Linear Offset
Also known as Arm Extension (linear)
A virtual hand cursor whose offset grows in proportion to the head-to-hand distance, a linear version of Go-Go's arm extension.
How it works
The cursor is displaced along the head-to-hand direction by an amount proportional to how far the hand is from the head. For targets out of reach it outperformed the fixed-length and Go-Go offsets in the study; for targets within reach no offset was best.
Papers
- Jialei Li, Isaac Cho, Zachary Wartell (2018). Evaluation of Cursor Offset on 3D Selection in VR. ACM Symposium on Spatial User Interaction (SUI) doi:10.1145/3267782.3267797
- Dongyun Han, Donghoon Kim, Garrett Woodhouse, Isaac Cho (2026). Beyond Arm's Reach: Revisiting 3D Interaction Techniques for Virtual Display Management in Immersive Workspaces. IEEE Transactions on Visualization and Computer Graphics (early access) doi:10.1109/TVCG.2026.3734382