Instanced Interiors vs Open Interiors

I am designing a game and am wondering the feasibility of having all 15 or so 2-4 story static mesh buildings (built from combining and converting hundreds of bsp) in my small city map being enterable without loading with high resolution textures from quixel bridge. Will it make the game lag too much having the interiors be enterable and make game logic more difficult to program than otherwise having an instanced interior like fallout or elder scrolls do? I cant think of any single player games that allow all buildings to be enterable though without loading.

Hi Hidalan,

It depends on how many you’re wanting in the level - most of the time they’ll be out of sight. A big part of it is actually creating that many rooms.

I’ve got a tool on the marketplace that helps with that - it can add randomization so you can re-use the same room, with it looking quite different.

You can also have just 1 room (or a selection), and move it around the level like so:

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