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> Unreal Engine API Reference > Plugins > Niagara > UNiagaraSignificanceHandler

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UNiagaraSignificanceHandler

Base class for significance handlers.

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Inheritance Hierarchy

UObjectBase

UObjectBaseUtility

UObject

UNiagaraSignificanceHandler

	UNiagaraSignificanceHandlerAge
	UNiagaraSignificanceHandlerDistance

References

Module	Niagara
Header	/Engine/Plugins/FX/Niagara/Source/Niagara/Classes/NiagaraEffectType.h
Include	#include "NiagaraEffectType.h"

Syntax

[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)(Abstract, EditInlineNew)
class UNiagaraSignificanceHandler : public UObject

Remarks

Base class for significance handlers. These allow Niagara's scalability system to determine the relative significance of different FX in the scene. Some basic ones are provided but projects are free to implement their own more complex determinations of significance. For example, FX attached to the player character could be given higher priority.

Functions

		Name	Description
	void	CalculateSignificance ( TArray< UNiagaraComponent* >&..., TArray< FNiagaraScalabilityState > ..., TArray< int32 >& OutIndices )

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