UDocumentation UE5.7 10.02.2026 (Source)
API documentation for Unreal Engine 5.7
Namespaces | Macros | Enumerations | Functions
MaterialExpressions.cpp File Reference
#include "Field/FieldSystemTypes.h"
#include "Misc/MessageDialog.h"
#include "UObject/AssetRegistryTagsContext.h"
#include "UObject/LinkerLoad.h"
#include "UObject/FortniteMainBranchObjectVersion.h"
#include "UObject/UE5MainStreamObjectVersion.h"
#include "Internationalization/LocKeyFuncs.h"
#include "UObject/NaniteResearchStreamObjectVersion.h"
#include "Materials/MaterialExpressionChannelMaskParameterColor.h"
#include "UObject/UObjectAnnotation.h"
#include "RenderUtils.h"
#include "UObject/UObjectIterator.h"
#include "UObject/Package.h"
#include "SubstrateDefinitions.h"
#include "UObject/ConstructorHelpers.h"
#include "Engine/Engine.h"
#include "Engine/Font.h"
#include "DataDrivenShaderPlatformInfo.h"
#include "MaterialDomain.h"
#include "MaterialShared.h"
#include "MaterialSharedPrivate.h"
#include "Materials/HLSLMaterialTranslator.h"
#include "Materials/MaterialAttributeDefinitionMap.h"
#include "Materials/MaterialExpressionMaterialAttributeLayers.h"
#include "Materials/MaterialExpressionLayerStack.h"
#include "Materials/MaterialExpressionMaterialFunctionCall.h"
#include "Materials/MaterialFunction.h"
#include "Materials/MaterialFunctionMaterialLayer.h"
#include "Materials/MaterialFunctionMaterialLayerBlend.h"
#include "Materials/MaterialFunctionInstance.h"
#include "Materials/MaterialInstanceSupport.h"
#include "Materials/MaterialParameterCollection.h"
#include "Engine/TextureCube.h"
#include "Engine/Texture2DArray.h"
#include "Engine/TextureCubeArray.h"
#include "Engine/VolumeTexture.h"
#include "Engine/SubsurfaceProfile.h"
#include "Serialization/ObjectWriter.h"
#include "Serialization/ObjectReader.h"
#include "VT/RuntimeVirtualTexture.h"
#include "SparseVolumeTexture/SparseVolumeTexture.h"
#include "ProfilingDebugging/LoadTimeTracker.h"
#include "ColorManagement/ColorSpace.h"
#include "Containers/Array.h"
#include "Logging/StructuredLog.h"
#include "Materials/MaterialExpressionAbs.h"
#include "Materials/MaterialExpressionAbsorptionMediumMaterialOutput.h"
#include "Materials/MaterialExpressionActorPositionWS.h"
#include "Materials/MaterialExpressionAdd.h"
#include "Materials/MaterialExpressionAppendVector.h"
#include "Materials/MaterialExpressionArccosine.h"
#include "Materials/MaterialExpressionArccosineFast.h"
#include "Materials/MaterialExpressionArcsine.h"
#include "Materials/MaterialExpressionArcsineFast.h"
#include "Materials/MaterialExpressionArctangent.h"
#include "Materials/MaterialExpressionArctangentFast.h"
#include "Materials/MaterialExpressionArctangent2.h"
#include "Materials/MaterialExpressionArctangent2Fast.h"
#include "Materials/MaterialExpressionAtmosphericFogColor.h"
#include "Materials/MaterialExpressionBentNormalCustomOutput.h"
#include "Materials/MaterialExpressionBindlessSwitch.h"
#include "Materials/MaterialExpressionBlackBody.h"
#include "Materials/MaterialExpressionBlend.h"
#include "Materials/MaterialExpressionBlendMaterialAttributes.h"
#include "Materials/MaterialExpressionBreakMaterialAttributes.h"
#include "Materials/MaterialExpressionBumpOffset.h"
#include "Materials/MaterialExpressionCameraPositionWS.h"
#include "Materials/MaterialExpressionCameraVectorWS.h"
#include "Materials/MaterialExpressionCeil.h"
#include "Materials/MaterialExpressionChannelMaskParameter.h"
#include "Materials/MaterialExpressionClamp.h"
#include "Materials/MaterialExpressionCollectionParameter.h"
#include "Materials/MaterialExpressionCollectionTransform.h"
#include "Materials/MaterialExpressionColorRamp.h"
#include "Materials/MaterialExpressionComment.h"
#include "Materials/MaterialExpressionComposite.h"
#include "Materials/MaterialExpressionComponentMask.h"
#include "Materials/MaterialExpressionConstant.h"
#include "Materials/MaterialExpressionConstant2Vector.h"
#include "Materials/MaterialExpressionConstant3Vector.h"
#include "Materials/MaterialExpressionConstant4Vector.h"
#include "Materials/MaterialExpressionConstantBiasScale.h"
#include "Materials/MaterialExpressionConvert.h"
#include "Materials/MaterialExpressionCosine.h"
#include "Materials/MaterialExpressionCrossProduct.h"
#include "Materials/MaterialExpressionCustom.h"
#include "Materials/MaterialExpressionDBufferTexture.h"
#include "Materials/MaterialExpressionDDX.h"
#include "Materials/MaterialExpressionDDY.h"
#include "Materials/MaterialExpressionDecalColor.h"
#include "Materials/MaterialExpressionDecalDerivative.h"
#include "Materials/MaterialExpressionDecalLifetimeOpacity.h"
#include "Materials/MaterialExpressionDecalMipmapLevel.h"
#include "Materials/MaterialExpressionDepthFade.h"
#include "Materials/MaterialExpressionDepthOfFieldFunction.h"
#include "Materials/MaterialExpressionDeriveNormalZ.h"
#include "Materials/MaterialExpressionDesaturation.h"
#include "Materials/MaterialExpressionDistance.h"
#include "Materials/MaterialExpressionDistanceCullFade.h"
#include "Materials/MaterialExpressionDistanceFieldsRenderingSwitch.h"
#include "Materials/MaterialExpressionDivide.h"
#include "Materials/MaterialExpressionDotProduct.h"
#include "Materials/MaterialExpressionDynamicParameter.h"
#include "Materials/MaterialExpressionExternalCodeBase.h"
#include "Materials/MaterialExpressionCloudLayer.h"
#include "Materials/MaterialExpressionCustomOutput.h"
#include "Materials/MaterialExpressionEyeAdaptation.h"
#include "Materials/MaterialExpressionEyeAdaptationInverse.h"
#include "Materials/MaterialExpressionFeatureLevelSwitch.h"
#include "Materials/MaterialExpressionDataDrivenShaderPlatformInfoSwitch.h"
#include "Materials/MaterialExpressionRequiredSamplersSwitch.h"
#include "Materials/MaterialExpressionFloor.h"
#include "Materials/MaterialExpressionFloatToUInt.h"
#include "Materials/MaterialExpressionFmod.h"
#include "Materials/MaterialExpressionFontSignedDistance.h"
#include "Materials/MaterialExpressionFontSample.h"
#include "Materials/MaterialExpressionFontSampleParameter.h"
#include "Materials/MaterialExpressionFrac.h"
#include "Materials/MaterialExpressionFresnel.h"
#include "Materials/MaterialExpressionFunctionInput.h"
#include "Materials/MaterialExpressionFunctionOutput.h"
#include "Materials/MaterialExpressionGIReplace.h"
#include "Materials/MaterialExpressionRayTracingQualitySwitch.h"
#include "Materials/MaterialExpressionPathTracingQualitySwitch.h"
#include "Materials/MaterialExpressionPathTracingRayTypeSwitch.h"
#include "Materials/MaterialExpressionPathTracingBufferTexture.h"
#include "Materials/MaterialExpressionGetMaterialAttributes.h"
#include "Materials/MaterialExpressionHairAttributes.h"
#include "Materials/MaterialExpressionHairColor.h"
#include "Materials/MaterialExpressionIf.h"
#include "Materials/MaterialExpressionInverseLinearInterpolate.h"
#include "Materials/MaterialExpressionLightmapUVs.h"
#include "Materials/MaterialExpressionMeshPaintTextureCoordinateIndex.h"
#include "Materials/MaterialExpressionMeshPaintTextureObject.h"
#include "Materials/MaterialExpressionMeshPaintTextureReplace.h"
#include "Materials/MaterialExpressionPrecomputedAOMask.h"
#include "Materials/MaterialExpressionLightmassReplace.h"
#include "Materials/MaterialExpressionLightVector.h"
#include "Materials/MaterialExpressionLinearInterpolate.h"
#include "Materials/MaterialExpressionRgbToHsv.h"
#include "Materials/MaterialExpressionHsvToRgb.h"
#include "Materials/MaterialExpressionExponential.h"
#include "Materials/MaterialExpressionExponential2.h"
#include "Materials/MaterialExpressionLength.h"
#include "Materials/MaterialExpressionLocalPosition.h"
#include "Materials/MaterialExpressionLogarithm.h"
#include "Materials/MaterialExpressionLogarithm2.h"
#include "Materials/MaterialExpressionLogarithm10.h"
#include "Materials/MaterialExpressionMakeMaterialAttributes.h"
#include "Materials/MaterialExpressionMax.h"
#include "Materials/MaterialExpressionMaterialProxyReplace.h"
#include "Materials/MaterialExpressionMin.h"
#include "Materials/MaterialExpressionModulo.h"
#include "Materials/MaterialExpressionMultiply.h"
#include "Materials/MaterialExpressionNaniteReplace.h"
#include "Materials/MaterialExpressionMaterialCache.h"
#include "Materials/MaterialExpressionNormalize.h"
#include "Materials/MaterialExpressionNeuralPostProcessNode.h"
#include "Materials/MaterialExpressionObjectBounds.h"
#include "Materials/MaterialExpressionObjectLocalBounds.h"
#include "Materials/MaterialExpressionObjectOrientation.h"
#include "Materials/MaterialExpressionObjectPositionWS.h"
#include "Materials/MaterialExpressionObjectRadius.h"
#include "Materials/MaterialExpressionBounds.h"
#include "Materials/MaterialExpressionOneMinus.h"
#include "Materials/MaterialExpressionPanner.h"
#include "Materials/MaterialExpressionParameter.h"
#include "Materials/MaterialExpressionPinBase.h"
#include "Materials/MaterialExpressionPreSkinnedLocalBounds.h"
#include "Materials/MaterialExpressionPreviousFrameSwitch.h"
#include "Materials/MaterialExpressionRerouteBase.h"
#include "Materials/MaterialExpressionReroute.h"
#include "Materials/MaterialExpressionNamedReroute.h"
#include "Materials/MaterialExpressionScalarParameter.h"
#include "Materials/MaterialExpressionSetMaterialAttributes.h"
#include "Materials/MaterialExpressionShadowReplace.h"
#include "Materials/MaterialExpressionSign.h"
#include "Materials/MaterialExpressionStaticBoolParameter.h"
#include "Materials/MaterialExpressionStaticSwitchParameter.h"
#include "Materials/MaterialExpressionStaticComponentMaskParameter.h"
#include "Materials/MaterialExpressionSubsurfaceMediumMaterialOutput.h"
#include "Materials/MaterialExpressionVectorParameter.h"
#include "Materials/MaterialExpressionDoubleVectorParameter.h"
#include "Materials/MaterialExpressionParticleColor.h"
#include "Materials/MaterialExpressionParticleDirection.h"
#include "Materials/MaterialExpressionParticleMacroUV.h"
#include "Materials/MaterialExpressionParticleMotionBlurFade.h"
#include "Materials/MaterialExpressionParticleRandom.h"
#include "Materials/MaterialExpressionParticlePositionWS.h"
#include "Materials/MaterialExpressionParticleRadius.h"
#include "Materials/MaterialExpressionParticleRelativeTime.h"
#include "Materials/MaterialExpressionParticleSize.h"
#include "Materials/MaterialExpressionParticleSpriteRotation.h"
#include "Materials/MaterialExpressionParticleSpeed.h"
#include "Materials/MaterialExpressionPerInstanceFadeAmount.h"
#include "Materials/MaterialExpressionPerInstanceRandom.h"
#include "Materials/MaterialExpressionPerInstanceCustomData.h"
#include "Materials/MaterialExpressionPixelDepth.h"
#include "Materials/MaterialExpressionPixelNormalWS.h"
#include "Materials/MaterialExpressionPostVolumeUserFlagTest.h"
#include "Materials/MaterialExpressionPower.h"
#include "Materials/MaterialExpressionPreSkinnedNormal.h"
#include "Materials/MaterialExpressionPreSkinnedPosition.h"
#include "Materials/MaterialExpressionQualitySwitch.h"
#include "Materials/MaterialExpressionShadingPathSwitch.h"
#include "Materials/MaterialExpressionReflectionVectorWS.h"
#include "Materials/MaterialExpressionRotateAboutAxis.h"
#include "Materials/MaterialExpressionRotator.h"
#include "Materials/MaterialExpressionRound.h"
#include "Materials/MaterialExpressionRuntimeVirtualTextureCustomData.h"
#include "Materials/MaterialExpressionRuntimeVirtualTextureOutput.h"
#include "Materials/MaterialExpressionRuntimeVirtualTextureReplace.h"
#include "Materials/MaterialExpressionRuntimeVirtualTextureSample.h"
#include "Materials/MaterialExpressionRuntimeVirtualTextureSampleParameter.h"
#include "Materials/MaterialExpressionVirtualTextureFeatureSwitch.h"
#include "Materials/MaterialExpressionSaturate.h"
#include "Materials/MaterialExpressionSceneColor.h"
#include "Materials/MaterialExpressionSceneDepth.h"
#include "Materials/MaterialExpressionSceneDepthWithoutWater.h"
#include "Materials/MaterialExpressionSceneTexelSize.h"
#include "Materials/MaterialExpressionSceneTexture.h"
#include "Materials/MaterialExpressionScreenPosition.h"
#include "Materials/MaterialExpressionShadingModel.h"
#include "Materials/MaterialExpressionSine.h"
#include "Materials/MaterialExpressionSmoothStep.h"
#include "Materials/MaterialExpressionSingleLayerWaterMaterialOutput.h"
#include "Materials/MaterialExpressionThinTranslucentMaterialOutput.h"
#include "Materials/MaterialExpressionFirstPersonOutput.h"
#include "Materials/MaterialExpressionSobol.h"
#include "Materials/MaterialExpressionSpeedTree.h"
#include "Materials/MaterialExpressionSphereMask.h"
#include "Materials/MaterialExpressionSphericalParticleOpacity.h"
#include "Materials/MaterialExpressionSquareRoot.h"
#include "Materials/MaterialExpressionSRGBColorToWorkingColorSpace.h"
#include "Materials/MaterialExpressionStaticBool.h"
#include "Materials/MaterialExpressionStaticSwitch.h"
#include "Materials/MaterialExpressionStep.h"
#include "Materials/MaterialExpressionSubtract.h"
#include "Materials/MaterialExpressionTangent.h"
#include "Materials/MaterialExpressionTangentOutput.h"
#include "Materials/MaterialExpressionTemporalSobol.h"
#include "Materials/MaterialExpressionTextureBase.h"
#include "Materials/MaterialExpressionTextureObject.h"
#include "Materials/MaterialExpressionSwitch.h"
#include "Materials/MaterialExpressionTextureSample.h"
#include "Materials/MaterialExpressionParticleSubUV.h"
#include "Materials/MaterialExpressionParticleSubUVProperties.h"
#include "Materials/MaterialExpressionTextureCollection.h"
#include "Materials/MaterialExpressionTextureCollectionParameter.h"
#include "Materials/MaterialExpressionTextureSampleParameter.h"
#include "Materials/MaterialExpressionTextureObjectFromCollection.h"
#include "Materials/MaterialExpressionTextureObjectParameter.h"
#include "Materials/MaterialExpressionTextureSampleParameter2D.h"
#include "Materials/MaterialExpressionAntialiasedTextureMask.h"
#include "Materials/MaterialExpressionTextureSampleParameterSubUV.h"
#include "Materials/MaterialExpressionTextureSampleParameterCube.h"
#include "Materials/MaterialExpressionTextureSampleParameter2DArray.h"
#include "Materials/MaterialExpressionTextureSampleParameterCubeArray.h"
#include "Materials/MaterialExpressionTextureSampleParameterVolume.h"
#include "Materials/MaterialExpressionTextureCoordinate.h"
#include "Materials/MaterialExpressionTime.h"
#include "Materials/MaterialExpressionDeltaTime.h"
#include "Materials/MaterialExpressionTransform.h"
#include "Materials/MaterialExpressionTransformPosition.h"
#include "Materials/MaterialExpressionTruncate.h"
#include "Materials/MaterialExpressionTruncateLWC.h"
#include "Materials/MaterialExpressionTwoSidedSign.h"
#include "Materials/MaterialExpressionUserSceneTexture.h"
#include "Materials/MaterialExpressionVertexColor.h"
#include "Materials/MaterialExpressionVertexNormalWS.h"
#include "Materials/MaterialExpressionVertexTangentWS.h"
#include "Materials/MaterialExpressionViewProperty.h"
#include "Materials/MaterialExpressionIsOrthographic.h"
#include "Materials/MaterialExpressionViewSize.h"
#include "Materials/MaterialExpressionVolumetricAdvancedMaterialInput.h"
#include "Materials/MaterialExpressionVolumetricAdvancedMaterialOutput.h"
#include "Materials/MaterialExpressionWorldPosition.h"
#include "Materials/MaterialExpressionDistanceToNearestSurface.h"
#include "Materials/MaterialExpressionDistanceFieldGradient.h"
#include "Materials/MaterialExpressionDistanceFieldApproxAO.h"
#include "Materials/MaterialExpressionClearCoatNormalCustomOutput.h"
#include "Materials/MaterialExpressionAtmosphericLightVector.h"
#include "Materials/MaterialExpressionAtmosphericLightColor.h"
#include "Materials/MaterialExpressionSkyAtmosphereLightIlluminance.h"
#include "Materials/MaterialExpressionSkyAtmosphereLightDirection.h"
#include "Materials/MaterialExpressionSkyAtmosphereViewLuminance.h"
#include "Materials/MaterialExpressionSkyLightEnvMapSample.h"
#include "Materials/MaterialExpressionMaterialLayerOutput.h"
#include "Materials/MaterialExpressionCurveAtlasRowParameter.h"
#include "Materials/MaterialExpressionMapARPassthroughCameraUV.h"
#include "Materials/MaterialExpressionShaderStageSwitch.h"
#include "Materials/MaterialExpressionReflectionCapturePassSwitch.h"
#include "Materials/MaterialExpressionSubstrate.h"
#include "Materials/MaterialExpressionSamplePhysicsField.h"
#include "Materials/MaterialExpressionIfThenElse.h"
#include "Materials/MaterialExpressionGenericConstant.h"
#include "Materials/MaterialExpressionSparseVolumeTextureBase.h"
#include "Materials/MaterialExpressionSparseVolumeTextureObject.h"
#include "Materials/MaterialExpressionSparseVolumeTextureSample.h"
#include "Materials/MaterialExpressionIsFirstPerson.h"
#include "Materials/MaterialExternalCodeRegistry.h"
#include "Materials/MaterialExpressionRecordTextureStreamingInfo.h"
#include "Materials/MaterialExpressionOperator.h"
#include "Materials/MaterialExpressionAggregate.h"
#include "Materials/MaterialExpressionTemporalResponsivenessOutput.h"
#include "Materials/MaterialExpressionMotionVectorWorldOffsetOutput.h"
#include "EditorSupportDelegates.h"
#include "Materials/MaterialExpressionVertexInterpolator.h"
#include "Materials/MaterialInstanceConstant.h"
#include "Curves/CurveLinearColorAtlas.h"
#include "Curves/CurveLinearColor.h"
#include "MaterialExpressionSettings.h"
#include "UObject/ObjectEditorOptionalSupport.h"

Namespaces

namespace  CookDeterminism
 
namespace  MaterialFunctionInterface
 

Macros

#define LOCTEXT_NAMESPACE   "MaterialExpression"
 
#define SWAP_REFERENCE_TO(ExpressionInput, ToBeRemovedExpression, ToReplaceWithExpression)
 
#define GET_SET_MA_MATERIALATTRIBUTESINDEX   0
 

Enumerations

enum class  CookDeterminism::ESeed : uint32 {
  CookDeterminism::Expression = 0 , CookDeterminism::Parameter , CookDeterminism::InterfaceInit , CookDeterminism::InterfaceDuplicate ,
  CookDeterminism::InterfacePostLoad , CookDeterminism::Compile , CookDeterminism::FunctionInput , CookDeterminism::FunctionOutput ,
  CookDeterminism::RerouteVariable , CookDeterminism::RerouteColor
}
 

Functions

FLinearColor CookDeterminism::MakeRandomColor (FStringView Str, ESeed Seed)
 
FGuid CookDeterminism::NewGuid (FStringView Str, ESeed Seed)
 
void CookDeterminism::LogWarningIfCooking (FStringView Message)
 
bool IsAllowedExpressionType (const UClass *Class, const bool bMaterialFunction)
 
void ConvertToMultilineToolTip (const FString &InToolTip, const int32 TargetLineLength, TArray< FString > &OutToolTip)
 
ENGINE_API void GetMaterialValueTypeDescriptions (const uint32 MaterialValueType, TArray< FText > &OutDescriptions)
 
ENGINE_API void GetMaterialValueTypeDescriptions (const EMaterialValueType MaterialValueType, TArray< FText > &OutDescriptions)
 
bool CanConnectMaterialValueTypes (const uint32 InputType, const uint32 OutputType)
 
bool CanConnectMaterialValueTypes (const EMaterialValueType InputType, const EMaterialValueType OutputType)
 
int32 CompileShadingModelBlendFunction (FMaterialCompiler *Compiler, const int32 A, const int32 B, const int32 Alpha)
 
int32 CompileSubstrateBlendFunction (FMaterialCompiler *Compiler, const int32 A, const int32 B, const int32 Alpha)
 
FString MaterialFunctionInterface::GetEditorOnlyDataName (const TCHAR *InMaterialName)
 
uint32 GetMaterialExpressionOperatorArity (EMaterialExpressionOperatorKind Operator)
 

Macro Definition Documentation

◆ GET_SET_MA_MATERIALATTRIBUTESINDEX

#define GET_SET_MA_MATERIALATTRIBUTESINDEX   0

◆ LOCTEXT_NAMESPACE

#define LOCTEXT_NAMESPACE   "MaterialExpression"

◆ SWAP_REFERENCE_TO

#define SWAP_REFERENCE_TO (   ExpressionInput,
  ToBeRemovedExpression,
  ToReplaceWithExpression 
)
Value:
if( ExpressionInput.Expression == ToBeRemovedExpression ) \
{ \
ExpressionInput.Expression = ToReplaceWithExpression; \
}
StaticCastSharedRef
UE_FORCEINLINE_HINT TSharedRef< CastToType, Mode > StaticCastSharedRef(TSharedRef< CastFromType, Mode > const &InSharedRef)
Definition SharedPointer.h:127

Function Documentation

◆ CanConnectMaterialValueTypes() [1/2]

bool CanConnectMaterialValueTypes ( const EMaterialValueType  InputType,
const EMaterialValueType  OutputType 
)

◆ CanConnectMaterialValueTypes() [2/2]

bool CanConnectMaterialValueTypes ( const uint32  InputType,
const uint32  OutputType 
)

Check whether a combination of EMaterialValueType flags can be connected

◆ CompileShadingModelBlendFunction()

int32 CompileShadingModelBlendFunction ( FMaterialCompiler *  Compiler,
const int32  A,
const int32  B,
const int32  Alpha 
)

Compile a select "blend" between ShadingModels

Parameters
CompilerThe compiler to add code to
ASelect A if Alpha is less than 0.5f
BSelect B if Alpha is greater or equal to 0.5f
AlphaBland factor [0..1]
Returns
Index to a new code chunk

◆ CompileSubstrateBlendFunction()

int32 CompileSubstrateBlendFunction ( FMaterialCompiler *  Compiler,
const int32  A,
const int32  B,
const int32  Alpha 
)

Compile a special blend function for Substrate when blending material attribute

Parameters
CompilerThe compiler to add code to
ForegroundEntry A, has a bigger impact when Alpha is close to 0
BackgroundEntry B, has a bigger impact when Alpha is close to 1
AlphaBlend factor [0..1], when 0
Returns
Index to a new code chunk

◆ ConvertToMultilineToolTip()

void ConvertToMultilineToolTip ( const FString &  InToolTip,
const int32  TargetLineLength,
TArray< FString > &  OutToolTip 
)

Parses a string into multiple lines, for use with tooltips.

◆ GetMaterialExpressionOperatorArity()

uint32 GetMaterialExpressionOperatorArity ( EMaterialExpressionOperatorKind  Operator)

◆ GetMaterialValueTypeDescriptions() [1/2]

ENGINE_API void GetMaterialValueTypeDescriptions ( const EMaterialValueType  MaterialValueType,
TArray< FText > &  OutDescriptions 
)
extern

◆ GetMaterialValueTypeDescriptions() [2/2]

ENGINE_API void GetMaterialValueTypeDescriptions ( const uint32  MaterialValueType,
TArray< FText > &  OutDescriptions 
)
extern

Given a combination of EMaterialValueType flags, get text descriptions of all types

◆ IsAllowedExpressionType()

bool IsAllowedExpressionType ( const UClass *  Class,
const bool  bMaterialFunction 
)

Returns whether the given expression class is allowed.