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October 27, 2022

Why Draw or Paint from Life?

Why Draw or Paint from Life?

Why Draw or Paint Objects from Life?

It enhances essential skills such as visual-spatial thinking, depth perception, creativity, and color awareness. Most of us may be unfamiliar with the benefits.

Drawing or Painting from Reference Photographs

There's nothing wrong with using photographs for reference material. Cameras are a great tool depending on the situation, especially for animals or children that don't stay still. However, they do not fully replicate what we see with our own eyes.

The human eye is a subjective device that works harmoniously with your brain to create what is perceived in your mind. Our vision is complex. Like all other primates, we are unique in that we have both stereoscopic and color vision.

A camera is an absolute measurement device that measures light hitting a series of sensors. It only translates one view through one lens into a two-dimensional flattened image, which may create distortions. It can not replicate the spectrum of color that our human eyes can perceive, and unless you change the settings, most everything is in focus.

Visual-Spatial Thinking

It takes less time to draw from a reference photograph because the three-dimensional shapes have already been translated into two-dimensional shapes.

Drawing or painting from life involves relating one object to another and defining their unique relationships. This is called visual-spatial thinking skills.

Directly translating three-dimensional objects into two-dimensional objects is a skill that involves careful observation to translate shapes into forms that conveys perspective.

Depth Perception

Depth perception is the ability to see objects in three dimensions and to judge how far away an object is. It is a process called convergence. Stereoscopic vision is needed for depth perception and refers to a set of human eyes that are both located on the same plane and look forward with overlapping visual fields.

Although similar to the structure of a modern camera, our eyes will each get a slightly different view or perspective. From there onward, it's all about your brain, which has to fuse the two sets of information together to formulate a view.

Color Awareness

If you are capturing the color, this involves color awareness, a subjective visual human experience that may be influenced by life experiences, gender, age, culture, or biology. You will see fantastic color in life observation. A camera simply cannot replicate the color spectrum that human eyes perceive.

Humans have "Trichromatic" color vision. We have three types of cones or color photoreceptors in the retina (short-wave, middle-wave, or long-wave). Unlike other mammals, this allows us to distinguish between a large set of hue or color families. The cones see in color, but they need a lot of light to fully operate.

We see well in sunlight or moonlight because each eye contains a self-correcting aperture or an automatic focusing system. As light bends through the lens in each eye, you are constantly adjusting the focus and translating the light or photons into electrical impulses.

The more you study color with your own eyes, the more colors you can detect. Drawing or painting from life builds essential skills that will enrich your daily life and heighten your artistic growth. Like any other individual skill, it may be learned with practice.

October 4, 2022

Ancient Pigments

Ancient Pigments

Ancient Pigments

Greek and Roman statues appear white today, but many of these sculptures have confirmed traces of pigments. Statues were brightly painted with rich colors thousands of years ago, proven with modern infrared technology.

Pigments in their natural state (Acropolis Museum in Athens, Greece)

Pigments were used to make paints during the Greek and Roman times. Dyes and some dye-based inks are liquid, whereas pigments are not. They come from the earth's minerals.

Pigments in their natural state on display (Acropolis Museum in Athens, Greece).

Minerals are collected and pulverized into fine powder by a stone. The fine particles are then held together with a binder like oil or gum arabic. However, before oil or watercolor paints were invented, beeswax bound pigments together in ancient times.

Pigments were in their natural state on display (Acropolis Museum in Athens, Greece).

Lead white was also used. Created from a complex process that involved a ceramic pot with vinegar from grapes, producing acetic acid in the bottom. A metal hanging plate (usually lead or copper) was placed inside the pot and heated. This process exposed the metal to acidic vapors without any direct contact. 

Stone is used for pulverizing minerals down to finer particles on display (Acropolis Museum in Athens, Greece).

After ten days, a crust would cover the metal (white on lead and green on the copper), which was removed by scraping. The scrapings were washed with water and pulverized into powder using a mortar and pestle.

Mortar and pestle break down the minerals into smaller pieces on display (Acropolis Museum in Athens, Greece).

Ancient Greek pigments on display at the Acropolis Museum in Athens, Greece, include:

  • Azurite (Netural Blue)
  • Cinnabar (Red)
  • Conichalcite (Green)
  • Hematite (Red)
  • Hydroniumjarosite (Yellow)
  • Lapis Lazuli (Blue)
  • White from Melos Island (White)
  • Malachite (Green)
  • Ochre (Neutral Yellow)
  • Ochre from Cyprus (Neutral Yellow)

For more information on each pigment or the timeline of these pigments, visit "Pigments through the Ages."

References

  • 2018. Exhibit on pigments. The Acropolis Museum in Athens, Greece
  • 2022. "Pigments Through the Ages". Retrieved from http://www.webexhibits.org/pigments/