HandConeGrid
Also known as HCG
Bare-hand Flower Cone: the non-dominant hand casts a cone whose size you set by spreading your fingers; pinch to lay its contents out on a grid, then point and pinch to pick the target.
How it works
Area selection: the non-dominant hand casts a cone, widened or narrowed by spreading the fingers or bringing the fingertips together, and a dominant-hand pinch confirms the area. All objects inside are laid out on a grid; the user points at the target with the dominant hand and pinches again. Pinching on blank space beside the grid redoes the area selection. It was slightly slower but the most accurate, especially in high density, and the most preferred. Evaluated (N=18, Meta Quest 2 hand tracking) against MultiFingerBubble with 10 cm spheres in a 1 m cube 0.8 m in front of the user, at two densities.
Papers
- Rongkai Shi, Jialin Zhang, Yong Yue, Lingyun Yu, Hai-Ning Liang (2023). Exploration of Bare-Hand Mid-Air Pointing Selection Techniques for Dense Virtual Reality Environments. Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems (CHI EA '23) doi:10.1145/3544549.3585615
- Sichun Huang, Jian Wu, Runze Fan, Sio Kei Im, Lili Wang (2025). HandBrush for Efficient Object Grouping in Virtual Environment with Bare-Hand. International Journal of Human-Computer Interaction 41(15), 9797-9821 doi:10.1080/10447318.2024.2428429