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I have several models in GLTF format and want to export them to OBJ, of course with textures / MTL file. I import the GLTF files using "KSon's GLTF Importer" addon. In Blender, they get displayed correctly, with the textures. When I export them to OBJ, an MTL file gets written, but in the MTL file there are no paths to texture files, just some materials defined. "Write Materials" is checked in OBJ-export settings.

Any ideas? Any help ist appreciated. Note: I am very new to Blender

Disorder
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  • Might be worth trying the official gltf importer in Blender 2.8. – Robert Gützkow Jul 27 '19 at 13:13
  • Tried it, got the same result. Correctly displayed in Blender, exported to obj, mtl gets written but no textures in it. – Disorder Jul 27 '19 at 13:33
  • https://blender.stackexchange.com/questions/57531/fbx-export-why-there-are-no-materials-or-textures – Duarte Farrajota Ramos Jul 27 '19 at 13:35
  • Just to avoid misundestanding the mtl itself doesn't contain any textures, it will just reference them. If you open the file in an editor you should see entries named map_Kd followed by the file name. In order to open/import the obj with textures in another software the .obj, .mtl and all texture need to be in the same directory. – Robert Gützkow Jul 27 '19 at 13:37
  • yes, i know that. the mtl file looks like following:

    `# Blender MTL File: 'untitled.blend'

    Material Count: 2

    newmtl 07___Default Ns 323.999994 Ka 1.000000 1.000000 1.000000 Kd 1.000000 1.000000 1.000000 Ks 0.500000 0.500000 0.500000 Ke 0.0 0.0 0.0 Ni 1.000000 d 1.000000 illum 2

    newmtl lambert2 Ns 323.999994 Ka 1.000000 1.000000 1.000000 Kd 0.800000 0.800000 0.800000 Ks 0.500000 0.500000 0.500000 Ke 0.0 0.0 0.0 Ni 1.000000 d 1.000000 illum 2)`

     – Disorder Jul 27 '19 at 13:41
  • sorry, dont know how to properly format as "code". There is no "map" paramter. The model contains at least one texture (jpg) – Disorder Jul 27 '19 at 13:43
  • Is the texture packed into the gltf or is it an extra file? If it's the former you'll have to save the texture to disk first and assign that one in the material before exporting to obj. – Robert Gützkow Jul 27 '19 at 13:55

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