Extendlibur: Dynamic Haptic Retargeting for Length-Mismatched Proxies in Co-Located VR
summary
System uses optical tracking with a server-client retargeting pipeline that shifts users’ virtual hands to align a single physical stick with mismatched virtual tool lengths. A user study tests 81 length combinations and fits nine psychometric functions to find detection thresholds; with a 60 cm physical prop the safe perceptual range is 39–83 cm. A follow-up comparison against Vive controllers in sword-fight and cooperative tasks shows significantly higher reported realism and enjoyment.
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chapters (9)
- 0:00Introduction
- 1:05Problem with length mismatch
- 2:32Haptic retargeting concept
- 4:18Dual-user retargeting system
- 5:41User study overview
- 6:45Results and safe zone
- 7:27User experience evaluation
- 7:48Future improvements
- 8:30Q&A session
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