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value scale

shading techniques

by JuliannaKunstler.com

Value scale and shading techniques. Lesson plan for beginners.

How do we measure the differences in light or dark necessary to recognize values with our eye or realize in paints our intended value design? We use a value scale or photographer's grayscale.

Somewhere along the way between psychology lab and art tests, the rule developed that the eye can discriminate no more than 9 distinct gradations in lightness, from lightest to darkest. Of course, we can see a much larger number of value differences than that. The actual limitation is that a larger number of value steps becomes impractical to recognize across different situations and match accurately with paints.

The nine step rule suggested the design of the standard nine step value scale, originally proposed by Denman Ross in 1907. His value terms are useful and easy to memorize.

value scale

More advanced shading assignment is here:

materials used:

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gallery

value scale
value scale
value scale

STEPS

There are many shading techniques.

Practice each of the technique below to create value scales.

Start with the darkest value.

Remember: smaller strokes are easier to control while shading

hatching

angled strokes

hatching - a shading technique that uses lines drawn closely together

hatching

cross-hatching

crosshatching

crosshatching - a shading technique that uses sets of lines (strokes) that overlap.

crosshatching

stippling (pointillism)

stippling

pointillism (stippling) - creating value in a drawing by placing dots.

This is time consuming technique. It looks good when all dots are the same size.

To change value - alter space between the dots.

Works great with a felt pen, fine point markers, etc.

pointillism

blending

blending

blending - a shading technique that is used mainly with soft materials (graphite, charcoal, pastel, etc.).

It involves rubbing strokes with a blending tool.

blending
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