UUsdAssetCache | Unreal Engine 5.7 Documentation

Owns the assets generated and reused by the USD stage, allowing thread-safe retrieval/storage


Name	UUsdAssetCache
Type	class
Header File	/Engine/Plugins/Runtime/USDCore/Source/USDClasses/Public/USDAssetCache.h
Include Path	#include "USDAssetCache.h"

Syntax

UCLASS (Meta=(ScriptName="UsdAssetCache_Deprecated"))  
class UUsdAssetCache : public UObject

Name	Remarks	Include Path	Unreal Specifiers
UUsdAssetCache()		USDAssetCache.h

Name	Type	Remarks	Include Path	Unreal Specifiers
ActiveAssets	TSet< UObject * >	Assets that were added/retrieved since the last call to MarkAssetsAsSlate();.	USDAssetCache.h
bAllowPersistentStorage	bool		USDAssetCache.h	EditAnywhere Category="Assets" AdvancedDisplay
CriticalSection	FCriticalSection	Used to ensure thread safety.	USDAssetCache.h
OwnedAssets	TSet< TWeakObjectPtr< UObject > >	Points to the assets in primary storage, used to quickly check if we own an asset.	USDAssetCache.h	NonPIEDuplicateTransient
PersistentStorage	TMap< FString, TObjectPtr< UObject > >		USDAssetCache.h	NonPIEDuplicateTransient VisibleAnywhere Category="Assets"
PrimPathToAssets	TMap< FString, TWeakObjectPtr< UObject > >	Keeps associations from prim paths to assets that we own in primary storage.	USDAssetCache.h	NonPIEDuplicateTransient
TransientStorage	TMap< FString, TObjectPtr< UObject > >	For now everything is NonPIEDuplicateTransient as this is mostly a subobject of AUsdStageActor.	USDAssetCache.h	NonPIEDuplicateTransient Transient VisibleAnywhere Category="Assets"

Name	Remarks	Include Path
void CacheAsset ( const FString& Hash, UObject* Asset, const FString& PrimPath )		USDAssetCache.h
void DiscardAsset ( const FString& Hash )		USDAssetCache.h
TSet< UObject * > GetActiveAssets()	Returns assets that aren't marked as stale	USDAssetCache.h
UObject * GetAssetForPrim ( const FString& PrimPath ) const		USDAssetCache.h
TMap< FString, TWeakObjectPtr< UObject > > GetAssetPrimLinks()		USDAssetCache.h
UObject * GetCachedAsset ( const FString& Hash ) const		USDAssetCache.h
TMap< FString, TObjectPtr< UObject > > GetCachedAssets()		USDAssetCache.h
FString GetHashForAsset ( UObject* Asset ) const	Returns the hash used as a key for an asset, in case we own it. Returns the empty string otherwise.	USDAssetCache.h
int32 GetNumAssets()		USDAssetCache.h
FString GetPrimForAsset ( UObject* Asset ) const	Returns the first prim path associated with an asset (see TMap::FindKey)	USDAssetCache.h
bool IsAssetOwnedByCache ( UObject* Asset ) const		USDAssetCache.h
void LinkAssetToPrim ( const FString& PrimPath, UObject* Asset )		USDAssetCache.h
void MarkAssetsAsStale ()	Every time an asset is retrieved/inserted we add it to ActiveAssets.	USDAssetCache.h
void RemoveAssetPrimLink ( const FString& PrimPath )		USDAssetCache.h
void Reset()		USDAssetCache.h

Name	Remarks	Include Path	Unreal Specifiers
virtual void PostEditChangeProperty ( FPropertyChangedEvent& PropertyChangedEvent )		USDAssetCache.h
virtual void Serialize ( FArchive& Ar )	We need to be serializable so that AUsdStageActor can duplicate us for PIE.	USDAssetCache.h