CAD-3D was a CAD program for the Atari ST.

This program can convert a drawing to something understood by PovRay.

Example: this converts to this (note that I rotated the camera, added more lighting and enabled radiosity) which looks like:

House for sale: Kerstroosgaarde 27, Gouda, The Netherlands.

For contact info, see this page.

Via GitHub: and via patreon you can sponsor me and my work.