# A Scoping Review on Virtual Reality-Based Industrial Training
## 3 Results
### Literature Review
#### Industrial Training Based on Virtual Reality
This proposal has several advantages, such as the fact that it focuses students' attention on navigation tasks, commits them to actively fulfill their objective, and also provides feedback on their achievements. Indy was developed with Unity 3D, works as a network application, and provides three participation roles, (i) trainer, shows the map of the industrial facilities and offers broader views and controls on the environments, (ii) apprentice 1, displays the 3D model of the facilities through the HTC Vive head-mounted display; and, (iii) apprentice 2, who does not have immersive characteristics, however, shows the maps using 360\({}^{\circ}\) photos. The displacement is done with the keyboard and mouse. As a result of this work, it can be mentioned that, by offering a variety of environments and scenarios, users can correctly adapt to a specific work profile. Additionally, by converting the learning experience into a collaborative and entertaining process, the attention of the operators is improved, which leads to better-founded knowledge and experiences. The virtualization of an industrial tanning process, in order to train new operators to acquire the necessary skills in this process was developed by [PERSON] et al. [PERSON] et al. (2018). The focus of this work concentrated on training operators to avoid their exposure to chemical, biological, ergonomic, and psychological risks that are very common in this industry. The steps that have been followed in this investigation include the collection of information, identification of the production system, plant distribution, and verification of the supply chain. On the other hand, SolidWorks software has been used for the 3D design of the work floor and machinery. After this, Blender was the appropriate system for texturing 3D elements, in addition to serving as a means for exporting these designs to Unity 3D. [PERSON] et al. [PERSON] et al. (2018) detail the use of an immersive VR system aimed at learning electric welding in the context of the vehicle assembly industry. A teaching-learning process has been applied in order to obtain trained operators in the welding area, reduce workplace accidents, and reduce the greatest amount of waste. The presented case study details the use of the HTC Vive HMD and haptic controls in combination with Unity 3D, whose functionality allows the transformation processes of a chassis to a functional bus to be correctly carried out through its assembly, welding, and painting. The obtained results show an efficient system oriented to human-machine interaction, which, through the development of psychosomatic skills, allows for improving the skills of operators in the auto body industry. The planning and design of a voltaic power plant through a virtual world is described by [PERSON] et al. [PERSON] et al. (2018). Learners can interact with the designed immersive system by learning its technical characteristics and installation details while learning with visual, auditory, and kinesthetic teaching activities. In order to compare this teaching methodology with a traditional one, an evaluation was carried out in the fifth week of the use of the training tool. The results showed significant differences, (i) the conventional training time was three times higher than the first one and (ii) the evaluation results showed an average performance of 8.7/10 with the VR tool, while the traditional training group obtained a rating of 7.35/10. [PERSON] et al. [PERSON] et al. (2018) describe the application of virtual environments for the training of professionals in hybrid energy systems. A Unity 3D-based system has been developed divided into three training modes, (i) immersion, (ii) interaction and failure, and (iii) operation of electrical processes. To complement this proposal, the mathematical models of a wind turbine and photovoltaic panel have been determined, so that the training is a reflection of everyday industrial situations. As an evaluation of the experiment, the efficiency of the application has been determined through a survey.