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> Unreal Engine API Reference > Runtime > Engine > FStreamingManagerCollection

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FStreamingManagerCollection

Streaming manager collection, routing function calls to streaming managers that have been added via AddStreamingManager.

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Inheritance Hierarchy

IStreamingManager

FStreamingManagerCollection

References

Module	Engine
Header	/Engine/Source/Runtime/Engine/Public/ContentStreaming.h
Include	#include "ContentStreaming.h"

Syntax

struct FStreamingManagerCollection : public IStreamingManager

Remarks

Streaming manager collection, routing function calls to streaming managers that have been added via AddStreamingManager.

Variables

	Name	Description
IAnimationStrea...	AnimationStreamingManager	The animation streaming manager, should always exist
IAudioStreaming...	AudioStreamingManager	The audio streaming manager, should always exist
FCriticalSectio...	AudioStreamingManagerCriticalSection	Locks out any audio streaming manager call when we are re-initializing the audio streaming manager.
int32	DisableResourceStreamingCount	Count of how many nested DisableResourceStreaming's were called - will enable when this is 0
float	LoadMapTimeLimit	Maximum number of seconds to block in StreamAllResources(), by default (.ini setting).
int32	NumIterations	Number of iterations to perform. Gets reset to 1 each frame.
TArray< IStream...	StreamingManagers	Array of streaming managers to route function calls to
FRenderAssetStr...	TextureStreamingManager	The currently added texture streaming manager. Can be NULL
FVirtualTexture...	VirtualTextureStreamingManager	The virtual texture streaming manager, should always exist

Constructors

	Name	Description
	FStreamingManagerCollection()	Default constructor, initializing all member variables.

Destructors

	Name	Description
	~FStreamingManagerCollection()

Functions

	Name	Description
void	AddOrRemoveTextureStreamingManagerIfNeeded ( bool bIsInit )
void	AddStreamingManager ( IStreamingManager* StreamingMa... )	Adds a streaming manager to the array of managers to route function calls to.
void	DisableResourceStreaming()	Disables resource streaming.
void	EnableResourceStreaming()	Enables resource streaming, previously disabled with enableResourceStreaming.
IAnimationSt...	GetAnimationStreamingManager()	Gets a reference to the Animation Streaming Manager interface
IAudioStream...	GetAudioStreamingManager()	Gets a reference to the Audio Streaming Manager interface
IRenderAsset...	GetRenderAssetStreamingManager()	Get the streaming manager for textures and meshes
IRenderAsset...	GetTextureStreamingManager()	Gets a reference to the Texture Streaming Manager interface
FVirtualText...	GetVirtualTextureStreamingManager()	Gets a reference to the Virtual Texture Streaming Manager
bool	IsMeshStreamingEnabled()	Checks whether mesh streaming is enabled
bool	IsRenderAssetStreamingEnabled()	Checks whether texture/mesh streaming is enabled
bool	IsStreamingEnabled()	Checks whether any kind of streaming is active
bool	IsTextureStreamingEnabled()	Checks whether texture streaming is enabled
void	RemoveStreamingManager ( IStreamingManager* StreamingMa... )	Removes a streaming manager from the array of managers to route function calls to.
void	SetNumIterationsForNextFrame ( int32 NumIterations )	Sets the number of iterations to use for the next time UpdateResourceStreaming is being called.

Overridden from IStreamingManager

	Name	Description
void	AddLevel ( ULevel* Level )	Adds a ULevel to the streaming manager.
int32	BlockTillAllRequestsFinished ( float TimeLimit, bool bLogResults )	Blocks till all pending requests are fulfilled.
void	CancelForcedResources()	Cancels the timed Forced resources (i.e used the Kismet action "Stream In Textures").
bool	Exec ( UWorld* InWorld, const TCHAR* Cmd, FOutputDevice& Ar )	Allows the streaming manager to process exec commands.
int32	GetNumWantingResources()	Returns the number of resources that currently wants to be streamed in.
int32	GetNumWantingResourcesID()	Returns the current ID for GetNumWantingResources().
void	NotifyActorDestroyed ( AActor* Actor )	Called when a spawned actor is destroyed.
void	NotifyLevelChange()	Notifies manager of "level" change. Notifies managers of "level" change.
void	NotifyLevelOffset ( ULevel* Level, const FVector& Offset )	Notifies manager that level primitives were shifted.
void	NotifyPrimitiveDetached ( const UPrimitiveComponent* Pri... )	Called when a primitive is detached from an actor or another component.
void	NotifyPrimitiveUpdated ( const UPrimitiveComponent* Pri... )	Called when a primitive streaming data needs to be updated.
void	NotifyPrimitiveUpdated_Concurrent ( const UPrimitiveComponent* Pri... )	Called when a primitive streaming data needs to be updated in the last stage of the frame.
void	OnAudioStreamingParamsChanged()
void	PropagateLightingScenarioChange()	Propagates a change to the active lighting scenario.
void	RemoveLevel ( ULevel* Level )	Removes a ULevel from the streaming manager.
void	SetDisregardWorldResourcesForFrames ( int32 NumFrames )	Don't stream world resources for the next NumFrames.
int32	StreamAllResources ( float TimeLimit )	Streams in/out all resources that wants to and blocks until it's done.
void	Tick ( float DeltaTime, bool bProcessEverything )	Calls UpdateResourceStreaming(), and does per-frame cleaning.
void	UpdateResourceStreaming ( float DeltaTime, bool bProcessEverything )	Updates streaming, taking into account all current view infos.

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