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Continuous VR Weight Illusion by Combining Adaptive Trigger Resistance and Control-Display Ratio Manipulation

Carolin Stellmacher; André Zenner; Oscar Javier Ariza Nunez; Ernst Kruijff; Johannes Schöning
In: Proceedings of the 2023 IEEE Virtual Reality and 3D User Interfaces (VR'23). IEEE Conference on Virtual Reality and 3D User Interfaces (VR-2023), March 25-29, Shanghai, China, IEEE, 2023.


We studied a novel combination of a hardware-based technique and a software-based pseudo-haptic approach to achieve a continuous VR weight illusion. While a modified VR controller renders adaptive trigger resistance during grasping, a manipulation of the control-display ratio (C/D ratio) induces a sense of weight during lifting. In a psychophysical study, we tested our combined approach against the individual rendering techniques. Our findings show that participants were significantly more sensitive towards smaller weight differences in the combined weight simulations and determined weight differences faster. Our work demonstrates the meaningful benefit of combining physical and virtual methods for virtual weight perception.

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