Added new accessors for getting individual SourceModels, or the entire array.
#rb none
#jira none
#ROBOMERGE-SOURCE: CL 7668562 in //UE4/Release-4.23/...
#ROBOMERGE-BOT: RELEASE (Release-4.23 -> Main) (v372-7473910)
[CL 7668565 by richard talbotwatkin in Main branch]
- MeshDescription now held as compressed bulk data and unpacked on demand. This is managed by FMeshDescriptionBulkData.
- Made RawMesh accessors in StaticMesh responsible for performing legacy conversion from MeshDescription if necessary.
- Added FBulkDataReader/FBulkDataWriter for serializing bulk data to/from archives.
- Added FUntypedBulkData::UnloadBulkData() for releasing the bulk data allocation without invalidating it (so it can be reloaded when necessary). Editor only.
- Renamed StaticMesh MeshDescription methods (now GetMeshDescription(), CommitMeshDescription() etc).
- Removed unnecessary mesh description attributes from StaticMesh: those which are used only by Editable Mesh, and transient attributes which are automatically generated when needed for building vertex tangent space.
- Slight change to FAttributesSetBase::RegisterAttribute(): if the attribute specified already exists, it will be amended to adopt the type, passed flags and number of indices. If only the number of indices changes, any existing data will be preserved if possible.
- Added TMeshAttributesRef::Copy() to copy an entire attributes array from one name/index to another.
- Changed implementation of TMeshAttributesRef/TMeshAttributesView to provide a const ref/view if the template type parameter is const. Added TMeshAttributesConstRef/TMeshAttributesConstView as an alias for backwards compatibility.
- Added FMeshDescription::IsEmpty() for determining whether a mesh description has any content or not.
- Removed versioning GUID for mesh description: this should be handled by each mesh description client now.
#rb Alexis.Matte
[CL 4644791 by Richard TalbotWatkin in Dev-Editor branch]
Fix the material ID when creating generating reduce LODs from a mesh where the materials was re-order to the FBX order.
#rb none
#jira UE-64028
#ROBOMERGE-SOURCE: CL 4430035 in //UE4/Release-4.21/...
#ROBOMERGE-BOT: RELEASE (Release-4.21 -> Release-Staging-4.21)
[CL 4430038 by alexis matte in Staging-4.21 branch]
- Fixed crash when importing model thru VRED importer
- Includes changes to StaticMeshBuilder.cpp made in CL #4369604
#jira UE-64152
#rb Yuriy.ODonnell, Richard.TalbotWatkins
#ROBOMERGE-SOURCE: CL 4407052 in //UE4/Release-4.21/...
#ROBOMERGE-BOT: RELEASE (Release-4.21 -> Release-Staging-4.21)
[CL 4407058 by jeanluc corenthin in Staging-4.21 branch]
