The frosted glass shader is provided in two fundamental implementations, each with their benefits and drawbacks (they can be combined):
Surface Material
Supports per surface diffuse color (for effects like stained glass)
Supports per surface reflection color
Does not support rendering translucency behind the frosted surface
Supports mobile rendering (lower quality)
Post Process Material
Supports per post process volume diffuse color
Supports per surface reflection color
Supports rendering translucency behind the frosted surface
Supports mobile rendering (full quality)
The best thing to do is look at the included showcase level to see how the different versions are used and how they can be used in combination to enable more complex effects like multiple layers of frosted glass. Most examples also have a note placed next to them in the level, that provides further information on that specific example.
