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  3. UGeometryCache

UGeometryCache

A Geometry Cache is a piece/set of geometry that consists of individual Mesh/Transformation samples.

API > API/Plugins > API/Plugins/GeometryCache

Inheritance Hierarchy

References

   
Module GeometryCache
Header /Engine/Plugins/Runtime/GeometryCache/Source/GeometryCache/Classes/GeometryCache.h
Include #include "GeometryCache.h"

Syntax

UCLASS&40;HideCategories&61;Object, BlueprintType, Config&61;Engine&41;  
class UGeometryCache :  
    public UObject,  
    public IInterface_AssetUserData

Remarks

A Geometry Cache is a piece/set of geometry that consists of individual Mesh/Transformation samples. In contrast with Static Meshes they can have their vertices animated in certain ways. *

Variables

  Type Name Description
Public variable UProperty Category instanced, visibleanywhere TObjectPtr< class UAssetImportData > AssetImportData Importing data and options used for this Geometry cache object
Public variable UProperty Category, EditAnywhere, AdvancedDisplay instanced TArray< TObjectPtr< UAssetUserData > > AssetUserData Array of user data stored with the asset
Protected variable UProperty Category BlueprintReadOnly int32 EndFrame  
Protected variable UProperty uint64 Hash  
Public variable UProperty Category, EditAnywhere BlueprintReadWrite TArray< TObjectPtr< UMaterialInterface > > Materials  
Public variable UProperty Category, EditAnywhere BlueprintReadWrite TArray< FName > MaterialSlotNames  
Protected variable UProperty Category BlueprintReadOnly int32 StartFrame  
Public variable UProperty Category instanced, visibleanywhere TObjectPtr< class UThumbnailInfo > ThumbnailInfo Information for thumbnail rendering
Public variable UProperty Category visibleanywhere TArray< TObjectPtr< UGeometryCacheTrack > > Tracks GeometryCache track defining the samples/geometry data for this GeomCache instance

Constructors

  Type Name Description
Public function  

UGeometryCache ( const FObjectInitializer& ObjectInitializer
)

  

Functions

  Type Name Description
Public function void AddTrack
Public function Const float Calculate it's duration
Public function void Clears all stored data so the reimporting step can fill the instance again
Public function Const int32 Get the end frame
Public function Const int32

GetFrameAtTime ( const float Time
)

 Get the Frame at the Specified Time
Public function Const FString

GetHash ()

 Get the hash of the meshes data of the GeometryCache
Public function Const void

GetMeshDataAtTime ( float Time,
TArray< FGeometryCacheMeshData >& OutMeshData
)

 Get the mesh data at the specified time
Public function Const int32 Get the start frame
Public function void

SetFrameStartEnd ( int32 InStartFrame,
int32 InEndFrame
)

 Set the start and end frames for the GeometryCache

Overridden from UObject

  Type Name Description
Public function Virtual void Called before destroying the object.
Public function Virtual Const void Gathers a list of asset registry searchable tags which are name/value pairs with some type information This only needs to be implemented for asset objects
Public function Virtual FString

GetDesc ()

 Return a one line description of an object for viewing in the thumbnail view of the generic browser
Public function Virtual void

GetResourceSizeEx ( FResourceSizeEx& CumulativeResourceSize
)

 Get the size of the object/resource for use in memory tools or to display to artists/LDs in the Editor This is the extended version which separates up the used memory into different memory regions (the actual definition of which may be platform specific).
Public function Virtual bool Called to check if the object is ready for FinishDestroy.
Public function Virtual void Called after the C++ constructor and after the properties have been initialized, including those loaded from config.
Public function Virtual void

PreEditChange ( FProperty* PropertyAboutToChange
)

 This is called when a property is about to be modified externally
Public function Virtual void Handles reading, writing, and reference collecting using FArchive.

Overridden from IInterface_AssetUserData

  Type Name Description
Public function Virtual void  
Public function Virtual Const const TArray< UAssetUserData * > *  
Public function Virtual UAssetUserData *  
Public function Virtual void  

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