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Unreal Engine 5.0 Documentation

> Unreal Engine API Reference > Runtime > Engine > FExpressionInput

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FExpressionInput

[FExpressionInput](API\Runtime\Engine\FExpressionInput)

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Inheritance Hierarchy

FExpressionInput

FMaterialAttributesInput

FMaterialInput

	FColorMaterialInput
	FScalarMaterialInput
	FShadingModelMaterialInput
	FStrataMaterialInput
	FVector2MaterialInput
	FVectorMaterialInput

References

Module	Engine
Header	/Engine/Source/Runtime/Engine/Public/MaterialExpressionIO.h
Include	#include "MaterialExpressionIO.h"

Syntax

struct FExpressionInput

Remarks

FExpressionInput

Variables

		Name	Description
	UMaterialExpres...	Expression	Material expression that this input is connected to, or NULL if not connected.
	FName	ExpressionName	Material expression name that this input is connected to, or None if not connected.
	FName	InputName	Optional name of the input.
	int32	Mask
	int32	MaskA
	int32	MaskB
	int32	MaskG
	int32	MaskR
	int32	OutputIndex	Index into Expression's outputs array that this input is connected to.

Constructors

	Name	Description
	FExpressionInput()

Functions

		Name	Description
	UE::HLSLTree...	AcquireHLSLExpression ( FMaterialHLSLGenerator& Generator, UE::HLSLTree::FScope& Scope )
	UE::HLSLTree...	AcquireHLSLExpressionWithCast ( FMaterialHLSLGenerator& Generator, UE::HLSLTree::FScope& Scope, UE::Shader::EValueType Type )
	UE::HLSLTree...	AcquireHLSLTexture ( FMaterialHLSLGenerator& Generator, UE::HLSLTree::FScope& Scope )
	int32	Compile ( FMaterialCompiler* Compiler )
	void	Connect ( int32 InOutputIndex, UMaterialExpression* InExpress... )	Connects output of InExpression to this input
	FExpressionI...	GetTracedInput()	If this input goes through reroute nodes or other paths that should not affect code, trace back on the input chain.
	bool	IsConnected()	Tests if the input has a material expression connected to it
	bool	Serialize ( FArchive& Ar )	ICPPStructOps interface
	void	SetMask ( int32 UseMask, int32 R, int32 G, int32 B, int32 A )	Helper for setting component mask.