#jira UE-122078
#rb Andrew.Davidson, Colin.McGinley
#preflight standard build
#ROBOMERGE-AUTHOR: fred.kimberley
#ROBOMERGE-SOURCE: CL 18817999 in //UE5/Release-5.0/... via CL 18818012 via CL 18822871
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v910-18824042)
[CL 18824721 by fred kimberley in ue5-main branch]
Submitted on behalf of fred.kimberley
#rb andy.davidson
#preflight 61f8729a5a026d2d19bb9ca6
#preflight 61f87a025a026d2d19be76ed
#ROBOMERGE-OWNER: andrew.davidson
#ROBOMERGE-AUTHOR: andrew.davidson
#ROBOMERGE-SOURCE: CL 18802361 in //UE5/Release-5.0/... via CL 18802891 via CL 18821557
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v908-18788545)
[CL 18821641 by andrew davidson in ue5-main branch]
FLinearColor has also been modified to make any double->float conversions explicit. Previously all 3D TVector versions were allowed to be implicit and thus could convert TVector<double> => FLinearColor => TVector4<float>.
Fixed up all engine and game casts. Added "//LWC_TODO: precision loss" around any explicit casts that previously were silently explicit and we may need to revisit for precision loss analysis.
#jira UE-122085
#rb Ben.Ingram, Andrew.Davidson
#preflight 61f24af473238441cb7bb0f1
#ROBOMERGE-AUTHOR: zak.middleton
#ROBOMERGE-SOURCE: CL 18751249 in //UE5/Release-5.0/... via CL 18751253 via CL 18751319
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v903-18687472)
[CL 18751326 by zak middleton in ue5-main branch]
* A more efficient version of AppendMeshDescription() for multiple meshes
* Properly reserve arrays to limit amount of temporary allocations
* Add triangles rather than polygons, avoid the costlier SourceMesh.GetPolygonVertexInstances() which had to perform a map lookup
#rb patrick.enfedaque
#robomerge Release-5.0-EarlyAccess
[CL 15419836 by Sebastien Lussier in ue5-main branch]
Common mistakes:
a) TRACE_CPUPROFILER_EVENT_SCOPE("Foo") or TRACE_CPUPROFILER_EVENT_SCOPE("FClass::Foo")
--> results in a timer named "Foo" or "FClass::Foo" (the quotes will be included in the name)
b) TRACE_CPUPROFILER_EVENT_SCOPE(TEXT("Foo"))
--> results in a timer named L"Foo" (L and quotes will be included in the name)
c) TRACE_CPUPROFILER_EVENT_SCOPE_TEXT(TEXT("Other Foo")) or TRACE_CPUPROFILER_EVENT_SCOPE_TEXT("Foo")
--> Slow! It will use dynamic string matching that adds an unnecessary overhead.
Correct usage:
TRACE_CPUPROFILER_EVENT_SCOPE(Foo)
TRACE_CPUPROFILER_EVENT_SCOPE(FClass::Foo)
TRACE_CPUPROFILER_EVENT_SCOPE_STR("Other Foo") // when timer name has spaces
TRACE_CPUPROFILER_EVENT_SCOPE_TEXT(*Foo.ToString()) // only if a dynamic name is really needed
#rb Catalin.Dragoiu
#fyi Marc.Audy, Krzysztof.Narkowicz, Rune.Stubbe, Michal.Valient
[CL 15134822 by ionut matasaru in ue5-main branch]
Removed attribute views.
Refactored MeshAttributeArray implementation.
Added a new GetArrayView() method for all types of TMeshAttributeRefs which can be used generically.
#rb Alexis.Matte
[CL 14651594 by Richard TalbotWatkin in ue5-main branch]
Prepared direct attribute access for deprecation, preferring use of APIs to access static mesh attributes.
Fixed recently merged Enterprise code to comply with new APIs.
Changed all tools to use triangle-centric iteration where possible.
Added new MeshAttributeArray APIs for querying attribute flags, and added a new Mandatory flag.
Various bug fixes.
#rb Alexis.Matte
[CL 13873755 by Richard TalbotWatkin in ue5-main branch]
- Removed hardcoded element type arrays (Vertices, Edges, Triangles etc.). Mesh element types can now be arbitrarily added, with any number of channels.
- Mesh element containers have a much leaner format; instead of sparse arrays, they are now represented by a simple bitarray, determining whether an index is used or not. Consequently, mesh topology is now entirely described with the attribute system, e.g. edge start and end vertices, triangle vertices, etc.
- Support added for attributes of arbitrary dimensions, e.g. float[4] or int[2].
- Support added for attributes which index into another mesh element container.
- Added FMeshElementIndexer: this is an efficient container for maintaining backward references from one element type to another; for example, edges have an attribute specifying which vertices are at each end (an attribute of type FVertexID[2]). With an indexer, it is possible to look up which edges contain a given vertex, even though this is not explicitly stored. Indexers are designed to do minimal allocations and update lazily and in batch when necessary.
- Added support for preserving UV topology in static meshes. UVs are now a first-class element type which may be indexed directly from triangles.
- Added the facility to access the underlying array in an attribute array directly.
- Triangles now directly reference their vertex, edge and UV IDs. Vertex instances are to be deprecated.
- Changed various systems to be triangle-centric rather than polygon-centric, as this is faster. Triangles are presumed to be the elementary face type in a MeshDescription, even if polygons are still supported. The concept of polygons will be somewhat shifted to mean a group of triangles which should be treated collectively for editing purposes.
- Optimised normal/tangent generation and FBX import.
- Deprecated EditableMesh, MeshEditor and StaticMeshEditorExtension plugins - these are to be removed, but they still have certain hooks in place which need removing.
#rb
[CL 13568702 by Richard TalbotWatkin in ue5-main branch]
