Optical depth τ_V as a functionof the inclination angle of the gas disk. The colors correspond to different bolometric luminosities. Left panel: wind with 1∕z density profile. Middle panel: wind with 1∕z² density profile. Right panel: no wind component. The numbers indicate the logarithm of the bolometric luminosities of the models in erg s⁻¹. The horizontal dotted lines correspond to τ_V = 1 and 3, i.e., the transition from type 1 to type 2 objects. The vertical dotted lines correspond to the range of inclination angles where the degree of polarized optical emission changes from type 1 to type 2 objects (Marin 2014).