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  3. ModelingComponents

ModelingComponents

API > API/Plugins

   
Name ModelingComponents
Type Runtime
Part of Plugins Mesh Modeling Toolset
Location /Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/
Module Build Rules ModelingComponents.Build.cs

Classes

Name Remarks
APreviewGeometryActor An actor suitable for attaching components used to draw preview elements, such as LineSetComponent and TriangleSetComponent.
APreviewMeshActor UPreviewMesh internally spawns a APreviewMeshActor to hold the preview mesh object.
FBaseDynamicMeshSelector FBaseDynamicMeshSelector is an implementation of IGeometrySelector for a UDynamicMesh.
FBasePositionSnapSolver3 FBasePositionSnapSolver3 is a base class for 3D position snapping implementations.
FBasicDynamicMeshSelectionTransformer BasicDynamicMeshSelectionTransformer is a basic Transformer implementation that can be used with a FBaseDynamicMeshSelector.
FBoundarySelector This class allows selection of mesh boundary loops.
FBoundaryTopologyProvider  
FCubeGrid Class representing an adjustable and resizable power-of-two grid in which faces can be selected.
FCurveControlPointsMechanicInsertionChange  
FCurveControlPointsMechanicModeChange  
FCurveControlPointsMechanicMovementChange  
FCurveControlPointsMechanicSelectionChange  
FDragAlignmentBase FDragAlignmentBase is a base class for shared functionality of UDragAlignmentMechanic and UDragAlignmentInteraction.
FDynamicMeshComponentSelectorFactory FDynamicMeshComponentSelectorFactory constructs FDynamicMeshSelector instances for UDynamicMeshComponents
FDynamicMeshGroupEdit FDynamicMeshGroupEdit stores a modification of polygroup IDs on a set of triangles
FDynamicMeshGroupEditBuilder FDynamicMeshGroupEditBuilder builds up a FDynamicMeshGroupEdit incrementally.
FDynamicMeshPolygroupTransformer IGeometrySelectionTransformer for Dynamic Mesh Polygroups, that does various types of soft deformation.
FDynamicMeshSelector FDynamicMeshSelector is an implementation of FBaseDynamicMeshSelector meant to be used with UDynamicMeshComponents.
FGeometrySelectionDeltaChange FGeometrySelectionDeltaChange stores a Remove-then-Add change in a FGeometrySelection.
FGeometrySelectionReplaceChange FGeometrySelectionReplaceChange stores a full replacement of a FGeometrySelection, ie full copies of the selection set before and after the change
FGroupTopologyProvider TopologyProvider using FGroupTopology
FGroupTopologySelector FGroupTopologySelector is a MeshTopologySelector subclass using an FGroupTopology to define groups, edges, and vertices
FLatticeControlPointsMechanicMovementChange Control points have moved.
FLatticeControlPointsMechanicSelectionChange Control point selection has changed.
FLongTransactionTracker A simple manager class to track transactions that will be open for a duration of time, e.g. during a mouse drag, within a single tool or mechanic.
FMeshEdgesFromTriangleSubIndices Helper class that can store a list of edges as pairs of triangle IDs and {0,1,2} indices into the triangle edge triplet, because regular FDynamicMesh edge IDs may not stay the same across some mesh operations that preserve the vertex/triangle ID topology.
FMeshPolygroupChange FMeshPolygroupChange stores a change to Polygroup IDs on a set of triangles, as a FDynamicMeshGroupEdit.
FMeshSceneAdapter FMeshSceneAdapter creates an internal representation of an Actor/Component/Asset hierarchy, so that a minimal set of Mesh data structures can be constructed for the unique Meshes (generally Assets).
FMeshSelectionChange FMeshSelectionChange represents an reversible change to a UMeshSelectionSet
FMeshSelectionChangeBuilder FMeshSelectionChangeBuilder can be used to construct a FMeshSelectionChange.
FMeshTopologySelectionMechanicSelectionChange  
FMeshTopologySelector FMeshTopologySelector implements selection behavior for a subset of mesh elements.
FModelingComponentsModule  
FPhysicsDataCollection FPhysicsDataCollection holds onto physics-system data that is needed for various interactive tools and algorithms.
FPointPlanarSnapSolver FPointPlanarSnapSolver solves for a Point snap location on a plane, based on an input Point and a set of target points and lines in the plane.
FQuickAxisRotator  
FQuickAxisTranslater FQuickAxisTranslater implements the underpinnings for "quick" axis transformations, ie axis-gizmo-like behavior without having to explicitly click on an axis.
FQuickTransformer  
FRaySpatialSnapSolver FRaySpatialSnapSolver solves for a Point snap location based on an input Ray and a set of snap targets (3D points and 3D lines).
FRenderCaptureOcclusionHandler  
FSceneCapturePhotoSet FSceneCapturePhotoSet creates a set of render captures for a given World and set of Actors, stored as a SpatialPhotoSet for each desired render buffer type.
FSceneCapturePhotoSetSampler  
FSceneGeometrySpatialCache  
FSelectClickedAction BehaviorTarget to do world raycast selection from a click Currently used to click-select reference planes in the world
FSpaceCurveDeformationMechanicMovementChange  
FSpaceCurveDeformationMechanicSelectionChange  
FSpaceCurveSource  
FTexture2DBuilder Texture2DBuilder is a utility class for creating/modifying various types of UTexture2D.
FTopologyProvider FTopologyProvider provides selectable edge/group/corner information for FMeshTopologySelector to use.
FTransformGizmoDataBinder Helper class for binding a UCombinedTransformGizmo to several FVector3d's such that they are updated when the gizmo is changed, and the gizmo is updated from the vectors if the approriate function is called.
FWorldRenderCapture FWorldRenderCapture captures a rendering of a set of Actors in a World from a specific viewpoint.
TCustomIndexedValuesChange TCustomIndexedValuesChange is an implementation of TIndexedValuesChange that allows you to provide the Apply() And Revert() implementations via lambdas, as well as specify a custom data element to be stored with the Change.
TGenericDataBackgroundCompute TGenericDataBackgroundCompute is an infrastructure object that implements a common UI pattern in interactive 3D tools, where we want to run an expensive parameterized computation (via a TGenericDataOperator) in a background thread so as to not block the UI.
TIndexedValuesChange TIndexedValuesChange stores a change of values at a set of indices.
TIndexedValuesChangeBuilder TIndexedValuesChangeBuilder incrementally builds up a TIndexedValuesChange instance/subclass.
TSimpleValueLambdaChange TSimpleValueLambdaChange is a generic FToolCommandChange that swaps between two (template-type) Values.
TValueWatcher TValueWatcher is used to implement a common Tool pattern where it is necessary to essentially poll a value to see if it has changed, and if it has, call a function.
UBaseCreateFromSelectedCollisionProperties  
UBaseCreateFromSelectedHandleSourceProperties  
UBaseCreateFromSelectedTool UBaseCreateFromSelectedTool is a base Tool (must be subclassed) that provides support for common functionality in tools that create a new mesh from a selection of one or more existing meshes
UBaseCreateFromSelectedToolBuilder ToolBuilder for UBaseCreateFromSelectedTool
UBaseMeshProcessingTool UBaseMeshProcessingTool is a base Tool (ie has no functionality of it's own and must be subclassed) that provides the following structure:
UBaseMeshProcessingToolBuilder ToolBuilder for UBaseMeshProcessingTool
UBaseVoxelTool Base for Voxel tools
UBoundarySelectionMechanic  
UCollectSurfacePathMechanic  
UCollisionPrimitivesMechanic  
UConstructionPlaneMechanic UConstructionPlaneMechanic implements an interaction in which a 3D plane can be positioned using the standard 3D Gizmo, or placed at hit-locations in the existing scene.
UCreateMeshObjectTypeProperties UCreateMeshObjectTypeProperties is a InteractiveTool PropertySet used to select what type of object to create, in creation tools (ie StaticMesh, Volume, etc).
UCurveControlPointsMechanic A mechanic for displaying a sequence of control points and moving them about.
UDEPRECATED_PolygonSelectionMechanicProperties DEPRECATED: Use UMeshTopologySelectionMechanicProperties.
UDragAlignmentInteraction Interaction that can be added to (potentially multiple) UCombinedTransformGizmo object to allow them to snap to scene geometry in rotation and translation.
UDragAlignmentMechanic Mechanic that can be added to (potentially multiple) UCombinedTransformGizmo object to allow them to snap to scene geometry in rotation and translation when the Ctrl key is pressed.
UDynamicMeshCommitter  
UDynamicMeshProvider  
UDynamicMeshReplacementChangeTarget Bare bones wrapper of FDynamicMesh3 that supports MeshReplacementChange-based updates.
UGeometrySelectionEditCommand UGeometrySelectionEditCommand is a command that edits geometry based on a selection.
UGeometrySelectionEditCommandArguments Arguments for a UGeometrySelectionEditCommand
UGeometrySelectionEditCommandResult  
UGeometrySelectionManager UGeometrySelectionManager provides the infrastructure for "Element Selection", ie geometric sub-elements of some geometry object like a Triangle Mesh.
UGeometrySelectionVisualizationProperties  
UInteractiveToolActivity A tool activity is a sort of "sub-tool" used to break apart functionality in tools that provide support for different multi-interaction subtasks.
ULatticeControlPointsMechanic  
ULineSetComponent  
UMeshElementsVisualizer UMeshElementsVisualizer is a subclass of UPreviewGeometry that displays mesh elements.
UMeshElementsVisualizerProperties Visualization settings UMeshElementsVisualizer
UMeshOpPreviewWithBackgroundCompute UMeshOpPreviewWithBackgroundCompute is an infrastructure object that implements a common UI pattern in interactive 3D tools, where we want to run an expensive computation on a mesh that is based on user-specified parameters, and show a preview of the result.
UMeshSculptLayersManager  
UMeshSurfacePointMeshEditingToolBuilder Base tool builder class for UMeshSurfacePointTools with mesh editing requirements.
UMeshTopologySelectionMechanic Base class mechanic for selecting a subset of mesh elements (edge loops, groups, corners, etc.) Internally it relies on an FMeshTopologySelector to define which type of mesh topology is selectable.
UMeshTopologySelectionMechanicProperties  
UMeshWireframeComponent UMeshWireframeComponent draws a mesh wireframe as lines, with line color/thickness varying depending on line type and the configuration settings.
UModelingComponentsEditorSettings Editor preferences for the Modeling Components plug-in.
UModelingComponentsSettings Settings for the Modeling Components plug-in.
UModelingObjectsCreationAPI UModelingObjectsCreationAPI is a base interface for functions that can be used to create various types of objects from Modeling Tools, or other sources.
UModelingSceneSnappingManager UModelingSceneSnappingManager is an implementation of snapping suitable for use in Modeling Tools/Gizmos (and potentially other places).
UModelingToolExternalDynamicMeshUpdateAPI UInterface for IModelingToolExternalDynamicMeshUpdateAPI.
UMultiSelectionMeshEditingTool Multi Selection Mesh Editing tool base class.
UMultiSelectionMeshEditingToolBuilder UMultiSelectionMeshEditingToolBuilder is a base tool builder for multi selection tools that define a common set of ToolTarget interfaces required for editing meshes.
UMultiTargetWithSelectionTool Multi Target with Selection tool base class.
UMultiTargetWithSelectionToolBuilder UMultiTargetWithSelectionToolBuilder is a base tool builder for multi selection tools with selections.
UMultiTransformer UMultiTransformer abstracts both a default TRS Gizmo, and the "Quick" translate/rotate Gizmos.
UOctreeDynamicMeshComponent UOctreeDynamicMeshComponent is a mesh component similar to UProceduralMeshComponent, except it bases the renderable geometry off an internal FDynamicMesh3 instance.
UOnAcceptHandleSourcesProperties Specialization for property settings for tools that create a new actor and need to decide what to do with multiple input objects.
UOnAcceptHandleSourcesPropertiesBase Base class for property settings for tools that create a new actor and need to decide what to do with the input objects.
UOnAcceptHandleSourcesPropertiesSingle Specialization for property settings for tools that create a new actor and need to decide what to do with a single input object.
UPersistentDynamicMeshSource  
UPlaneDistanceFromHitMechanic UPlaneDistanceFromHitMechanic implements an interaction where a Height/Distance from a plane is defined by intersecting a ray with a target mesh, and then using that hit point to define the distance.
UPointSetComponent UPointSetComponent is a Component that draws a set of points, as small squares.
UPolyEditPreviewMesh UPolyEditPreviewMesh is a variant of UPreviewMesh intended for use as a 'live preview' of a mesh creation/editing operation.
UPolygonSelectionMechanic UPolygonSelectionMechanic implements the interaction for selecting a set of faces/vertices/edges from a FGroupTopology.
UPolygroupLayersProperties Basic Tool Property Set that allows for selecting from a list of FNames (that we assume are Polygroup Layers)
UPolyLassoMarqueeMechanic Mechanic for a PolyLasso "marquee" selection.
UPreviewGeometry UPreviewGeometry creates and manages an APreviewGeometryActor and a set of preview geometry Components.
UPreviewMesh UPreviewMesh is a utility object that spawns and owns a transient mesh object in the World.
URectangleMarqueeInteraction URectangleMarqueeInteraction is a simplified version of URectangleMarqueeMechanic that is not a UInteractionMechanic, which requires a base Tool/ToolManager.
URectangleMarqueeMechanic Mechanic for a rectangle "marquee" selection.
USingleSelectionMeshEditingTool Single Selection Mesh Editing tool base class.
USingleSelectionMeshEditingToolBuilder USingleSelectionMeshEditingToolBuilder is a base tool builder for single selection tools that define a common set of ToolTarget interfaces required for editing meshes.
USingleTargetWithSelectionTool  
USingleTargetWithSelectionToolBuilder  
USpaceCurveDeformationMechanic  
USpaceCurveDeformationMechanicPropertySet  
USpatialCurveDistanceMechanic  
UToolActivityHost  
UToolHostCustomizationAPI  
UTransformInputsToolProperties Properties of UI to adjust input meshes
UTriangleSetComponent A component for rendering an arbitrary assortment of triangles.
UUVLayoutPreview UUVLayoutPreview is a utility object that creates and manages a 3D plane on which a UV layout for a 3D mesh is rendered.
UUVLayoutPreviewProperties Visualization settings for UV layout preview
UVoxelProperties  
UWeightMapSetProperties Basic Tool Property Set that allows for selecting from a list of FNames (that we assume are Weight Maps)

Structs

Name Remarks
FActorAdapter FActorAdapter is used by FMeshSceneAdapter to represent all the child info for an AActor.
FActorChildMesh FActorChildMesh represents a 3D Mesh attached to an Actor.
FCameraPolyLasso Struct containing:
FCameraRectangle Struct containing:
FComponentCollisionSettings Component/BodySetup collision settings (eg StaticMeshComponent) we might need to pass through the functions below
FCreateActorParams FCreateActorParams is a collection of input data intended to be passed to UModelingObjectsCreationAPI::CreateNewActor().
FCreateActorResult FCreateActorResult is returned by UModelingObjectsCreationAPI::FCreateActorParams() to indicate success/failure and provide information about created actors
FCreateComponentParams FCreateComponentParams is a collection of input data intended to be passed to UModelingObjectsCreationAPI::CreateNewComponentOnActor().
FCreateComponentResult FCreateComponentResult is returned by UModelingObjectsCreationAPI::CreateNewComponentOnActor() to indicate success/failure and provide information about created components
FCreateMaterialObjectParams FCreateMaterialObjectParams is a collection of input data intended to be passed to UModelingObjectsCreationAPI::CreateMaterialObject().
FCreateMaterialObjectResult FCreateMaterialObjectResult is returned by UModelingObjectsCreationAPI::CreateMaterialObject() to indicate success/failure and provide information about created texture objects
FCreateMeshObjectParams FCreateMeshObjectParams is a collection of input data intended to be passed to UModelingObjectsCreationAPI::CreateMeshObject().
FCreateMeshObjectResult FCreateMeshObjectResult is returned by UModelingObjectsCreationAPI::CreateMeshObject() to indicate success/failure and provide information about created mesh objects
FCreateTextureObjectParams FCreateTextureObjectParams is a collection of input data intended to be passed to UModelingObjectsCreationAPI::CreateTextureObject().
FCreateTextureObjectResult FCreateTextureObjectResult is returned by UModelingObjectsCreationAPI::CreateTextureObject() to indicate success/failure and provide information about created texture objects
FDrawSplineSettings Used for DrawSpline()
FDynamicMeshOpResult FDynamicMeshOpResult is a container for a computed Mesh and Transform
FFindSceneSnapPointParams  
FGeometryCacheToDynamicMeshOptions  
FGeometryIdentifier FGeometryIdentifier is used to represent a specific Geometry-containing object.
FGeometrySelectionHandle FGeometrySelectionHandle stores a Selection and an Identifier for the geometry object that the Selection is defined relative to
FGroupTopologyUtils Additional functionality for operating on FGroupTopology
FMeshElementSelectionParams  
FMeshSceneAdapterBuildOptions Configuration for FMeshSceneAdapter::Build()
FMeshSceneRayHit FMeshSceneRayHit is returned by various ray-intersection functions below
FMeshTypeContainer FMeshTypeContainer is a wrapper for an object that contains a unique Mesh of some kind, which is used by an FActorChildMesh to represent that unique mesh.
FModelingToolsAxisFilter  
FModelingToolsColorChannelFilter  
FRenderableLine  
FRenderablePoint  
FRenderableTriangle  
FRenderableTriangleVertex  
FRenderCaptureConfig  
FRenderCaptureCoordinateConverter2D Render capture images use the render target coordinate system, which is defined such that:
FRenderCaptureTextures  
FRenderCaptureTypeFlags FRenderCaptureTypeFlags is a set of per-capture-type booleans
FSceneCaptureConfig  
FSceneGeometryID  
FSceneGeometryPoint  
FSelectionRenderHelper  
FSimpleCollisionToMeshAttributeSettings Settings to define how attributes such as UVs and normals are set when converting simple collision shapes to dynamic meshes.
FSimpleCollisionTriangulationSettings Settings to define how simple collision shapes are triangulated.
FSnapGeometry FSnapGeometry stores information about geometry data of a snap, which we might use for highlights/etc
FStaticMeshBuildSettingChange Set of changes to apply to StaticMesh Build Settings
FStaticMeshConversionOptions Options for converting Static Mesh assets.
FStaticMeshLODMaterialSetInfo Information about the materials assigned to a StaticMesh LOD.
FStaticMeshMaterialSlot Information about a mesh material slot (eg a FStaticMaterial)
FToMeshOptions General options for converting/extracting a mesh from an asset or scene component Options may be ignored where not applicable (for example if the source type does not have LODs)
FVolumeToMeshOptions  
TRenderCaptureTypeData  

Interfaces

Name Remarks
IDynamicMeshCommitter  
IDynamicMeshProvider  
IGeometrySelectionChange Base interface intended to be implemented by FToolCommandChange subclasses that represent changes to a FGeometrySelection.
IGeometrySelectionTransformer IGeometrySelectionTransformer is a transient object that is created by an IGeometrySelector to provide external code with a way to manipulate/transform an active Selection.
IGeometrySelector IGeometrySelector is a base API definition for, roughly, "an object that knows how to
IGeometrySelectorFactory Factory for a specific type of IGeometrySelector
IMeshSculptLayersManager API to provide control over mesh sculpt layer support.
IMeshSpatialWrapper Abstract interface to a spatial data structure for a mesh
IMeshWireframeSource IMeshWireframeSource is an abstract interface to a class that provides a set of edges.
IMeshWireframeSourceProvider IMeshWireframeSourceProvider is an abstract interface to some implementation that can provide an IMeshWireframeSource implementation on demand.
IModelingToolExternalDynamicMeshUpdateAPI Provides an API to allow external methods to update the mesh or meshes managed by a tool
IPersistentDynamicMeshSource  
ISceneGeometrySpatial  
IToolActivityHost  
IToolHostCustomizationAPI An API (to be stored as a context object) that would allow tools to customize aspects of their hosts' appearance.

Typedefs

Name Type Remarks Include Path
FBackgroundDynamicMeshComputeSource UE::Geometry::TBackgroundModelingComputeSource< UE::Geometry::FDynamicMeshOperator, UE::Geometry::IDynamicMeshOperatorFactory > FBackgroundDynamicMeshComputeSource is an instantiation of the TBackgroundModelingComputeSource template for FDynamicMeshOperator / IDynamicMeshOperatorFactory MeshOpPreviewHelpers.h

Enums

Public

Name Remarks
EBakeTextureBitDepth  
EBakeTextureResolution Bake maps enums
EBakeTextureSamplesPerPixel  
EBaseCreateFromSelectedTargetType  
ECollectSurfacePathDoneMode  
ECreateMeshObjectSourceMeshType Types of possible source meshes stored in FCreateMeshObjectParams
ECreateModelingObjectResult Result code returned by UModelingObjectsCreationAPI functions
ECreateObjectTypeHint Hint for the type of mesh object a UModelingObjectsCreationAPI might create based on FCreateMeshObjectParams data.
EEnumerateRenderCachesDirtyFlags  
EGeometrySelectionElementType  
EGeometrySelectionTopologyType  
EHandleSourcesMethod Options to handle source meshes
EMarqueeSelectionUpdateType Selection update type when the marquee rectangle has changed.
EModelingComponentsPlaneVisualizationMode Modeling Components plugin-wide plane visualization modes
EMultiTransformerMode  
ESpaceCurveControlPointFalloffType  
ESpaceCurveControlPointOriginMode  
ESpaceCurveControlPointTransformMode  
EToolActivityEndResult  
EToolActivityStartResult  
EUVLayoutPreviewSide Where should in-viewport UVLayoutPreview be shown, relative to target object
ToolSetupUtil::ImageMaterialType Types of image-based material that we can create
UE::Conversion::EMeshLODType The Type of LOD in a Mesh Asset.
UE::MeshDescription::EBuildSettingBoolChange Utility functions to update UStaticMesh build settings How to update a boolean build setting
UE::ToolTarget::EDynamicMeshUpdateResult EDynamicMeshUpdateResult is returned by functions below that update a ToolTarget with a new Mesh

Variables

Public

Name Type Remarks Include Path Unreal Specifiers
EdgeIDs TArray< UE::Geometry::FIndex2i > Selected edges, represented as index pairs because for many selections, using a pair of vertices defining/on the edge is more reliable (due to unstable edge IDs) Selection/PersistentMeshSelection.h  
FaceIDs TArray< int32 > Selected triangles/faces/regions Selection/PersistentMeshSelection.h  
RenderEdges TArray< UE::Geometry::FSegment3d > Set of 3D lines representing selection (in world space) Selection/PersistentMeshSelection.h  
RenderVertices TArray< FVector3d > Set of 3D points representing selection (in world space) Selection/PersistentMeshSelection.h  
SourceComponent UPrimitiveComponent * Component this selection applies to (eg that owns mesh, etc) Selection/PersistentMeshSelection.h  
TopologyType ETopologyType Selection type Selection/PersistentMeshSelection.h  
VertexIDs TArray< int32 > Selected vertices or "corners" (eg of polygroup topology) Selection/PersistentMeshSelection.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

const TArray< int32 > & GetGroupIDs()

   Selection/PersistentMeshSelection.h  

bool HasRenderableLines()

   Selection/PersistentMeshSelection.h  

bool IsEmpty()

   Selection/PersistentMeshSelection.h  

void MeshDebugDraw::DrawHierarchicalGrid ( double BaseGridScale,
double GridZoomFactor,
int32 MaxLevelDensity,
const FVector& WorldMaxBounds,
const FVector& WorldMinBounds,
int32 Levels,
int32 Subdivisions,
TArray< FColor >& Colors,
const FFrame3d& LocalFrame,
float LineWidth,
bool bDepthTested,
FPrimitiveDrawInterface* PDI,
const FTransform& Transform
)

 Draw a zoomable, hierarchical grid with configurable depth and density terms Drawing/MeshDebugDrawing.h  

void MeshDebugDraw::DrawNormals ( const FDynamicMeshNormalOverlay* Overlay,
float Length,
FColor Color,
float Thickness,
bool bScreenSpace,
FPrimitiveDrawInterface* PDI,
const FTransform& Transform
)

 Draw normals of mesh overlay as lines Drawing/MeshDebugDrawing.h  

void MeshDebugDraw::DrawSimpleFixedScreenAreaGrid ( const FViewCameraState& CameraState,
const FFrame3d& LocalFrame,
int32 NumGridLines,
double VisualAngleSpan,
float LineWidth,
FColor Color,
bool bDepthTested,
FPrimitiveDrawInterface* PDI,
const FTransform& Transform
)

 Draw a basic 2D grid with a given number of lines that covers roughly a constant area of the screen Drawing/MeshDebugDrawing.h  

void MeshDebugDraw::DrawSimpleGrid ( const FFrame3d& LocalFrame,
int GridLines,
double GridLineSpacing,
float LineWidth,
FColor Color,
bool bDepthTested,
FPrimitiveDrawInterface* PDI,
const FTransform& Transform
)

 Draw a basic 2D grid with a number of lines at given spacing Drawing/MeshDebugDrawing.h  

void MeshDebugDraw::DrawTriCentroids ( const FDynamicMesh3* Mesh,
const TArray< int >& Indices,
float PointSize,
FColor Color,
FPrimitiveDrawInterface* PDI,
const FTransform& Transform
)

 Draw mesh triangle centroids as points Drawing/MeshDebugDrawing.h  

void MeshDebugDraw::DrawVertices ( const FDynamicMesh3* Mesh,
const TArray< int >& Indices,
float PointSize,
FColor Color,
FPrimitiveDrawInterface* PDI,
const FTransform& Transform
)

 Draw vertices of mesh as points Drawing/MeshDebugDrawing.h  

void MeshDebugDraw::DrawVertices ( const FDynamicMesh3* Mesh,
const TSet< int >& Indices,
float PointSize,
FColor Color,
FPrimitiveDrawInterface* PDI,
const FTransform& Transform
)

   Drawing/MeshDebugDrawing.h  

bool operator! ( EEnumerateRenderCachesDirtyFlags E
)

   Selection/GeometrySelectionManager.h  
  Selection/GeometrySelectionManager.h  
  Selection/GeometrySelectionManager.h  
  Selection/GeometrySelectionManager.h  
  Selection/GeometrySelectionManager.h  
  Selection/GeometrySelectionManager.h  
  Selection/GeometrySelectionManager.h  
  Selection/GeometrySelectionManager.h  

bool operator== ( const FGenericMeshSelection& Other
) const

   Selection/PersistentMeshSelection.h  

double ToolSceneQueriesUtil::CalculateDimensionFromVisualAngleD ( const UInteractiveTool* Tool,
const FVector3d& Point,
double TargetVisualAngleDeg
)

   ToolSceneQueriesUtil.h  

double ToolSceneQueriesUtil::CalculateDimensionFromVisualAngleD ( const FViewCameraState& CameraState,
const FVector3d& Point,
double TargetVisualAngleDeg
)

   ToolSceneQueriesUtil.h  

double ToolSceneQueriesUtil::CalculateNormalizedViewVisualAngleD ( const FViewCameraState& CameraState,
const FVector3d& Point1,
const FVector3d& Point2
)

   ToolSceneQueriesUtil.h  

double ToolSceneQueriesUtil::CalculateViewVisualAngleD ( const UInteractiveTool* Tool,
const FVector3d& Point1,
const FVector3d& Point2
)

   ToolSceneQueriesUtil.h  

double ToolSceneQueriesUtil::CalculateViewVisualAngleD ( const FViewCameraState& CameraState,
const FVector3d& Point1,
const FVector3d& Point2
)

   ToolSceneQueriesUtil.h  

bool ToolSceneQueriesUtil::FindNearestVisibleObjectHit ( UWorld* World,
FHitResult& HitResultOut,
const FRay& Ray,
const TArray< const UPrimitiveComponent* >* IgnoreComponents,
const TArray< const UPrimitiveComponent* >* InvisibleComponentsToInclude
)

 Find the nearest object hit by the LineTrace from Start to End that is currently visible (provides correct result in Editor) ToolSceneQueriesUtil.h  

bool ToolSceneQueriesUtil::FindNearestVisibleObjectHit ( USceneSnappingManager* SnappingManager,
FHitResult& HitResultOut,
const FRay& Ray,
const TArray< const UPrimitiveComponent* >* IgnoreComponents,
const TArray< const UPrimitiveComponent* >* InvisibleComponentsToInclude
)

 Find the nearest object hit by the LineTrace from Start to End that is currently visible (provides correct result in Editor) ToolSceneQueriesUtil.h  

bool ToolSceneQueriesUtil::FindNearestVisibleObjectHit ( const UInteractiveTool* Tool,
FHitResult& HitResultOut,
const FRay& Ray,
const TArray< const UPrimitiveComponent* >* IgnoreComponents,
const TArray< const UPrimitiveComponent* >* InvisibleComponentsToInclude
)

 Find the nearest object hit by the LineTrace from Start to End that is currently visible (provides correct result in Editor) ToolSceneQueriesUtil.h  

bool ToolSceneQueriesUtil::FindNearestVisibleObjectHit ( UWorld* World,
FHitResult& HitResultOut,
const FVector& Start,
const FVector& End,
const TArray< const UPrimitiveComponent* >* IgnoreComponents,
const TArray< const UPrimitiveComponent* >* InvisibleComponentsToInclude
)

 Find the nearest object hit by the LineTrace from Start to End that is currently visible (provides correct result in Editor) ToolSceneQueriesUtil.h  

bool ToolSceneQueriesUtil::FindNearestVisibleObjectHit ( const UInteractiveTool* Tool,
FHitResult& HitResultOut,
const FVector& Start,
const FVector& End,
const TArray< const UPrimitiveComponent* >* IgnoreComponents,
const TArray< const UPrimitiveComponent* >* InvisibleComponentsToInclude
)

 Find the nearest object hit by the LineTrace from Start to End that is currently visible (provides correct result in Editor) ToolSceneQueriesUtil.h  
Run a query against the scene to find the best SnapPointOut for the given Point ToolSceneQueriesUtil.h  

bool ToolSceneQueriesUtil::FindSceneSnapPoint ( const UInteractiveTool* Tool,
const FVector3d& Point,
FVector3d& SnapPointOut,
bool bVertices,
bool bEdges,
double VisualAngleThreshold,
FSnapGeometry* SnapGeometry,
FVector* DebugTriangleOut
)

 Run a query against the scene to find the best SnapPointOut for the given Point ToolSceneQueriesUtil.h  

bool ToolSceneQueriesUtil::FindWorldGridSnapPoint ( const UInteractiveTool* Tool,
const FVector3d& QueryPoint,
FVector3d& GridSnapPointOut
)

 Run a query against the scene to find the nearest WorldGrid snap point ToolSceneQueriesUtil.h  

double ToolSceneQueriesUtil::GetDefaultVisualAngleSnapThreshD()

   ToolSceneQueriesUtil.h  

bool ToolSceneQueriesUtil::IsPointVisible ( const FViewCameraState& CameraState,
const FVector3d& Point
)

   ToolSceneQueriesUtil.h  

bool ToolSceneQueriesUtil::IsVisibleObjectHit ( const FHitResult& HitResult
)

   ToolSceneQueriesUtil.h  

double ToolSceneQueriesUtil::PointSnapMetric ( const FViewCameraState& CameraState,
const FVector3d& Point1,
const FVector3d& Point2
)

 Get a measurement for testing whether two points can snap together, useful for choosing the best snap point among multiple options. ToolSceneQueriesUtil.h  

bool ToolSceneQueriesUtil::PointSnapQuery ( const UInteractiveTool* Tool,
const FVector3d& Point1,
const FVector3d& Point2,
double VisualAngleThreshold
)

 Test if two points are close enough to snap together. ToolSceneQueriesUtil.h  

bool ToolSceneQueriesUtil::PointSnapQuery ( const FViewCameraState& CameraState,
const FVector3d& Point1,
const FVector3d& Point2,
double VisualAngleThreshold
)

 Test if two points are close enough to snap together. ToolSceneQueriesUtil.h  

double ToolSceneQueriesUtil::SnapDistanceToWorldGridSize ( const UInteractiveTool* Tool,
const double Distance
)

 Round the given distance to the nearest multiple of the world grid cell size ToolSceneQueriesUtil.h  

Please use the function of the same name which takes EEnumerateSelectionMapping flags instead bool ToolSelectionUtil::AccumulateSelectionElements ( UE::Geometry::FGeometrySelectionElements& Elements,
const UE::Geometry::FGeometrySelection& Selection,
const UE::Geometry::FDynamicMesh3& SourceMesh,
const UE::Geometry::FGroupTopology* Topology,
const FTransform* ApplyTransform,
bool bMapFacesToEdges
)

 Prefer AccumulateSelectionElements with Flags parameter. Selection/ToolSelectionUtil.h  
Add the geometry selection elements corresponding to the given Selection to Elements. Selection/ToolSelectionUtil.h  

void ToolSelectionUtil::DebugRender ( IToolsContextRenderAPI* RenderAPI,
const UE::Geometry::FGeometrySelectionElements& Elements,
float LineThickness,
FLinearColor LineColor,
float PointSize,
FLinearColor PointColor,
float DepthBias,
FLinearColor FillColor
)

 Todo [nickolas.drake]: remove this function when no longer used by GeometrySelectionManager Selection/ToolSelectionUtil.h  

void ToolSelectionUtil::DebugRenderGeometrySelectionElements ( IToolsContextRenderAPI* RenderAPI,
const UE::Geometry::FGeometrySelectionElements& Elements,
bool bIsPreview
)

 Render the given Elements using FPrimitiveDrawInterface Selection/ToolSelectionUtil.h  
Change the active selection to the given Actor, via given ToolManager. Replaces existing selection. Selection/ToolSelectionUtil.h  
Change the active selection to the given Actors, via given ToolManager. Selection/ToolSelectionUtil.h  
Rendering Configuration/Setup Functions These utility functions are used to configure rendering settings on Preview Meshes created internally by Modeling Tools. ToolSetupUtil.h  
  ToolSetupUtil.h  

UCurveFloat * ToolSetupUtil::GetContrastAdjustmentCurve ( UInteractiveToolManager* ToolManager
)

   ToolSetupUtil.h  
  ToolSetupUtil.h  

UMaterialInstanceDynamic * ToolSetupUtil::GetCustomDepthOffsetMaterial ( UInteractiveToolManager* ToolManager,
const FLinearColor& Color,
float DepthBias,
float Opacity
)

   ToolSetupUtil.h  

UMaterialInstanceDynamic * ToolSetupUtil::GetCustomImageBasedSculptMaterial ( UInteractiveToolManager* ToolManager,
UTexture* SetImage
)

   ToolSetupUtil.h  
  ToolSetupUtil.h  
  ToolSetupUtil.h  
Get a Material to use with a square brush plane/ROI indicator that has an analytic falloff function combined w/ an alpha mask texture. ToolSetupUtil.h  

UMaterialInstanceDynamic * ToolSetupUtil::GetDefaultBrushVolumeMaterial ( UInteractiveToolManager* ToolManager
)

   ToolSetupUtil.h  

UMaterialInterface * ToolSetupUtil::GetDefaultEditVolumeMaterial()

   ToolSetupUtil.h  

UMaterialInstanceDynamic * ToolSetupUtil::GetDefaultErrorMaterial ( UInteractiveToolManager* ToolManager
)

   ToolSetupUtil.h  

UMaterialInterface * ToolSetupUtil::GetDefaultLineComponentMaterial ( UInteractiveToolManager* ToolManager,
bool bDepthTested
)

 Gets a custom material suitable for use with ULineSetComponent. ToolSetupUtil.h  
Get the default material for surfaces ToolSetupUtil.h  
Get the default material to use for objects in an InteractiveTool. ToolSetupUtil.h  

UMaterialInterface * ToolSetupUtil::GetDefaultPointComponentMaterial ( UInteractiveToolManager* ToolManager,
bool bDepthTested
)

 Gets a custom material suitable for use with UPointSetComponent for square points. ToolSetupUtil.h  

UMaterialInterface * ToolSetupUtil::GetDefaultSculptMaterial ( UInteractiveToolManager* ToolManager
)

   ToolSetupUtil.h  

UMaterialInterface * ToolSetupUtil::GetDefaultWorkingMaterial ( UInteractiveToolManager* ToolManager
)

   ToolSetupUtil.h  

UMaterialInstanceDynamic * ToolSetupUtil::GetDefaultWorkingMaterialInstance ( UInteractiveToolManager* ToolManager
)

   ToolSetupUtil.h  

UE::Geometry::FFrame3d ToolSetupUtil::GetDefaultWorldReferenceFrame ( UInteractiveToolManager* ToolManager,
UE::Geometry::FQuaterniond DefaultOrientation,
double NoSelectionPlacementDistance
)

 Use the current selection, if any, or otherwise the camera position to find a relevant reference frame for creating new objects. ToolSetupUtil.h  

UMaterialInterface * ToolSetupUtil::GetImageBasedSculptMaterial ( UInteractiveToolManager* ToolManager,
ImageMaterialType Type
)

   ToolSetupUtil.h  
Gets a custom material suitable for use with UPointSetComponent for round points. ToolSetupUtil.h  
  ToolSetupUtil.h  
  ToolSetupUtil.h  
  ToolSetupUtil.h  
  ToolSetupUtil.h  

UMaterialInstanceDynamic * ToolSetupUtil::GetTransparentSculptMaterial ( UInteractiveToolManager* ToolManager,
const FLinearColor& Color,
double Opacity,
bool bTwoSided
)

   ToolSetupUtil.h  

UMaterialInstanceDynamic * ToolSetupUtil::GetUVCheckerboardMaterial ( double CheckerDensity
)

 Get a black-and-white NxN checkerboard material ToolSetupUtil.h  

UMaterialInstanceDynamic * ToolSetupUtil::GetVertexColorMaterial ( UInteractiveToolManager* ToolManager,
bool bTwoSided
)

   ToolSetupUtil.h  
Convert input UTexture2D to single-channel. AssetUtils/Texture2DUtil.h  

bool UE::AssetUtils::ForceVirtualTexturePrefetch ( FImageDimensions ScreenSpaceDimensions,
bool bWaitForPrefetchToComplete
)

 Issue requests to the render thread to force virtual textures to load for the given screen dimensions. AssetUtils/Texture2DUtil.h  

FName UE::AssetUtils::GenerateNewMaterialSlotName ( const TArray< FStaticMaterial >& ExistingMaterials,
UMaterialInterface* SlotMaterial,
int32 NewSlotIndex
)

 Generate a new unique material slot name for the given SlotMaterial and NewSlotIndex, ensuring that the name is not already used in the set of ExistingMaterials AssetUtils/StaticMeshMaterialUtil.h  

bool UE::AssetUtils::GetStaticMeshLODAssetMaterials ( UStaticMesh* StaticMeshAsset,
int32 LODIndex,
FStaticMeshLODMaterialSetInfo& MaterialInfoOut
)

 Extract information about the material set for a given LODIndex of a StaticMeshAsset AssetUtils/StaticMeshMaterialUtil.h  

bool UE::AssetUtils::GetStaticMeshLODMaterialListBySection ( UStaticMesh* StaticMeshAsset,
int32 LODIndex,
TArray< UMaterialInterface* >& MaterialListOut,
TArray< int32 >& MaterialIndexOut,
TArray< FName >& MaterialSlotNameOut
)

 Construct the linear per-section material list for a given LODIndex of a StaticMeshAsset AssetUtils/StaticMeshMaterialUtil.h  

bool UE::AssetUtils::ReadTexture ( UTexture2D* TextureMap,
TImageBuilder< FVector4f >& DestImageOut,
const bool bPreferPlatformData
)

 Extract the Dimensions and image pixels from an input TextureMap By default, the "Source" texture data is read. AssetUtils/Texture2DUtil.h  

bool UE::AssetUtils::SaveDebugImage ( const TArray< FColor >& Pixels,
FImageDimensions Dimensions,
FString DebugSubfolder,
FString FilenameBase,
int32 UseFileCounter
)

 Save image stored in Pixels, of given Dimensions to /Intermediate/DebugSubFolder/FilenameBase_.bmp If UseFileCounter is not specified, an internal static counter that is incremented each call is used. AssetUtils/Texture2DUtil.h  

bool UE::AssetUtils::SaveDebugImage ( const FImageAdapter& Image,
bool bConvertToSRGB,
FString DebugSubfolder,
FString FilenameBase,
int32 UseFileCounter
)

 Save Image to /Intermediate/DebugSubFolder/FilenameBase_.bmp If UseFileCounter is not specified, an internal static counter that is incremented each call is used. AssetUtils/Texture2DUtil.h  

bool UE::AssetUtils::SaveDebugImage ( const TArray< FLinearColor >& Pixels,
FImageDimensions Dimensions,
bool bConvertToSRGB,
FString DebugSubfolder,
FString FilenameBase,
int32 UseFileCounter
)

 Save image stored in Pixels, of given Dimensions to /Intermediate/DebugSubFolder/FilenameBase_.bmp If UseFileCounter is not specified, an internal static counter that is incremented each call is used. AssetUtils/Texture2DUtil.h  

void UE::Geometry::SplineUtil::DrawSpline ( const USplineComponent& SplineComp,
IToolsContextRenderAPI& RenderAPI,
const FDrawSplineSettings& Settings
)

   SplineUtil.h  

void UE::MeshDescription::ConfigureBuildSettings ( UStaticMesh* StaticMesh,
int32 SourceLOD,
FStaticMeshBuildSettingChange NewSettings
)

 Utility function to apply build settings changes to a UStaticMesh AssetUtils/MeshDescriptionUtil.h  
Utility functions to preprocess a MeshDescription so that it is suitable for use in Modeling Tools, ie with fully-populated autogen normals/tangents/etc. AssetUtils/MeshDescriptionUtil.h  
Populate any auto-generated attributes of a FMeshDescription that are currently invalid (eg Normals/Tangents, which may be zero until calculated) AssetUtils/MeshDescriptionUtil.h  

void UE::MeshDescription::InitializeAutoGeneratedAttributes ( FMeshDescription& Mesh,
UActorComponent* StaticMeshComponent,
int32 SourceLOD
)

 Populate any auto-generated attributes of a FMeshDescription that are currently invalid (eg Normals/Tangents, which may be zero until calculated) AssetUtils/MeshDescriptionUtil.h  
Create a new material object based on the data in CreateMaterialParams. ModelingObjectsCreationAPI.h  
Create a new mesh object based on the data in CreateMeshParams. ModelingObjectsCreationAPI.h  
Create a new actor based on the data in CreateActorParams. ModelingObjectsCreationAPI.h  
Create a new component on an actor based on the data in CreateComponentParams. ModelingObjectsCreationAPI.h  
Create a new texture object based on the data in CreateTexParams. ModelingObjectsCreationAPI.h  

FString UE::Modeling::GenerateRandomShortHexString ( int32 NumChars
)

 Generate a N-letter GUID string that contains only hex digits, and contains at least one letter and one number. ModelingObjectsCreationAPI.h  

FString UE::Modeling::GetComponentAssetBaseName ( UActorComponent* Component,
bool bRemoveAutoGeneratedSuffixes
)

 Look up the name for the Asset underlying the given Component, if there is one. ModelingObjectsCreationAPI.h  

FString UE::Modeling::StripGeneratedAssetSuffixFromName ( FString InputName
)

 Strip the appended auto-generated _UUID suffix on the given string, if we can detect one ModelingObjectsCreationAPI.h  

bool UE::ToolTarget::ApplyIncrementalMeshEditChange ( UToolTarget* Target,
TFunctionRef< bool(UE::Geometry::FDynamicMesh3&EditMesh, UObject*TransactionTarget)> MeshEditi...
)

 Apply an incremental mesh edit (MeshEditingFunc) to the ToolTarget. ModelingToolTargetUtil.h  

EDynamicMeshUpdateResult UE::ToolTarget::CommitDynamicMeshNormalsUpdate ( UToolTarget* Target,
const UE::Geometry::FDynamicMesh3* UpdatedMesh,
bool bUpdateTangents
)

 Update the Normals/Tangents of the ToolTarget's mesh (assuming it has one) based on the provided UpdatedMesh. ModelingToolTargetUtil.h  

EDynamicMeshUpdateResult UE::ToolTarget::CommitDynamicMeshUpdate ( UToolTarget* Target,
const UE::Geometry::FDynamicMesh3& UpdatedMesh,
bool bHaveModifiedTopology,
const FConversionToMeshDescriptionOptions& ConversionOptions,
const FComponentMaterialSet* UpdatedMaterials
)

 Update the Mesh in a ToolTarget based on the provided DynamicMesh, and optional material set ModelingToolTargetUtil.h  

EDynamicMeshUpdateResult UE::ToolTarget::CommitDynamicMeshUVUpdate ( UToolTarget* Target,
const UE::Geometry::FDynamicMesh3* UpdatedMesh
)

 Update the UV sets of the ToolTarget's mesh (assuming it has one) based on the provided UpdatedMesh. ModelingToolTargetUtil.h  

bool UE::ToolTarget::CommitMaterialSetUpdate ( UToolTarget* Target,
const FComponentMaterialSet& UpdatedMaterials,
bool bApplyToAsset
)

 Update the material set of the Target ModelingToolTargetUtil.h  
Update the Mesh in a ToolTarget based on the provided MeshDescription, and optional material set ModelingToolTargetUtil.h  
Update the Mesh in a ToolTarget based on the provided MeshDescription, and optional material set ModelingToolTargetUtil.h  

EDynamicMeshUpdateResult UE::ToolTarget::CommitMeshDescriptionUpdateViaDynamicMesh ( UToolTarget* Target,
const UE::Geometry::FDynamicMesh3& UpdatedMesh,
bool bHaveModifiedTopology,
const FCommitMeshParameters& CommitParams
)

 Update the Mesh in a ToolTarget based on the provided MeshDescription, and optional material set ModelingToolTargetUtil.h  
FCreateMeshObjectParams::TypeHint is used by the ModelingObjectsCreationAPI to suggest what type of mesh object to create inside various Tools. ModelingToolTargetUtil.h  
Fetch a DynamicMesh3 representing the given ToolTarget. ModelingToolTargetUtil.h  
Fetch a DynamicMesh3 representing the given ToolTarget. ModelingToolTargetUtil.h  

FMeshDescription UE::ToolTarget::GetEmptyMeshDescription ( UToolTarget* Target
)

   ModelingToolTargetUtil.h  

FString UE::ToolTarget::GetHumanReadableName ( UToolTarget* Target
)

   ModelingToolTargetUtil.h  

FTransform3d UE::ToolTarget::GetLocalToWorldTransform ( UToolTarget* Target
)

   ModelingToolTargetUtil.h  

FComponentMaterialSet UE::ToolTarget::GetMaterialSet ( UToolTarget* Target,
bool bPreferAssetMaterials
)

 Fetch the Material Set on the object underlying a ToolTarget. ModelingToolTargetUtil.h  

const FMeshDescription * UE::ToolTarget::GetMeshDescription ( UToolTarget* Target,
const FGetMeshParameters& GetMeshParams
)

   ModelingToolTargetUtil.h  

FMeshDescription UE::ToolTarget::GetMeshDescriptionCopy ( UToolTarget* Target,
const FGetMeshParameters& GetMeshParams
)

 Return a copy of the MeshDescription underlying a ToolTarget ModelingToolTargetUtil.h  

TArray< EMeshLODIdentifier > UE::ToolTarget::GetMeshDescriptionLODs ( UToolTarget* Target,
bool& bOutTargetSupportsLODs,
bool bOnlyReturnDefaultLOD,
bool bExcludeAutoGeneratedLODs
)

   ModelingToolTargetUtil.h  

UBodySetup * UE::ToolTarget::GetPhysicsBodySetup ( UToolTarget* Target
)

   ModelingToolTargetUtil.h  

IInterface_CollisionDataProvider * UE::ToolTarget::GetPhysicsCollisionDataProvider ( UToolTarget* Target
)

   ModelingToolTargetUtil.h  

USkeletalMesh * UE::ToolTarget::GetSkeletalMeshFromTargetIfAvailable ( UToolTarget* Target
)

   ModelingToolTargetUtil.h  

UStaticMesh * UE::ToolTarget::GetStaticMeshFromTargetIfAvailable ( UToolTarget* Target
)

   ModelingToolTargetUtil.h  

AActor * UE::ToolTarget::GetTargetActor ( UToolTarget* Target
)

   ModelingToolTargetUtil.h  

UPrimitiveComponent * UE::ToolTarget::GetTargetComponent ( UToolTarget* Target
)

   ModelingToolTargetUtil.h  

EMeshLODIdentifier UE::ToolTarget::GetTargetMeshDescriptionLOD ( UToolTarget* Target,
bool& bOutTargetSupportsLODs
)

 Return identifier for the mesh LOD that a ToolTarget represents, if defined for the given ToolTarget ModelingToolTargetUtil.h  

USceneComponent * UE::ToolTarget::GetTargetSceneComponent ( UToolTarget* Target
)

   ModelingToolTargetUtil.h  

int32 UE::ToolTarget::GetTriangleCount ( UToolTarget* Target
)

   ModelingToolTargetUtil.h  

bool UE::ToolTarget::HideSourceObject ( UToolTarget* Target
)

 Hide the "Source Object" (eg PrimitiveComponent, Actor, etc) backing a ToolTarget ModelingToolTargetUtil.h  
Not intended for direct use by tools, just for use by tool target util functions and tool target implementations that may need to do this operation. ModelingToolTargetUtil.h  
Internal path for use by tool targets to invoke PostEditChange with conditional capture for undo transactions. ModelingToolTargetUtil.h  

bool UE::ToolTarget::SetSourceObjectVisible ( UToolTarget* Target,
bool bVisible
)

 Show or Hide the "Source Object" (eg PrimitiveComponent, Actor, etc) backing a ToolTarget ModelingToolTargetUtil.h  

bool UE::ToolTarget::ShowSourceObject ( UToolTarget* Target
)

 Show the "Source Object" (eg PrimitiveComponent, Actor, etc) backing a ToolTarget ModelingToolTargetUtil.h  

bool UE::ToolTarget::SupportsIncrementalMeshChanges ( UToolTarget* Target
)

   ModelingToolTargetUtil.h  

void UE::WeightMaps::FindVertexWeightMaps ( const FMeshDescription* Mesh,
TArray< FName >& PropertyNamesOut
)

 Find the set of per-vertex weight map attributes on a MeshDescription WeightMapUtil.h  

bool UE::WeightMaps::GetVertexWeightMap ( const FMeshDescription* Mesh,
FName AttributeName,
FIndexedWeightMap1f& WeightMap,
float DefaultValue
)

 Extract a per-vertex weight map from a MeshDescription If the attribute with the given name is not found, a WeightMap initialized with the default value is returned WeightMapUtil.h  

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