Formats: 3d Max 2015 / OBJ / Corona / Vray Next
For the OBJ format, materials are separately saved in the Materials folder under Vray and Corona.

Change any color in a couple of clicks, you can assign your own colors.

Model, materials and layers have their logical names.
Additional plugins were not used.
For the Vray version lower than the Next version, in the materials, in the BRDF section the value Microfacet GTR (GGX) is set.
If you use a version of Vray below 3.0, set the value manually to Blinn, Phong or Ward, otherwise this field will remain empty, which will negatively affect the appearance of the material.