Polynurbs is a tool to convert nurbs objects to quad poly.

A lot of us want to use nurbs or spline to make our quad meshes. I have tried a lot of solutions, scripts, surface modifier, turn to poly and detriangulate… but no one works as we want.

Polynurbs allows you to use all the nurbs tools (1-rail, 2-rail, u-loft, uv-loft) and then convert to 100% quad poly meshes, easy and fast.


With PolyNurbs you can:

  • Convert a nurbs lattice to poly object (so you can turn on subD in your poly, and they will have the same shape).
  • Convert poly object to nurbs lattice (inverse operation. Note: only patch-like meshes can be converted, due to nurbs maths)
  • Convert a nurbs object to poly object, fitting points in their surface (with SubD activated, this poly will no fit your nurbs, due to hull convexity propiertie)
  • Additionally, it can convert spline to nurbs, and nurbs to spline.

See videos for more info.

Installation instructions:

  • Download file PolyNurbs 1.0
  • Drag and drop PolyNurbs.mzp to 3ds Max. If you are running Windows Vista or Windows Seven, you have to run 3ds Max as administrator, otherwise MZP files doesnt work (right click-“run as administrator”)
  • PolyNurbs will be avaliable in customize, under “LuisLlamas category”



  1. waxmodeler
    13 octubre, 2011

    Great Script,

    I look forward to it, thanks.

  2. 17 octubre, 2011

    can you please send me the beta to test it,,thanks

  3. 18 octubre, 2011

    “spent lots of time to search, findally i get it, useful finfo me for me!”

  4. Alain
    18 octubre, 2011


    Would it be possible for me to test this script?



  5. Mwangi
    2 diciembre, 2011

    Beautiful script man! Really Owesome!

  6. crusader_yn
    3 mayo, 2012

    This plugin is Great! But I strongly recommend to made this plugin work with 3dMax 9 pls 2 version, Thank u
    so much!!!

  7. Masterbrock
    18 mayo, 2012

    Muchas gracias por el script funciona muy bien.

  8. Ernestorumo
    30 junio, 2012

    Una herramienta genial!.. que los de Autodesk tuvieron que haber implementado hace tiempo. Se les tenia que caer la cara de vergüenza!

    Muy buena, vuelvo a recalcar, gracias!