GeometryCore: Add bClearExisting option to FDynamicMeshAttributeSet::EnableMatchingAttributes(). Default true is old behavior. New behavior, when false, is to preserve existing attribute set counts/values. Also now copying group and weight layer names if not set.
ModelingTools: CombineMeshesTool now uses EnableMatchingAttributes instead of only explicitly matching UV layers, so group and weight layers are copied properly to duplicates
MeshConversion: DynamicMeshToMeshDescription now generates unique names in ConvertPolygroupLayers and ConvertWeightLayers. Previously if multiple attribs had the same name (eg NAME_None), output MeshDescription would only have a single attrib w/ that name
#rb david.hill
#preflight 62a116439a3e81e904dde76f
[CL 20570919 by Ryan Schmidt in ue5-main branch]
- Allow the Attribute Editor Tool to add/delete weight maps from DynamicMesh targets.
- Enable transferring scalar weight maps back and forth between DynamicMesh and MeshDescription.
- Serialize TDynamicAttributeBase::Name when its subclasses are serialized
#rb nathan.mitchell
#preflight 62439b2ab6084b9832307f6e
[CL 19551734 by tyson brochu in ue5-main branch]
- add FStaticMeshLODResourcesAdapter in MeshConversions module, wrapper that presents StaticMesh LODResources mesh (ie Section buffers) with an API compatible with GeometryCore mesh templates
- add TMeshWrapperAdapterd in GeometryCore, this is a shim for getting any template-API-compatible mesh into a FTriangleMeshAdapterd specifically (required to call some non-template mesh processing functions)
- add support for using StaticMesh LODResources meshes in FMeshSceneAdapter instead of source meshes, controlled by build options flag
- add FMeshSceneAdapter build options flags specifying whether UV/Normal queries are required (default true)
- when not required, the loaded MeshDescriptions and created DynamicMeshes are packed into FColliderMesh which has a smaller memory footprint, allowing the larger meshes to be freed
- to support above, the SpatialWrappers in MeshSceneAdapter.cpp have been refactored extensively
- added FCompressedMeshSpatialWrapper which Builds from a temporary FDynamicMesh3 into a FColliderMesh, supports all the same options as FDynamicMeshSpatialWrapper (so a drop-in replacement with less memory usage, but no UV/Normal queries)
- added FBaseMeshSpatialWrapper, base class for existing FDynamicMeshSpatialWrapper and new FCompressedMeshSpatialWrapper that has shared config settings (can more more here in the future)
- added FStaticMeshLODResourcesMeshSurfaceAdapter, similar toFMeshDescriptionTriangleMeshSurfaceAdapter, a mesh adapter that filters out any geo that doesn't have a Surface-domain material
- refactored TStaticMeshSpatialWrapper into TStaticMeshSpatialWrapperBase and subclasses FStaticMeshSourceDataSpatialWrapper and FStaticMeshRenderDataSpatialWrapper, for source mesh vs render mesh
- added FCompressedStaticMeshSpatialWrapper, variant of FStaticMeshSourceDataSpatialWrapper that stores to a FColliderMesh and releases the source MeshDescription
- SpatialWrapperFactory() now has logic to build from render mesh vs source mesh vs compressed source mesh
- moved initial SpatialWrapper construction from AddActors() phase to Build() phase, because now it depends on build settings
- add EMeshDataSourceLODPolicy to IGeometryProcessing::FOptions, with LOD0 Source and LOD0 RenderMesh options
- ApproximateActorsImpl now provides/handles this policy setting, and configures FMeshSceneAdapter to not need UV/Normal queries (not required in this context)
- add bUseRenderLODMeshes option in FMeshApproximationSettings to expose render vs source mesh control at user level
#rb sebastien.lussier, rinat.abdrashitov
#jira UE-141256
#preflight 6206db44054c2e38c473be5d
#rnx
#ROBOMERGE-AUTHOR: ryan.schmidt
#ROBOMERGE-SOURCE: CL 18963126 in //UE5/Release-5.0/... via CL 18963829 via CL 18964587
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v917-18934589)
[CL 18964607 by ryan schmidt in ue5-main branch]
#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]
Fixed MultiTexture UV channel parameter not propagating to evaluator in BakeTexture.
Fixed crash when using invalid source UV channel for BakeAll.
#rb michael.balzer
#rnx
#jira none
#preflight 619eea61801b361978d47905
#ROBOMERGE-AUTHOR: lonnie.li
#ROBOMERGE-SOURCE: CL 18300009 in //UE5/Release-5.0/... via CL 18300013
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v895-18170469)
[CL 18300019 by lonnie li in ue5-release-engine-test branch]
This represents UE4/Main @17911760, Release-5.0 @17915875 and Dev-PerfTest @17914035
[CL 17918595 by aurel cordonnier in ue5-release-engine-test branch]
ModelingComponents: handle situations where MeshDescription has more Sections than Material Slots. See code comments for more details.
#rb david.hill
#rnx
#jira none
#preflight 6142107c4778fa0001279045
#ROBOMERGE-AUTHOR: ryan.schmidt
#ROBOMERGE-SOURCE: CL 17522274 in //UE5/Main/...
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v870-17433530)
[CL 17522294 by ryan schmidt in ue5-release-engine-test branch]
- Added new FindNearestHitTriangle overload with bary coords.
- Refactored BakeMeshAttributeMapsTool into common base class with new MultiMesh (N-to-1) variant.
- Extended MeshDescriptionAdapter to support UVs.
- Added new queries on IMeshSpatialWrapper for mesh attributes.
#rb ryan.schmidt
#rnx
#jira UETOOL-3395
#preflight 613fb4c3a70fa0000131ff77
#ROBOMERGE-AUTHOR: lonnie.li
#ROBOMERGE-SOURCE: CL 17497155 in //UE5/Main/...
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v870-17433530)
[CL 17497176 by lonnie li in ue5-release-engine-test branch]
