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FHierarchicalLODUtilities

[FHierarchicalLODUtilities](API\Developer\HierarchicalLODUtilities\FHierarchicalLODUtilities) implementation

API > API/Developer > API/Developer/HierarchicalLODUtilities

FHierarchicalLODUtilities implementation

   
Name FHierarchicalLODUtilities
Type class
Header File /Engine/Source/Developer/HierarchicalLODUtilities/Public/HierarchicalLODUtilities.h
Include Path #include "HierarchicalLODUtilities.h"

Syntax

class FHierarchicalLODUtilities : public IHierarchicalLODUtilities

Implements Interfaces

Destructors

Name Remarks Include Path Unreal Specifiers

~FHierarchicalLODUtilities()

   HierarchicalLODUtilities.h  

Functions

Public

Overridden from IHierarchicalLODUtilities

Name Remarks Include Path Unreal Specifiers

virtual const bool AddActorToCluster ( AActor* InActor,
ALODActor* InParentActor
)

 Adds an actor to the given cluster HierarchicalLODUtilities.h  

virtual const bool AreActorsClustered ( const TArray< AActor* >& InActors
)

 Checks if all actors are part of a cluster HierarchicalLODUtilities.h  

virtual const bool AreActorsInSameHLODLevel ( const TArray< AActor* >& InActors
)

 Checks if all actors are in the same HLOD level HierarchicalLODUtilities.h  

virtual const bool AreActorsInSamePersistingLevel ( const TArray< AActor* >& InActors
)

 Checks if all actors have the same outer world HierarchicalLODUtilities.h  

virtual const bool AreClustersInSameHLODLevel ( const TArray< ALODActor* >& InLODActors
)

 Checks if all clusters are in the same HLOD level HierarchicalLODUtilities.h  

virtual bool BuildStaticMeshForLODActor ( ALODActor* LODActor,
UHLODProxy* Proxy,
const FHierarchicalSimplification& LODSetup,
UMaterialInterface* InBaseMaterial
)

 Builds a virtual mesh object for the given LODACtor HierarchicalLODUtilities.h  

virtual float CalculateDrawDistanceFromScreenSize ( const float SphereRadius,
const float ScreenSize,
const FMatrix& ProjectionMatrix
)

   HierarchicalLODUtilities.h  

virtual float CalculateScreenSizeFromDrawDistance ( const float SphereRadius,
const FMatrix& ProjectionMatrix,
const float Distance
)

 Computes the Screensize of the given Sphere taking into account the ProjectionMatrix and distance HierarchicalLODUtilities.h  

virtual void CleanStandaloneAssetsInPackage ( UPackage* InPackage
)

 Cleans any standalone flags for meshes, textures and materials. HierarchicalLODUtilities.h  

virtual int32 ComputeStaticMeshLODLevel ( const TArray< FStaticMeshSourceModel >& SourceModels,
const FStaticMeshRenderData* RenderData,
const float ScreenSize
)

 Computes which LOD level of a Mesh corresponds to the given Distance (calculates closest ScreenSize with distance) HierarchicalLODUtilities.h  

virtual ALODActor * CreateNewClusterActor ( UWorld* InWorld,
const int32 InLODLevel,
AWorldSettings* WorldSettings
)

 Creates a new cluster actor in the given InWorld with InLODLevel as HLODLevel HierarchicalLODUtilities.h  

virtual ALODActor * CreateNewClusterFromActors ( UWorld* InWorld,
AWorldSettings* WorldSettings,
const TArray< AActor* >& InActors,
const int32 InLODLevel
)

 Creates a new cluster in InWorld with InActors as sub actors HierarchicalLODUtilities.h  

virtual UPackage * CreateOrRetrieveLevelHLODPackage ( const ULevel* InLevel,
const uint32 HLODLevelIndex
)

 Creates or retrieves the HLOD package that is created for the given level HierarchicalLODUtilities.h  

virtual UHLODProxy * CreateOrRetrieveLevelHLODProxy ( const ULevel* InLevel,
const uint32 HLODLevelIndex
)

 Creates or retrieves the HLOD proxy that is created for the given level HierarchicalLODUtilities.h  

virtual AHierarchicalLODVolume * CreateVolumeForLODActor ( ALODActor* InLODActor,
UWorld* InWorld
)

 Creates a HierarchicalLODVolume using the bounds of a given LODActor HierarchicalLODUtilities.h  

virtual void DeleteLODActorsInHLODLevel ( UWorld* InWorld,
const int32 HLODLevelIndex
)

 Deletes all the ALODActors with the given HLODLevelIndex inside off InWorld HierarchicalLODUtilities.h  

virtual void DestroyCluster ( ALODActor* InActor
)

 Deletes the given cluster's data and instance in the world HierarchicalLODUtilities.h  

virtual void DestroyLODActor ( ALODActor* InActor
)

 Destroys an LODActor instance HierarchicalLODUtilities.h  

virtual void ExcludeActorFromClusterGeneration ( AActor* InActor
)

 Excludes an actor from the cluster generation process HierarchicalLODUtilities.h  

virtual void ExtractStaticMeshActorsFromLODActor ( ALODActor* LODActor,
TArray< AActor* >& InOutActors
)

 Extracts all the virtual Mesh Actors from the given LODActor's SubActors array HierarchicalLODUtilities.h  

virtual void ExtractSubActorsFromLODActor ( AActor* Actor,
TArray< AActor* >& InOutActors
)

 Recursively retrieves Actors from a LODActor and its child LODActors HierarchicalLODUtilities.h  

virtual FString GetLevelHLODProxyName ( const FString& InLevelPackageName,
const uint32 HLODLevelIndex
)

 Get the name of a HLOD proxy given the name of a level's package HierarchicalLODUtilities.h  

virtual int32 GetLODLevelForScreenSize ( const UStaticMeshComponent* StaticMeshComponent,
const float ScreenSize
)

 Computes the LODLevel for a StaticMeshComponent taking into account the ScreenSize HierarchicalLODUtilities.h  

virtual ALODActor * GetParentLODActor ( const AActor* InActor
)

 Returns the ALODActor parent for the given InActor, nullptr if none available HierarchicalLODUtilities.h  

virtual FString GetWildcardOfHLODPackagesForPackage ( const FString& PackageName
)

 Retrieves a wildcard that includes all possible HLOD packagenames that could be used by the given package. HierarchicalLODUtilities.h  

virtual void HandleActorModified ( AActor* InActor
)

 Handles changes in actors for the current world, checks if InActor is part of a HLOD cluster and if so set its dirty-flag HierarchicalLODUtilities.h  

virtual const bool IsActorClustered ( const AActor* InActor
)

 Checks if an actor is clustered HierarchicalLODUtilities.h  

virtual bool IsWorldUsedForStreaming ( const UWorld* InWorld
)

 Checks whether or not the given InWorld is used as a streaming level by any other World in the level HierarchicalLODUtilities.h  

virtual const bool MergeClusters ( ALODActor* TargetCluster,
ALODActor* SourceCluster
)

 Merges two clusters together HierarchicalLODUtilities.h  

virtual const bool RemoveActorFromCluster ( AActor* InActor
)

 Removes the given actor from it's parent cluster HierarchicalLODUtilities.h  

virtual UPackage * RetrieveLevelHLODPackage ( const ULevel* InLevel,
const uint32 HLODLevelIndex
)

 Retrieves the HLOD package that is created for the given level HierarchicalLODUtilities.h  

virtual UHLODProxy * RetrieveLevelHLODProxy ( const ULevel* InLevel,
const uint32 HLODLevelIndex
)

 Retrieves the HLOD proxy that is created for the given level HierarchicalLODUtilities.h  

virtual EClusterGenerationError ShouldGenerateCluster ( AActor* Actor,
const int32 HLODLevelIndex
)

 Returns whether or not the given actor is eligible for creating a HLOD cluster creation HierarchicalLODUtilities.h  

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