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Up- and downwards motions in 3D pointing

We present an experiment that examines 3D pointing in fish tank VR using the ISO 9241-9 standard. The experiment used three pointing techniques: mouse, ray, and touch using a stylus. It evaluated user pointing performance with stereoscopically displayed varying height targets above an upward-facing display. Results show differences in upwards and downwards motions for the 3D touch technique.