however, can i do something with that "issue" when i enter a city during daytime the windows are always lit for a half second and then change unlit. i can absolutely live with it, but if there is something i can do to eliminate this... or maybe my CPU is too slow (c2d e4500@2200Mhz).
The default state of the meshes is to have the windows lit, when you enter a city for the very first time, all the meshes are lit by default then the script anolyze the time and set them to what they should be (unlit by day) and the game will then keep them on this state. If you leave town by night with all the windows lit, I guess that when you will enter it again by day the windows will appear lit for some seconds before the script takes over.
So the answer is no. There is no way to change that. It is just that the game load the meshes before the script can act. Nothing I can do about that.
How does one go about adding the smoke emitters to a building mesh that does not have them? It appears you can't always just copy/paste the controller sequences for it from a similar building. The illumination tool does not handle smoke emitters.
I added the smoke emitter by hand on each and every house with a chimney. There is nothing to make that automatic. Copy paste works to an extent but you always have to fine tune the smoke emitter to the correct location of the chimney.