3D Selection Vault

Indirect Stretching

Also known as Indirect Go-Go

Arm extension by buttons: two buttons grow or shrink the virtual arm at a constant rate, giving unlimited reach.

How it works

The virtual hand stays on the line from the user's torso through the physical hand; pressing one button lengthens the virtual arm and another shortens it, at a constant rate, until the hand reaches the object to grab.

Papers

• Doug A. Bowman, Larry F. Hodges (1997). An evaluation of techniques for grabbing and manipulating remote objects in immersive virtual environments. Proceedings of the 1997 symposium on Interactive 3D graphics - SI3D '97 doi:10.1145/253284.253301
• Douglas A. Bowman (1999). Interaction Techniques for Common Tasks in Immersive Virtual Environments: Design, Evaluation, and Application. PhD thesis, Georgia Institute of Technology link