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Towards dynamic real-time daylight simulation

Towards dynamic real-time daylight simulation

Marsh, Andrew and Stravoravdis, Spyros (2017) Towards dynamic real-time daylight simulation. In: Proceedings of the Passive and Low Energy Architecture Conference (PLEA2017) - Design to Thrive: Volume II. NCEUB NEtwork for Comfort and Energy Use in Buildings, Edinburgh, pp. 3293-3300. ISBN 978-0992895754

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Real-time visual feedback can greatly assist the process of identifying and understanding complex cause and effect relationships. Whilst not all physical processes in the performance analysis of buildings can be simulated in real-time, some can. This paper introduces a web-based daylight simulation tool that uses variants of the daylight coefficients and split-flux methods implemented on the GPU to calculate the spatial distribution of daylight factors across a simple rectangular room. By combining real-time simulation with modern games technology, it is possible to create a highly visual and interactive design environment that allows all the governing parameters of internal daylighting - including room geometry - to be manipulated by the user in realtime, with detailed contextual results updating dynamically with each interactive change. The purpose of this tool is primarily educational, allowing users to gain a comprehensive understanding of the relationships between room dimensions, window placement and daylight distribution through a process of deliberate investigative play. A detailed parametric comparison with Radiance simulations resulted in a small modifier to the implemented method that produces a robust correlation which the authors argue makes this tool a valuable educational resource with potential applications in early design decision-making.

Item Type: Conference Proceedings
Title of Proceedings: Proceedings of the Passive and Low Energy Architecture Conference (PLEA2017) - Design to Thrive: Volume II
Uncontrolled Keywords: Daylight, Simulation, GPU, Education
Subjects: T Technology > TH Building construction
Faculty / School / Research Centre / Research Group: Faculty of Liberal Arts & Sciences
Faculty of Liberal Arts & Sciences > School of Design (DES)
Faculty of Liberal Arts & Sciences > Integrated Nature & Technology Research Group (INTENT)
Last Modified: 04 Nov 2021 00:40

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