More information:
https://www.graphisoft.com/archicad/r...
Rhinoceros - Grasshopper - ARCHICAD tutorial videos
This video clip shows how to create a parametric tower by using Rhinoceros, Grasshopper and ARCHICAD. The new connection between the applications offers bi-directional geometry transfer. The basic geometrical shapes created in Rhinoceros now can be translated into full-fledged BIM elements in ARCHICAD while adding algorithmic editing functionality thanks to Grasshopper.
http://archicad.com/
http://www.rhino3d.com/
http://www.grasshopper3d.com/
Free ARCHICAD Download: http://www.graphisoft.com/downloads/