Structure

IFClite merged PR #1182, a contribution from Mathias Sønderskov Schaltz that lets IFClite parse IFC inside the CAD process — as a plain DLL. The clean way to call a Rust engine from Grasshopper or Revit used to mean running a local server and talking to it over HTTP. But the moment something opens a port on a managed machine, enterprise IT lights up: firewall rules, security reviews, the whole dance. The FFI wires IFClite straight into the process instead. A new ifc-lite-ffi crate builds with crate-type = ["cdylib"] to ifc_lite_ffi.dll, and the host loads it like any other library. No server. No port. No network. Just a function call. ...

IFClite has merged PR #1024, replacing its two boolean backends with a single pure-Rust exact CSG kernel. The browser build previously relied on the C++ Manifold library via WASM cross-compilation; the native server path used an in-tree BSP port. Both are gone. The new kernel is a clean-room mesh-arrangement implementation: operand meshes are intersected conformingly (shared symbolic vertices for line-plane and triple-plane intersection points), re-triangulated under exact predicates, then classified for difference, union, or intersection. Every topology decision routes through a predicate cascade (interval filter, fixed-width tier, BigRational oracle) built on Shewchuk adaptive predicates for explicit coordinates and Cherchi-style indirect predicates (Attene 2020) for implicit intersection geometry. The public API (processGeometryBatch, SDK surface) is unchanged; consumers see different triangulations wherever booleans fire. ...

OpenAEC Foundation has published an open source software ecosystem for the AEC sector, covering buildings, infrastructure, civil engineering, and site workflows. The project presents a broad catalogue of tools including Open PDF Studio, Open 2D Studio, Open CAD Studio, Open Geotechniek Studio, Monty IFC Viewer, BIM Validator, Open Energy Studio, Open Field Studio, BCF Manager Studio, and others, with source code collected under the OpenAEC Foundation GitHub organisation. ...

Petr Krysl has announced pystran, an open source Python package for structural analysis. The project started as a learning tool and remains a work in progress, but it already supports a useful set of structures for experimentation, teaching, and feedback from early users. ...

Work is underway on Bonsai Viewer, a dedicated free software IFC viewer for model coordination and review. The gap is straightforward: there is no mature free software equivalent of Revizto, BIMcollab, Solibri, and similar coordination viewers. Bonsai Viewer aims to fill that gap, while also making it easier for others to build their own desktop, tablet, kiosk, on-site screen, or web-based IFC viewer applications on top of IfcOpenShell. ...

Louis Trümpler announced that point clouds are coming to IFClite as part of the same browser-native openBIM workflow, rather than as a separate viewer or visual overlay. The first pass includes LAS / LAZ streaming, E57 / PLY / PCD readers, Web Worker decoding, WebGPU point rendering, colour modes for RGB, classification, intensity, height, and fixed colour, plus federation-aware point picking. ...

Bonsai v0.8.5 has been released with 962 new features and fixes. The release is described as a “line in the sand”: a compatibility and consolidation checkpoint driven partly by Blender 5.1 support, the move to Python 3.13, and a lot of structural work preparing for larger changes ahead. ...

Olympus has been open sourced as a toolkit for building and prototyping 3D web applications for architecture, engineering, construction, and operations. The project combines a Three.js-based 3D editor, Monaco code editor, Chart.js dashboards, undo-redo, configurable UI, and an extensible addon system. ...

Louis Trümpler announced federated loading support in IFClite, a browser-native IFC viewer and toolkit built with WebGPU and Rust/WASM. For IFC4.3 and earlier workflows, federation means loading multiple IFC models side by side with collision-safe IDs, per-model visibility, unified spatial hierarchy handling, and selection across model boundaries. ...

Bonsai v0.8.4 has been released with 1111 new features and fixes. The release brings Bonsai compatibility with Blender 5.0, which matters because Blender 5.0 is a major platform update and required compatibility work throughout the add-on. ...