So, for good result i find the 'near zero value', .25 and .5, not less. I think
it's a gremlin's fake who make noise on floating point operations...


#declare DeltaLenSquared = vdot((Pos_ - Pos_compare),(Pos_ - Pos_compare));
#if (DeltaLenSquared < 0.25)



#declare DeltaLen = vlength(Pos_ - Pos_compare);
#if (DeltaLen < 0.5)


Thanks a lot

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