Line profiles from a star with R = 10 km, M = 1.4 M_⊙, and a rotation frequency of 700 Hz seen by an observer at an inclination i = 20° computed by solving the geodesic equations using ARCMANCER. The black line shows the profile of a spherical star with a Schwarzschild exterior space-time. The blue line represents the profile of an oblate star with R_e = 10 km and a Schwarzschild exterior space-time. The red solid line denotes the profile of an oblate star with an exterior space-time that has a non-zero quadrupole moment (see text). The red dashed line shows the profile of an oblate star with a quadrupole moment that has been artificially increased by a factor of 4 (see text).