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)