Recent SDK Updates

Open Design Alliance

May 29, 2025
Tags: News

What’s New in Recent SDK Updates

Performance, Compatibility, and Smarter Exports

ODA continues to enhance its SDK lineup with powerful improvements across the board—from kernel-level upgrades to advanced visualization, BIM, and interoperability features. Here’s a summary of the most notable changes introduced in our most recent two SDK releases.

Overall: Updated Libraries and Threading Tools

  • OpenSSL updated to 3.4.0 and cURL to 8.13.0, ensuring compatibility with the latest security and networking standards.

  • Support for iOS 18 has been added, while iOS 17 is deprecated.

  • A new non-blocking method, OdMutex::tryLock(), is now available for safer and more responsive multithreaded programming.

Visualize SDK: Optimized Selection and Geometry Handling

 

New Features

  • Dwg2Visualize now imports polylines as a single OdTvPolyline object when possible.

 

Performance Improvements

  • Significant speedups for the select() method using BlockCache, especially in crossing and window selection modes.

  • Improved performance and memory usage for highlight and unhighlight operations.

  • Fixes for non-indexed geometry in glTF import and lineweight rendering when geometry shaders are disabled.

Drawings SDK: Multi-mode Grip Points and Format Upgrades

 

New Features

  • Support for multimode grip points on multiple entity classes.

 

Import/Export Improvements

  • PDF import: Up to 7% faster with clipping enabled; clipping now respects line weights.

  • SVG import enhancements: proper hatch closure and support for nested SVG files.

  • Added access to elements in DGN “Nd” streams.

  • macOS DXF: line endings updated to \r\n.

IFC SDK: Multi-Threading and Enhanced DWG Export

  • Experimental multi-threading for entity composition via OdIfcModelContext.

  • New ComposeMode enum and methods for controlling threading strategy.

  • Ifc2Dwg adds exportDirectlyToModelSpace to convert items directly into DWG model space.

STEP SDK: Viewer Extensions and Geometry Support

  • OpenSTEPViewer adds support for QIF and IGES file loading.

  • Support added for hyperbolas and parabolas in StepGeom.

  • Single-file archives can now be unzipped directly into memory via zipio.

BimNv SDK: Improved Performance and Compatibility

  • ~50% faster PropertyTree construction, especially in files with AutodeskMaterial.

  • Better compatibility with multiple vectorization devices.

  • Separated rendering queues for opaque and transparent drawables for improved visualization.

  • Smarter embedding of textures and recap files during publish.

Publish SDK: More Reliable Export

  • Improved BIM to PRC export, including support for BmRbsCurve.

  • More stable multipage PDF export using GsCache.

  • Improved export of pseudo-italic TrueType fonts and geometry with linetypes.

 

More details, including full changelogs and usage examples, are available in your Personal Account.