Earlier quoted context omitted.
An interesting thing that's happening alongside 3d printing is the emergence of visual programming languages specialized for geometry, the most popular being Grasshopper.
Is it really the most popular? It's a plugin for a $1000 CAD program which seems to dramatically limit who can use it.
If you do a google image search for 'grasshopper geometry' or 'grasshopper architecture', you'll see a lot of buildings designed with grasshopper, including many which have been constructed.
There are other interesting things going on, like automated construction with robots or laser cutters. For example, theverymany builds massive organic structures out of laser-cut metal pieces, and the living (new york) did some interesting things with robotic placement of bricks.
New design tools specialized for automated manufacturing methods.