Resumen
The article focuses on animation control for real-time virtual humans. The computation speed and control methods needed to portray 3D virtual humans suitable for interactive applications have improved dramatically in recent years. Real-time virtual humans show increasingly complex features along the dimensions of appearance, function, time, autonomy and individuality. The virtual human architecture, which researchers have been developing at the University of Pennsylvania is representative of an emerging generation of such architectures and includes low-level motor skills, a mid-level parallel automata controller and a high-level conceptual representation for driving virtual humans through complex tasks. The architecture, called Jack, provides a level of abstraction generic enough to encompass natural language instruction representation as well as direct links from those instructions to animation control. Building models of virtual humans involves application-dependent notions of fidelity.