A while back I created a small project for drawing 3D wireframe graphics using the Common Lisp LTK interface to Tk. It's slow (uses inefficient matrix algorith

A while back I created a small project for drawing 3D wireframe graphics using the Common Lisp LTK interface to Tk. It's slow (uses inefficient matrix algorithms, uses Tk, etc.) but it's "fast enough" for some simple 3D scenes. Not very practical for real-life use, but it was fun. https://github.com/jl2/ltk3d https://github.com/jl2/ltk3d FWIW, it's not doing hidden line removal, IIRC I was careful to pick a viewing location that made it look good.