Cylindrically averaged radial-vertical map of κ_R computed only for ice and olivine components, centred on the planet for sim 1. This highlights the approximate 3D structure of ice and olivine sublimation ellipsoids in the envelope, as is seen via the corresponding opacity drops. Overlying black contours denote the gas density in g cm⁻³ to highlight the disc-structure of the hydrodynamic solutions. The Hill sphere is marked with a red circle. The actual τ = 1 surfaces at λ = (5, 30 , 300) µm computed with the full solution for sim 1 and viewing from z = +∞ are overlaid in dark blue, light blue, and cyan. Dashed colours denote the mirrored continuation of the surfaces below the disc midplane. The τ = 1 surfaces help to interpret spectral information.