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  3. UMaterialExpressionMaterialFunctionCall

UMaterialExpressionMaterialFunctionCall

API > API/Runtime > API/Runtime/Engine

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

Syntax

UCLASS (HideCategories=object, MinimalAPI)  
class UMaterialExpressionMaterialFunctionCall : public UMaterialExpression

Inheritance Hierarchy

Constructors

Name Remarks Include Path Unreal Specifiers

UMaterialExpressionMaterialFunctionCall ( const FObjectInitializer& ObjectInitializer
)

   Materials/MaterialExpressionMaterialFunctionCall.h  

Variables

Public

Name Type Remarks Include Path Unreal Specifiers
FunctionInputs TArray< struct FFunctionExpressionInput > Array of all the function inputs that this function exposes. Materials/MaterialExpressionMaterialFunctionCall.h  
FunctionOutputs TArray< struct FFunctionExpressionOutput > Array of all the function outputs that this function exposes. Materials/MaterialExpressionMaterialFunctionCall.h  
FunctionParameterInfo FMaterialParameterInfo Used by material parameters to split references to separate instances. Materials/MaterialExpressionMaterialFunctionCall.h
  • Transient
MaterialFunction TObjectPtr< class UMaterialFunctionInterface > The function to call. Materials/MaterialExpressionMaterialFunctionCall.h
  • EditAnywhere
  • Category=MaterialExpressionMaterialFunctionCall
  • Meta=(DisallowedClasses="/Script/Engine.MaterialFunctionInstance")

Protected

Name Type Remarks Include Path Unreal Specifiers
SavedMaterialFunction UMaterialFunctionInterface * Stashed data between a Pre/PostEditChange event Materials/MaterialExpressionMaterialFunctionCall.h  
SharedCompileState FMaterialFunctionCompileState * Temporary compilation state shared between function calls Materials/MaterialExpressionMaterialFunctionCall.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

void GetDependentFunctions ( TArray< UMaterialFunctionInterface* >& DependentFunctions
) const

   Materials/MaterialExpressionMaterialFunctionCall.h  

FName GetInputNameWithType ( int32 InputIndex,
bool bWithType
) const

 Util to get name of a particular type, optionally with type appended in parenthesis Materials/MaterialExpressionMaterialFunctionCall.h  

bool IterateDependentFunctions ( TFunctionRef< bool(UMaterialFunctionInterface*)> Predicate
) const

   Materials/MaterialExpressionMaterialFunctionCall.h  

void LinkFunctionIntoCaller ( FMaterialCompiler* Compiler
)

   Materials/MaterialExpressionMaterialFunctionCall.h  

void PopParameterOwner ( FMaterialCompiler* Compiler
)

   Materials/MaterialExpressionMaterialFunctionCall.h  

void PushParameterOwner ( FMaterialCompiler* Compiler
)

   Materials/MaterialExpressionMaterialFunctionCall.h  

virtual bool SetMaterialFunction ( UMaterialFunctionInterface* NewMaterialFunction
)

   Materials/MaterialExpressionMaterialFunctionCall.h
  • BlueprintCallable
  • Category="MaterialEditing"

bool SetMaterialFunctionEx ( UMaterialFunctionInterface* OldFunctionResource,
UMaterialFunctionInterface* NewResource
)

 Set a new material function, given an old function so that links can be passed over if the name matches. Materials/MaterialExpressionMaterialFunctionCall.h  

void SetSharedCompileState ( FMaterialFunctionCompileState* SharedState
)

 Temporary compilation state shared between function calls Materials/MaterialExpressionMaterialFunctionCall.h  

void UnlinkFunctionFromCaller ( FMaterialCompiler* Compiler
)

   Materials/MaterialExpressionMaterialFunctionCall.h  

void UpdateFromFunctionResource ( bool bRecreateAndLinkNode
)

 Update FunctionInputs and FunctionOutputs from the MaterialFunction. Materials/MaterialExpressionMaterialFunctionCall.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/MaterialExpressionMaterialFunctionCall.h  

virtual void GatherSubstrateMaterialInfo ( FSubstrateMaterialInfo& SubstrateMaterialInfo,
int32 OutputIndex
)

 Recursively parse nodes outputing Substrate material in order to gather all the possible shading models used in a material graph output a Substrate material. Materials/MaterialExpressionMaterialFunctionCall.h  

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

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

virtual void GetConnectorToolTip ( int32 InputIndex,
int32 OutputIndex,
TArray< FString >& OutToolTip
)

 Get a tooltip for the specified connector. Materials/MaterialExpressionMaterialFunctionCall.h  

virtual FString GetDescription()

 Get a single line description of the material expression (used for lists) Materials/MaterialExpressionMaterialFunctionCall.h  

virtual void GetExpressionToolTip ( TArray< FString >& OutToolTip
)

 Get a tooltip for the expression itself. Materials/MaterialExpressionMaterialFunctionCall.h  

virtual FExpressionInput * GetInput ( int32 InputIndex
)

 Returns the input at index InputIndex if valid, nullptr otherwise. Materials/MaterialExpressionMaterialFunctionCall.h  

virtual FName GetInputName ( int32 InputIndex
) const

   Materials/MaterialExpressionMaterialFunctionCall.h  

virtual TArrayView< FExpressionInput * > GetInputsView()

   Materials/MaterialExpressionMaterialFunctionCall.h  

virtual EMaterialValueType GetInputValueType ( int32 InputIndex
)

   Materials/MaterialExpressionMaterialFunctionCall.h  

virtual bool IsInputConnectionRequired ( int32 InputIndex
) const

   Materials/MaterialExpressionMaterialFunctionCall.h  

virtual bool IsResultMaterialAttributes ( int32 OutputIndex
)

 Marks certain expression types as outputting material attributes. Materials/MaterialExpressionMaterialFunctionCall.h  

virtual bool IsResultSubstrateMaterial ( int32 OutputIndex
)

 Marks certain expression types as outputting Substrate material. Materials/MaterialExpressionMaterialFunctionCall.h  

virtual bool MatchesSearchQuery ( const TCHAR* SearchQuery
)

 MatchesSearchQuery: Check this expression to see if it matches the search query Materials/MaterialExpressionMaterialFunctionCall.h  
A starta material is a tree with FrontMateiral being its root and BSDF being leaves, with operators in the middle. Materials/MaterialExpressionMaterialFunctionCall.h  

Overridden from UObject

Name Remarks Include Path Unreal Specifiers

virtual void PostEditChangeProperty ( FPropertyChangedEvent& PropertyChangedEvent
)

   Materials/MaterialExpressionMaterialFunctionCall.h  

virtual void PostLoad()

   Materials/MaterialExpressionMaterialFunctionCall.h  

virtual void PreEditChange ( FProperty* PropertyAboutToChange
)

   Materials/MaterialExpressionMaterialFunctionCall.h  

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