alec's models

[Shadowth117]

Most games use a various tricks like that for large areas so that they everything can be onscreen without lag. I know with Halo games that they usually render most of the map at once, but use lots of invisible barriers to determine when objects go into lower levels of detail.

Anyways, for the sky I can't remember exactly how it worked, but unless the model really changes you may only want to rip the sky once and just include the night, dusk, and morning textures or whatever. Been a while since I played the game so I don't remember exactly how the sky worked in it.