Probability distribution functions (PDFs) for the reference snapshot of the MC simulation. The PDFs are weighted by mass (light blue) and luminosity (blue). Each panel refers to the same snapshot at t ~ 1.1 Myr (the reference snapshot), simulated with 5 × 10⁵ (left panel), 5 × 10⁶ (middle panel), 5 × 10⁷ (right panel) photon packets. Circles indicate the median of each distribution, whereas the dotted lines bracket the 16th and 84th percentiles.