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Drawing Foundation Crash Course: Reduction Technique #319

Expand your technical drawing skills and deepen your understanding of light and shadow in human figure drawing with this traditional and highly effective reduction technique. This approach focuses on the dramatic interplay between light and dark, exploring strong tonal contrasts and the interaction between deep shadows and luminous, solid forms.

In this online mini course, consisting of two 2.5-hour sessions, we will work from a photographic reference of a plaster cast. This choice allows participants to concentrate on values and tonal relationships without the distraction of color. Because the surfaces of casts are smoother than those of the human body, they offer an ideal subject for observing and rendering subtle tonal transitions.

We will begin by broadly smearing charcoal across the paper, establishing an initial mid-tone surface. Over this, we’ll lightly sketch the figure using minimal lines, then lift charcoal with an eraser to reveal highlights and define forms. Through this process, tonal gradations will gradually emerge, turning the initial rough setup into a refined, glowing artwork with a rich tonal range.

This charcoal reduction technique is fundamental for artists who want to move from linear drawing to value-based modeling. It’s an essential study for understanding how light shapes form—an invaluable skill in both classical and contemporary figure drawing.

Open to all levels.

Materials:

  • Drawing paper: Ingres by Hahnemuhle, Fabriano or Canson, white or lightly toned
  • Charcoal: one stick of non-compressed, soft charcoal to prepare the paper; compressed charcoal pencils such as Wolff’s carbon in B, 2B, 4B, 6B or General’s in hard, medium, soft, extra soft.
  • White chalk in pencil or stick.
  • Erasing tools: a piece of Chamois, kneaded eraser, a mechanical eraser pencil such as Factis or Tombow Mono Zero
  • Sand Paper

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Availability of Courses' Recordings

As part of the services offered by the New Renaissance Atelier, you will have access to the recordings of the video sessions of all the online courses you purchased for one year.
You will find the links to the videos in your Personal Video Library that has been set up specifically for you. Please keep this Video library link on your desktop or in your browser for easy access.

In case You missed a course You are interested in, You can purchase the recording of the video sessions, by clicking on the menu above

roberto osti
roberto osti
Roberto Osti teaches figure drawing and human anatomy for artists at the New York Academy of Art and the Saint Joseph University. Formally trained as a medical illustrator before becoming a fine artist, Osti has contributed his work to many science and art publications. His paintings have been exhibited in galleries in Europe and the United States. He is the author of Basic Human Anatomy (2016), an art instruction best seller and classic reference book, and Dynamic Human Anatomy (2021). His latest book , Drawing the Body has been released in December 2024.
Drawing Foundation Crash Course: Reduction Technique #319
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