Missing MTL Files

[silvertakana]

Where are the .mtl files for the three models? I can't load the model displaying the correct texture.

[emackey]

I probably shouldn't still have this old project online anymore, since my workflow has completely converted over to glTF 2.0 since then.

For what it's worth, one of the test models here, Normal-Tangent Test, did get converted to glTF and became an official glTF sample model here:

https://github.com/KhronosGroup/glTF-Sample-Models/tree/master/2.0/NormalTangentTest

The other two feature geometry sources from elsewhere (Chest from Modo, Fire Hydrant from Substance Painter), so I never did publish glTF samples for those. The old OBJ versions do not have .mtl files because the PBR material is built manually in ThreeJS code; OBJ/MTL cannot store PBR the way glTF can.