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Shiva's Rangoli: Tangible Storytelling through Diegetic Interfaces in Ambient Environments

This paper describes the underlying motivation, creation process, and evaluation outcomes of Shiva's Rangoli, a tangible storytelling installation that allows readers to impact the emotional tone of a narrative by sculpting the ambience of their space. Readers interact with a tangible interface that acts as a boundary object between the reader and the fictional world. We discuss how these kinds of interfaces can engage readers to feel like they are a part of the story, endow them with responsibility, and blur the line between real and fictional worlds.