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  3. UMaterialGraphNode

UMaterialGraphNode

Unreal Engine C++ API Reference > Editor > UnrealEd > MaterialGraph

Inheritance Hierarchy

References

   
Module UnrealEd
Header /Engine/Source/Editor/UnrealEd/Classes/MaterialGraph/MaterialGraphNode.h
Include #include "MaterialGraph/MaterialGraphNode.h"

Syntax

class UMaterialGraphNode : public UMaterialGraphNode_Base

Variables

  Type Name Description
Public variable bool bIsErrorExpression Set to true if this expression causes an error in the material
Public variable bool bIsPreviewExpression Set to true if this expression is currently being previewed
Public variable bool bPreviewNeedsUpdate Set to true when Expression Preview compiles, so we can update SGraphNode
Public variable FSimpleDelegate InvalidatePreviewMaterialDelegate Called when the preview material attached to this graph node needs to be updated
Public variable FSetMaterialDirty MaterialDirtyDelegate Marks the Material Editor as dirty so that user prompted to apply change
Public variable TObjectPtr< class UMaterialExpression > MaterialExpression Material Expression this node is representing
Public variable FRealtimeStateGetter RealtimeDelegate Checks if Material Editor is in realtime mode, so we update SGraphNode every frame

Constructors

  Type Name Description
Public function  

UMaterialGraphNode ( const FObjectInitializer& ObjectInitializer
)

  

Functions

  Type Name Description
Public function FMaterialRenderProxy * Get the expression preview for this node
Public function Static FName

GetShortenPinName ( const FName PinName
)

 Will return the shorten pin name to use based on long pin name
Public function Virtual void Fix up the node's owner after being copied
Public function void Recreate this node's pins and relink the Graph from the Material

Overridden from UMaterialGraphNode_Base

  Type Name Description
Public function Virtual void Create all of the input pins required
Public function Virtual void Create all of the output pins required
Public function Virtual Const UObject * Gets the object that owns this node, typically either a UMaterial, UMaterialFunction, UMaterialExpression
Public function Virtual Const uint32  

Overridden from UEdGraphNode

  Type Name Description
Public function Virtual Const bool

CanPasteHere ( const UEdGraph* TargetGraph
)

 Determine if this node can live in the specified graph
Public function Virtual Const bool Whether or not this node can be deleted by user action
Public function Virtual Const FString Returns the name of the excerpt to display from the specified external documentation link for the graph node Default behavior is to return the class name (including prefix)
Public function Virtual Const void Gets a list of actions that can be done to this particular node
Public function Virtual Const FText Gets the name of this node, shown in title bar
Public function Virtual Const FLinearColor Gets the draw color of a node's title bar
Public function Virtual Const void

GetPinHoverText ( const UEdGraphPin& Pin,
FString& HoverTextOut
)

 Fetch the hover text for a pin when the graph is being edited.
Public function Virtual Const FText Gets the tooltip to display when over the node
Public function Virtual void Called when something external to this node has changed the connection list of any of the pins in the node
Public function Virtual void

OnCommentBubbleToggled ( bool bInCommentBubbleVisible
)

 Called when the node's comment bubble is toggled
Public function Virtual void

OnRenameNode ( const FString& NewName
)

 Called when this node is being renamed after a successful name validation
Public function Virtual void

OnUpdateCommentText ( const FString& NewComment
)

 Called to replace this nodes comment text
Public function Virtual void Called when the DefaultValue of one of the pins of this node is changed in the editor
Public function Virtual void A chance to initialize a new node; called just once when a new node is created, before AutowireNewNode or AllocateDefaultPins is called.
Public function Virtual void Perform any steps necessary prior to copying a node into the paste buffer

Overridden from UObject

  Type Name Description
Public function Virtual void

PostDuplicate ( bool bDuplicateForPIE
)

 Called after duplication & serialization and before PostLoad.
Public function Virtual void

PostEditChangeProperty ( FPropertyChangedEvent& PropertyChangedEvent
)

 Get the Material value type of an output pin
Public function Virtual void Called after importing property values for this object (paste, duplicate or .t3d import) Allow the object to perform any cleanup for properties which shouldn't be duplicated or are unsupported by the script serialization

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