Cycles Render: Export problem to obj

Hello everyone!
I have stuck with a problem of exporting blend scene to obj file.

I have made a scene with a glass in cycles render, and when i try to convert to obj, what I observe is that in .mtl file there is no information about my actual material Glass BSDF.
mtl file is just describing gray surface material, that is what I see in Solid viewport.

Could anyone know how to fix this?

Could anyone know how to fix this?
What you get is correct. These blender specific material settings are not held in the obj or mtl files. You’ll have to recreate them in whatever application you are using the obj files. They will hold the diffuse colour and links to texture/normal maps.

Thanks!
That what I thought. Too bad I cannot import this specific information.