Top panel: UD angular diameters of S Ori for each line of a mask versus their corresponding reference optical depths (Fig. 3). The color coding is the same as in Figs. 3 and 4. Bottom panel: UD angular diameters of S Ori (black), best-fit 1D CODEX snapshot (red), and best-fit snapshot from the 3D RHD simulation (green) from Table 4 for the different tomographic masks versus their corresponding reference optical depths (Table 2). The errorbars are shown as shaded areas.