FModifierGroupRegistry | Unreal Engine 5.8 Documentation

API > API/Plugins > API/Plugins/MeshPartitionEditor

Registry for managing collections of modifier groups within mesh partition workflows.

This class maintains both a committed set of groups and a staged set that allows modifications to be previewed or accumulated before being finalized.

Typical usage flow:

StageGroup() to prepare a new or modified group.
CommitStagedGroup() to move it into the persistent registry.
RevertStagedGroup() to discard staged changes.
RemoveGroup() to fully delete a committed group.


Name	FModifierGroupRegistry
Type	class
Header File	/Engine/Plugins/Experimental/MeshPartition/Source/MeshPartitionEditor/Public/MeshPartitionGroupRegistry.h
Include Path	#include "MeshPartitionGroupRegistry.h"

Syntax

class FModifierGroupRegistry

Typedefs

Name	Type	Remarks	Include Path
FGroupKeyToGroup	TMap< FGuid, MeshPartition::FModifierGroup >		MeshPartitionGroupRegistry.h

Variables

Protected

Name	Type	Remarks	Include Path	Unreal Specifiers
Groups	FGroupKeyToGroup		MeshPartitionGroupRegistry.h
StagedGroups	FGroupKeyToGroup		MeshPartitionGroupRegistry.h

Functions

Public

Name	Remarks	Include Path
bool CommitStagedGroup ( const FGuid& InGroupKey )	Moves a staged group into the committed collection.	MeshPartitionGroupRegistry.h
const MeshPartition::FModifierGroup * FindGroup ( const FGuid& InKey ) const	Finds a committed group by its key.	MeshPartitionGroupRegistry.h
TArray< MeshPartition::FModifierGroup > FindGroupsContainingModifiers ( TConstArrayView< MeshPartition::FModifierDesc > InModifiers ) const	Searches for groups containing the given set of modifiers.	MeshPartitionGroupRegistry.h
TArray< MeshPartition::FModifierGroup > FindGroupsIntersectingBounds ( TConstArrayView< const FBox > InBounds ) const	Searches for groups intersecting the provided bounds.	MeshPartitionGroupRegistry.h
const MeshPartition::FModifierGroup * FindStagedGroup ( const FGuid& InKey ) const	Finds a staged group by its key.	MeshPartitionGroupRegistry.h
const FGroupKeyToGroup & GetGroups()		MeshPartitionGroupRegistry.h
const FGroupKeyToGroup & GetStagedGroups()		MeshPartitionGroupRegistry.h
void RemoveGroup ( const FGuid& InGroupKey )	Removes a committed group from the registry.	MeshPartitionGroupRegistry.h
void Reset ()	Clears both committed and staged groups.	MeshPartitionGroupRegistry.h
void Reset ( TConstArrayView< const MeshPartition::FModifierGroup > InModifierGroups )	Resets the modifier group registry with a predefined set of groups.	MeshPartitionGroupRegistry.h
bool RevertStagedGroup ( const FGuid& InGroupKey )	Discards a staged group without committing it.	MeshPartitionGroupRegistry.h
FGuid StageGroup ( const MeshPartition::FModifierGroup& InGroup )	Adds a group to the staged collection, pending commit.	MeshPartitionGroupRegistry.h

Static

Name	Remarks	Include Path	Unreal Specifiers
static FGuid GetGroupRegistryKey ( const MeshPartition::FModifierGroup& InGroup )	Generates a unique registry key for the given group based on its contents.	MeshPartitionGroupRegistry.h

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