Atmospheric perspective. Often referred to as aerial perspective, atmospheric perspective references the compounded effect that air and light have on objects as they recede. As the reflective light off the object filters its way through the intervening air to the viewer’s eyes (referred to as the line of sight), the contrast between the object and its surroundings diminish, detail decreases, color saturation (chroma) weakens and shifts towards the skylight color, which is generally blue unless it is sunrise or sunset.