The glossy transparent material is a generalisation of the specular material, to allow non-perfect (i.e. rough) reflection and refraction, via an exponent parameter as with the Phong material.
It is commonly used for materials such frosted glass or even human skin (with a low exponent value).
Attributes:
Exponent
Internal Medium
Absorption Layer Transmittance
Bump
Displacement
Base Emission
Emission
Layer