Mesh self intersection

Hello forum
I use mmgtools for generating a quality surface mesh of a watertight triangulation, without
self intersecting triangles.
Can (or cannot) the resulting mmg surface have self intersection?
Regards
Giovanni

Hello,
Normally, if the input is watertight (conforming elements with no self intersections/superpositions/cracks) then the output is watertight too.

Bests,
Luca