Door

Grouping node for making appear/disappear element(s) from the scene when the camera is close to it.

By choosing "Door" it is possible to simulate the door opening for the camera to pass through:

select the elements that make up the fixtures (frame, panel, glass, handle etc.)
open the "Grouping" pull down menu and click on "Door" to open the dialogue window showed below.

Properties

Name	Type	Description
Enabled	CheckBox	Enables/prevents door'sensor.
Show Sensor Zone	CheckBox	Shows/hides the sensor in the scene (blue parallelepiped).
Sensor Size	3 RulerControls	Set 3D dimensions of sensor by X, Y and Z axes.
Sensor Center	3 RulerControls	Set 3D position of sensor center by X, Y and Z coordinates.
Show In Zone	CheckBox	Shows/hides elements inside/outside sensor's volume.

Remarks

When the camera is inside the volume that represents the sensor, the elements that make up the selected fixtures will disappear from the scene, and subsequently reappear when the camera exits the sensor (the contrary if the CheckBox "Show In Zone" is enabled).

This command can be used to deactivate (disappear from the scene) any element or group of elements according to the position of the camera. The sensor does not necessarily have to be positioned in correspondence to the object that must disappear. For example it is possible to deactivate the elements outside a room, when the camera is inside the room. Or it is possible to deactivate the elements that make up the roof when the camera rises above a certain height.