Parasonic wrote:
> 
> Now that I have made my wall, I need to cut a few shapes into it (i.e.: for
> a door). I have tried the difference statement, but the recursiveness of a
> while loop is giving me trouble on one hand, errors on the other. Can you
> help me to simply make a hole in the wall?

Wrap your while loop in a union and difference from that.

Using Peter's example

#declare Box = box { -1, 1 }

#declare Wall =
union{
#declare i=0;
#while (i<5)
  object { Box translate 2.1*i*x }
  #declare i=i+1;
#end
}

difference {
 object {Wall}
  box{-1,1}
}

-- 
Ken Tyler

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