XR HEADSET FOCAL
STUDY
Dalhousie University · Vertex Lab · 2024–2025 · Co-author, paper under review
This study explored how XR headset design affects 3D interaction, comparing varifocal and fixed-focus Varjo XR-4 headsets in terms of movement time, error rate, and throughput (THP). We also analyzed the effects of vergence–accommodation conflict (VAC) and foveated rendering.
My contributions:
- Co-built a Unity3D + C# experiment platform with ray pointing, gaze tracking, and automated logging.
- Processed 13M+ gaze records and conducted three-way ANOVA and ART analysis using R.
- Designed and administered SUS, NASA-TLX, SSQ, and VRSQ to assess usability and simulator sickness.
- Visualized results; co-authored the submitted paper.
Key Result: The varifocal headset improved throughput by 7.9% and reduced movement time by 3%.