Defense uses 3D modeling.

The defense department is testing technology that allows the first soldiers to enter a city to map it with 3d technology and send that 3d map, buildings, streets and all, back to headquarters.

Imagine if the first soldiers to enter an enemy city could map it street by street, recording every window and doorway of the urban battlefield in an accurate 3D model that could instantly be relayed to their comrades at base - and updated in near-real time. Thanks to funding from the U.S. military and cooperation from the Virginia engineering firm SET Associates (Science, Engineering, Technology), engineers at the University of California, Berkeley have found a way to do just that.

Imagine, instant mapping of terrain.