01374nas a2200229   4500000000100000000000100001008004100002653001300043653002400056653002100080653002300101653002300124100001500147700001900162700001900181245007100200856003600271300000700307490000700314520080900321022001401130       2020                            d10adaylight10adaylight simulation10alight scattering10aRoman architecture10aRoman window glass1 aLars Grobe1 aAndreas Noback1 aFranziska Lang00aData-driven modelling of daylight scattering by Roman window glass  uhttps://doi.org/10.1145/3350428  a200 v133 aWith the advent of window glass, its optical properties arise as one important factor in the illumination, and thereby the visual perception, of Roman architecture. Computational simulation allows to reconstruct the daylight illumination of buildings with known geometrical configuration, if the scattering properties of window glass can be replicated. We describe a method to generate data-driven models of Roman window glass based on precise gonio-photometric measurements of archaeological finds. The method is employed to model four exemplary glass finds in the context of a simplified architectural scene, demonstrating the potential to support research in building history and archaeology focused on building techniques, lighting concepts and perception with accurate and reliable photometric data.  a1556-4673