Just for completeness, there are some materials that do actually convert the frequency of light. They're called optical frequency converters. These tend to work only on paired photons, and thus are transparent when you look at them, but when you shine a whole lot of one frequency on them it converts up. That allows you to do some interesting things:
In this case the green is being upconverted from the monochromatic red light.
This isn't "glass" so it's not what you're asking, but one could use it in this fashion to, say convert red photons to green on the front of a solar panel and then capture the green photons at higher energy. In theory this is more efficient than capturing the two original red ones. You could, in theory, make a window that upconverted IR to visible and thus better light the room.