Take that city and every polygon in there and render the textures to it. Thats a lot of textures. That would be called texture baking. You would get a static time of day but in exchange for it you would get a sim to look like this animated video. The benefit would be in virtually eliminating the lighting calculations on the city and landscape. Which I think are crap in every flight sim. The fugliest part of any sim is the landscape and the lighting. Maybe there are a few FSX sceneries that are nice but they require mega machines. Will flight sims take a hint from FPS games and bake the textures? No it won't happen. I'm just pointing out how it could look.
