Quote - I had the checkbox for .mtl checked, but half of the items came in grey.  Is there something else I need to do?  Can I loat the .mtl file some other way?

The mtl file is loaded automatically. The whole idea for this challenge is that you define the materials. The obj file has little about it. Basically you just have the material "slots" and you can ser them to be anything you like. it's an exercise in materials, lighting ans framing.

Cheers 

Paolo

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