This paper proposes an interactive attraction system, "Groveling on the Wall," which provides an experience of groveling on the walls/ceilings of a virtual building with a gravity illusion (Figure1). To create a gravity illusion for the system, which is safer than real experiences, we developed two physical mechanisms: the groveling interface and the gradient controls of the user's body. We prepared 1) gradient controls of both the user's back and head, and 2) sudden fall control of the user's head. The groveling interface detects the rotations of four caterpillar belts for both legs and hands. The virtual world visualized in an HMD (Head-mounted Display) corresponds to the user's state. The proposed system gives the user a special sense of groveling on the walls/ceilings, with direct fear of falling and preliminary fear of sliding down when the user tries to move forward.
['Kaede Ueno', 'Naoto Yoshida', 'Tomoko Yonezawa']
Groveling on the wall: interactive VR attraction using gravity illusion