1. A method comprising: outputting a first set of light beams directly towards a physical space without being redirected by a reflector; capturing a first image of the physical space; outputting a second set of light beams towards the reflector, the second set of light beams being redirected towards the physical space by the reflector; capturing a second image of the physical space; determining a first illumination level of the physical space associated with the first image and a second illumination level of the physical space associated with the second image; determining a ratio of the first illumination level and the second illumination level; and determining a depth of an object within the physical space based at least in part on the ratio.