On the topic - Oblivion/NWN/Baldur's Gate load in the interior of houses as different levels. Gothic doesn't. Both methods have advantages and disadvantages - which do you prefer ?
A very important matter, thanks for mentioning it!!!
I think it is one of the most annoying things in games if there has to be loading when you enter a building. The loading isn't the problem actually, but the fact that the immersion is highly disturbed by that - imagine you enter a house in real life and have you wait a few seconds before doing so. <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" /> And finally if you are in there and look out of the window, you don't see the normal word but just some static picture - or worse, nothing at all! <img src="/ubbthreads/images/graemlins/down.gif" alt="" />
No, no, no! The best way would be seemless entering of any building - including caves or dungeons or whatever - and those have to be real parts of the world. So, if you open a window and look out of it, you have to see the person you were talking to just a minute before entering the room. You have to see and hear the outer world... feel the weather... and of course face the danger if you are in such a situation. Let's say you are in fight with Orcs and decide to run away. You run and run until you reach a town. The guards try to fight off the Orcs while you keep running. Finally, you think you are not seen by your enemies and jump into an old building. You close the door and hide in there... looking out of the window every now and then. There you can see how and hear how the Orcs manage to beat the guards... and then start looking for you. Maybe even storming a house or two. And if you are not a very lucky person, they enter your building and the fight continues...
I think it is highly recommended not to load buildings as different levels. <img src="/ubbthreads/images/graemlins/exclamation.gif" alt="" />