The tutorial details how to make a walk around level in Unity3d.
Make Weird Stuff in Unity Tutorial
An in depth hands on way of making cool looking stuff in Unity super quickly with no programming
(workshops.ko-opmode.com)
I found this and figured I would not be the only one on this forum that might like to give it a try. I gave it a quick and simple try this afternoon and it worked with simple models. From an archviz stand point I think it could hold a lot of promise.
I will be trying some of my more complex models in the future.
Hopefully this helps others!