FExpressionInput | Unreal Engine 5.5 Documentation | Epic Developer Community

API > API/Runtime > API/Runtime/Engine

Inheritance Hierarchy

References


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

Syntax

struct FExpressionInput

Remarks

FExpressionInput

Variables

	Type	Name	Description
	TObjectPtr< class UMaterialExpression >	Expression	UMaterial expression that this input is connected to, or NULL if not connected.
	UMaterialExpression *	Expression	Material expression that this input is connected to, or NULL if not connected.
	FName	InputName	Optional name of the input.
	int32	Mask	Input value component mask.
	int32	MaskA
	int32	MaskB
	int32	MaskG
	int32	MaskR
	int32	OutputIndex	Index into Expression's outputs array that this input is connected to.

Constructors

	Type	Name	Description
		FExpressionInput ()

Functions

	Type	Name	Description
	const UE::HLSLTree::FExpression *	AcquireHLSLExpression ( FMaterialHLSLGenerator& Generator, UE::HLSLTree::FScope& Scope )
	const UE::HLSLTree::FExpression *	AcquireHLSLExpression ( FMaterialHLSLGenerator& Generator, UE::HLSLTree::FScope& Scope, int32 InputIndex )
	const UE::HLSLTree::FExpression *	AcquireHLSLExpressionOrConstant ( FMaterialHLSLGenerator& Generator, UE::HLSLTree::FScope& Scope, const UE::Shader::FValue& ConstantValue, int32 InputIndex )
	const UE::HLSLTree::FExpression *	AcquireHLSLExpressionOrConstant ( FMaterialHLSLGenerator& Generator, UE::HLSLTree::FScope& Scope, const UE::Shader::FValue& ConstantValue )
	const UE::HLSLTree::FExpression *	AcquireHLSLExpressionOrDefaultExpression ( FMaterialHLSLGenerator& Generator, UE::HLSLTree::FScope& Scope, const UE::HLSLTree::FExpression* DefaultExpression, int32 InputIndex )
	const UE::HLSLTree::FExpression *	AcquireHLSLExpressionOrDefaultExpression ( FMaterialHLSLGenerator& Generator, UE::HLSLTree::FScope& Scope, const UE::HLSLTree::FExpression* DefaultExpression )
	const UE::HLSLTree::FExpression *	AcquireHLSLExpressionOrExternalInput ( FMaterialHLSLGenerator& Generator, UE::HLSLTree::FScope& Scope, UE::HLSLTree::Material::EExternalInput Input, int32 InputIndex )
	const UE::HLSLTree::FExpression *	AcquireHLSLExpressionOrExternalInput ( FMaterialHLSLGenerator& Generator, UE::HLSLTree::FScope& Scope, UE::HLSLTree::Material::EExternalInput Input )
	int32	Compile ( FMaterialCompiler* Compiler )
	void	Connect ( int32 InOutputIndex, UMaterialExpression* InExpression )	Connects output of InExpression to this input
	FExpressionOutput *	GetConnectedOutput ()	Returns the connected expression output if this input is connected to one, nullptr otherwise.
	FExpressionInput	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	IsConstant ()	Is the input connected to a constant value
	bool	Serialize ( FArchive& Ar )	ICPPStructOps interface
	void	SetMask ( int32 UseMask, int32 R, int32 G, int32 B, int32 A )	Helper for setting component mask.
	const UE::HLSLTree::FExpression *	TryAcquireHLSLExpression ( FMaterialHLSLGenerator& Generator, UE::HLSLTree::FScope& Scope )
	const UE::HLSLTree::FExpression *	TryAcquireHLSLExpression ( FMaterialHLSLGenerator& Generator, UE::HLSLTree::FScope& Scope, int32 InputIndex )

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