NavigationRegion3D

Inherits: Node3D < Node < Object

A region of the navigation map.

Description

A region of the navigation map. It tells the NavigationServer3D what can be navigated and what cannot, based on its NavigationMesh resource.

Two regions can be connected to each other if they share a similar edge. You can set the minimum distance between two vertices required to connect two edges by using NavigationServer3D.map_set_edge_connection_margin.

Note: Overlapping two regions' navmeshes is not enough for connecting two regions. They must share a similar edge.

The cost of entering this region from another region can be controlled with the enter_cost value.

Note: This value is not added to the path cost when the start position is already inside this region.

The cost of traveling distances inside this region can be controlled with the travel_cost multiplier.

Properties

bool	enabled	true
float	enter_cost	0.0
int	navigation_layers	1
NavigationMesh	navmesh
float	travel_cost	1.0

Methods

void	bake_navigation_mesh ( bool on_thread=true )
bool	get_navigation_layer_value ( int layer_number ) const
RID	get_region_rid ( ) const
void	set_navigation_layer_value ( int layer_number, bool value )

Signals

• bake_finished ( )

Notifies when the navigation mesh bake operation is completed.

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• navigation_mesh_changed ( )

Notifies when the NavigationMesh has changed.

Property Descriptions

• bool enabled

Default	true
Setter	set_enabled(value)
Getter	is_enabled()

Determines if the NavigationRegion3D is enabled or disabled.

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• float enter_cost

Default	0.0
Setter	set_enter_cost(value)
Getter	get_enter_cost()

When pathfinding enters this region's navmesh from another regions navmesh the enter_cost value is added to the path distance for determining the shortest path.

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• int navigation_layers

Default	1
Setter	set_navigation_layers(value)
Getter	get_navigation_layers()

A bitfield determining all navigation layers the region belongs to. These navigation layers can be checked upon when requesting a path with NavigationServer3D.map_get_path.

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• NavigationMesh navmesh

Setter	set_navigation_mesh(value)
Getter	get_navigation_mesh()

The NavigationMesh resource to use.

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• float travel_cost

Default	1.0
Setter	set_travel_cost(value)
Getter	get_travel_cost()

When pathfinding moves inside this region's navmesh the traveled distances are multiplied with travel_cost for determining the shortest path.

Method Descriptions

• void bake_navigation_mesh ( bool on_thread=true )

Bakes the NavigationMesh. If on_thread is set to true (default), the baking is done on a separate thread. Baking on separate thread is useful because navigation baking is not a cheap operation. When it is completed, it automatically sets the new NavigationMesh. Please note that baking on separate thread may be very slow if geometry is parsed from meshes as async access to each mesh involves heavy synchronization. Also, please note that baking on a separate thread is automatically disabled on operating systems that cannot use threads (such as Web with threads disabled).

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• bool get_navigation_layer_value ( int layer_number ) const

Returns whether or not the specified layer of the navigation_layers bitmask is enabled, given a layer_number between 1 and 32.

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• RID get_region_rid ( ) const

Returns the RID of this region on the NavigationServer3D. Combined with NavigationServer3D.map_get_closest_point_owner can be used to identify the NavigationRegion3D closest to a point on the merged navigation map.

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• void set_navigation_layer_value ( int layer_number, bool value )

Based on value, enables or disables the specified layer in the navigation_layers bitmask, given a layer_number between 1 and 32.