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A platform for research: civil engineering, architecture and urbanism
Comparing daylight brightness perception in real and immersive virtual environments using perceptual light maps
Abstract While Immersive Virtual Environments (IVEs) are essential for pre-construction investigation of daylight perception in buildings, current daylight studies show limitations in achieving adequate immersion and interaction levels in IVEs, driven by the speed constraints of traditional light simulation tools. Therefore, it is necessary to examine whether using new real-time simulation tools can offer better interaction while maintaining accurate daylight perception. This study validates the accuracy of an interactive method to investigate daylight brightness perception in IVEs, through comparing collective perception visualizations (introduced as Perceptual Light Maps) across reality and an identical IVE based on real-time rendering in a game engine software. The results show strong consistency between perceptions in reality and IVE. The findings accentuate the adequacy of the proposed method as a surrogate to real environments in investigating brightness perception in daylit spaces. Furthermore, they encourage further investigation towards adopting game engines as a validated daylight simulation tool.
Highlights Daylit environment is simulated in real-time in virtual reality using game engine. Subjects reported brightness perceptions in a physical environment and its virtual replica. A high sense of presence and realism were reported in the virtual environment. Collective perceptions of daylight brightness were visualized as heat maps. Strong consistency was found between perceptions in virtual and real environments.
Comparing daylight brightness perception in real and immersive virtual environments using perceptual light maps
Abstract While Immersive Virtual Environments (IVEs) are essential for pre-construction investigation of daylight perception in buildings, current daylight studies show limitations in achieving adequate immersion and interaction levels in IVEs, driven by the speed constraints of traditional light simulation tools. Therefore, it is necessary to examine whether using new real-time simulation tools can offer better interaction while maintaining accurate daylight perception. This study validates the accuracy of an interactive method to investigate daylight brightness perception in IVEs, through comparing collective perception visualizations (introduced as Perceptual Light Maps) across reality and an identical IVE based on real-time rendering in a game engine software. The results show strong consistency between perceptions in reality and IVE. The findings accentuate the adequacy of the proposed method as a surrogate to real environments in investigating brightness perception in daylit spaces. Furthermore, they encourage further investigation towards adopting game engines as a validated daylight simulation tool.
Highlights Daylit environment is simulated in real-time in virtual reality using game engine. Subjects reported brightness perceptions in a physical environment and its virtual replica. A high sense of presence and realism were reported in the virtual environment. Collective perceptions of daylight brightness were visualized as heat maps. Strong consistency was found between perceptions in virtual and real environments.
Comparing daylight brightness perception in real and immersive virtual environments using perceptual light maps
Hegazy, Muhammad (author) / Ichiriyama, Ken (author) / Yasufuku, Kensuke (author) / Abe, Hirokazu (author)
2021-08-14
Article (Journal)
Electronic Resource
English
Evaluating and visualizing perceptual impressions of daylighting in immersive virtual environments
| Taylor & Francis Verlag | 2021
Evaluating and visualizing perceptual impressions of daylighting in immersive virtual environments
| DOAJ | 2021