“haptics for VR walls” is a work by Pedro Lopes, Sijing You, Lung-Pan Cheng, Sebastian Marwecki, and Patrick Baudisch at the Hasso Plattner Institut.
The purpose of the experiment is to determine how to add haptics to walls and other heavy objects in virtual reality. When a user tries to push such an object, our system actuates the user’s shoulder, arm, and wrist muscles by means of electrical muscle stimulation, creating a counter force that pulls the user’s arm backwards. Our device accomplishes this in a wearable form factor.
In our first user study, participants wearing a head-mounted display interacted with objects provided with different types of EMS effects. The repulsion design (visualized as an electrical field) and the soft design (visualized as a mag- netic field) received high scores on “prevented me from passing through” as well as “realistic.”
In a second study, we demonstrate the effectiveness of our approach by letting participants explore a virtual world in which all objects provide haptic EMS effects, including walls, gates, sliders, boxes, and projectiles.