[Closed] Fix y-up to z-up pointcache

Hello!
I’m trying fix problem when I use pointcache written in y-up app (softimage) in 3ds max. I’m loading softimage’s pointcache in max’s poincache modifier and of course vertexes not in expected position.
So, I’m trying to revert changes using xform modfier:

 (
 	softimageMatrix = (matrix3 [1,0,0] [0,0,1] [0,-1,0] [0,0,0])
 	modPanel.addModToSelection (xform())
 	fixedMatrix = softimageMatrix
 	fixedMatrix.row4 = $.transform.row4 *-1
 	$.modifiers[#xform].gizmo.transform = fixedMatrix
 )
 

It seems work. I’m not sure whether I’m doing it right.