Dynamic Cubic Illuminance: an Example of Application of a New Paradigm for Daylight Analysis in an Ancient Pompeian Domus

Abstract

The paper presents an analysis methodology to dynamically assess daylight characteristics in indoor environments, based on the combination of bidimensional indicators (i.e. indicators based on the traditional illuminance calculation) with threedimensional ones (based on the concept of the Cubicn Illumination). For this purpose, the Useful Modeling Indices (UMIs) are introduced. The method is applied to two particular case-studies: the atrium and the peristyle in the Villa of the Mysteries in Pompeii. These architectural structures, being conceived as filtering spaces to attenuate entering daylight, represent a particularly interesting field of research.