+ Adding Get/Set LODGroup to StaticMeshEditorSubsystem
* Changing FMeshNaniteSettings to BlueprintType, and supporting BlueprintReadWrite for its members
#ROBOMERGE-AUTHOR: matt.oztalay
#ROBOMERGE-SOURCE: CL 18355637 in //UE5/Release-5.0/... via CL 18355677
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v895-18170469)
[CL 18355703 by matt oztalay in ue5-release-engine-test branch]
Also remove unnecessary allocations by allowing the async task to assume ownership of the vertex and index arrays passed to it.
#rb Andy.Davidson, Cedric.Caillaud
#jira UE-125187
#ROBOMERGE-AUTHOR: richard.talbotwatkin
#ROBOMERGE-SOURCE: CL 17448234 in //UE5/Main/...
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v870-17433530)
[CL 17448242 by richard talbotwatkin in ue5-release-engine-test branch]
* Specifying a flatten material that use VT samplers will automatically create textures of the correct type
* Moved default flatten material to config
* Default is now to use VT for HLOD
#rb jeremy.moore
#jira none
#lockdown simon.tourangeau
#ROBOMERGE-SOURCE: CL 15947766 in //UE5/Release-5.0-EarlyAccess/...
#ROBOMERGE-BOT: STARSHIP (Release-5.0-EarlyAccess -> Main) (v787-15839533)
[CL 15950281 by sebastien lussier in ue5-main branch]
- Moved source models related classes and implementation into separate files.
- Created a new UObject wrapper for holding mesh description bulk data; this is created as a transactable object inside a UStaticMesh.
- The cached mesh description is now an inner object of the bulk data wrapper; this allows transactions on the bulk data to affect the cached mesh.
- The static mesh SourceModels array can no longer be accessed directly: FStaticMeshSourceModel requires extra initialization before it should be used, so new LODs should be added through the static mesh API.
- Undo/redo is now fixed within the geometry tools
- Fixed regression where mesh description was being unpacked unnecessarily during transactions
- MeshDescription bulk data and its cached MeshDescriptions are now emptied prior to removing the UObject reference, in order to immediately free memory instead of needing to wait for garbage collection
- No more deadlocks when clearing or committing mesh descriptions during garbage collection
- Bulk data UObjects are constructed, where possible, at startup, in order to prevent it from happening during critical moments, e.g. during garbage collection or package saving.
#rb Danny.Couture, Alexis.Matte, Ryan.Schmidt
[CL 15420827 by Richard TalbotWatkin in ue5-main branch]
Moved functionality from the EditorLevelLibrary into the LevelEditorSubsystem, UnrealEditorSubsystem, EditorActorSubsystem and StaticMeshEditorSubsystem
#jira UE-77334
#rb lauren.barnes, francis.hurteau, brooke.hubert
#fyi chris.gagnon
[CL 13934034 by aditya ravichandran in ue5-main branch]
