Issues

• models.list.onItemSet fires before the worker knows the model, so model calls from it fail with "Model not found"

  ThatOpen/engine_fragment#343 · Filter by author Chaosnico9000 opened on Oct 23, 2026

• Importer parses each IFC twice: opt-in parseOnce to reuse the geometry step's model

  ThatOpen/engine_fragment#342 · Filter by author NikolayBorissovASTRA opened on Oct 18, 2026

• Clipping opacity

  feature
  ThatOpen/engine_fragment#340 · Filter by author ShaMan123 opened on Oct 14, 2026

• FEAT: handing control over update cycle to consumer

  ThatOpen/engine_fragment#339 · Filter by author ShaMan123 opened on Oct 13, 2026

• Upgrade stale frag on load

  feature
  ThatOpen/engine_fragment#316 · Filter by author ShaMan123 opened on Oct 10, 2026
  2

• Performance issues loading very large IFC files (~2 GB)

  ThatOpen/engine_fragment#315 · Filter by author Leonidasuzcategui opened on Oct 7, 2026
  1

• TS bundle: internal vs. public methods

  feature
  ThatOpen/engine_fragment#312 · Filter by author ShaMan123 opened on Sep 29, 2026

• Replacing web-ifc's tape reader with stream parser

  ThatOpen/engine_fragment#310 · Filter by author ShaMan123 opened on Sep 26, 2026
  2

• Outliner loses the outline of items whose tiles are not realized

  ThatOpen/engine_fragment#303 · Filter by author ShaMan123 opened on Sep 13, 2026
  3

• IfcSpace “Roof” rendered as visible geometry in That Open BIM App, unlike Dalux and BIMvision

  bug
  ThatOpen/engine_fragment#301 · Filter by author cubalibre opened on Sep 12, 2026

• Proposal: a native SkpImporter (SketchUp → Fragments), parallel to IfcImporter

  ThatOpen/engine_fragment#296 · Filter by author iamahsanmehmood opened on Sep 10, 2026
  2

• IfcParserStream ref resolution

  feature
  ThatOpen/engine_fragment#293 · Filter by author ShaMan123 opened on Sep 10, 2026

• Unexpected selection grouping when loading an IFC in the your official BIM App template

  bug
  ThatOpen/engine_fragment#274 · Filter by author cubalibre opened on Sep 1, 2026
  2

• LOD (WIRES) box outlines can remain visible for items hidden via setVisible under heavy update traffic

  ThatOpen/engine_fragment#265 · Filter by author stokuewe opened on Aug 10, 2026
  1

• IfcImporter.process(): observed nondeterministic geometry-to-item assignment across repeated runs on the same input

  ThatOpen/engine_fragment#260 · Filter by author Amontilladow opened on Aug 2, 2026
  2

• Circular-profile IfcExtrudedAreaSolid (e.g. IFCFLOWSEGMENT/pipe) renders flat, same underlying issue as #156

  ThatOpen/engine_fragment#259 · Filter by author Amontilladow opened on Aug 1, 2026
  2

• IfcImporter.process() aborts on IFC files >~2GB: WASM linear memory ceiling hit during conversion, even with readFromCallback chunked input

  bug
  ThatOpen/engine_fragment#258 · Filter by author jamess166 opened on Jul 28, 2026
  1

• Any plan extending Frag to support other Cad file types?

  ThatOpen/engine_fragment#257 · Filter by author simpleSketche opened on Jul 27, 2026
  1

• CI: deployments/releases

  feature
  ThatOpen/engine_fragment#254 · Filter by author ShaMan123 opened on Jul 23, 2026
  5

• Merge split Fragments

  feature
  ThatOpen/engine_fragment#251 · Filter by author ghost opened on Jul 20, 2026
  4

• Editing performance: per-item scans of the edit requests list and O(N²) delta rebuild in edit()

  ThatOpen/engine_fragment#247 · Filter by author rihokirss opened on Jul 13, 2026
  2

• Improve Fragments performance for huge datasets

  feature
  ThatOpen/engine_fragment#228 · Filter by author ngirgisConsevo opened on Jun 7, 2026
  4

• split config

  feature
  ThatOpen/engine_fragment#180 · Filter by author ShaMan123 opened on Mar 22, 2026
  25