1. Objects closest to the eye have more detail than others that are further away
2. Details related to the Space element are a much simpler concept in Art. The objects closer to the viewer will be a detailed picture, and the picture will be sharp and readable. The things which are far away from the viewer will have blurred images
Method of creating the illusion of depth, or recession, in a painting or drawing by modulating color to simulate changes effected by the atmosphere on the colors of things seen at a distance
As objects recede, colors begin to fade and may shift toward blue
A straight line imagined to be behind and perpendicular to the picture plane. The orthogonal in a painting appear to converge on each other as they recede toward one or more vanishing points on the horizon.
Intersecting at or forming right angles. Because humans tend to describe angles as they relate to the horizontal plane, perpendicular often means vertical. All "Verticals" (lines perpendicular to the ground - posts, corners) are vertical.