“…However, there is almost nothing comparable at hand in the scientific literature, not even at a classificatory or descriptive level. Science has extensively developed analysis of the objective, radiometric aspects of light such as radiance, luminance, and luminous environment, describing the objective illumination of the light field from the physical ( natural ) viewpoint and its properties (Fleming, Dror, & Adelson, 2003; Morgenstern, Geisler, & Murray, 2014; Morgenstern, Murray, & Geisler, 2010, 2011; Mury, Pont, & Koenderink, 2007, 2009; Olkkonen & Brainard, 2010; Pont & Koenderink, 2007; Xia, Pont, & Heynderinckx, 2014b); and its perception from a psychophysical viewpoint (Adelson & Bergen, 1991; Kartashova, Sekulovski, de Ridder, te Pas, & Pont, 2016; Koenderink, Pont, van Doorn, Kappers, & Todd, 2007; Maloney, 2002; Maloney, Gerhard, Boyaci, & Doerschner, 2010; Toscani, Gegenfurtner, & Doerschner, 2017; for a systematic review, from the inferential viewpoint, see Schirillo, 2013). Unfortunately, however, there has been no similar development in the analysis of perceived illumination in phenomenological terms, probably because the phenomenon as such is difficult to address and to identify using current approaches and methodologies, because it is characterized by a set of dimensions that apparently evade a quantitative explanation.…”