MeshPartitionEditor


Name	MeshPartitionEditor
Type	Editor
Part of Plugins	Mesh Partition
Location	/Engine/Plugins/Experimental/MeshPartition/Source/MeshPartitionEditor/
Module Build Rules	MeshPartitionEditor.Build.cs

Name	Remarks
AInteractiveSection	This is a transient actor, expressing an interactive part of a MegaMesh.
AModifierActor
APreviewSection	This is a transient actor, expressing a “compiled” part of a MegaMesh.
FAsyncMeshInstanceData
FChannelTextureRenderer	FMegaMeshChannelCollection contains functions and objects needed to build the rendering elements representing the masks and channels for the sections of the mega mesh Each base is assigned an Id in the collection allowing to reference and access other resources associated with it such as individual textures stored in the Texture collection
FDependencyContext	Collects all package and class dependencies, but does not do any hashing.
FDependencyHash	Hashes all the data, but does not collect any class or packages dependencies.
FHashArchive	Suggested hash method for computing modifier CacheKeys.
FHeightmapImporter	Imports a heightmap texture file as a new MegaMesh actor which is automatically partitioned along a grid where each tile will have the specified maximum number of vertices.
FMegaMeshGeneratorBase	This base class exists to share functionality related to actor unloading and packages when generating a multi-section Mega Mesh.
FMegaMeshRectangleGenerator	Class that generates a rectangular MegaMesh that has been partitioned into multiple underlying DynamicMeshes.
FMeshBuilder	Class used to Build FDynamicMesh3 + optional FDynamicMeshAABBTree3 from a build settings and modifier group.
FMeshPartitionEditorModule
FMeshView	A constrained view of an FDynamicMesh3 which is provided to MegaMeshModifierComponents when they apply modifications.
FModifierGraphCache
FModifierGroupRegistry	Registry for managing collections of modifier groups within mesh partition workflows.
FPassthroughBackgroundOp	An operation doing nothing.
FRectangleFalloffData	Helper for storing data used in multiple GetRectangleFalloffAlpha calls.
FRenderCaptureManager
FSplineDelegateHelper	Helper that manages spline-change delegates (undo/redo, property, transform).
FWorldPartitionModifierComponentDesc
TAsyncInitData	TAsyncInitData expands on TAsyncTransform but also holds a persistent reference to the input data.
TAsyncTransform	Utility class to transform some Input data into an Output data asynchronously.
UBooleanModifier
UCodeReusableModifier
UEditableModifierBase	A base class for modifiers that want to support direct editing via a tool target
UInstancedPatchModifier	Variant of the MeshPartition::UPatchModifier which supports multiple instances of the same parameter with different instance locations, to be used with PCG.
UInstancedProjectionModifier	Modifier that takes meshes and projects the megamesh to them, capable of holding multiple projection instances at once so that a new component doesn't have to be created for each one in PCG.
UInstancedTexturePatchModifier
ULatticeModifier
ULevelInstanceAdapter	MeshPartition::ULevelInstanceAdapter is a MeshPartition::UModifierComponent that can be attached to a LevelInstance actor in the world to allow all UModifierComponents inside of that level instance to affect the same MegaMesh that the adapter is set to affect.
UMaterialExpressionMeshPartitionChannelSample	CoreMeshPartition expression allowing to sample one of the channels at a texcoord location
UMaterialExpressionMeshPartitionChannelSampleIndex	CoreMeshPartition expression allowing to sample one of the channels at a texcoord location
UMaterialExpressionMeshPartitionInspector	Helper material expression providing an easy channel inspector rendering
UMaterialExpressionMeshPartitionResource	CoreMeshPartition material expression providing access to the channel(s) texture resource
UMaterialExpressionMeshPartitionTexcoord	CoreMeshPartition material expression providing access to the channel texcoord at the fragment
UMeshBasedModifierBase	A helper base class for modifiers that want to use a mesh that a user sets using the detail panel.
UMeshPartitionEditorComponent
UMeshPartitionEditorSubsystem
UMeshPartitionEditorWorldSubsystem
UMeshProjectModifier
UMeshProviderModifier	This is a Base modifier aimed to be used on a MegaMesh.
UModifierActorFactory
UModifierComponent	This is the base class for components modifying the MegaMesh.
UNoiseModifier	A simple modifier that will deform a MegaMesh by pulling all vertices within `Radius_ units to the same Z position of the patch component.
UPatchModifier	A simple modifier that will deform a MegaMesh by pulling all vertices within `Radius_ units to the same Z position of the patch component.
UPlatformCellTransformer
UPreviewMeshComponent
UProjectMeshLayersModifier	Modifier to manage layers of custom mesh detail, and project them onto a partitioned mesh
URemeshModifier	MegaMeshModifier that does local remeshing or tessellation.
URemeshModifierBase	Base class for modifiers that do Remeshing/Tessellation
URuntimeCellTransformer
USimpleWriteModifier	Modifier intended to be used with PCG
USplineModifier	A flexible spline based modifier, suitable for representing ridgelines, channels, raised hills, and lowered depression pockets.
USplineRemeshModifier	A modifier that will remesh or tessellate all triangles within some distance to a spline
UStaticMeshPreviewComponent	Subclass of static mesh component in order to customize the hit proxy, which needs to be custom to allow our visualizer to customize click handling for preview components (to route selection to base sections).
UTexturePatchEntry
UTexturePatchHeightEntry
UTexturePatchModifier	A modifier that reads from a given texture and moves vertices in the megamesh in some "vertical" direction (where vertical is determined by the Z direction of this component).
UTexturePatchWeightEntry
UWeightUtilityModifier	A simple modifier that will write a radial profile with falloff to a weight channel.
UWorldPartitionMeshPartitionBuilder	Example Command Line: ProjectName MapName -run=WorldPartitionBuilderCommandlet -SCCProvider=Perforce -Builder=WorldPartitionMeshPartitionBuilder.

Name	Remarks
FBaseGrowth	Struct describing how a modifier should grow the base so other modifiers can be taken into account when creating groups.
FBooleanModifierWeightEntry	Define weight channels to transfer from the boolean tool mesh.
FBuilderSettings
FBuildPerfStats
FBuildTask	Task / Result / Cache entry class for the MeshPartition::FMeshBuilder
FBuildTaskHandle	Handle on a TSharedPtr.
FBuildVariantUpdater	This structure reflects the status of compiled sections on disk (registered in the asset registry), with respect to the desired set of groups in a CachedBuildVariant.
FCachedDescriptors	Stores all of the descriptors relevant to a specific AMeshPartition actor, as well as the FModifierGrouping for each build variant
FChannelCollectionUVLayoutOptions
FCollisionTransformer	Mesh Partition Transformer producing and attaching a collision component for each transformer unit present in the execution context.
FCompiledSectionStatus	What is the state of the prebuilt compiled sections for a group
FDynamicSubmesh	Subclass of FDynamicSubmesh3 which allows remapping of the base mesh pointer.
FFarFieldTransformer	Mesh Partition Transformer producing and attaching a far field mesh for each transformer unit present in the execution context.
FFinalizeStaticMeshParams	Struct used to pass settings to FinalizeStaticMesh.
FGridCellEstimate	Estimated grid cell with its absolute world-space coordinate and bounding box.
FGridDimensions	Result of grid dimension computation: snapped origin + per-axis counts + per-axis extent.
FHeightmapImportParams	List of parameters for the MegaMesh Heightmap Importer.
FInstancedProjectionModifierInstance	Data needed for an instance of the mesh projection modifier.
FInstanceIndex	Typesafe wrapper for identifying and indexing modifier instances inside Modifier Groups
FInstanceInfo	Per-Instance modifier data.
FLODSettings
FMegaMeshRectangleGeneratorParams	List of parameters for the MegaMesh Rectangle Generator.
FMeshPartitionTransformerSimplificationSettings
FMeshPartitionUpdater	Captures the current state of a single mesh partition build variant, and manages what needs to be done to bring it up to date
FMeshPartitionWorldUpdater	Captures the current state of all mesh partitions in a world, and manages what needs to be done to bring the world up to date
FMeshSkirtSettings
FMeshSkirtTransformer	Deprecated no-op transformer.
FModifierChangeInfo
FModifierComponentInstanceData	Used to store un-serialized modifier component data during RerunConstructionScripts
FModifierDesc	Struct that can hold all of the ActorDesc properties for a mega mesh modifier (These are the properties that are available when the modifiers are not loaded into memory)
FModifierDescriptorCache
FModifierGroup
FModifierGrouping
FModifierIndex	Typesafe wrapper for identifying and indexing modifier component data inside Modifier Groups
FOnChangedEventInfo
FPerModifierBuildPerfStats
FPIEPathFixer	Removes any PIE path mangling from an FSoftObjectPath, if any is present, returning the non-PIE / original path.
FPlaneProjectionLayoutOptions	Options specific to the PlaneProject UV layout method.
FPrepareCompiledSectionsParams	Parameters for PrepareCompiledSections.
FPreviewSectionBuildContext	Struct used to manage async preview section builds.
FPriorityLayerName	Version of FNameWrapper to use for priority layer names.
FRectangleGeneratorUtils
FRVTTransformer	Mesh Partition Transformer binding the provided RVT to the sections present in the context.
FSculptLayerModifierWeightAttributeEntry
FSectionChannels
FSectionDomainMapping
FSectionInfo	Information about generated sections within an axis-aligned grid.
FSeparateWorldBuilder
FSimpleWriteModifier_ChannelValues
FSplineModifierWeightEntry	Describes a single weight channel entry for a spline modifier.
FStaticMeshTransformer	Mesh Partition Transformer producing and attaching a static mesh component for each transformer unit present in the execution context.
FStatusSummary	Summary of the status of compiled sections and groups
FSubsectionTransformer	Mesh Partition Transformer producing multiple transformer units by splitting the meshdata contained in the pipeline transformer units.
FVEUVLayoutOptions	Options specific to the Volume-Encoded UV algorithm.
FWorldCachedDescriptors	Stores the FCachedDescriptors for all AMeshPartition actors in a world
FWPActorPropertiesTransformer	Mesh Partition Transformer setting up all relevant WP properties for sections being produced.
HPreviewProxy	Simple custom hitproxy similar to HActor, but inheriting from HComponentVisProxy to allow our visualizers to customize the click handling inside FComponentVisualizerManager::HandleProxyForComponentVis
TIndexIterator
TIndexRange

Name	Remarks
IBaseMeshProviderOp	An object created by base sections to provide the base mesh when requested on background worker threads.
ICodeReusableModifier	A modifier that implements this interface may be reused by code that manages modifiers.
IModifierBackgroundOp	An object created by a modifier to apply its modifications on background worker threads.
IModifierResolver

Name	Type	Remarks	Include Path
FModifierFilterFunc	TFunction< bool(const MeshPartition::FBuilderSettings &, const MeshPartition::FModifierDesc &)>		MeshPartitionMeshBuilderCommon.h

Name	Remarks
UE::MeshPartition::EBooleanInsideTestMethod	Method to use for determining what is 'inside' a mesh
UE::MeshPartition::EBooleanModifierChannelSourceMode	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::EBooleanOperation	CSG operation types
UE::MeshPartition::EBooleanToolMeshEmbedding	Options to account for geometry outside the local region of the Boolean modifier tool mesh.
UE::MeshPartition::EBuildType	Enum describing the type of usecase requesting a mesh build.
UE::MeshPartition::EChangeType	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::EChannelUVUnwrapQuality	Quality tier requested for the UV unwrap. Currently only used by the VolumeEncoded method.
UE::MeshPartition::EFBMMode	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::EFilterBoundsMode	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::EInteractiveSectionState	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::EMegaMeshBooleanModifierPreviewVisOptions	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::EMeshPartitionSimplificationMode	Selects which simplification inputs the user authors directly and which are derived.
UE::MeshPartition::EMeshSkirtDirectionMethod	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::EMeshViewComponents	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::EModifierMeshSourceMode	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::ENoiseModifierType	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::ENoiseParameterization	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::ERemeshModifierOperation	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::ESculptLayerProjectMethod	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::ESculptLayerSetWeightChannelMethod	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::ESplineModifierBlendMode	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::ESplineModifierInteriorSmoothMode	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::ESplineModifierWriteMode	Which outputs a spline modifier writes.
UE::MeshPartition::ESplineWeightBlendMode	How a spline modifier's weight channel value is combined with existing values.
UE::MeshPartition::ETexturePatchAlphaMode	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::ETexturePatchBlendMode	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::ETexturePatchFalloffMode	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::ETexturePatchTessellationErrorMode	Copyright Epic Games, Inc. All Rights Reserved.
UE::MeshPartition::ETexturePatchTessellationMode	Copyright Epic Games, Inc. All Rights Reserved.

Name	Type	Remarks	Include Path
Base	const FName	The base type represent all meshes forming the first layer to be processed.	MeshPartitionModifierComponent.h
BaseGrowth	const FName		MeshPartitionModifierComponent.h
Class	const FName		MeshPartitionModifierComponent.h
Complexity	const FName		MeshPartitionModifierComponent.h
ComplexityMultiplier	const FName		MeshPartitionModifierComponent.h
IsContiguous	const FName		MeshPartitionModifierComponent.h
IsDisabled	const FName		MeshPartitionModifierComponent.h
MegaMeshGUID	const FName		MeshPartitionModifierComponent.h
MegaMeshModifierPath	const FName		MeshPartitionModifierComponent.h
MegaMeshModifiersNum	const FName		MeshPartitionModifierComponent.h
Priority	const FName		MeshPartitionModifierComponent.h
PropertiesVersionNumber	const uint32		MeshPartitionModifierComponent.h
PropertiesVersionNumberName	const FName		MeshPartitionModifierComponent.h
Type	const FName		MeshPartitionModifierComponent.h

Name	Remarks	Include Path
ENUM_RANGE_BY_COUNT ( UE::MeshPartition::EMeshPartitionReuseMode )	ENUM_RANGE_BY_COUNT defines a symbol that needs to be declared in the global namespace.	WorldPartitionMeshPartitionBuilder.h
PREDECLARE_USE_GEOMETRY_CLASS ( FDynamicMesh3 )		MeshPartitionEditorComponent.h
PREDECLARE_USE_GEOMETRY_CLASS ( FDynamicMesh3 )		MeshPartitionModifierComponent.h
PREDECLARE_USE_GEOMETRY_CLASS ( FDynamicMesh3 )		MeshPartitionPreviewSection.h
PREDECLARE_USE_GEOMETRY_CLASS ( FDynamicMesh3 )		Modifiers/MeshPartitionMeshProvider.h
PREDECLARE_USE_GEOMETRY_CLASS ( FDynamicMesh3 )		Modifiers/MeshPartitionSplineModifier.h
PREDECLARE_USE_GEOMETRY_CLASS ( FDynamicMeshOperator )		Modifiers/MeshPartitionSplineModifier.h
int32 UE::MeshPartition::MaterialExpression::CompilePickChannelTexture ( FMaterialCompiler* Compiler, int32 InTextureCollection_IDX, int32 InChannelPage_IDX )		MeshPartitionMaterialExpressionUtils.h
bool UE::MeshPartition::operator! ( EMeshViewComponents E )		MeshPartitionMeshView.h
bool UE::MeshPartition::operator! ( ESplineModifierWriteMode E )		Modifiers/MeshPartitionSplineModifier.h
EMeshViewComponents UE::MeshPartition::operator& ( EMeshViewComponents Lhs, EMeshViewComponents Rhs )		MeshPartitionMeshView.h
ESplineModifierWriteMode UE::MeshPartition::operator& ( ESplineModifierWriteMode Lhs, ESplineModifierWriteMode Rhs )		Modifiers/MeshPartitionSplineModifier.h
EMeshViewComponents & UE::MeshPartition::operator&= ( EMeshViewComponents& Lhs, EMeshViewComponents Rhs )		MeshPartitionMeshView.h
ESplineModifierWriteMode & UE::MeshPartition::operator&= ( ESplineModifierWriteMode& Lhs, ESplineModifierWriteMode Rhs )		Modifiers/MeshPartitionSplineModifier.h
EMeshViewComponents UE::MeshPartition::operator^ ( EMeshViewComponents Lhs, EMeshViewComponents Rhs )		MeshPartitionMeshView.h
ESplineModifierWriteMode UE::MeshPartition::operator^ ( ESplineModifierWriteMode Lhs, ESplineModifierWriteMode Rhs )		Modifiers/MeshPartitionSplineModifier.h
EMeshViewComponents & UE::MeshPartition::operator^= ( EMeshViewComponents& Lhs, EMeshViewComponents Rhs )		MeshPartitionMeshView.h
ESplineModifierWriteMode & UE::MeshPartition::operator^= ( ESplineModifierWriteMode& Lhs, ESplineModifierWriteMode Rhs )		Modifiers/MeshPartitionSplineModifier.h
EMeshViewComponents UE::MeshPartition::operator\| ( EMeshViewComponents Lhs, EMeshViewComponents Rhs )		MeshPartitionMeshView.h
ESplineModifierWriteMode UE::MeshPartition::operator\| ( ESplineModifierWriteMode Lhs, ESplineModifierWriteMode Rhs )		Modifiers/MeshPartitionSplineModifier.h
EMeshViewComponents & UE::MeshPartition::operator\|= ( EMeshViewComponents& Lhs, EMeshViewComponents Rhs )		MeshPartitionMeshView.h
ESplineModifierWriteMode & UE::MeshPartition::operator\|= ( ESplineModifierWriteMode& Lhs, ESplineModifierWriteMode Rhs )		Modifiers/MeshPartitionSplineModifier.h
EMeshViewComponents UE::MeshPartition::operator~ ( EMeshViewComponents E )		MeshPartitionMeshView.h
ESplineModifierWriteMode UE::MeshPartition::operator~ ( ESplineModifierWriteMode E )		Modifiers/MeshPartitionSplineModifier.h
UE::MeshPartition::UENUM()		WorldPartitionMeshPartitionBuilder.h

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