Two-In-One: A Design Space for Mapping Unimanual Input into Bimanual Interactions in VR for Users with Limited Movement

Virtual Reality (VR) applications often require users to perform actions with two hands when performing tasks and interacting objects in virtual environments. Although bimanual interactions VR can resemble real-world -- thus increasing realism improving immersion they also pose significant accessibility challenges people limited mobility, such as for who have full use of only one hand. An opportunity exists create accessible techniques that take advantage users' abilities, but designers currently lack structured tools consider alternative approaches. To begin filling this gap, we propose Two-in-One, a design space facilitates the creation methods from unimanual input. Our comprises dimensions, computer assistance, provide detailed examination issues creating new input map VR. We used our three interaction subsequently implemented subset received user feedback through video elicitation study 17 mobility. findings explore complex tradeoffs associated autonomy agency highlight need additional settings make