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Materials

Unreal Engine C++ API Reference > Runtime > Engine

Classes

  Type Name Description
Public class AMaterialInstanceActor    
Public struct FCollectionParameterBase Base struct for collection parameters  
Public struct FCollectionScalarParameter A scalar parameter  
Public struct FCollectionVectorParameter A vector parameter  
Public class FColoredMaterialRenderProxy An material render proxy which overrides the material's Color vector parameter.  
Public class FColoredTexturedMaterialRenderProxy An material render proxy which overrides the material's Color vector and Texture parameter (mixed together).  
Public struct FCompositeReroute Collection of pins used for tunneling between graphs.  
Public struct FCustomDefine    
Public struct FCustomInput    
Public struct FCustomOutput    
Public struct FDataDrivenShaderPlatformInfoInput    
Public struct FDoubleVectorParameterValue Editable vector parameter.  
Public struct FExpressionExecOutput    
Public struct FExpressionExecOutputEntry    
Public struct FFontParameterValue Editable font parameter.  
Public struct FFunctionExpressionInput Struct that stores information about a function input which is needed to maintain connections and implement the function call.  
Public struct FFunctionExpressionOutput Struct that stores information about a function output which is needed to maintain connections and implement the function call.  
Public class FLightingDensityMaterialRenderProxy An material render proxy which overrides the material's Color and Lightmap resolution vector parameter.  
Public struct FLightmassMaterialInterfaceSettings UMaterial interface settings for Lightmass  
Public struct FMaterialAnalysisResult Holds data about what is used in the shader graph of a specific material property or custom output  
Public class FMaterialAttributeDefinitionMap Material property to attribute data mappings  
Public class FMaterialAttributeDefintion Attribute data describing a material property  
Public class FMaterialCustomOutputAttributeDefintion Attribute data describing a material property used for a custom output  
Public struct FMaterialExpressionCollection    
Public struct FMaterialInheritanceChain Holds information about a hierarchy of materials  
Public struct FMaterialInputDescription Material input structs.  
Public struct FMaterialInstanceBasePropertyOverrides Properties from the base material that can be overridden in material instances.  
Public struct FMaterialInstanceCachedData    
Public class FMaterialInstanceParameterUpdateContext    
Public struct FMaterialLayersFunctions    
Public struct FMaterialLayersFunctionsEditorOnlyData    
Public struct FMaterialLayersFunctionsID Serializable ID structure for FMaterialLayersFunctions which allows us to deterministically recompile shaders  
Public struct FMaterialLayersFunctionsRuntimeData    
Public struct FMaterialOverrideNanite Storage for nanite material override.  
Public struct FMaterialRelevance The class is only storing bits, initialized to 0 and has an |= operator to provide a combined set of multiple materials (component / mesh)  
Public class FMaterialRenderProxy A material render proxy used by the renderer.  
Public struct FMaterialsWithDirtyUsageFlags Struct used for annotations when a materials 'used with' flags have changed and need saving  
Public struct FMaterialTextureInfo This struct holds data about how a texture is sampled within a material.  
Public class FOverrideSelectionColorMaterialRenderProxy A material render proxy which overrides the selection color  
Public struct FParameterGroupData    
Public struct FRuntimeVirtualTextureParameterValue Editable runtime virtual texture parameter.  
Public struct FScalarParameterAtlasInstanceData Editable scalar parameter.  
Public struct FScalarParameterValue    
Public struct FSparseVolumeTextureParameterValue Editable sparse volume texture parameter.  
Public struct FSwitchCustomInput    
Public struct FTextureParameterValue Editable texture parameter.  
Public struct FUniformExpressionCache Cached uniform expression values.  
Public class FUniformExpressionCacheAsyncUpdateScope Defines a scope to update deferred uniform expression caches using an async task to fill uniform buffers.  
Public struct FUniformExpressionCacheContainer    
Public struct FVectorParameterValue Editable vector parameter.  
Public class UMaterial A Material is an asset which can be applied to a mesh to control the visual look of the scene.  
Public class UMaterialEditorOnlyData    
Public class UMaterialExpression    
Public class UMaterialExpressionAbs Absolute value material expression for user-defined materials  
Public class UMaterialExpressionAbsorptionMediumMaterialOutput Material output expression for setting absorption properties of solid refractive glass (for the Path Tracer Only).  
Public class UMaterialExpressionActorPositionWS    
Public class UMaterialExpressionAdd    
Public class UMaterialExpressionAntialiasedTextureMask    
Public class UMaterialExpressionAppendVector    
Public class UMaterialExpressionArccosine    
Public class UMaterialExpressionArccosineFast    
Public class UMaterialExpressionArcsine    
Public class UMaterialExpressionArcsineFast    
Public class UMaterialExpressionArctangent    
Public class UMaterialExpressionArctangent2    
Public class UMaterialExpressionArctangent2Fast    
Public class UMaterialExpressionArctangentFast    
Public class UMaterialExpressionAtmosphericFogColor    
Public class UMaterialExpressionAtmosphericLightColor    
Public class UMaterialExpressionAtmosphericLightVector    
Public class UMaterialExpressionBentNormalCustomOutput    
Public class UMaterialExpressionBinaryOp    
Public class UMaterialExpressionBlackBody    
Public class UMaterialExpressionBlendMaterialAttributes    
Public class UMaterialExpressionBreakMaterialAttributes    
Public class UMaterialExpressionBumpOffset    
Public class UMaterialExpressionCameraPositionWS    
Public class UMaterialExpressionCameraVectorWS    
Public class UMaterialExpressionCeil    
Public class UMaterialExpressionChannelMaskParameter    
Public class UMaterialExpressionClamp    
Public class UMaterialExpressionClearCoatNormalCustomOutput    
Public class UMaterialExpressionCloudSampleAttribute    
Public class UMaterialExpressionCollectionParameter    
Public class UMaterialExpressionComment    
Public class UMaterialExpressionComponentMask    
Public class UMaterialExpressionComposite Composite (subgraph) expression.  
Public class UMaterialExpressionConstant    
Public class UMaterialExpressionConstant2Vector    
Public class UMaterialExpressionConstant3Vector    
Public class UMaterialExpressionConstant4Vector    
Public class UMaterialExpressionConstantBiasScale    
Public class UMaterialExpressionConstantDouble    
Public class UMaterialExpressionCosine    
Public class UMaterialExpressionCrossProduct    
Public class UMaterialExpressionCurveAtlasRowParameter    
Public class UMaterialExpressionCustom    
Public class UMaterialExpressionCustomOutput    
Public class UMaterialExpressionDataDrivenShaderPlatformInfoSwitch    
Public class UMaterialExpressionDBufferTexture    
Public class UMaterialExpressionDDX    
Public class UMaterialExpressionDDY    
Public class UMaterialExpressionDecalColor    
Public class UMaterialExpressionDecalDerivative    
Public class UMaterialExpressionDecalLifetimeOpacity    
Public class UMaterialExpressionDecalMipmapLevel    
Public class UMaterialExpressionDeltaTime    
Public class UMaterialExpressionDepthFade Scales Opacity by a Linear fade based on SceneDepth, from 0 at PixelDepth to 1 at FadeDistance  
Public class UMaterialExpressionDepthOfFieldFunction    
Public class UMaterialExpressionDeriveNormalZ    
Public class UMaterialExpressionDesaturation    
Public class UMaterialExpressionDistance    
Public class UMaterialExpressionDistanceCullFade    
Public class UMaterialExpressionDistanceFieldApproxAO    
Public class UMaterialExpressionDistanceFieldGradient    
Public class UMaterialExpressionDistanceFieldsRenderingSwitch Material output expression to switch logic according to whether distance fields renderering is supported on this project and feature level.  
Public class UMaterialExpressionDistanceToNearestSurface    
Public class UMaterialExpressionDivide    
Public class UMaterialExpressionDotProduct    
Public class UMaterialExpressionDoubleVectorParameter    
Public class UMaterialExpressionDynamicParameter    
Public class UMaterialExpressionExecBegin    
Public class UMaterialExpressionExecEnd Copyright Epic Games, Inc. All Rights Reserved.  
Public class UMaterialExpressionExponential    
Public class UMaterialExpressionExponential2    
Public class UMaterialExpressionEyeAdaptation Provides access to the EyeAdaptation render target.  
Public class UMaterialExpressionEyeAdaptationInverse Provides access to the EyeAdaptation render target.  
Public class UMaterialExpressionFeatureLevelSwitch    
Public class UMaterialExpressionFloor    
Public class UMaterialExpressionFmod    
Public class UMaterialExpressionFontSample    
Public class UMaterialExpressionFontSampleParameter    
Public class UMaterialExpressionForLoop    
Public class UMaterialExpressionFrac    
Public class UMaterialExpressionFresnel Allows the artists to quickly set up a Fresnel term.  
Public class UMaterialExpressionFunctionInput    
Public class UMaterialExpressionFunctionOutput    
Public class UMaterialExpressionGenericConstant Copyright Epic Games, Inc. All Rights Reserved.  
Public class UMaterialExpressionGetLocal    
Public class UMaterialExpressionGetMaterialAttributes    
Public class UMaterialExpressionGIReplace    
Public class UMaterialExpressionHairAttributes    
Public class UMaterialExpressionHairColor    
Public class UMaterialExpressionHsvToRgb Copyright Epic Games, Inc. All Rights Reserved.  
Public class UMaterialExpressionIf    
Public class UMaterialExpressionIfThenElse    
Public class UMaterialExpressionInverseLinearInterpolate    
Public class UMaterialExpressionIsOrthographic    
Public class UMaterialExpressionLength Copyright Epic Games, Inc. All Rights Reserved.  
Public class UMaterialExpressionLess    
Public class UMaterialExpressionLightmapUVs A material expression that routes LightmapUVs to the material.  
Public class UMaterialExpressionLightmassReplace    
Public class UMaterialExpressionLightVector    
Public class UMaterialExpressionLinearInterpolate    
Public class UMaterialExpressionLogarithm    
Public class UMaterialExpressionLogarithm10    
Public class UMaterialExpressionLogarithm2    
Public class UMaterialExpressionMakeMaterialAttributes    
Public class UMaterialExpressionMapARPassthroughCameraUV A material expression that maps viewport UVs to AR passthrough camera UVs taking into account aspect ratio and device rotation.  
Public class UMaterialExpressionMaterialAttributeLayers    
Public class UMaterialExpressionMaterialFunctionCall    
Public class UMaterialExpressionMaterialLayerOutput    
Public class UMaterialExpressionMaterialProxyReplace    
Public class UMaterialExpressionMax    
Public class UMaterialExpressionMin    
Public class UMaterialExpressionMultiply    
Public class UMaterialExpressionNamedRerouteBase    
Public class UMaterialExpressionNamedRerouteDeclaration    
Public class UMaterialExpressionNamedRerouteUsage    
Public class UMaterialExpressionNaniteReplace    
Public class UMaterialExpressionNoise    
Public class UMaterialExpressionNormalize    
Public class UMaterialExpressionObjectBounds    
Public class UMaterialExpressionObjectLocalBounds    
Public class UMaterialExpressionObjectOrientation    
Public class UMaterialExpressionObjectPositionWS    
Public class UMaterialExpressionObjectRadius    
Public class UMaterialExpressionOneMinus    
Public class UMaterialExpressionPanner    
Public class UMaterialExpressionParameter    
Public class UMaterialExpressionParticleColor    
Public class UMaterialExpressionParticleDirection    
Public class UMaterialExpressionParticleMacroUV This UV node generates texture coordinates in view space centered on the particle system's MacroUVPosition, with tiling controlled by the particle system's MacroUVRadius.  
Public class UMaterialExpressionParticleMotionBlurFade    
Public class UMaterialExpressionParticlePositionWS    
Public class UMaterialExpressionParticleRadius    
Public class UMaterialExpressionParticleRandom    
Public class UMaterialExpressionParticleRelativeTime    
Public class UMaterialExpressionParticleSize    
Public class UMaterialExpressionParticleSpeed    
Public class UMaterialExpressionParticleSpriteRotation    
Public class UMaterialExpressionParticleSubUV    
Public class UMaterialExpressionParticleSubUVProperties    
Public class UMaterialExpressionPathTracingBufferTexture Path tracing buffer is only accessable in postprocess material.  
Public class UMaterialExpressionPathTracingQualitySwitch    
Public class UMaterialExpressionPathTracingRayTypeSwitch    
Public class UMaterialExpressionPerInstanceCustomData    
Public class UMaterialExpressionPerInstanceCustomData3Vector    
Public class UMaterialExpressionPerInstanceFadeAmount    
Public class UMaterialExpressionPerInstanceRandom    
Public class UMaterialExpressionPinBase    
Public class UMaterialExpressionPixelDepth Gives the depth of the current pixel being drawn for use in a material  
Public class UMaterialExpressionPixelNormalWS    
Public class UMaterialExpressionPower    
Public class UMaterialExpressionPrecomputedAOMask A material expression that allows access to the precomputed AO mask generated when bGenerateAmbientOcclusionMaterialMask is enabled in Lightmass World settings.  
Public class UMaterialExpressionPreSkinnedLocalBounds    
Public class UMaterialExpressionPreSkinnedNormal    
Public class UMaterialExpressionPreSkinnedPosition    
Public class UMaterialExpressionPreviousFrameSwitch    
Public class UMaterialExpressionQualitySwitch    
Public class UMaterialExpressionRayTracingQualitySwitch    
Public class UMaterialExpressionReflectionCapturePassSwitch    
Public class UMaterialExpressionReflectionVectorWS    
Public class UMaterialExpressionReroute Absolute value material expression for user-defined materials  
Public class UMaterialExpressionRerouteBase    
Public class UMaterialExpressionRgbToHsv Copyright Epic Games, Inc. All Rights Reserved.  
Public class UMaterialExpressionRotateAboutAxis    
Public class UMaterialExpressionRotator    
Public class UMaterialExpressionRound    
Public class UMaterialExpressionRuntimeVirtualTextureOutput Material output expression for writing to a runtime virtual texture.  
Public class UMaterialExpressionRuntimeVirtualTextureReplace Material output expression to switch logic for a path that renders to runtime virtual texture pages.  
Public class UMaterialExpressionRuntimeVirtualTextureSample Material expression for sampling from a runtime virtual texture.  
Public class UMaterialExpressionRuntimeVirtualTextureSampleParameter    
Public class UMaterialExpressionSamplePhysicsIntegerField    
Public class UMaterialExpressionSamplePhysicsScalarField    
Public class UMaterialExpressionSamplePhysicsVectorField Material expresions to sample the global field  
Public class UMaterialExpressionSaturate    
Public class UMaterialExpressionScalarParameter    
Public class UMaterialExpressionSceneColor    
Public class UMaterialExpressionSceneDepth    
Public class UMaterialExpressionSceneDepthWithoutWater    
Public class UMaterialExpressionSceneTexelSize    
Public class UMaterialExpressionSceneTexture    
Public class UMaterialExpressionScreenPosition    
Public class UMaterialExpressionSetLocal    
Public class UMaterialExpressionSetMaterialAttributes    
Public class UMaterialExpressionShaderStageSwitch    
Public class UMaterialExpressionShadingModel    
Public class UMaterialExpressionShadingPathSwitch    
Public class UMaterialExpressionShadowReplace    
Public class UMaterialExpressionSign    
Public class UMaterialExpressionSine    
Public class UMaterialExpressionSingleLayerWaterMaterialOutput Material output expression for writing single layer water volume material properties.  
Public class UMaterialExpressionSkyAtmosphereAerialPerspective    
Public class UMaterialExpressionSkyAtmosphereDistantLightScatteredLuminance    
Public class UMaterialExpressionSkyAtmosphereLightDirection    
Public class UMaterialExpressionSkyAtmosphereLightDiskLuminance    
Public class UMaterialExpressionSkyAtmosphereLightIlluminance    
Public class UMaterialExpressionSkyAtmosphereViewLuminance    
Public class UMaterialExpressionSkyLightEnvMapSample    
Public class UMaterialExpressionSmoothStep    
Public class UMaterialExpressionSobol    
Public class UMaterialExpressionSparseVolumeTextureBase    
Public class UMaterialExpressionSparseVolumeTextureObject    
Public class UMaterialExpressionSparseVolumeTextureObjectParameter    
Public class UMaterialExpressionSparseVolumeTextureSample Material expression for sampling from a runtime virtual texture.  
Public class UMaterialExpressionSparseVolumeTextureSampleParameter    
Public class UMaterialExpressionSpeedTree    
Public class UMaterialExpressionSphereMask    
Public class UMaterialExpressionSphericalParticleOpacity    
Public class UMaterialExpressionSquareRoot    
Public class UMaterialExpressionStaticBool    
Public class UMaterialExpressionStaticBoolParameter    
Public class UMaterialExpressionStaticComponentMaskParameter    
Public class UMaterialExpressionStaticSwitch    
Public class UMaterialExpressionStaticSwitchParameter    
Public class UMaterialExpressionStep    
Public class UMaterialExpressionStrataAdd    
Public class UMaterialExpressionStrataBSDF UMaterialExpressionStrataBSDF can only be used for Substrate nodes ouputing StrataData that would need a preview,.  
Public class UMaterialExpressionStrataConvertToDecal    
Public class UMaterialExpressionStrataEyeBSDF    
Public class UMaterialExpressionStrataHairBSDF    
Public class UMaterialExpressionStrataHazinessToSecondaryRoughness    
Public class UMaterialExpressionStrataHorizontalMixing    
Public class UMaterialExpressionStrataLegacyConversion    
Public class UMaterialExpressionStrataLightFunction    
Public class UMaterialExpressionStrataMetalnessToDiffuseAlbedoF0    
Public class UMaterialExpressionStrataPostProcess    
Public class UMaterialExpressionStrataSimpleClearCoatBSDF    
Public class UMaterialExpressionStrataSingleLayerWaterBSDF    
Public class UMaterialExpressionStrataSlabBSDF    
Public class UMaterialExpressionStrataThinFilm    
Public class UMaterialExpressionStrataTransmittanceToMFP    
Public class UMaterialExpressionStrataUI    
Public class UMaterialExpressionStrataUnlitBSDF    
Public class UMaterialExpressionStrataUtilityBase    
Public class UMaterialExpressionStrataVerticalLayering    
Public class UMaterialExpressionStrataVolumetricFogCloudBSDF    
Public class UMaterialExpressionStrataWeight    
Public class UMaterialExpressionSubsurfaceMediumMaterialOutput Material output expression for setting the mean free path and scattering distribution properties of subsurface profile (for the Path Tracer Only).  
Public class UMaterialExpressionSubtract    
Public class UMaterialExpressionSwitch    
Public class UMaterialExpressionTangent    
Public class UMaterialExpressionTangentOutput    
Public class UMaterialExpressionTemporalSobol    
Public class UMaterialExpressionTextureBase    
Public class UMaterialExpressionTextureCoordinate    
Public class UMaterialExpressionTextureObject    
Public class UMaterialExpressionTextureObjectParameter Node which creates a texture parameter and outputs the texture object itself, instead of sampling the texture first.  
Public class UMaterialExpressionTextureProperty    
Public class UMaterialExpressionTextureSample    
Public class UMaterialExpressionTextureSampleParameter    
Public class UMaterialExpressionTextureSampleParameter2D    
Public class UMaterialExpressionTextureSampleParameter2DArray Copyright Epic Games, Inc. All Rights Reserved.  
Public class UMaterialExpressionTextureSampleParameterCube    
Public class UMaterialExpressionTextureSampleParameterCubeArray    
Public class UMaterialExpressionTextureSampleParameterSubUV    
Public class UMaterialExpressionTextureSampleParameterVolume    
Public class UMaterialExpressionThinTranslucentMaterialOutput Material output expression for setting absorption properties of thin translucent materials.  
Public class UMaterialExpressionTime    
Public class UMaterialExpressionTransform    
Public class UMaterialExpressionTransformPosition    
Public class UMaterialExpressionTruncate    
Public class UMaterialExpressionTruncateLWC    
Public class UMaterialExpressionTwoSidedSign    
Public class UMaterialExpressionVectorNoise    
Public class UMaterialExpressionVectorParameter    
Public class UMaterialExpressionVertexColor    
Public class UMaterialExpressionVertexInterpolator    
Public class UMaterialExpressionVertexNormalWS    
Public class UMaterialExpressionVertexTangentWS    
Public class UMaterialExpressionViewProperty    
Public class UMaterialExpressionViewSize    
Public class UMaterialExpressionVirtualTextureFeatureSwitch Material output expression to switch logic according to whether virtual texturing is supported on this project, platform and feature level.  
Public class UMaterialExpressionVolumetricAdvancedMaterialInput    
Public class UMaterialExpressionVolumetricAdvancedMaterialOutput Material output expression for writing advanced volumetric material properties.  
Public class UMaterialExpressionVolumetricCloudEmptySpaceSkippingInput    
Public class UMaterialExpressionVolumetricCloudEmptySpaceSkippingOutput USed to help the cloud system to fast skip empty space areas when ray marching.  
Public class UMaterialExpressionWhileLoop    
Public class UMaterialExpressionWorldPosition    
Public class UMaterialFunction A Material Function is a collection of material expressions that can be reused in different materials  
Public class UMaterialFunctionEditorOnlyData    
Public class UMaterialFunctionInstance A material function instance defines parameter overrides for a parent material function.  
Public class UMaterialFunctionInterface A Material Function is a collection of material expressions that can be reused in different materials  
Public class UMaterialFunctionInterfaceEditorOnlyData    
Public class UMaterialFunctionMaterialLayer Specialized Material Function that acts as a layer  
Public class UMaterialFunctionMaterialLayerBlend Specialized Material Function that acts as a blend  
Public class UMaterialFunctionMaterialLayerBlendInstance Specialized Material Function Instance that instances a blend  
Public class UMaterialFunctionMaterialLayerInstance Specialized Material Function Instance that instances a layer  
Public class UMaterialInstance    
Public class UMaterialInstanceConstant Material Instances may be used to change the appearance of a material without incurring an expensive recompilation of the material.  
Public class UMaterialInstanceDynamic    
Public class UMaterialInstanceEditorOnlyData    
Public class UMaterialInterface    
Public class UMaterialInterfaceEditorOnlyData    
Public class UMaterialParameterCollection Asset class that contains a list of parameter names and their default values.  
Public class UMaterialParameterCollectionInstance Class that stores per-world instance parameter data for a given UMaterialParameterCollection resource.  

Enums

  Type Name Description
Public enum EChannelMaskParameterColor::Type    
Public enum EMaterialAttributeBlend::Type    
Public enum EMaterialSceneAttributeInputMode::Type    

Functions

  Type Name Description
Public function void

MaterialInstance_Private::FindClosestExpressionByGUIDRecursive ( const FName& InName,
const FGuid& InGUID,
TConstArrayView< TObjectPtr< UMaterialExpression >> InMaterialExpression,
ExpressionType*& OutExpression
)

 Workaround - Similar to base call but evaluates all expressions found, not just the first
Public function bool

MaterialInstance_Private::UpdateParameter_FullTraversal ( ParameterType& Parameter,
UMaterial* ParentMaterial
)

  
Public function bool

MaterialInstance_Private::UpdateParameterSet_FullTraversal ( TArray< ParameterType >& Parameters,
UMaterial* ParentMaterial
)

  
Public function bool

MaterialInstance_Private::UpdateParameterSet_WithCachedData ( EMaterialParameterType ParamTypeEnum,
TArray< ParameterType >& Parameters,
UMaterial* ParentMaterial
)

  

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