For AROS,MorpOS and OS4 it seems to be V3.6.
The rest of the world is using 3.7.
There is also some nice (3rd party) software for modeling, linked on their site.
POV-Ray 3.01 is the latest version for 68k.
But without a decent tool to create scenes ,with a visual feedback ,it is only of limited use. At least for me.
BTW I guess you mean DKBTrace when you refer to the "original name"...