Differences in volume fractions at different redshifts (shown in the first three panels) calculated for an off-set Gadget simulation. The constant volume threshold phenomenon appears for all classified elements despite the fact that the cosmology, box size, initial conditions, and code are different from those of the MG-COLA set used in the rest of the work. The black vertical area shows the calculated range for ${\lambda }_{\mathrm{CV}}^{\mathrm{fit}}\pm 3{\sigma }_{\mathrm{fit}}$ with smoothing length R_s = 2.5 Mpc/h used in this example. The last panel explicitly shows the measurement λ_CV and fit ${\lambda }_{\mathrm{CV}}^{\mathrm{fit}}$ values.