Abstract
Technology has always been creating effective ways to support human decisions. Immersive virtual reality (IVR) has emerged to engage users in a simulated world, and this has gained the interest of a wide variety of users in the heritage industry. A historical case study built in the early 19th century is considered for an adaptive reuse exhibition. The palace is located in Cairo, Egypt, and named after Prince Omar Tosson. The current palace state incorporates a smashed top-lit zone, which is being studied and analyzed for daylighting adequacy. Three simulated distinct optimum skylight configurations are suggested for the redesign where the selection should not be based solely on simulation data, but should consider real-user preferences. Most daylight design criteria are previously based on simulation data that do not necessarily indicate the users’ preferences. But utilizing user interactive tools such as IVR to test daylight redesign options, a whole new dimension is provided. In this study, the VR users’ survey data is statistically analyzed using Statistical Package for Social Sciences (SPSS), where results revealed that the assessment attributes succeeded in reflecting the users’ preferences; which, motivated designers to consider potential users’ daylight preferences in reused spaces. The paper highlights the most significant emotional attributes that provide cost-effective and reliable information concerned with the performance of daylight in IVR before design implementation. This study compares and analyzes the effect of three skylight designs (Cases A, B & C) on the users’ perception before design implementation using (IVR) post-survey. Forty-eight participants have contributed to the study, providing their feedback on six attributes namely: Pleasant, Contrasting, Brightness, Uniform Distribution, Visual Comfort, and Satisfaction. Those attributes are evaluated for the three cases in space using five scale rating values to reveal that the “Pleasant” attribute is most reliable in the study to reflect the users’ preferences for design Case B.
Highlights
The significance of daylight adequacy in spaces has been highlighted for multiple reasons
This research considered the study of three distinct skylight design alternatives which were developed for the main space hall of the heritage case in order to evaluate potential space users’ opinions in immersive vertical reality (IVR)
The reliability of the daylight simulation results is coupled with potential user-oriented experience in IVR which can verify simulation results and further simulate potential experience before construction
Summary
The significance of daylight adequacy in spaces has been highlighted for multiple reasons. Daylight gives another dimension of beauty to the interior and those spaces that lack daylight are usually considered dull. Daylight should be enhanced to reflect the interior beauty of spaces and satisfy the user’s visual perspective in improving the museums space experience (Kaya and Afacan 2018). Arising technology provides new ways to assist designers in satisfying potential users’ preferences through an immersive vertical reality (IVR) perspective that can identify participants’ opinions based on reliable information. Virtual reality (VR) has been adopted recently in many studies since it has been proven by researchers its accuracy in simulating physical environment and capability in providing a reliable method for presenting the physical space to users (Marín-Morales et al 2019)
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