+ also improves texturing options for generalized cylinder (needed b/c that's what we use to make the cutting geometry)
+ also separates the "embedded edges" concept from the "error / problem" edges, and always visualizes the embedded edges (for the boolean, these are different edges; also visualizing the embedded edges makes it a lot easier to understand what the "Insert Polygon" option is doing)
#rb david.hill
[CL 14872192 by Jimmy Andrews in ue5-main branch]
- add Name FName to TDynamicAttributeBase, update Copy functions in various subclasses to copy this name
- add PolygroupLayers array to FDynamicMeshAttributeSet, add code get/set, call update functions where necessary. Also move some existing function implementations to cpp file
- update TDynamicMeshAttributeChange, DynamicMeshEditor to handle these new attributes
- AttributeEditorTool now creates polygroup layers as Triangle attributes
- MeshDescriptionToDynamicMesh now creates PolygroupLayer attributes from any non-reserved Triangle int32 attributes
- DynamicMeshToMeshDescription now syncs PolygroupLayer attributes with MeshDescription in new ConvertPolygonGroupLayers() function
- add TSet variant of FMeshConnectedComponents::GrowToConnectedTriangles
#rb jimmy.andrews
#rnx
#jira none
[CL 14816587 by Ryan Schmidt 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]
