Two examples of disc galaxies from our simulations at z = 0. The four rows depict the mass surface densities of stars, gas, dust, and H₂ on pixels of ∼0.5 kpc per side. Columns 1 and 2 illustrate face-on and edge-on views of a galaxy with M₂₀₀ = 1.5 × 10¹² M_⊙, M_star = 5.3 × 10¹⁰ M_⊙, M_gas = 5.0 × 10⁹ M_⊙, M_dust = 7.0 × 10⁷ M_⊙, and M_H2 = 2.2 × 10⁹ M_⊙. Columns 3 and 4 show the corresponding maps for a galaxy with M₂₀₀ = 3.6 × 10¹² M_⊙, M_star = 1.2 × 10¹¹ M_⊙, M_gas = 4.6 × 10⁹ M_⊙, M_dust = 6.3 × 10⁷ M_⊙, and M_H2 = 2.0 × 10⁹ M_⊙.