3D Selection Vault

3D Spherical Brush

Also known as Spherical brush

A semi-transparent sphere attached to each tracked hand selects every object inside it while a button is held, so the user paints over a cloud of objects; the scroll wheel sets its size.

How it works

Two tracked presenter mice control one sphere each. Clicking selects what is inside; holding the button while sweeping keeps adding objects; the right button toggles a deselect mode. With 18 participants in an nVisor HMD selecting about 1,700 targets among 3,300 distractors in five cloud layouts, the magic wand was fastest but failed when clouds touched, the brush was rated easiest, and the box lasso needed the fewest operations; no tool suited every layout.

Papers

• Rasmus Stenholt (2012). Efficient Selection of Multiple Objects on a Large Scale. Proceedings of the 18th ACM Symposium on Virtual Reality Software and Technology (VRST '12), 105-112 doi:10.1145/2407336.2407357