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Virtual Worlds

Virtual worlds are simulated environments with internal rules inspired at least in part by real physics laws. This type of environment has been fruitful for ALife research, for it allows quick implementation of reality-inspired behavior that can be visualized as computer animations [123,124,114,101,81].

The surreal beauty of some artificial agents in virtual worlds has had a profound impact in the field, most famously Karl Sims' virtual creatures, made of rectangular prisms, evolved life-like behaviors and motion under a careful physical simulation (fig. 1.2).

Figure 1.2:``Virtual Creatures'' by K. Sims[123] have evolved morphology and behaviors. They behave according to some physical laws (inertia, action-reaction) but lack other reality constraints: blocks can overlap each other, movements are not generated by motors, etc.


Pablo Funes