On Fri, 07 Sep 2001 04:29:43 -0700, Ken wrote:
>
>

>
>> Powerful computer do not care, but small one might !
>> SOR was already available in DKBTrace,
>
>I don't recall SOR being introduced until POV-Ray v3.0 at the same time
>Lathe and Prisms were introduced.

What he said.  

--
#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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