The ratio of the radiation fluxes and the line-force multiplier. Panel (A) shows the ratio of the radial radiation fluxes at the outer boundary. Panel (B) shows the ratio of the angular radiation fluxes at r = 80r_s. Panel (C) shows the angular distribution of the line-force multiplier of runs A6, B6, and C6 at r = 80r_s. The ratio in panels (A) and (B) is calculated by dividing the radiation flux that incorporates the Doppler effect due to disc rotation by the radiation flux that excludes the Doppler effect.