HandBrush for Efficient Object Grouping in Virtual Environment with Bare-Hand

Object grouping task is an important research direction for fast manipulation of a large number of objects. It can help users to improve the efficiency of multi-object manipulation. However, the current research on this aspect is still immature. For this task, in this paper, based on the brush metaphor, we propose a method for grouping objects based on bare hands in virtual reality scenes. We design a number of interactions to facilitate the user's grouping of objects in the three-dimensional virtual space. Object grouping in virtual reality could encompass two subtasks: group generation and group modification. The emphasis of these tasks varies, with the former focusing on creating groups from ungrouped objects and the latter focusing on modifying group members once they are generated. The results of the empirical study show that our method has better performance in accomplishing both sub-tasks compared to the Ray method, Screen method and Cone method.