Unreal Engine 4.26 Documentation

Unreal Engine 4.27 Documentation

Unreal Engine 5.0 Documentation

Unreal Engine 5.1 Documentation

Unreal Engine 5.2 Documentation

Unreal Engine 5.3 Documentation

> Unreal Engine API Reference > Plugins > Niagara > FNiagaraVMExecutableData

Light Theme

Dark Theme

FNiagaraVMExecutableData

Struct containing all of the data needed to run a Niagara VM executable script.

Windows

MacOS

Linux

References

Module	Niagara
Header	/Engine/Plugins/FX/Niagara/Source/Niagara/Classes/NiagaraScript.h
Include	#include "NiagaraScript.h"

Syntax

[USTRUCT](Programming/UnrealArchitecture/Reference/Structs)()
struct FNiagaraVMExecutableData

Remarks

Struct containing all of the data needed to run a Niagara VM executable script.

Variables

	Name	Description
TArray< FNiagar...	AdditionalExternalFunctions
TArray< FNiagar...	Attributes	Attributes used by this script.
TArray< FNiagar...	AttributesWritten	List of all attributes explicitly written by this VM script graph.
uint32: 1	bNeedsGPUContextInit
bool	bReadsAttributeData
uint32: 1	bReadsSignificanceIndex
TArray< uint8 >	ByteCode	Byte code to execute for this system
TArray< FVMExte...	CalledVMExternalFunctionBindings
TArray< FVMExte...	CalledVMExternalFunctions	Array of ordered vm external functions to place in the function table.
TArray< FNiagar...	CompileTags
float	CompileTime
TArray< FNiagar...	DataInterfaceInfo	Information about all data interfaces used by this script.
TMap< FName, FN...	DataSetToParameters
FNiagaraScriptD...	DataUsage	Contains various usage information for this script.
TArray< FNiagar...	DIParamInfo
FString	ErrorMsg
TArray< FNiagar...	ExternalDependencies	List of all external dependencies of this script. If not met, linking should result in an error.
FNiagaraParamet...	InternalParameters	All the data for using external constants in the script, laid out in the order they are expected in the uniform table.
FString	LastAssemblyTranslation
TArray< FNiagar...	LastCompileEvents	Array of all compile events generated last time the script was compiled.
ENiagaraScriptC...	LastCompileStatus	Last known compile status. Lets us determine the latest state of the script byte buffer.
FString	LastHlslTranslation
FString	LastHlslTranslationGPU
uint32	LastOpCount
int32	NumTempRegisters	Number of temp registers used by this script.
int32	NumUserPtrs	Number of user pointers we must pass to the VM.
TArray< uint8 >	OptimizedByteCode	Runtime optimized byte code, specific to the system we are running on, currently can not be serialized
TArray< FString...	ParameterCollectionPaths	The parameter collections used by this script.
FNiagaraParamet...	Parameters	All the data for using external constants in the script, laid out in the order they are expected in the uniform table.
TArray< FNiagar...	ReadDataSets
TArray< uint8 >	ScriptLiterals
TArray< FSimula...	SimulationStageMetaData
TArray< FNiagar...	StatScopes	Scopes we'll track with stats.
TArray< FNiagar...	WriteDataSets

Constructors

	Name	Description
	FNiagaraVMExecutableData()

Functions

		Name	Description
	void	BakeScriptLiterals ( TArray< uint8 >& OutLiterals )
	bool	IsValid()
	void	Reset()
	void	SerializeData ( FArchive& Ar, bool bDDCData )

Help shape the future of Unreal Engine documentation! Tell us how we're doing so we can serve you better.

Take our survey

Dismiss