HOOPS Exchange 2025.8.0

Technology Updates

Format Updates

Format Updated Version
Revit 2026
ACIS V34-V35 (2024-2025)

See File Formats for the list of all supported formats.

Third-Party Library Updates

The following third-party libraries have been updated:

Library New Version
ODA 26.8
Assimp 6.0.2

Open Design Alliance (ODA) binary dependencies were updated to version 26.8, providing support of Revit 2026 and resolving multiple related bugs.

We upgraded our third-party library Assimp to 6.0.2. Assimp is used for importing 3DS, DAE, FBX and OBJ files as well as exporting to FBX, GLTF and OBJ.

For more information about package content, see Acknowledgments and Distributing Your Application.

Platform Changes

New Features

Improved Revit Metadata Handling

Revit metadata processing has been enhanced in the following areas:

  • Duplicate metadata entries have been eliminated to prevent attribute redundancy.
  • Empty metadata attributes are now better filtered when m_bReadEmptyAttributes is set to A3D_FALSE, resolving cases where blank values were previously displayed despite the setting.

Support of Revit Connector Points

Connector points associated with a Revit element are now imported as A3DRiPointSet entities when m_bReadConstructionAndReferences is set to A3D_TRUE. These A3DRiPointSet entities are imported alongside the A3DRiRepresentationItem corresponding to the associated element.”

Documentation Changes

Our C API Reference is undergoing significant work to improve structure, navigation, and clarity. This release delivers the first part of those changes, with more revisions planned to further improve usability and readability.

Fixed Bugs

Issue Description
SDHE-23023 Updated Expat dependency from 2.6.3 to at least 2.7.0
SDHE-22975 Improved handling of SAT files
SDHE-22888 Upgraded FreeType dependency to 2.13.3
SDHE-22887 Upgraded FreeType dependency to 2.13.3
SDHE-22886 Upgraded Assimp dependency to 6.0.2
SDHE-22691 Upgraded LibPNG dependency to 1.6.39
SDHE-22690 Upgraded libRawLite dependency to 0.21.4
SDHE-22689 Upgraded libTIFF4 dependency to 4.7.0
SDHE-22688 Upgraded libXML2 dependency to 2.14.5
SDHE-22686 Upgraded OpenEXR dependency to version 3.3.4
SDHE-22650 Added direction information for extrude feature in CREO files
SDHE-22598 Fixed issue with missing tree elements in CATIA V5 R34/R35
SDHE-22471 Improved results from A3DCompareFacesInBrepModels
SDHE-22432 Fixed missing linked items for PMI in 3DXML CAD file
SDHE-22400 Improved Parasolid writer robustness on meeting latest Parasolid version requirements
SDHE-22098 Upgraded libXML2 dependency to 2.14.5
SDHE-21609 Upgraded libOpenJpeg dependency to 2.5.3
SDHE-21396 Added support for connector points for Revit files
SDHE-21257 Improved performance when exporting to GLB
SDHP-2997 Updated documentation to provide relationship between 3rd-parties and software components
SDHP-2979 Fixed image generated from PDF missing poster for 3D viewport
SDHP-2955 Fixed normal coordinates in HTML export
SDHP-2892 Upgraded libexpat dependency to 2.7.1
SDHP-2891 Upgraded Assimp dependency to 6.0.2