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> Unreal Engine API Reference > Plugins > DisplayCluster > UDisplayClusterWorldSubsystem

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UDisplayClusterWorldSubsystem

World Subsystem used to react to level and world changes.

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Inheritance Hierarchy

UObjectBase

UObjectBaseUtility

UObject

USubsystem

UWorldSubsystem

UDisplayClusterWorldSubsystem

References

Module	DisplayCluster
Header	/Engine/Plugins/Runtime/nDisplay/Source/DisplayCluster/Public/DisplayClusterWorldSubsystem.h
Include	#include "DisplayClusterWorldSubsystem.h"

Syntax

[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)()
class UDisplayClusterWorldSubsystem : public UWorldSubsystem

Remarks

World Subsystem used to react to level and world changes. When Concert reloads the packages, streamed levels are removed and re-added without invoiking LoadMap which circumvents FDisplayClusterGameManager::StartScene method invoked inside LoadMap method of DisplayClusterGameEngine. This causes issues such as not updating references to DisplayClusterRootActor which causes memory corruption, crashes and graphic corruption. This Subsystem is used to react to changes in number of levels used in the current world and forces DisplayClusterModule to refresh all of its managers.

Functions

		Name	Description
	void	OnLevelsChanged()	Event that is triggered when number of levels is changed.

Overridden from USubsystem

		Name	Description
	void	Deinitialize()	Implement this for deinitialization of instances of the system
	void	Initialize ( FSubsystemCollectionBase& Collecti... )	Implement this for initialization of instances of the system

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