Depiction of the effect of the azimuthal observation angle on a warped disk. From the observer's view, the effective area of the accretion disk is the same. However, because the material in the disk orbits in the same direction in both configurations (shown by black arrows), the energy shifts change as a result of shadowing of the outer disk by the inner disk. On the right, the emitting material moving toward the observer (shown by the blue shaded region above the black hole) is not shadowed by the inner accretion disk. On the left, this same material is now shadowed by the inner accretion disk, as the inner disk prevents rays from the corona from illuminating the blue region below the black hole. The opposite effect occurs for the emitting material moving away from the observer, shown in red, where the relationship is reversed.