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  3. UMeshAttributePaintTool

UMeshAttributePaintTool

[UMeshAttributePaintTool](API\Plugins\MeshModelingToolsExp\UMeshAttributePaintTool) paints single-channel float attributes on a MeshDescription.

API > API/Plugins > API/Plugins/MeshModelingToolsExp

Inheritance Hierarchy

References

   
Module MeshModelingToolsExp
Header /Engine/Plugins/Experimental/MeshModelingToolsetExp/Source/MeshModelingToolsExp/Public/MeshAttributePaintTool.h
Include #include "MeshAttributePaintTool.h"

Syntax

UCLASS ()  
class UMeshAttributePaintTool :  
    public UDynamicMeshBrushTool ,  
    public IInteractiveToolManageGeometrySelectionAPI

Remarks

UMeshAttributePaintTool paints single-channel float attributes on a MeshDescription.

Variables

  Type Name Description
Protected variable TUniquePtr< TIndexedValuesChangeBuilder< float, FMeshAttributePaintChange > > ActiveChangeBuilder  
Protected variable UProperty TObjectPtr< UMeshAttributePaintToolProperties > AttribProps  
Protected variable int32 AttributeBufferCount  
Protected variable TArray< FAttributeData > Attributes  
Protected variable TUniquePtr< IMeshVertexAttributeSource > AttributeSource  
Protected variable bool bHavePendingAction  
Protected variable bool bInRemoveStroke  
Protected variable bool bInSmoothStroke  
Protected variable UProperty TObjectPtr< UMeshAttributePaintBrushOperationProperties > BrushActionProps  
Protected variable bool bStampPending  
Protected variable bool bVisibleAttributeValid  
Protected variable TUniquePtr< FFloatAttributeColorMapper > ColorMapper  
Protected variable int32 CurrentAttributeIndex  
Protected variable UE::Geometry::FInterval1f CurrentValueRange  
Protected variable TUniquePtr< FMeshDescription > EditedMesh  
Protected variable FBrushStampData LastStamp  
Protected variable EMeshAttributePaintToolActions PendingAction  
Protected variable int32 PendingNewSelectedIndex  
Protected variable TArray< int > PreviewBrushROI  
Protected variable TValueWatcher< int32 > SelectedAttributeWatcher  
Protected variable FBrushStampData StartStamp  
Protected variable UWorld * TargetWorld  
Protected variable UE::Geometry::TDynamicVerticesOctree3< FDynamicMesh3 > VerticesOctree  

Functions

  Type Name Description
Protected function Virtual void  
Protected function Virtual void

ApplyStamp ( const FBrushStampData& Stamp
)

  
Protected function Virtual void

ApplyStamp_FloodFill ( const FBrushStampData& Stamp,
FStampActionData& ActionData
)

  
Protected function Virtual void

ApplyStamp_Paint ( const FBrushStampData& Stamp,
FStampActionData& ActionData
)

  
Protected function void  
Protected function double

CalculateBrushFalloff ( double Distance
)

  
Protected function void

CalculateVertexROI ( const FBrushStampData& Stamp,
TArray< int >& VertexROI
)

  
Protected function TUniquePtr< FMeshAttributePaintChange >  
Protected function void

ExternalUpdateValues ( int32 AttribIndex,
const TArray< int32 >& VertexIndices,
const TArray< float >& NewValues
)

  
Public function UE::Geometry::TDynamicVerticesOctree3< FDynamicMesh3 > &  
Protected function void  
Public function Virtual void  
Public function Virtual void  
Public function Virtual void

SetWorld ( UWorld* World
)

  
Protected function void  
Protected function void

UpdateSelectedAttribute ( int32 NewSelectedIndex
)

  
Protected function void  

Overridden from UDynamicMeshBrushTool

  Type Name Description
Protected function Virtual void

OnShutdown ( EToolShutdownType ShutdownType
)

 Subclasses can override these to customize behavior

Overridden from UMeshSurfacePointTool

  Type Name Description
Public function Virtual void

OnBeginDrag ( const FRay& Ray
)

 UMeshSurfacePointTool implementation.
Public function Virtual void

OnEndDrag ( const FRay& Ray
)

 This function is called when the user releases the button driving a click-drag-release interaction
Public function Virtual void

OnUpdateDrag ( const FRay& Ray
)

 This function is called each frame that the user is in a click-drag-release interaction

Overridden from UInteractiveTool

  Type Name Description
Public function Virtual Const bool  
Public function Virtual Const bool  
Public function Virtual void

OnTick ( float DeltaTime
)

 Allow the Tool to do any necessary processing on Tick
Public function Virtual void Override this function to register the set of Actions this Tool supports, using FInteractiveToolActionSet::RegisterAction.
Public function Virtual void

Setup ()

 UInteractiveTool.

Overridden from IHoverBehaviorTarget

  Type Name Description
Public function Virtual bool

OnUpdateHover ( const FInputDeviceRay& DevicePos
)

 Update active hover sequence with new input position

Overridden from IInteractiveToolManageGeometrySelectionAPI

  Type Name Description
Public function Virtual bool IInteractiveToolManageGeometrySelectionAPI this tool won't update external geometry selection or change selection-relevant mesh IDs.

Classes

  Type Name Description
Protected struct FAttributeData    
Protected struct FStampActionData    

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