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  3. UMaterialExpressionSubstrateSlabBSDF

UMaterialExpressionSubstrateSlabBSDF

API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/Materials

Inheritance Hierarchy

References

   
Module Engine
Header /Engine/Source/Runtime/Engine/Classes/Materials/MaterialExpressionSubstrate.h
Include #include "Materials/MaterialExpressionSubstrate.h"

Syntax

UCLASS (MinimalAPI, CollapseCategories, HideCategories=Object, DisplayName="Substrate Slab")  
class UMaterialExpressionSubstrateSlabBSDF : public UMaterialExpressionSubstrateBSDF

Variables

  Type Name Description
Public variable UProperty FExpressionInput Anisotropy Controls the anisotropy factor of the roughness.
Public variable UProperty Category, EditAnywhere, Meta uint32: 1 bUseSSSDiffusion Whether to use light diffusion (i.e., SSS diffusion) or wrap-approximation for material with scattering behavior.
Public variable UProperty FExpressionInput DiffuseAlbedo Defines the diffused albedo, the percentage of light reflected as diffuse from the surface.
Public variable UProperty FExpressionInput EmissiveColor Emissive color on top of the surface (type = float3, unit = luminance, default = 0)
Public variable UProperty FExpressionInput F0 Defines the color and brightness of the specular highlight where the surface is facing the camera.
Public variable UProperty FExpressionInput F90 Defines the color of the specular highlight where the surface normal is 90 degrees from the view direction.
Public variable UProperty FExpressionInput FuzzAmount The amount of fuzz on top of the surface used to simulate cloth-like appearance.
Public variable UProperty FExpressionInput FuzzColor The base color of the fuzz.
Public variable UProperty FExpressionInput FuzzRoughness Controls how rough the Fuzz layer is.
Public variable UProperty FExpressionInput GlintUV The parameterization of the surface required to position glints on a surface.
Public variable UProperty FExpressionInput GlintValue This represent the logarithm of the micro facet density.
Public variable UProperty FExpressionInput Normal Take the surface normal as input.
Public variable UProperty FExpressionInput Roughness Controls how rough the Material is.
Public variable UProperty FExpressionInput SecondRoughness Controls the roughness of a secondary specular lobe.
Public variable UProperty FExpressionInput SecondRoughnessWeight The weight of the second specular lobe using SecondRoughness.
Public variable UProperty Category, EditAnywhere, Meta BlueprintReadOnly TObjectPtr< class USpecularProfile > SpecularProfile SpecularProfile, for modulating specular appearance and simulating more complex visuals such as iridescence.
Public variable UProperty FExpressionInput SSSMFP Chromatic mean free path .
Public variable UProperty FExpressionInput SSSMFPScale Scale the mean free path radius of the SSS profile according to a value between 0 and 1.
Public variable UProperty FExpressionInput SSSPhaseAnisotropy Phase function anisotropy.
Public variable UProperty Category, EditAnywhere, Meta BlueprintReadOnly TObjectPtr< class USubsurfaceProfile > SubsurfaceProfile SubsurfaceProfile, for Screen Space Subsurface Scattering.
Public variable UProperty FExpressionInput Tangent Take a surface tangent as input.

Constructors

  Type Name Description
Public function    

Functions

  Type Name Description
Public function Const FSubstrateMaterialComplexity  
Public function Const bool  
Public function Const bool  
Public function Const bool

HasFuzz ()

  
Public function Const bool  
Public function Const bool  
Public function Const bool  
Public function Const bool  
Public function Const bool  
Public function Const bool

HasSSS ()

  
Public function Const bool  

Overridden from UMaterialExpression

  Type Name Description
Public function Virtual int32

Compile ( FMaterialCompiler* Compiler,
int32 OutputIndex
)

 Create the new shader code chunk needed for the Abs expression
Public function Virtual void

GatherSubstrateMaterialInfo ( FSubstrateMaterialInfo& SubstrateMaterialInfo,
int32 OutputIndex
)

 Recursively parse nodes outputing Substrate material in order to gather all the possible shading models used in a material graph output a Substrate material.
Public function Virtual Const void

GetCaption ( TArray< FString >& OutCaptions
)

 Returns the text to display on the material expression (in the material editor).
Public function Virtual void

GetConnectorToolTip ( int32 InputIndex,
int32 OutputIndex,
TArray< FString >& OutToolTip
)

 Get a tooltip for the specified connector.
Public function Virtual void

GetExpressionToolTip ( TArray< FString >& OutToolTip
)

 Get a tooltip for the expression itself.
Public function Virtual Const FName

GetInputName ( int32 InputIndex
)

  
Public function Virtual uint32

GetInputType ( int32 InputIndex
)

  
Public function Virtual uint32

GetOutputType ( int32 OutputIndex
)

  
Public function Virtual bool Marks certain expression types as outputting Substrate material.
Public function Virtual FSubstrateOperator * A starta material is a tree with FrontMateiral being its root and BSDF being leaves, with operators in the middle.

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