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Browsing by Author "Bao, Yueming"

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    Demonstration of Geppetteau: Enabling haptic perceptions of virtual fluids in various vessel profiles using a string-driven haptic interface
    Sagheb, Shahabedin; Liu, Frank; Vuong, Alex; Dai, Shiling; Wirjadi, Ryan; Bao, Yueming; Likamwa, Robert (ACM, 2022-10-29)
    Liquids sloshing around in vessels produce unique unmistakable tactile sensations of handling fluids in daily life, laboratory environments, and industrial contexts. Providing nuanced congruent tactile sensations would enrich interactions of handling fluids in virtual reality (VR). To this end, we introduce Geppetteau, a novel string-driven weight-shifting mechanism capable of providing a continuous spectrum of perceivable tactile sensations of handling virtual liquids in VR vessels. Geppetteau’s weight-shifting actuation system can be housed in 3D-printable shells, adapting to varying vessel shapes and sizes. A variety of different fluid behaviors can be felt using our haptic interface. In this work, Geppetteau assumes the shape of conical, spherical, cylindrical, and cuboid flasks, widening the range of augmentable shapes beyond the state-of-the-art of existing mechanical systems.
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    Geppetteau: Enabling haptic perceptions of virtual fluids in various vessel profiles using a string-driven haptic interface
    Sagheb, Shahabedin; Liu, Frank Wencheng; Vuong, Alex; Dai, Shiling; Wirjadi, Ryan; Bao, Yueming; Likamwa, Robert (ACM, 2023-02-26)
    What we feel from handling liquids in vessels produces unmistakably fuid tactile sensations. These stimulate essential perceptions in home, laboratory, or industrial contexts. Feeling fuid interactions from virtual fuids would similarly enrich experiences in virtual reality. We introduce Geppetteau, a novel string-driven weight shifting mechanism capable of providing perceivable tactile sensations of handling virtual liquids within a variety of vessel shapes. These mechanisms widen the range of augmentable shapes beyond the state-of-the-art of existing mechanical systems. In this work, Geppetteau is integrated into conical, spherical, cylindrical, and cuboid shaped vessels. Variations of these shapes are often used for fuid containers in our day-to-day. We studied the efectiveness of Geppetteau in simulating fne and coarse-grained tactile sensations of virtual liquids across three user studies. Participants found Geppetteau successful in providing congruent physical sensations of handling virtual liquids in a variety of physical vessel shapes and virtual liquid volumes and viscosities.