Abstract The article presents a brief history of the development of virtual reality (VR), followed by a comprehensive literature overview on the matter as well as an example of the application of VR in the training of professionals on the example of firefighters. The history, starting in 1965 with the ideas, concepts, and solutions presented by the VR's “forefather”—Ivan Sutherland, delves into multiple projects. The literature review presents various examples of the use of VR in the training of professionals coming from multiple fields, such as medicine, psychology, forestry, iron casting, or construction. The case study shows it can be used to recreate even the most complex scenarios and surroundings, even those of the firefight in confined spaces where enclosed fires tend to appear and have been considered vastly hazardous for not only civilians or equipment but also to firefighters dispatched to contain them.

Engaging the sense of touch in virtual environments is a challenging and important issue. Currently, the most common way to address this issue is the use of a set of actuators that restrict hand movement. This article presents an alternative method to track physical surrogate representations of virtual objects using a vision-based system. Using real objects that can be manipulated by a person immersed in a virtual environment is an alternative to expensive robotized haptic systems. Moreover, this technique allows the user to move objects over long distances. Research conducted with 30 volunteers shows that the sense of touch can significantly reduce the execution time of tasks demanding high precision. Despite this decrease in execution time, an increase in precision has been observed. The conclusion of this article looks at the pros and cons of the use of physical surrogates for virtual objects, for example, less time needed for virtual reality-based training with the use of physical surrogates.

This article presents the results from research in which 3 different remote control interfaces were compared to assess the impact of interface structure on the performance of the operator for remotely controlled mobile inspection robots. The primary control interface of a mobile robot consists of a head-mounted display, data gloves for gripper control, joystick for movement control of the robot platform, and a motion tracking system for measuring head orientation and hand position. In order to compare different control interfaces, an additional system, based on a Liquid Crystal Display monitor and joystick, was prepared. Results of this study show that the use of virtual reality techniques in the interfaces of mobile inspection robots increases operator productivity, the level of spatial presence, and distance evaluation while facilitating the execution of tasks, as well as improving and speeding up their execution and reducing the operator’s time needed to adapt to the control interface. The latter is achieved with the increased level of intuitive control while ensuring comfort.

In the paper an intelligent agents system is used for modeling evacuating processes of rooms and buildings. The motion of each agent is described using Langevin equation with the social force term, which make possible to take into account mental component in agents motion - connected with the level of hazard. In numerical simulations it is possible to observe the trajectories of agents and emergent phenomena accompanying evacuation. Calculation of times of evacuation for different rooms and buildings enable to discuss factors influencing the effectiveness of evacuation.