Methods and Technologies of Cosmonaut Rescue Simulation in Virtual Environment Systems

Maltsev, A.V.; Strashnov, Evgeny; Mikhaylyuk, Mikhail

doi:10.26583/sv.13.4.05

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…Depending on the field of application and solved tasks, virtual model prototypes may have the different nature of the origin. For example, when developing training complexes and other tools to teach qualified specialists [1][2][3][4][5][6], such prototypes are existing and future objects of physical reality. The gaming and film industries may also use fictional elements.…”

Section: Introductionmentioning

confidence: 99%

Integration of Physical Reality Objects with Their 3D Models Visualized in Virtual Environment Systems

Maltsev

2024

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The paper describes methods and approaches for integrating, from the user's point of view, three-dimensional virtual models visible to them in a virtual reality headset, and their physical prototypes. This allows for the addition of some important elements of physical reality to the virtual environment, such as tactile and muscle-motor sensations. Developed solutions are based on the use of wireless HTC Vive trackers, which determine their position and orientation in space and have the ability to be attached to various objects in the real world. An original approach to building a tracking system from several controllers of such type with one anchor element selection is proposed, as well as new methods for real-time integration of physical reality objects with their virtual models by means of functional control schemes with blocks for the Vive trackers. Software modules were created based on developed methods and approaches. Approbation of them was carried out in virtual environment system VirSim and showed adequacy and effectiveness of proposed solutions when using in virtual environment systems and training complexes.

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Section: Introductionmentioning

confidence: 99%

Integration of Physical Reality Objects with Their 3D Models Visualized in Virtual Environment Systems

Maltsev

2024

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“…At present, virtual environment synthesized by a computer is used in many areas of human activity, from developments in the gaming industry to creation of tools to teach qualified specialists [1][2][3][4][5][6]. Usually it is a three-dimensional scene where known or promising objects of the world around us are modeled, as well as their behavior and interaction.…”

Section: Introductionmentioning

confidence: 99%

Computer Simulation and Visualization of Wheel Tracks on Solid Surfaces in Virtual Environment

Maltsev

2023

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The paper describes methods and approaches for implementation of traces from virtual prototypes of wheeled technical vehicles on solid objects in three-dimensional virtual scenes. Use of particle systems hierarchically linked to wheel models is the basis of solutions developed. Original type of particle system is proposed, in which generation of elements is regulated by special control signal. Creation, processing, storage and destruction of particles is performed by means of the CUDA architecture with use of computing cores of modern graphics processor and video memory resources. Creating geometric model of each particle and its rendering is carried out on programmable graphics pipeline with own vertex, geometry and fragment shaders. Visualization of virtual environment with simulation of wheel tracks is performed in real time. Software modules were created based on developed methods and approaches. Approbation of them was carried out in virtual environment system VirSim and showed adequacy and effectiveness of proposed solutions for simulation of wheel tracks in virtual environment systems and training complexes.

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Adaptation to Simulated Hypergravity in a Virtual Reality Throwing Task

Pouke,

Uotila,

Center

et al. 2024

ACM Trans. Appl. Percept.

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According to previous research, humans are generally poor at adapting to earth-discrepant gravity, especially in Virtual Reality (VR), which cannot simulate the effects of gravity on the physical body. Most of the previous VR research on gravity adaptation has used perceptual or interception tasks, although adaptation to these tasks seems to be especially challenging compared to tasks with a more pronounced motor component. This paper describes the results of two between-subjects studies ( n = 60 and n = 42) that investigated adaptation to increased gravity simulated by an interactive VR experience. The experimental procedure was identical in both studies: In the adaptation phase, one group was trained to throw a ball at a target using Valve Index motion controllers in gravity that was simulated at five times of earth’s gravity (hypergravity group), whereas another group threw at a longer-distance target under normal gravity (normal gravity group) so that both groups had to exert the same amount of force when throwing (approximated manually in Study 1 and mathematically in Study 2). Then, in the measurement phase, both groups repeatedly threw a virtual ball at targets in normal gravity. In this phase, the trajectory of the ball was hidden at the moment of release so that the participants had to rely on their internal model of gravity to hit the targets rather than on visual feedback. Target distances were placed within the same range for both groups in the measurement phase. According to our preregistered hypotheses, we predicted that the hypergravity group would display worse overall throwing accuracy, and would specifically overshoot the target more often than the normal gravity group. Our experimental data supported both hypotheses in both studies. The findings indicate that training an interactive task in higher simulated gravity led participants in both studies to update their internal gravity models, and therefore, some adaptation to higher gravity did indeed occur. However, our exploratory analysis also indicates that the participants in the hypergravity group began to gradually regain their throwing accuracy throughout the course of the measurement phase.

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Methods and Technologies of Cosmonaut Rescue Simulation in Virtual Environment Systems

Cited by 3 publications

References 6 publications

Integration of Physical Reality Objects with Their 3D Models Visualized in Virtual Environment Systems

Integration of Physical Reality Objects with Their 3D Models Visualized in Virtual Environment Systems

Computer Simulation and Visualization of Wheel Tracks on Solid Surfaces in Virtual Environment

Adaptation to Simulated Hypergravity in a Virtual Reality Throwing Task

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