How to export .obj file with .mtl File in ARKit？

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xiaoxiao2022 OP

Created May ’22

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I can export .obj file with MDLAsset, but it without .mtl file. How can I export the .mtl file at the same time?

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Answer 1

OP

Apple

May ’22

Locally when I export a MDLAsset as .obj, the .mtl file was placed in the same output directory. As well, when I opened the .obj I could see mtllib test.mtl that pointed to the emitted material filename.

Does the asset you export actually have materials? You can iterate all your sub-meshes and print out the MDLMaterial to verify. Does the emitted obj file contain references to the material usemtl? Does the file contain a reference to the material file via mtllib?

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