3D House

Hi,

I need to make something similar to this below:
http://a-hus.se/Templates/House3DModel1.aspx?PageID=3e89aec1-7bd6-40c2-b126-64527d8759ed

The above example was made of like 50-100 images I think, because you get these ugly steps when spinning around. Is there any way to get it smoother?

Cheers T