Less than a month ago the developers from TFDi Design revealed TrueGlass. TrueGlass is their technology for making your windscreen look more realistic by being making weather affect it. Such weather can be rain, fog and ice.
As of today, TrueGlass is available for TFDi’s own Boeing 717. It works in both Prepar3d v4.0 and v4.1.
TrueGlass is free for TFDi’s own Boeing 717, and, according to their website, will be free for freeware planes (developers). For commercial use, TrueGlass will cost $2100. This does not mean you’ll suddenly have to pay an exorbitant amount of money: this is the price that TFDi asks from other developers to make use and integrate TrueGlass.