SWISH: Shifting Weight-based Interfaces for Simulated Hydrodynamics in Mixed-Reality Fluid Vessels.
2019
Mixed-reality haptic devices introduce a gateway to otherwise intangible virtual content, creating a life-like immersive experience. Congruent haptic sensation requires faithful integration of visual stimuli and perceived tactile sensation. Unfortunately, current commercial mixed-reality systems are unable to reproduce the physical sensation of fluid vessels, due to the shifting nature of fluid motion. To this end, we introduce SWISH, a novel type of ungrounded mixed-reality system, capable of affording the users a realistic haptic sensation of fluid behavior. We also present solutions to prominent challenges of rendering haptic fluid behavior, especially in coordinate translation and virtual adaptation to physical limitation. Our virtual-to-physical coupling uses Nvidia Flex's Unreal Engine integration, wirelessly controlling a motorized mechanical actuation system housed in a plastic "vessel''. In this paper we discuss the current state of SWISH and present results from our preliminary user study, followed by a description of our future planned phases.
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