Projected density (left) and physical resolution (right) in EH (top) and SH (bottom) zoomed on a massive halo at z = 3. The depth of the projections are 200 kpc h⁻¹ and the boxes extend to 1 Mpc h⁻¹ on each side. The gas density is computed as the mass-weighted average of local densities along the line of sight corresponding to each pixel. The resolution shown is the resolution of the cell in which the gas density is the highest along each line of sight.