UDocumentation UE5.7 10.02.2026 (Source)
API documentation for Unreal Engine 5.7
Public Member Functions | Public Attributes | List of all members
FMaterialUniformExpression Class Referenceabstract

#include <MaterialUniformExpressions.h>

+ Inheritance diagram for FMaterialUniformExpression:

Public Member Functions

virtual ~FMaterialUniformExpression ()
 
virtual FMaterialUniformExpressionType * GetType () const =0
 
virtual class FMaterialUniformExpressionTexture * GetTextureUniformExpression ()
 
virtual class FMaterialUniformExpressionExternalTexture * GetExternalTextureUniformExpression ()
 
virtual class FMaterialUniformExpressionTextureCollection * GetTextureCollectionUniformExpression ()
 
virtual bool IsConstant () const
 
virtual bool IsIdentical (const FMaterialUniformExpression *OtherExpression) const
 
virtual void WriteNumberOpcodes (UE::Shader::FPreshaderData &OutData) const
 
virtual void GetNumberValue (const struct FMaterialRenderContext &Context, FLinearColor &OutValue) const
 
virtual TArrayView< const FMaterialUniformExpression * > GetChildren () const
 
- Public Member Functions inherited from FRefCountedObject
 FRefCountedObject ()
 
virtual ~FRefCountedObject ()
 
 FRefCountedObject (const FRefCountedObject &Rhs)=delete
 
FRefCountedObject & operator= (const FRefCountedObject &Rhs)=delete
 
FReturnedRefCountValue AddRef () const
 
uint32 Release () const
 
uint32 GetRefCount () const
 

Public Attributes

int32 UniformOffset = INDEX_NONE
 
int32 UniformIndex = INDEX_NONE
 

Detailed Description

Represents an expression which only varies with uniform inputs.

Constructor & Destructor Documentation

◆ ~FMaterialUniformExpression()

virtual FMaterialUniformExpression::~FMaterialUniformExpression ( )
inlinevirtual

Member Function Documentation

◆ GetChildren()

virtual TArrayView< const FMaterialUniformExpression * > FMaterialUniformExpression::GetChildren ( ) const
inlinevirtual

Reimplemented in FMaterialUniformExpressionSine, FMaterialUniformExpressionTrigMath, FMaterialUniformExpressionSquareRoot, FMaterialUniformExpressionRcp, FMaterialUniformExpressionLength, FMaterialUniformExpressionNormalize, FMaterialUniformExpressionExponential, FMaterialUniformExpressionExponential2, FMaterialUniformExpressionLogarithm, FMaterialUniformExpressionLogarithm2, FMaterialUniformExpressionLogarithm10, FMaterialUniformExpressionFoldedMath, FMaterialUniformExpressionPeriodic, FMaterialUniformExpressionAppendVector, FMaterialUniformExpressionMin, FMaterialUniformExpressionMax, FMaterialUniformExpressionClamp, FMaterialUniformExpressionSaturate, FMaterialUniformExpressionComponentSwizzle, FMaterialUniformExpressionFloor, FMaterialUniformExpressionCeil, FMaterialUniformExpressionRound, FMaterialUniformExpressionTruncate, FMaterialUniformExpressionSign, FMaterialUniformExpressionFrac, FMaterialUniformExpressionFmod, FMaterialUniformExpressionModulo, and FMaterialUniformExpressionAbs.

◆ GetExternalTextureUniformExpression()

virtual class FMaterialUniformExpressionExternalTexture * FMaterialUniformExpression::GetExternalTextureUniformExpression ( )
inlinevirtual

Reimplemented in FMaterialUniformExpressionExternalTexture.

◆ GetNumberValue()

void FMaterialUniformExpression::GetNumberValue ( const struct FMaterialRenderContext &  Context,
FLinearColor &  OutValue 
) const
virtual

◆ GetTextureCollectionUniformExpression()

virtual class FMaterialUniformExpressionTextureCollection * FMaterialUniformExpression::GetTextureCollectionUniformExpression ( )
inlinevirtual

Reimplemented in FMaterialUniformExpressionTextureCollection.

◆ GetTextureUniformExpression()

virtual class FMaterialUniformExpressionTexture * FMaterialUniformExpression::GetTextureUniformExpression ( )
inlinevirtual

Reimplemented in FMaterialUniformExpressionTexture.

◆ GetType()

virtual FMaterialUniformExpressionType * FMaterialUniformExpression::GetType ( ) const
pure virtual

◆ IsConstant()

virtual bool FMaterialUniformExpression::IsConstant ( ) const
inlinevirtual

Reimplemented in FMaterialUniformExpressionConstant, FMaterialUniformExpressionGenericConstant, FMaterialUniformExpressionNumericParameter, FMaterialUniformExpressionStaticBoolParameter, FMaterialUniformExpressionTextureParameter, FMaterialUniformExpressionFlipBookTextureParameter, FMaterialUniformExpressionSine, FMaterialUniformExpressionTrigMath, FMaterialUniformExpressionSquareRoot, FMaterialUniformExpressionRcp, FMaterialUniformExpressionLength, FMaterialUniformExpressionNormalize, FMaterialUniformExpressionFoldedMath, FMaterialUniformExpressionPeriodic, FMaterialUniformExpressionAppendVector, FMaterialUniformExpressionMin, FMaterialUniformExpressionMax, FMaterialUniformExpressionClamp, FMaterialUniformExpressionSaturate, FMaterialUniformExpressionComponentSwizzle, FMaterialUniformExpressionFloor, FMaterialUniformExpressionCeil, FMaterialUniformExpressionRound, FMaterialUniformExpressionTruncate, FMaterialUniformExpressionSign, FMaterialUniformExpressionFrac, FMaterialUniformExpressionFmod, FMaterialUniformExpressionModulo, FMaterialUniformExpressionAbs, FMaterialUniformExpressionTextureCollectionParameter, FMaterialUniformExpressionExternalTextureBase, FMaterialUniformExpressionExponential, FMaterialUniformExpressionExponential2, FMaterialUniformExpressionLogarithm, FMaterialUniformExpressionLogarithm2, FMaterialUniformExpressionLogarithm10, FMaterialUniformExpressionRuntimeVirtualTextureUniform, and FMaterialUniformExpressionSparseVolumeTextureUniform.

◆ IsIdentical()

virtual bool FMaterialUniformExpression::IsIdentical ( const FMaterialUniformExpression *  OtherExpression) const
inlinevirtual

Reimplemented in FMaterialUniformExpressionTexture, FMaterialUniformExpressionConstant, FMaterialUniformExpressionGenericConstant, FMaterialUniformExpressionNumericParameter, FMaterialUniformExpressionStaticBoolParameter, FMaterialUniformExpressionTextureParameter, FMaterialUniformExpressionSine, FMaterialUniformExpressionTrigMath, FMaterialUniformExpressionSquareRoot, FMaterialUniformExpressionRcp, FMaterialUniformExpressionLength, FMaterialUniformExpressionNormalize, FMaterialUniformExpressionFoldedMath, FMaterialUniformExpressionPeriodic, FMaterialUniformExpressionAppendVector, FMaterialUniformExpressionMin, FMaterialUniformExpressionMax, FMaterialUniformExpressionClamp, FMaterialUniformExpressionSaturate, FMaterialUniformExpressionComponentSwizzle, FMaterialUniformExpressionFloor, FMaterialUniformExpressionCeil, FMaterialUniformExpressionRound, FMaterialUniformExpressionTruncate, FMaterialUniformExpressionSign, FMaterialUniformExpressionFrac, FMaterialUniformExpressionFmod, FMaterialUniformExpressionModulo, FMaterialUniformExpressionAbs, FMaterialUniformExpressionTextureCollection, FMaterialUniformExpressionTextureCollectionParameter, FMaterialUniformExpressionExternalTextureBase, FMaterialUniformExpressionExternalTextureParameter, FMaterialUniformExpressionExponential, FMaterialUniformExpressionExponential2, FMaterialUniformExpressionLogarithm, FMaterialUniformExpressionLogarithm2, FMaterialUniformExpressionLogarithm10, FMaterialUniformExpressionTextureProperty, FMaterialUniformExpressionExternalTextureCoordinateScaleRotation, FMaterialUniformExpressionExternalTextureCoordinateOffset, FMaterialUniformExpressionRuntimeVirtualTextureUniform, and FMaterialUniformExpressionSparseVolumeTextureUniform.

◆ WriteNumberOpcodes()

void FMaterialUniformExpression::WriteNumberOpcodes ( UE::Shader::FPreshaderData &  OutData) const
virtual

Reimplemented in FMaterialUniformExpressionConstant, FMaterialUniformExpressionGenericConstant, FMaterialUniformExpressionNumericParameter, FMaterialUniformExpressionStaticBoolParameter, FMaterialUniformExpressionSine, FMaterialUniformExpressionTrigMath, FMaterialUniformExpressionSquareRoot, FMaterialUniformExpressionRcp, FMaterialUniformExpressionLength, FMaterialUniformExpressionNormalize, FMaterialUniformExpressionExponential, FMaterialUniformExpressionExponential2, FMaterialUniformExpressionLogarithm, FMaterialUniformExpressionLogarithm2, FMaterialUniformExpressionLogarithm10, FMaterialUniformExpressionFoldedMath, FMaterialUniformExpressionPeriodic, FMaterialUniformExpressionAppendVector, FMaterialUniformExpressionMin, FMaterialUniformExpressionMax, FMaterialUniformExpressionClamp, FMaterialUniformExpressionSaturate, FMaterialUniformExpressionComponentSwizzle, FMaterialUniformExpressionFloor, FMaterialUniformExpressionCeil, FMaterialUniformExpressionRound, FMaterialUniformExpressionTruncate, FMaterialUniformExpressionSign, FMaterialUniformExpressionFrac, FMaterialUniformExpressionFmod, FMaterialUniformExpressionModulo, FMaterialUniformExpressionAbs, FMaterialUniformExpressionTextureProperty, FMaterialUniformExpressionExternalTextureCoordinateScaleRotation, FMaterialUniformExpressionExternalTextureCoordinateOffset, FMaterialUniformExpressionRuntimeVirtualTextureUniform, and FMaterialUniformExpressionSparseVolumeTextureUniform.

Member Data Documentation

◆ UniformIndex

int32 FMaterialUniformExpression::UniformIndex = INDEX_NONE

Index of this uniform in the material translator's list of unique expressions

◆ UniformOffset

int32 FMaterialUniformExpression::UniformOffset = INDEX_NONE

Offset of this uniform, within the shader's uniform buffer array

The documentation for this class was generated from the following files: