Provided a path for building MeshDescriptions for static meshes at runtime, and supporting API.
Clarified use of attributes for static meshes; now some attributes may be considered optional.
Added FStaticMeshAttributes, used for fetching and registering all the attributes required by a static mesh.
Added Blueprint interface for building meshes.
Deprecated a number of existing APIs:
- FMeshDescription methods which referred explicitly to static mesh specific attributes
- StaticMesh attribute registration has been moved to FStaticMeshAttributes
#rb none
[CL 9123037 by Richard TalbotWatkin in Dev-Editor branch]
#jira UE-79195
#rb jimmy.andrews
#rn Add an fbx option to allow compute normals to use weight by area and angle for both staticmesh and skeletalmesh. Add also a staticmesh build options for the feature.
[CL 8364158 by Alexis Matte in Dev-Editor branch]
Deprecated direct access to UStaticMesh::SourceModels, SectionInfoMap and OriginalSectionInfoMap.
Added new accessors for getting individual SourceModels, or the entire array.
#rb none
#jira none
[CL 7668661 by Richard TalbotWatkin in Dev-Editor 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]
Move triangulation from editable mesh to MeshDescription
Fix the edge creation when importing a fbx to mesh description
Add automation tests for mesh description, add some conversion tests
Load orion monolith02 level succesfully using meshdescription instead of rawmesh
#rb none
[CL 3817088 by Alexis Matte in Dev-Geometry branch]
