On Fri, 21 Sep 2001 00:33:36 -0700, Ken wrote:
>
>
>Ron Parker wrote:
>
>> See the section in the manual that talks about CSG (Computational Solid
>> Geometry) for more details.
>
>Ron....?
>
>CSG = Constructive Solid Geometry 

Of course.  Silly me.  Don't know what I was thinking.

Actually, what happened is that I read that version sometime 20 years ago in
some pop-science rag and never quite got it out of my head.

-- 
plane{-z,-3normal{crackle scale.2#local a=5;#while(a)warp{repeat x flip x}rotate
z*60#local a=a-1;#end translate-9*x}pigment{rgb 1}}light_source{-9red 1rotate 60
*z}light_source{-9rgb y rotate-z*60}light_source{9-z*18rgb z}text{ttf"arial.ttf"
"RP".01,0translate-<.6,.4,.02>pigment{bozo}}light_source{-z*3rgb-.2}//Ron Parker

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