Version: 5.4 beta (switch to 5.3)
Occlusion Area
Skybox

Occlusion Portals

Switch to Scripting

In order to create occlusion primitives which are openable and closable at runtime, Unity uses Occlusion Portals.

Property: Function:
Open Indicates if the portal is open (scriptable).
Center Sets the center of the Occlusion Area. By default this is 0,0,0 and is located in the center of the box.
Size Defines the size of the Occlusion Area.
Occlusion Area
Skybox