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  3. UMaterialExpressionScalarParameter

UMaterialExpressionScalarParameter

API > API/Runtime > API/Runtime/Engine

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

Syntax

UCLASS (CollapseCategories, HideCategories=Object, MinimalAPI)  
class UMaterialExpressionScalarParameter : public UMaterialExpressionParameter

Inheritance Hierarchy

Derived Classes

Constructors

Name Remarks Include Path Unreal Specifiers

UMaterialExpressionScalarParameter ( const FObjectInitializer& ObjectInitializer
)

   Materials/MaterialExpressionScalarParameter.h  

Variables

Public

Name Type Remarks Include Path Unreal Specifiers
bUseCustomPrimitiveData bool True if this parameter value provided by custom data on the primitive. Materials/MaterialExpressionScalarParameter.h
  • EditAnywhere
  • Category=CustomPrimitiveData
ControlType EMaterialScalarParameterControlType UI control type used for setting values in the material instance editor. Materials/MaterialExpressionScalarParameter.h
  • EditAnywhere
  • Category=UI
  • Meta=(EditCondition="!bUseCustomPrimitiveData")
DefaultValue float The default parameter value. Materials/MaterialExpressionScalarParameter.h
  • EditAnywhere
  • Category=MaterialExpressionScalarParameter
  • Meta=(ShowAsInputPin="Primary")
Enumeration TSoftObjectPtr< UObject > Enumeration object to use in the material instance editor. Materials/MaterialExpressionScalarParameter.h
  • EditAnywhere
  • Category=UI
  • Meta=(EditCondition="ControlType == EMaterialScalarParameterControlType::Enumeration", DisplayThumbnail="false", AllowedClasses="/Script/CoreUObject.Enum, /Script/Engine.MaterialEnumerationProvider")
EnumerationIndex uint8 Index of the enumeration to use from the material instance Enumeration Objects. Materials/MaterialExpressionScalarParameter.h
  • EditAnywhere
  • Category=UI
  • Meta=(EditCondition="ControlType == EMaterialScalarParameterControlType::EnumerationIndex", ClampMin="0")
PrimitiveDataIndex uint8 The slot index for custom primitive data. Materials/MaterialExpressionScalarParameter.h
  • EditAnywhere
  • Category=CustomPrimitiveData
  • Meta=(ClampMin="0", EditCondition="bUseCustomPrimitiveData")
SliderMax float Sets the upper bound for this parameter in the material instance editor. Materials/MaterialExpressionScalarParameter.h
  • EditAnywhere
  • Category=UI
  • Meta=(EditCondition="ControlType == EMaterialScalarParameterControlType::Numeric")
SliderMin float Sets the lower bound for this parameter in the material instance editor. Materials/MaterialExpressionScalarParameter.h
  • EditAnywhere
  • Category=UI
  • Meta=(EditCondition="!bUseCustomPrimitiveData && ControlType == EMaterialScalarParameterControlType::Numeric")

Functions

Public

Name Remarks Include Path Unreal Specifiers

virtual bool IsUsedAsAtlasPosition()

 Used to override behavior in derived curve atlas parameter types. Materials/MaterialExpressionScalarParameter.h  

bool SetParameterValue ( FName InParameterName,
float InValue,
EMaterialExpressionSetParameterValueFlags Flags
)

   Materials/MaterialExpressionScalarParameter.h  

Overridden from UMaterialExpression

Name Remarks Include Path Unreal Specifiers

virtual int32 Compile ( FMaterialCompiler* Compiler,
int32 OutputIndex
)

 Create the new shader code chunk needed for the Abs expression Materials/MaterialExpressionScalarParameter.h  

virtual void GetCaption ( TArray< FString >& OutCaptions
) const

 Returns the text to display on the material expression (in the material editor). Materials/MaterialExpressionScalarParameter.h  

virtual bool GetParameterValue ( FMaterialParameterMetadata& OutMeta
) const

   Materials/MaterialExpressionScalarParameter.h  

virtual bool HasClassAndNameCollision ( UMaterialExpression* OtherExpression
) const

   Materials/MaterialExpressionScalarParameter.h  
  Materials/MaterialExpressionScalarParameter.h  

virtual void ValidateParameterName ( const bool bAllowDuplicateName
)

   Materials/MaterialExpressionScalarParameter.h  

Overridden from UObject

Name Remarks Include Path Unreal Specifiers

virtual void PostEditChangeProperty ( FPropertyChangedEvent& PropertyChangedEvent
)

   Materials/MaterialExpressionScalarParameter.h  

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