Abstract
This manuscript analyzes the influence of display parameters and display devices over the spatial skills of the users in virtual reality environments. For this, the authors of this manuscript developed a virtual reality application which tests the spatial skills of the users. 240 students used an LG desktop display and 61 students used the Gear VR for the tests. Statistical data are generated when the users do the tests and the following factors are logged by the application and evaluated in this manuscript: virtual camera type, virtual camera field of view, virtual camera rotation, contrast ratio parameters, the existence of shadows and the device used. The probabilities of correct answers were analyzed based on these factors by logistic regression (logit) analysis method. The influences and interactions of all factors were analyzed. The perspective camera, lighter contrast ratio, no or large camera rotations and the use of the Gear VR greatly and positively influenced the probability of correct answers on the tests. Therefore, for the assessment of spatial ability in virtual reality, the use of these parameters and device present the optimal user-centric human–computer interaction practice.
Highlights
Spatial ability is an important skill to have in the modern day and age, as multiple jobs require a well-developed spatial ability [1]
In this subsection the authors considered the effects of the display parameters and devices separately
Due to the random choice of camera type, 1418 tests were done with perspective camera and 1291 tests were done with orthographic camera
Summary
Spatial ability is an important skill to have in the modern day and age, as multiple jobs require a well-developed spatial ability [1]. Tests were created with this goal in mind in the last century in paper-based formats Multiple types of these tests exist, but the authors chose three of them for this research: The Mental Rotation Test (MRT) [2], where the user has to rotate objects in their mind; the Purdue. Spatial Visualization Test (PSVT) [2,3], where the user has to rotate objects in their mind; and the Mental Cutting Test (MCT) [2,4], where the user has to cut and rotate objects in their mind Since these tests mostly exist on paper, and virtual reality can improve the learning skills [5]
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