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>> Can I use the "intersection" operator as intersection test, i.e. check
>> wether
>> the result is empty?
>
> No.
Intersection is a keyword for a CSG object in POV.
This should work though...
#include "rand.inc
#macro collision(A B rez)
#local result = false;
#if (((min_extent(A).x > max_extent(B).x ) |
(min_extent(B).x > max_extent(A).x ) |
(min_extent(A).y > max_extent(B).y ) |
(min_extent(B).y > max_extent(A).y ) |
(min_extent(A).z > max_extent(B).z ) |
(min_extent(B).z > max_extent(A).z ))=false)
#local AB = intersection{object{A} object{B}};
#local Mn = min_extent(AB);
#local Mx = max_extent(AB);
#local S1 = seed(1);
#local Pt = VRand_In_Box(Mn, Mx, S1);
#local cnt = 0;
#while ((result = false) & (cnt < rez))
#local Pt = VRand_In_Box(Mn, Mx, S1);
#if (inside(AB, Pt))
#local result = true;
#end
#local cnt = cnt + 1;
#end
#end
result
#end
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