news:3c6d12f1@news.povray.org...
> Is there a way to be selective on reflection?  Suppose I have 3 red
spheres
> suspended above a mirrored surface.  Is there anyway to make one of those
> red spheres not reflect into the mirrored surface?  (I know I could simply
> continue the trace and remove the red sphere after it had rendered them
but
> not the surface below, but I looking for something like a "no relection"
> parameter that could be added to the object so in a more complex scene
where
> stopping the trace and restarting might not work.
>

Assuming you're using Megapov or Pov-Ray 3.5

sphere {
 0,1
 pigment {rgb <1,0,0>}
 no_reflection // object does not reflect
 // no_image // object does not appear, can still reflect and cast shadows
 // no_shadow // objects casts no shadows
}

Gail
--
#macro G(H,S)disc{0z.4pigment{onion color_map{[0rgb<sin(H/pi)cos(S/pi)*(H<6)
cos(S/pi)*(H>6)>*18][.4rgb 0]}}translate<H-5S-3,9>}#end G(3,5)G(2,5.5)G(1,5)
G(.6,4)G(.5,3)G(.6,2)G(1,1)G(2,.5)G(3,.7)G(3.2,1.6)G(3.1,2.5)G(2.2,2.5)G(9,5
)G(8,5.5)G(7,5)G(7,4)G(7.7,3.3)G(8.3,2.7)G(9,2)G(9,1)G(8,.5)G(7,1)//GS

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