Comparison of XR Game Controller Trigger Input Versus Isometric Thumb and Index Finger Pressure Input on a Stylus

Pressure sensitive inputs are an important feature for many XR design and creativity applications. This is typically accomplished using the trigger input on the default platform 6DoF controller. This paper reports the findings of a pilot user study that compares the performance of the default platform 6DoF controller trigger with an isometric force sensor integrated into the barrel of a prototype stylus device. The force sensor on the prototype stylus is activated with either the thumb or the index finger. The result of the 12-person pilot study shows that mean throughput of stylus index finger interactions is higher than the stylus thumb usage and default controller trigger usage; however throughout differences were not statistically significant. Subjectively, stylus index finger pressure control was the preferred interaction technique for most participants.