yes it will.
something like portal rendering
Create a hidden box inside the doorway and
a hiddenbox outside of the doorway.
if you enter box outside then show all meshes in Zone1 hide zone 2
if you enter the box inside then show all meshes in Zone 2 hide zone 1
if you are in zone 1 and enter the box for zone 1 then do nothing
something like portal rendering
Create a hidden box inside the doorway and
a hiddenbox outside of the doorway.
if you enter box outside then show all meshes in Zone1 hide zone 2
if you enter the box inside then show all meshes in Zone 2 hide zone 1
if you are in zone 1 and enter the box for zone 1 then do nothing