UMaterialExpressionAggregate | Unreal Engine 5.7 Documentation


Name	UMaterialExpressionAggregate
Type	class
Header File	/Engine/Source/Runtime/Engine/Public/Materials/MaterialExpressionAggregate.h
Include Path	#include "Materials/MaterialExpressionAggregate.h"

Syntax

UCLASS (MinimalAPI, Meta=(NewMaterialTranslator))  
class UMaterialExpressionAggregate : public UMaterialExpression

Name	Remarks	Include Path	Unreal Specifiers
UMaterialExpressionAggregate ( const FObjectInitializer& ObjectInitializer )		Materials/MaterialExpressionAggregate.h

Name	Remarks
FPrevEditData	Used to store the state of the expression before a change was made.

Name	Type	Include Path	Unreal Specifiers
AttributeNames	TArray< FName >	Materials/MaterialExpressionAggregate.h	EditAnywhere Category=MaterialAggregate Meta=(DisplayName="Attributes", GetOptions="GetPossibleAttributeNames")
Entries	TArray< FMaterialExpressionAggregateEntry >	Materials/MaterialExpressionAggregate.h
Kind	EMaterialExpressionMakeAggregateKind	Materials/MaterialExpressionAggregate.h	EditAnywhere Category=MaterialAggregate
PrototypeInput	FExpressionInput	Materials/MaterialExpressionAggregate.h
UserAggregate	TObjectPtr< UMaterialAggregate >	Materials/MaterialExpressionAggregate.h	EditAnywhere Category=MaterialAggregate Meta=(EditCondition="Kind == EMaterialExpressionMakeAggregateKind::UserDefined")

Name	Type	Remarks	Include Path	Unreal Specifiers
PreEditData	FPrevEditData		Materials/MaterialExpressionAggregate.h

Name	Remarks	Include Path
const UMaterialAggregate * GetAggregate()	Returns the aggregate currently bound to this expression.	Materials/MaterialExpressionAggregate.h
const FMaterialAggregateAttribute * GetAggregateAttribute ( int32 Index ) const	Returns the attribute with given index of the aggregate currently bound to this expression.	Materials/MaterialExpressionAggregate.h
TArray< FString > GetPossibleAttributeNames()	Utility function to list the attribute names in the attribute selection combobox.	Materials/MaterialExpressionAggregate.h

Name	Remarks	Include Path
virtual void Build ( MIR::FEmitter& Emitter )	Builds this expression's material IR.	Materials/MaterialExpressionAggregate.h
virtual void GetCaption ( TArray< FString >& OutCaptions ) const	Returns the text to display on the material expression (in the material editor).	Materials/MaterialExpressionAggregate.h
virtual FExpressionInput * GetInput ( int32 InputIndex )	Returns the input at index InputIndex if valid, nullptr otherwise.	Materials/MaterialExpressionAggregate.h
virtual FName GetInputName ( int32 InputIndex ) const		Materials/MaterialExpressionAggregate.h
virtual EMaterialValueType GetInputValueType ( int32 InputIndex )		Materials/MaterialExpressionAggregate.h
virtual EMaterialValueType GetOutputValueType ( int32 OutputIndex )		Materials/MaterialExpressionAggregate.h
virtual bool IsResultMaterialAttributes ( int32 OutputIndex )	Marks certain expression types as outputting material attributes.	Materials/MaterialExpressionAggregate.h

Name	Remarks	Include Path	Unreal Specifiers
virtual void PostEditChangeProperty ( FPropertyChangedEvent& PropertyChangedEvent )		Materials/MaterialExpressionAggregate.h
virtual void PreEditChange ( FProperty* PropertyAboutToChange )		Materials/MaterialExpressionAggregate.h