VR Collide! Comparing Collision- Avoidance Methods Between Co- located Virtual Reality Users Abstract We present a pilot study comparing visual feedback mechanisms for preventing physical collisions between co-located VR users. These include Avatar (a 3D avatar in co-located with the other user), BoundingBox (similar to HTC’s “chaperone”), and CameraOverlay (live video feed overlaid on the virtual environment). Using a simulated second user, we found that CameraOverlay and Avatar had the fastest travel time around an obstacle, but BoundingBox had the fewest collisions at 0.07 collision/trial versus 0.2 collisions/trial for Avatar and 0.4 collisions/trial for CameraOverlay. However, subjective participant impressions strongly favoured Avatar and CameraOverlay over BoundingBox. Based on these results, we propose future studies on hybrid methods combining the best aspects of Avatar (speed, user preference) and BoundingBox (safety). Author Keywords VR; multi-user; co-location; collision avoidance. ACM Classification Keywords H.5.1. Multimedia Information Systems: Artificial, augmented and virtual realities; H.5.2. User Interfaces: Interaction Style; H.5.2. User Interfaces: Haptic I/O; I.3.7 3-D Graphics: Virtual Reality. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for third-party components of this work must be honored. For all other uses, contact the Owner/Author. Copyright is held by the owner/author(s). CHI'17 Extended Abstracts, May 06-11, 2017, Denver, CO, USA ACM 978-1-4503-4656-6/17/05. http://dx.doi.org/10.1145/3027063.3053180 Anthony Scavarelli Carleton University 1125 Colonel By Dr. Ottawa, ON K1S5B6, CA [email protected]Robert J. Teather Carleton University 1125 Colonel By Dr. Ottawa, ON K1S5B6, CA [email protected]Late-Breaking Work CHI 2017, May 6–11, 2017, Denver, CO, USA 2915
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VR Collide! Comparing Collision-Avoidance Methods Between Co-located Virtual Reality Users
Abstract
We present a pilot study comparing visual feedback
mechanisms for preventing physical collisions between
co-located VR users. These include Avatar (a 3D avatar
in co-located with the other user), BoundingBox
(similar to HTC’s “chaperone”), and CameraOverlay
(live video feed overlaid on the virtual environment).
Using a simulated second user, we found that
CameraOverlay and Avatar had the fastest travel time
around an obstacle, but BoundingBox had the fewest
collisions at 0.07 collision/trial versus 0.2 collisions/trial
for Avatar and 0.4 collisions/trial for CameraOverlay.
However, subjective participant impressions strongly
favoured Avatar and CameraOverlay over BoundingBox.
Based on these results, we propose future studies on
hybrid methods combining the best aspects of Avatar
(speed, user preference) and BoundingBox (safety).
Author Keywords
VR; multi-user; co-location; collision avoidance.
ACM Classification Keywords
H.5.1. Multimedia Information Systems: Artificial,
augmented and virtual realities; H.5.2. User Interfaces:
Interaction Style; H.5.2. User Interfaces: Haptic I/O;
I.3.7 3-D Graphics: Virtual Reality.
Permission to make digital or hard copies of part or all of this work for
personal or classroom use is granted without fee provided that copies are
not made or distributed for profit or commercial advantage and that
copies bear this notice and the full citation on the first page. Copyrights
for third-party components of this work must be honored. For all other
uses, contact the Owner/Author.
Copyright is held by the owner/author(s).
CHI'17 Extended Abstracts, May 06-11, 2017, Denver, CO, USA
users, and various timings for the BoundingBox fade-in
to find a better balance between immersion (the box
being invisible) and comfort (adjusting distance
threshold at which it fades in). Upcoming wireless
HMDs may also help decrease user anxiety about
movement in co-located VR, as there is no risk of
tripping over the other users’ cables.
Late-Breaking Work CHI 2017, May 6–11, 2017, Denver, CO, USA
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Late-Breaking Work CHI 2017, May 6–11, 2017, Denver, CO, USA