BREP

Source repo https://github.com/mmiscool/BREP

A feature-based modeling playground experimenting with BREP-style workflows on top of triangle meshes. It combines robust manifold CSG (via the Manifold library) with a simple face and edge representation, a history pipeline, and Three.js visualization. Import meshes (STL), repair and group them into faces, then perform boolean operations, fillets, chamfers, sweeps, lofts, and more.

This project is actively evolving; expect rough edges while APIs settle.

Documentation Map

• Highlights
• What's New
• Getting Started
• UI Overview (Browser)
• How It Works
• BREP Model and Classes
• File Formats: Import and Export
• Plugins and Examples
• Recent Inspector Improvements
• Inspector Todo

Feature Dialog Screenshots

• Run pnpm dev and open http://localhost:5173/feature-dialog-capture.html.
• Use the capture helper to grab updated PNGs for every feature dialog or download them as a ZIP for docs.

Mode Guides

• Modeling Mode
• Sketch Mode
• PMI Mode
• Assembly Constraint Solver

Feature Guides

• Primitive Cube — Implemented
• Primitive Cylinder — Implemented
• Primitive Cone — Implemented
• Primitive Sphere — Implemented
• Primitive Torus — Implemented
• Primitive Pyramid — Implemented
• Plane — Implemented
• Datum — Implemented
• Sketch — Implemented
• Extrude — Implemented
• Sweep — Implemented
• Tube — Implemented
• Loft — Implemented
• Revolve — Implemented
• Mirror — Implemented
• Boolean — Implemented
• Fillet — Implemented
• Chamfer — Implemented
• Remesh — Implemented
• Import 3D Model (STL or 3MF) — Implemented
• Image to Face (image trace) — Implemented
• Transform (move, rotate, scale) — Implemented
• Pattern Linear — Implemented
• Pattern Radial — Implemented

License

See LICENSE.md. This project uses a dual-licensing strategy managed by Autodrop3d LLC.

Contributing

See CONTRIBUTING.md for guidelines on submitting pull requests, reporting issues, and participating in discussions.