_Cutoff("Alpha Cutoff", Range(0.0, 1.0)) = 0.5 _Glossiness("Smoothness", Range(0.0, 1.0)) = 0.5 _GlossMapScale("Smoothness Scale", Range(0.0, 1.0)) = 1.0 [Enum ...
Installation: Add it to your unity assets (drag and drop in the package, or go to "Assets/Import Package/Custom Package" at the top and from there you can find it in your shaders drop down list ...