Mental Ray Renderer 3Ds Max. In general, if the mental ray renderer does not recognize a map or material, it renders it. The basics of interior rendering with mental ray.
Go to the assign renderer tab, and change to mental ray. There is currently no way to obtain the mental ray renderer for 3ds max 2018 or higher, or maya 2018 or higher. For the most part, the mental ray renderer treats 3ds max maps and materials the same way the default scanline renderer does.