Thickness map

Minimum Inspector Level	Normal
Available since	2.0

This parameter defines the thickness of the surface.

This parameter has also differences based on the inspector mode you selected.

Normal level

On this level you will have the texture slot available to fill in with your thickness map texture

The thickness map is not actually used by the shader directly, but it's used to generate it's own MSOT map by sampling the red channel of the thickness map.

Expert level

On this level ou won't have this parameter at all. This is due to the fact that the thickness map is sampled from the MSOT map and on expert level i assume people can handle making that texture by their own for more flexibility.