Optokinetic Cloud is a VR three-dimensional field of dots moving in one particular trajectory (optokinetic stimuli). The optokinetic stimulus is a display of 1000 spheres of 10 cm radius, randomly distributed in 3D around a head – centered globe and programmed to appear to lie in depth between 10 and 50 m from the view point. The screen background is blue, and the spheres were white. Every 200 ms a random sphere is deleted and a new one is created in a random location so that the pattern was always changing and so is unrecognizable. The entire three-dimensional field (globe with all spheres) is rotated at a velocity of 20°/s around two diagonal axes. The subjective experience was like being inside a 3D planetarium.
Mixte Reality video of the Optokinetic Cloud:
Publications related to the Optokinetic Cloud App:
1. Chiarovano E, de Waele C, MacDougall HG, Rogers SJ, Burgess AM, Curthoys IS. Maintaining Balance when Looking at a Virtual Reality Three-Dimensional Display of a Field of Moving Dots or at a Virtual Reality Scene. Frontiers in Neurology [Internet]. 2015 Jul 27 ;6. Available from: http://journal.frontiersin.org/Article/10.3389/fneur.2015.00164/abstract
2. Menzies RJ, Rogers SJ, Phillips AM, Chiarovano E, Waele C de, Verstraten F a. J, et al. An objective measure for the visual fidelity of virtual reality and the risks of falls in a virtual environment. Virtual Reality. 2016 Jun 6;1–9.