float $pupil=`pointPosition -w pupil.vtx`;
and the vertex in another.
float $eye=`pointPosition -w eye.vtx`;
I want to snap the first vertex to the second one with only small difference in the z direction
float $delta=pupil - 1.2
How can I now snap eye to pupil so that eye.vtx get the coordinates of pupil.vtx except in the z axis, where it should get $delta?