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MTL MB
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Convert MTL to MB

Can you convert MTL to MB?
Verified by Adam B.· reviewed by FE Editorial ·updated Aug 29, 2026
QUICK ANSWER
Is it possible to convert MTL to MB?
No - not a direct conversion.

Keep the .obj, .mtl, and texture images together in one folder, import the .obj into Autodesk Maya (which reads the .mtl automatically), then save the scene as .mb via File > Save Scene with format set to Maya Binary. This converts the OBJ+MTL pair as a unit, not the .mtl in isolation.

No direct path
Also to MB: MA · MP

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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Why convert MTL to MB?

A Wavefront OBJ model is split across two files: the OBJ holds vertex and face data, and the MTL holds material descriptions. A Maya Binary (.mb) scene needs geometry to attach materials to - feeding it only material definitions produces nothing useful. MTL also uses a Phong model that does not map cleanly onto Maya's material system.

How to convert MTL to MB

Autodesk Maya APP

Place the .obj, .mtl, and texture images in one folder, import the .obj via File > Import (Maya reads the .mtl automatically), then save via File > Save Scene with format set to Maya Binary (.mb).

Programs that convert MTL

Autodesk Maya

About these formats

.MTL Material Template Library (Wavefront)

An MTL file is the material description companion to a Wavefront OBJ 3D model. It stores surface colors, shininess, transparency, and texture file references. You do not open it directly -…

Open .MTL details →
.MB Autodesk Maya Binary Scene

An MB file is an Autodesk Maya Binary scene containing 3D models, materials, rigs, lights, cameras and animation. It opens properly only in Autodesk Maya. No free viewer reads it…

Open .MB details →

Quality & what to watch

  • The .mtl alone has no geometry; you must have the companion .obj file to import anything useful into Maya.
  • MTL uses Phong-style shading (Kd, Ks, Ns) while Maya's modern pipelines use physically-based shaders; basic colors and textures import but specular behavior may need manual adjustment.
  • No converter exists for MTL-only to MB because the conversion has no logical basis - geometry is simply not present in the .mtl.

Frequently asked questions

A website says it converts MTL to MB - does it work?
No - the conversion has no technical basis; a site claiming to do this is either confused about the formats or is not doing what it claims.
I have an OBJ and an MTL - can I get them into Maya as an MB?
Yes - import the .obj in Maya via File > Import (it reads the .mtl automatically), then save the scene as .mb.
Will the MTL materials look the same in Maya?
Broadly similar for colors and textures, but MTL's Phong values (Kd, Ks, Ns) may not translate exactly to Maya's PBR shaders and may need manual adjustment.