UMaterialExpressionTextureSample | Unreal Engine 5.5 Documentation

Inheritance Hierarchy


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

UCLASS (CollapseCategories, HideCategories=Object, MinimalAPI)  
class UMaterialExpressionTextureSample : public UMaterialExpressionTextureBase

Type	Name	Description
uint8: 1	AutomaticViewMipBias	Whether the texture should be sampled with per view mip biasing for sharper output with Temporal AA.
FExpressionInput	AutomaticViewMipBiasValue
uint8: 1	bShowTextureInputPin	Inherited parameter expressions can hide unused input pin.
uint8	ConstCoordinate	Only used if Coordinates is not hooked up
int32	ConstMipValue	Only used if MipValue is not hooked up
FExpressionInput	Coordinates
FExpressionInput	CoordinatesDX	Enabled only if MipValueMode == TMVM_Derivative
FExpressionInput	CoordinatesDY	Enabled only if MipValueMode == TMVM_Derivative
FExpressionInput	MipValue	Meaning depends on MipValueMode, a single unit is one mip level
TEnumAsByte< ETextureMipValueMode >	MipValueMode	Defines how the MipValue property is applied to the texture lookup
TEnumAsByte< ESamplerSourceMode >	SamplerSource	Controls where the sampler for this texture lookup will come from.
FExpressionInput	TextureObject	Texture object input which overrides Texture if specified.

	Type	Name	Description
		UMaterialExpressionTextureSample ( const FObjectInitializer& ObjectInitializer )

	Type	Name	Description
	int32	CompileMipValue0 ( FMaterialCompiler* Compiler )
	int32	CompileMipValue1 ( FMaterialCompiler* Compiler )
	bool	GenerateHLSLExpressionBase ( FMaterialHLSLGenerator& Generator, UE::HLSLTree::FScope& Scope, const UE::HLSLTree::FExpression* TextureExpression, UE::HLSLTree::FExpression const*& OutExpression )
	void	UpdateTextureResource ( UTexture* InTexture )

Type	Name	Description
void	Build ( UE::MIR::FEmitter& Emitter )	Builds this expression's material IR.
bool	CanIgnoreOutputIndex ()	If true, discards the output index when caching this expression which allows more cases to re-use the output instead of adding a separate instruction
int32	Compile ( FMaterialCompiler* Compiler, int32 OutputIndex )	Create the new shader code chunk needed for the Abs expression
bool	GenerateHLSLExpression ( FMaterialHLSLGenerator& Generator, UE::HLSLTree::FScope& Scope, int32 OutputIndex, UE::HLSLTree::FExpression const*& OutExpression )
void	GetCaption ( TArray< FString >& OutCaptions )	Returns the text to display on the material expression (in the material editor).
void	GetConnectorToolTip ( int32 InputIndex, int32 OutputIndex, TArray< FString >& OutToolTip )	Get a tooltip for the specified connector.
FExpressionInput *	GetInput ( int32 InputIndex )	Returns the input at index InputIndex if valid, nullptr otherwise.
FName	GetInputName ( int32 InputIndex )
TArrayView< FExpressionInput * >	GetInputsView ()
uint32	GetInputType ( int32 InputIndex )
int32	GetLabelPadding ()	Returns the amount of padding to use for the label.
int32	GetWidth ()	Get the width required by this expression (in the material editor).

Type	Name	Description
bool	CanEditChange ( const FProperty* InProperty )	Called by the editor to query whether a property of this object is allowed to be modified.
void	PostEditChangeProperty ( FPropertyChangedEvent& PropertyChangedEvent )	Called when a property on this object has been modified externally
void	PostLoad ()	Do any object-specific cleanup required immediately after loading an object.