Glass Texture

The reinforced texture works by making a square pattern onto the texture using Generated offset Bands and some parameters while adding them to some multipliers and hooking it up too the base color and tint. 

The tint is a picture of two texture hooked up to a Switch parameter which gives the impression when looking at the window everything in the corners have a slight offset in colors imitating a tinted window.

This just helps apply the reinforcement. 

This helps blend the noise from the refraction to give it a static looking vibe to it which gives the impression of frosted glass.