Camera Modes in Multi-user Virtual Reality Applications in Industry 4.0

This paper describes four scenarios of cooperation between a user in virtual reality and a user using interaction through computer peripherals. User cooperation is used in applications for Industry 4.0 in the field of employee training or in the deployment of digital twin companies. Four scenarios are devoted to the possibility of displaying scenes and the use of avatars in virtual reality using outside in tracked headsets and a user using a monitor display with control via a keyboard and computer mouse. Within the scenarios, we define the VR view, the use of a free camera, the character mode, and the automatic orbit camera, the movement of which depends on the position and orientation of the user in space in virtual reality. We show the applications of individual scenarios in a case study of user training in the field of mining and production in industrial enterprises. In the tests, we compared the increase in productivity of employees after training with the use of assisted VR in a multiuser environment.