Need help with the new facebook GLB format

[monopoly_guy]

Hello there. I desperately need help with the new facebook GLB format. I have a roughness texture that doesn't seem to affect the model at all. I am using marmoset and sketchfab so the conversion process is automatic. If any of you guys know any good tutorial on FBX2gLTF.exe converter that is going around I would also appreciate it.

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