breve: a 3d Simulation Environment for Multi-Agent Simulations and Artificial Life

http://www.spiderland.org/

breve is a free, open-source software package which makes it easy to build 3D simulations of multi-agent systems and artificial life. Users define the behaviors of agents in a 3D world and observe how they interact. Agents behaviors can be written in Python, or using a simple scripting language called “steve”. breve includes physical simulation and collision detection so you can simulate realistic creatures, and an OpenGL display engine so you can visualize your simulated worlds.

breve is available for Mac OS X, Linux and Windows

NASA’s World Wind

http://worldwind.arc.nasa.gov/

World Wind lets you zoom from satellite altitude into any place on Earth. Leveraging Landsat satellite imagery and Shuttle Radar Topography Mission data, World Wind lets you experience Earth terrain in visually rich 3D, just as if you were really there.

Virtually visit any place in the world. Look across the Andes, into the Grand Canyon, over the Alps, or along the African Sahara.

A really good example of computers and graphics.