Investigating A Geometrical Solution to the Vergence-Accommodation Conflict for Targeted Movements in Virtual Reality

Fuente: arXiv
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Bibliographic Details
Main Authors: Wang, Xiaoye Michael, Prenevost, Matthew, Tarun, Aneesh, Robinson, Ian, Nitsche, Michael, Resch, Gabby, Mazalek, Ali, Welsh, Timothy N.
Format: Preprint
Published: 2025
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_version_ 1866910017120108544
author Wang, Xiaoye Michael
Prenevost, Matthew
Tarun, Aneesh
Robinson, Ian
Nitsche, Michael
Resch, Gabby
Mazalek, Ali
Welsh, Timothy N.
author_facet Wang, Xiaoye Michael
Prenevost, Matthew
Tarun, Aneesh
Robinson, Ian
Nitsche, Michael
Resch, Gabby
Mazalek, Ali
Welsh, Timothy N.
contents While virtual reality (VR) holds significant potential to revolutionize digital user interaction, how visual information is presented through VR head-mounted displays (HMDs) differs from naturalistic viewing and interactions in physical environments, leading to performance decrements. One critical challenge in VR development is the vergence-accommodation conflict (VAC), which arises due to the intrinsic constraints of approximating the natural viewing geometry through digital displays. Although various hardware and software solutions have been proposed to address VAC, no commercially viable option has been universally adopted by manufacturers. This paper presents and evaluates a software solution grounded in a vision-based geometrical model of VAC that mediates VAC's impact on movement in VR. This model predicts the impact of VAC as a constant offset to the vergence angle, distorting the binocular viewing geometry that results in movement undershooting. In Experiment 1, a 3D pointing task validated the model's predictions and demonstrated that VAC primarily affects online movements involving real-time visual feedback. Experiment 2 implemented a shader program to rectify the effect of VAC, improving movement accuracy by approximately 30%. Overall, this work presented a practical approach to reducing the impact of VAC on HMD-based manual interactions, enhancing the user experience in virtual environments.
format Preprint
id arxiv_https___arxiv_org_abs_2505_23310
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Investigating A Geometrical Solution to the Vergence-Accommodation Conflict for Targeted Movements in Virtual Reality
Wang, Xiaoye Michael
Prenevost, Matthew
Tarun, Aneesh
Robinson, Ian
Nitsche, Michael
Resch, Gabby
Mazalek, Ali
Welsh, Timothy N.
Human-Computer Interaction
While virtual reality (VR) holds significant potential to revolutionize digital user interaction, how visual information is presented through VR head-mounted displays (HMDs) differs from naturalistic viewing and interactions in physical environments, leading to performance decrements. One critical challenge in VR development is the vergence-accommodation conflict (VAC), which arises due to the intrinsic constraints of approximating the natural viewing geometry through digital displays. Although various hardware and software solutions have been proposed to address VAC, no commercially viable option has been universally adopted by manufacturers. This paper presents and evaluates a software solution grounded in a vision-based geometrical model of VAC that mediates VAC's impact on movement in VR. This model predicts the impact of VAC as a constant offset to the vergence angle, distorting the binocular viewing geometry that results in movement undershooting. In Experiment 1, a 3D pointing task validated the model's predictions and demonstrated that VAC primarily affects online movements involving real-time visual feedback. Experiment 2 implemented a shader program to rectify the effect of VAC, improving movement accuracy by approximately 30%. Overall, this work presented a practical approach to reducing the impact of VAC on HMD-based manual interactions, enhancing the user experience in virtual environments.
title Investigating A Geometrical Solution to the Vergence-Accommodation Conflict for Targeted Movements in Virtual Reality
topic Human-Computer Interaction
url https://arxiv.org/abs/2505.23310