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  3. FSceneViewStateInterface

FSceneViewStateInterface

The scene manager's persistent view state.

API > API/Runtime > API/Runtime/Engine

The scene manager's persistent view state.

   
Name FSceneViewStateInterface
Type class
Header File /Engine/Source/Runtime/Engine/Public/SceneManagement.h
Include Path #include "SceneManagement.h"

Syntax

class FSceneViewStateInterface

Constructors

Name Remarks Include Path Unreal Specifiers

FSceneViewStateInterface()

   SceneManagement.h  

Destructors

Name Remarks Include Path Unreal Specifiers

virtual ~FSceneViewStateInterface()

 Don't allow direct deletion of the view state, Destroy should be called instead. SceneManagement.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

void ActivateFrozenViewMatrices ( FSceneView& SceneView
)

 If frozen view matrices are available, set those as active on the SceneView SceneManagement.h  

virtual void AddLumenSceneData ( FSceneInterface* InScene,
float SurfaceCacheResolution
)

 Similar to above, but adds Lumen Scene Data SceneManagement.h  

void AddReferencedObjects ( FReferenceCollector& Collector
)

   SceneManagement.h  

void ClearMIDPool ( FStringView MidParentRootPath
)

 Clears the pool of mids being referenced by this view state SceneManagement.h  

void Destroy()

 Called in the game thread to destroy the view state. SceneManagement.h  

FSceneViewState * GetConcreteViewState()

   SceneManagement.h  

FRDGPooledBuffer * GetCurrentEyeAdaptationBuffer()

 Returns the eye adaptation buffer. SceneManagement.h  

IPooledRenderTarget * GetCurrentEyeAdaptationTexture()

   SceneManagement.h  

uint32 GetCurrentTemporalAASampleIndex()

   SceneManagement.h  

uint32 GetDistanceFieldTemporalSampleIndex()

 Returns the distance field temporal sample index SceneManagement.h  

const FViewMatrices * GetFrozenViewMatrices()

 If frozen view matrices are available, return a pointer to them SceneManagement.h  

float GetLastEyeAdaptationExposure()

 Returns the eye adaptation exposure. SceneManagement.h  

uint32 GetOcclusionFrameCounter()

 Returns the occlusion frame counter SceneManagement.h  

float GetPreExposure ()

 Returns the current PreExposure value. SceneManagement.h  

UMaterialInstanceDynamic * GetReusableMID ( UMaterialInterface* InSource
)

 Allows MIDs being created and released during view rendering without the overhead of creating and releasing objects As MID are not allowed to be parent of MID this gets fixed up by parenting it to the next Material or MIC SceneManagement.h  

ESequencerState GetSequencerState()

   SceneManagement.h  

virtual SIZE_T GetSizeBytes()

   SceneManagement.h  
  SceneManagement.h  
Returns the temporal LOD struct from the viewstate SceneManagement.h  

float GetTemporalLODTransition()

 Returns the blend factor between the last two LOD samples SceneManagement.h  

uint32 GetViewKey()

 Returns a unique key for the view state, non-zero SceneManagement.h  
  SceneManagement.h  
  SceneManagement.h  

FRDGTextureRef GetVolumetricCloudTexture ( FRDGBuilder& GraphBuilder
)

 Return the active volumetric cloud texture, can be null. SceneManagement.h  

FVector2f GetVolumetricCloudTextureUVMax()

   SceneManagement.h  

FVector2f GetVolumetricCloudTextureUVScale()

   SceneManagement.h  

bool HasLumenSceneData()

   SceneManagement.h  

bool HasValidEyeAdaptationBuffer()

 Tells if the eye adaptation buffer exists without attempting to allocate it. SceneManagement.h  

bool HasValidEyeAdaptationTexture()

   SceneManagement.h  

bool HasViewParent()

   SceneManagement.h  

bool IsViewParent()

   SceneManagement.h  

void OnStartPostProcessing ( FSceneView& CurrentView
)

 Resets pool for GetReusableMID() SceneManagement.h  

virtual void RemoveLumenSceneData ( FSceneInterface* InScene
)

   SceneManagement.h  

void ResetViewState()

 Rest some state (e.g. FrameIndexMod8, TemporalAASampleIndex) to make the rendering [more] deterministic SceneManagement.h  

void RestoreUnfrozenViewMatrices ( FSceneView& SceneView
)

 If frozen view matrices were set, restore the previous view matrices SceneManagement.h  

void SetSequencerState ( ESequencerState InSequencerState
)

   SceneManagement.h  

void SetViewParent ( FSceneViewStateInterface*
)

   SceneManagement.h  

void SystemMemoryMirrorBackup ( FSceneViewStateSystemMemoryMirror* SystemMemoryMirror
)

   SceneManagement.h  

void SystemMemoryMirrorRestore ( FSceneViewStateSystemMemoryMirror* SystemMemoryMirror
)

   SceneManagement.h  

Protected

Static

Name Remarks Include Path Unreal Specifiers

static TPimplPtr< FSceneViewStateSystemMemoryMirror > SystemMemoryMirrorAllocate ()

 Scene view state mirroring to system memory, useful for offline high resolution tiled rendering (such as via Movie Render Queue). SceneManagement.h  

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