When a light source (the
sun) is shined upon the sphere, only the portion of the sphere which faces
the light source will receive illumination. The other side of the sphere will
remain in total darkness. Hence, half of the planet is in daylight and half
experiences nighttime. Areas which receive partial light experience dusk or
this point we need to make the distinction between a two-dimensional shape
and a three-dimensional form. The former remains on a flat plane without any visual
integration with its environment, or reality, as perceived by the human eye.
The latter integrates with our space, responding to the same atmospheric
conditions as do we. In a two-dimensional work, there is no
definition/distinction between figure and ground (objects or shapes may be
simply laid upon the surface of other objects or shapes), whereas in a
three-dimensional work, the figure seems to assert an independence from the
flatness of the canvas or piece of paper on which it has been drawn and
appears to protrude outward toward us.
the following images:
She-ba is composed of flat shapes placed or laid upon each other. We
read the arms, body, face, hands, and elements of the environment as flat cut-outs.
In contrast, Ingres’ Princess three dimensionally projects out of the
darkness of the room. The light areas of her face, dress, and chair appear to
almost come towards us or spill out of the picture into our own space. In the
latter, hills and valleys defined by light and shade are masterfully created
and make the princess look like a real person in real space.