http://erwanleroy.com/create-position-reference-pref-pass-in-vray-for-maya/ [erwanleroy.com]

hello

i want to recreate a Positon reference in mantra!!

Can you help me?

thanks

use Rest SOP
and either apply it to your geo before any deformation happens
or use second input to connect static (rest) version of the same mesh
the geo has to be unpacked

then in shader you can access this using Rest VOP