Transcalibur: Weight Moving VR Controller for
Dynamic Rendering of 2D Shape Using Haptic Shape Illusion
Jotaro Shigeyama
Takeru Hashimoto
Shigeo Yoshida
Taiju Aoki
Takuji Narumi
Tomohiro Tanikawa
Michitaka Hirose
Transcalibur : Shape changing VR Controller
We introduce a dynamic weight moving VR controller for 2d haptic shape rendering using a haptic shape illusion. This allows users to perceive the feeling of various shapes in virtual space with a single controller.
Approach
We built a hardware prototype which consists of mechanisms to move weighted objects on a 2d planar space. This consists of two main mechanisms, angular mechanism and weight shifting mechanism.
Machanism
The angular mechanism enables to open/close two arms by rotating a worm gear drive connected to two worm wheels. These gears are fixed and connected to a PLA casing fabricated by a 3D printer, then both worm wheels are connected to arms. Each weight shifting mechanism also consists of a worm gear and worm wheel, connected to spur gear through a metal shaft then to a rack gear.
Evaluation
In order to evaluate how our prototype can alter shape perception of wielded VR objects, we conducted a user study. Users reported as follows: 'I felt the object shape has significantly changed', 'I felt a strong change in width direction'. These comments suggested that the proposed VR controller successfully renders a wide range of shape perception.
VR Applications
In SIGGRAPH2018, we are presenting demo VR applications using our VR controller (e.g. users can experience fighting against monster using various weapons with a single controller). We are also presenting an improved device based on our hardware which is lightweight and attachable to conventional VR controllers.
Publication
Jotaro Shigeyama, Takeru Hashimoto, Shigeo Yoshida, Taiju Aoki,
Takuji Narumi, Tomohiro Tanikawa and Michitaka Hirose:
Transcalibur : Weight Moving VR Controller for Dynamic Rendering of 2D Shape using Haptic Shape Illusion
SIGGRAPH 2018 Emerging Technologies.
Downloads
Paper
Video
[YouTube]
Press Kit
About Us
Jotaro Shigeyama
Master Student at the University of Tokyo,
Ph.D Candidate at Hasso Plattner Institute.
Takeru Hashimoto
Master Student at the University of Tokyo.
Shigeo Yoshida
Assistant Professor at the University of Tokyo.
Taiju Aoki
Master Student at the University of Tokyo(Almuni).
Takuji Narumi
Lecturer at the University of Tokyo.
Tomohiro Tanikawa
Associate Professor at the University of Tokyo.
Michitaka Hirose
Professor at the University of Tokyo.