On 22 Oct 2001 16:23:35 -0400, Ron Parker wrote:
> On Mon, 22 Oct 2001 14:35:57 -0400, Trevor Quayle wrote:
>> work that way). As Ron shows, one way to simulate this is with absorbing
>> media.  As a quicker method, you could use constant fog with a black
>> pigment, as the features of media aren't really required here. Adding this
> 
> You have greatly misunderstood the point of my demonstration.
> 
> That absorbing media is funny.  Notice how it doesn't do anything to the
> first five green cylinders, but the other five (the reflections of the 
> first five in the surface of the sphere) fade out?  There's something special
> going on there that you can't do with fog.  

Oh, and just for fun, try adding a sky_sphere.  One that's not black.  I'll
wait here while you try that...

sky_sphere {pigment {color blue 1}}

So, uh... shouldn't the background still be black, or at least darker than
blue 1?  There really is something funny going on here.

--
#macro R(L P)sphere{L __}cylinder{L P __}#end#macro P(_1)union{R(z+_ z)R(-z _-z)
R(_-z*3_+z)torus{1__ clipped_by{plane{_ 0}}}translate z+_1}#end#macro S(_)9-(_1-
_)*(_1-_)#end#macro Z(_1 _ __)union{P(_)P(-_)R(y-z-1_)translate.1*_1-y*8pigment{
rgb<S(7)S(5)S(3)>}}#if(_1)Z(_1-__,_,__)#end#end Z(10x*-2,.2)camera{rotate x*90}

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