Documentation - Maxscript
Mirror_Morph : Modifier
This is an alternative to the simmetry tools in the Ribbon Modeling toolbar, but it's a modifier so you can have a non-destructive workflow. With this you can mirror morph targets mantaining the right order of the vertices, something you can't do with the standard mirror or simmetry modifiers.
Properties
Get/set the node on which to base the mirror. The software then calculates the mirror based on the specified axis with the specified Tolerance value (see following).
Get/set the axis on which to base the mirror, in the object’s local coordinate system. The center of the axis is determined by the pivot point of the picked object. Changing the axis recalculates the mirror for the picked model.
0 - X.
1 - Y.
2 - Z.
Get/set the distance that the software uses to determine whether two vertices are symmetrical. If the picked model is not completely symmetrical, increase this value slightly.
Get/set the type of the mirroring:
0 - + To - : copies the position of the vertices in the positive side of the axis to the negative side.
1 - - To + : copies the position of the vertices in the negative side of the axis to the positive side.
2 - Flip : flips the position of the vertices from one side to the other.