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

Light Theme

Dark Theme

UMaterialExpressionParameter

Windows

MacOS

Linux

Inheritance Hierarchy

UObjectBase

UObjectBaseUtility

UObject

UMaterialExpression

UMaterialExpressionParameter

UMaterialExpressionScalarParameter

UMaterialExpressionCurveAtlasRowParameter

UMaterialExpressionStaticBoolParameter

UMaterialExpressionStaticSwitchParameter

UMaterialExpressionStaticComponentMaskParameter

UMaterialExpressionVectorParameter

UMaterialExpressionChannelMaskParameter

References

Module	Engine
Header	/Engine/Source/Runtime/Engine/Classes/Materials/MaterialExpressionParameter.h
Include	#include "Materials/MaterialExpressionParameter.h"

Syntax

class UMaterialExpressionParameter : public UMaterialExpression

Variables

	Name	Description
FGuid	ExpressionGUID	GUID that should be unique within the material, this is used for parameter renaming.
FName	Group	The name of the parameter Group to display in MaterialInstance Editor. Default is None group
FName	ParameterName	The name of the parameter
int32	SortPriority	Controls where the this parameter is displayed in a material instance parameter list.

Constructors

	Name	Description
	UMaterialExpressionParameter ( const FObjectInitializer& ObjectIn... )

Functions

		Name	Description
	void	GetAllParameterInfo ( TArray< FMaterialParameterInfo >& ..., TArray< FGuid >& OutParameterIds, const FMaterialParameterInfo& InBa... )	Get list of parameter names for static parameter sets

Overridden from UMaterialExpression

	Name	Description
bool	CanRenameNode()	Can this node be renamed?
FString	GetEditableName()	Returns the current 'name' of the node (typically a parameter name).
FGuid &	GetParameterExpressionId()	Callback to access derived classes' parameter expression id.
FName	GetParameterName()
bool	HasAParameterName()	Parameter Name functions, this is requires as multiple class have ParameterName but are not UMaterialExpressionParameter due to class hierarchy.
bool	MatchesSearchQuery ( const TCHAR* SearchQuery )	MatchesSearchQuery: Check this expression to see if it matches the search query
void	SetEditableName ( const FString& NewName )	Sets the current 'name' of the node (typically a parameter name) Only valid to call on a node that previously returned CanRenameNode() = true.
void	SetParameterName ( const FName& Name )
void	ValidateParameterName ( const bool bAllowDuplicateName )

Constants

Name	Description
ParameterDefaultName

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

Take our survey

Dismiss