WingEd is a (work in progress) 3D modeling tool focused on game dev and low-poly level design / prototyping. Its interface is inspired by SketchUp, Hammer 2, and Doom Builder.
WingEd works on Windows only. Download latest build (unstable, for testing only!)
See WingEd interface documentation
WingEd only operates on closed manifold surfaces. Internally it uses the half-edge data structure to represent meshes.
WingEd makes use of persistent data structures to store editor state, using the immer library. This allows for simple and robust implementation of undo, and rollback after errors. In the future it could help with adding concurrency.