AIR PERSPECTIVE

The lighted place is closer to the viewer, so it seems brighter and brighter, and the farther - the paler and softer

The black and white contrast (the difference between the lighted and the shadow part of the object) disappears as the distance from the viewer becomes less sharp

The greatest brightness is obtained when the rays are inclined perpendicular to the surface. If the surface is smooth or shiny, a flare is formed on it. As the angle of inclination of the light rays to the surface decreases, its illumination decreases (partial shade) and is the least where the rays glide over the surface. At the same time, the border of light and shade is formed (line of the light-divider). Own shadow, as a rule, is lighter than the falling one, since the reflected rays of light fall on the unlit part of the object, which slightly illuminates it, creating a reflex. Reflex reveals the shape of the surface in the shade, so its own shadow is not uniform in tone.