Attenuation laws from our model, normalised to the V-band attenuation. The black solid line is the global law. The dashed line reflects the attenuation law for the diffuse dust and the dotted black line for the dust in star-forming regions. Several literature measurements are shown; red curve: MW curve for R(V) = 3 from Fitzpatrick & Massa (2007), blue dashed line: SMC bar region (Gordon et al. 2003), and green dash-dotted line: attenuation curve from Battisti et al. (2016).