In my collection of VR documents and software "artifacts" - I have a collection of QuickBasic 4.5 programs (source code) that this French team built (circa late 1990s IIRC) to generate various VRML models and "worlds" using code. I don't recall how abstracted it was, but I thought it unique enough to save it for my archive. I should really go through that collection and release it in some manner - I have tons of interesting stuff, much of which has disappeared from the web. Maybe an upload to archive.org would be in order...