mtl
What is a .mtl file?
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An MTL file (.mtl, Material Template Library) is the companion to a Wavefront OBJ: a plain-text list of named materials with colours, specular/opacity values, and texture-map references. The OBJ links to it via an mtllib line.
How to use a .mtl file
Use an example .mtl file to test OBJ material parsing, texture-map resolution, and OBJ+MTL import pipelines.
Download example .mtl files
- MTL — Mini Textured MaterialMTL material SAMPLE pairing with the textured OBJ.
- MTL — PBR Material (Pr / Pm alongside Phong)The material library for the OBJ in this group, carrying both the original Phong fields and the de-facto PBR extensions (Pr roughness, Pm metallic, Ke emissive). The file that tells you whether an importer reads MTL's PBR additions or only its 1995 subset.