Visualisation of a ∼40 h⁻¹ Mpc thick slice of the galaxy distribution from the Flagship m3 mock and the corresponding cosmic web skeleton reconstructed without weighting Delaunay tessellation for the reference catalogue without the FoG effect, without added noise and with 100% completeness (𝒟; top), with the FoG, added redshift error and 60% sampling (${\mathcal{D}}_{\mathrm{noise},60\%}^{\mathrm{w}\mathrm{FoG}}$; middle), and after correcting for the FoG effect (${\mathcal{D}}_{\mathrm{noise},60\%}^{\mathrm{FoG},\mathrm{corr}}$; bottom). For the sake of clarity, only 0.4 < z < 0.85 range of the lightcone is shown.