Abstract

Extended Reality (XR) has advanced audiovisual immersion, yet haptic feedback, especially for the lower body, remains limited. We present RoboHaptics, the first system to explore lower-body haptics using commercial quadruped robots. RoboHaptics leverages its freestanding and reconfigurable nature to deliver both active and passive tactile feedback without requiring worn devices. We contribute a design space for quadruped-mediated haptics, a software toolkit with a programmable library of tactile effects, and empirical evaluations showing that quadruped robots can deliver safe force feedback from 3–28 N (below nociceptive thresholds), reach lower-body locations with precision of 2.1–5.1 mm and accuracy of 3.7–17 mm, and support a wide range of tactile effects. A 12-participant study further revealed significant inputs into how RoboHaptics can be used to increase realism and immersion by providing lower-body haptic feedback. Together, our work establishes quadruped robots as a versatile platform for mobile, off-body haptics in XR.

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Materials