NeXuS[1] is a framework for the development of Augmented Reality (AR) applications that utilises perceptive intentional agents to create rich interactive environments where traditional boundaries between virtual and physical spaces may be overcome. The NeXuS framework demonstrates how behavioural realism can be achieved by placing such agents within an AR environment. Fig. 1 illustrates how a NeXuS Teen agent’s perceived beliefs about its environment alters the state of its visual avatar. When a virtual light source located on a marker enters the line of sight of the Teen’s avatar, the agent must change its avatar’s position in the world to one that it deliberately reasons to be most appropriate for avoiding the light’s ‘glare’.
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