CAD Importer
Imports professional CAD and BIM files into Unity. Seven formats in, simulation-ready geometry out.
- Role
- Simulation Engineer
- Company
- Open source (MIT)
- Period
- 2026
- Status
- Open source
- 7CAD / BIM formats
- ~6×Geometry reduction
- Pure C#No native plugins
What I did
- Formats: STL, PLY, OBJ, glTF/GLB, STEP, IGES and IFC, the files engineering teams actually hand over.
- Processed on import: meters and Y-up, hierarchy and pivots preserved, welded, smooth normals with hard edges, per-part LODs, PBR materials, simplified colliders.
- Assemblies stay intact, so robot joints and simulation rigging work downstream. Georeferencing keeps multi-file sites aligned.
- IFC / BIM support with an IFC Inspector that recolors by type, storey or structural category.
- Three entry points: drag-and-drop, a batch window with progress tracking, and an async runtime API for player builds.
- Optimized output: ~6× geometry reduction from welding, quadric-error LODs at 100/50/15%, and 16-bit indices.
