CullInstance

Inherits: Spatial < Node < Object

Inherited By: VisibilityNotifier, VisualInstance

Parent of all nodes that can be culled by the Portal system.

Descripción

Provides common functionality to nodes that can be culled by the Portal system.

Static and Dynamic objects are the most efficiently managed objects in the system, but there are some caveats. They are expected to be present initially when Rooms are converted using the RoomManager rooms_convert function, and their lifetime should be the same as the game level (i.e. present until you call rooms_clear on the RoomManager. Although you shouldn't create / delete these objects during gameplay, you can manage their visibility with the standard hide and show commands.

Roaming objects on the other hand, require extra processing to keep track of which Room they are within. This enables them to be culled effectively, wherever they are.

Global objects are not culled by the portal system, and use view frustum culling only.

Objects that are not Static or Dynamic can be freely created and deleted during the lifetime of the game level.

Enumeraciones

enum PortalMode:

  • PORTAL_MODE_STATIC = 0 --- Use for instances within Rooms that will not move - e.g. walls, floors.

Note: If you attempt to delete a PORTAL_MODE_STATIC instance while the room graph is loaded (converted), it will unload the room graph and deactivate portal culling. This is because the room graph data has been invalidated. You will need to reconvert the rooms using the RoomManager to activate the system again.

  • PORTAL_MODE_DYNAMIC = 1 --- Use for instances within rooms that will move but not change room - e.g. moving platforms.

Note: If you attempt to delete a PORTAL_MODE_DYNAMIC instance while the room graph is loaded (converted), it will unload the room graph and deactivate portal culling. This is because the room graph data has been invalidated. You will need to reconvert the rooms using the RoomManager to activate the system again.

  • PORTAL_MODE_ROAMING = 2 --- Use for instances that will move between Rooms - e.g. players.

  • PORTAL_MODE_GLOBAL = 3 --- Use for instances that will be frustum culled only - e.g. first person weapon, debug.

  • PORTAL_MODE_IGNORE = 4 --- Use for instances that will not be shown at all - e.g. manual room bounds (specified by prefix 'Bound_').

Descripciones de Propiedades

  • int autoplace_priority

Default

0

Setter

set_portal_autoplace_priority(value)

Getter

get_portal_autoplace_priority()

When set to 0, CullInstances will be autoplaced in the Room with the highest priority.

When set to a value other than 0, the system will attempt to autoplace in a Room with the autoplace_priority, if it is present.

This can be used to control autoplacement of building exteriors in an outer RoomGroup.


  • bool include_in_bound

Default

true

Setter

set_include_in_bound(value)

Getter

get_include_in_bound()

When a manual bound has not been explicitly specified for a Room, the convex hull bound will be estimated from the geometry of the objects within the room. This setting determines whether the geometry of an object is included in this estimate of the room bound.

Note: This setting is only relevant when the object is set to PORTAL_MODE_STATIC or PORTAL_MODE_DYNAMIC, and for Portals.


Default

0

Setter

set_portal_mode(value)

Getter

get_portal_mode()

When using Rooms and Portals, this specifies how the CullInstance is processed in the system.