[tus89]

> In a network game, if player 1 opens a door, you want player 2 to see the door opening IFF they are within the "network relevancy" radius of the door.

This is all kind of wrong. You want players to see the door opening IFF they can see the door at all. If incompetent developers can't achieve that and come up with some other solution and a lame excuse to go with it, that does not change the desire from a player perspective.

[crescentfresh]

> IFF they can see the door at all

That is typically one of the conditions encompassed by "network relevancy".

[Hikikomori]

Depends on how important such events are in the game. Lazy, or just being smart with your limited resources as culling like this isn't cheap.

[Waterluvian]

What about hearing the door? What about any effects the door interaction might have?

I think narrowing it to “seeing” the door might produce a limited result that closes a lot of doors on proper multiplayer handling of other game mechanics.