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MTL FBX
File conversion

Convert MTL to FBX

Verified by Adam B.· reviewed by FE Editorial ·updated Jun 21, 2026
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Is it possible to convert MTL to FBX?
Yes - MTL converts to FBX.

Place the .obj, .mtl, and all texture images in one folder, import the .obj into Blender via File > Import > Wavefront (.obj), and export via File > Export > FBX (.fbx). Set Path Mode to Copy if you want textures bundled in the FBX. The material appearance may differ slightly due to differences between MTL's Phong model and FBX's PBR shaders.

Also to FBX: USD · X · LWO

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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Why convert MTL to FBX?

FBX is the standard interchange format for game engines such as Unity and Unreal Engine and for professional 3D pipelines. OBJ+MTL supports simple mesh exchange but lacks rigs, animations, and the modern material models those tools expect. Converting to FBX gives the model a single portable file those pipelines can import directly.

How to convert MTL to FBX

Blender OPEN-SOURCE

Import the .obj via File > Import > Wavefront (.obj) - Blender reads the .mtl automatically - then export via File > Export > FBX (.fbx); set Path Mode to Copy to embed textures in the export.

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 →
.FBX Autodesk FBX (Filmbox) 3D Interchange File

An FBX file is a 3D model/scene in Autodesk's Filmbox interchange format, carrying geometry, textures, rigs, animation, cameras and lights. To view one free, use Autodesk FBX Review or…

Open .FBX details →

Quality & what to watch

  • MTL uses Phong shading (Kd, Ks, Ns) while FBX supports PBR materials; Blender maps the values to its Principled BSDF during import, so specular and shininess behavior may differ in the output.
  • Texture images must be in the same folder as the .obj and .mtl; if they are missing, the exported FBX will have no textures.
  • OBJ+MTL is a static format with no animation or rig data; the exported FBX will contain geometry and materials only.

Frequently asked questions

Do I convert just the MTL file?
No - the .mtl has no geometry; you import the companion .obj (which pulls in the .mtl) and export the full model as FBX.
Will the materials look the same in FBX?
Broadly similar for colors and textures, but the Phong-to-PBR approximation means specular behavior and shininess values may differ in rendering.
What if my textures are missing from the folder?
Blender imports the model without textures and the FBX will also have none; add the texture images to the same folder as the .obj and .mtl before importing.