Today, Google announced that it will feature 3D models of entire metropolitan areas on mobile devices in Google Earth.

It’s doing so by working on new imagery and rendering techniques, combined with new computer vision tech that automates creation of cityscapes in full 3D. The 3D rendering will come complete with buildings, landscaping, terrain and all at a 45-degree angle.

It does this by using custom airplanes to gather 3D data, flying in controlled patterns. It then uses mapping techniques to create a 3D map of buildings and other objects.

The company hopes to have 3D coverage of metropolitan areas with a combined population of 300 million people. A PC version is also on its way but Google says that this will take a little longer as compatibility issues with the new algorithims and graphics remain.

The demonstration was run on an iPad, but the Google Earth update in 3D will come to both iOS and Android mobile devices.

Screen Shot 2012 06 06 at 10.17.12 AM 520x306 Google Earth Gets 3D Maps of Cities, New UI on iOS and Android

Google Earth is also getting a completely new interface that will take advantage of the new 3D data.