The document discusses key concepts related to value and light in art including: - Value refers to the lights and darks in a work of art and can be applied to colors. - Light is perceived through waves of energy from our eyes' light receptors. Shadows are caused by something blocking light. - Chiaroscuro uses light and dark to create the illusion of three-dimensional surfaces. - Artists can represent light realistically or expressively through techniques like tenebrism, emphasis, and dramatic use of value.

1. VALUE
•Value is an element of design.
•defined as the lights and darks in
an art work.
•black, white and ranges of grays.
•Value can be a color and the
lights (tints) and darks (shades) of
that color.

2. LIGHT
• We see light through
waves of energy
traveling through the
air that are recognized
by light and color
sensitive receptors in
our eyes.

3. • Light moves in straight
lines, a SHADOW
results from
something blocking
the light.

4. Key
• The relative lightness
or darkness of a
picture or the colors
employed in it; used in
preference to value
• High Key
• Low Key
• Full Value Range

5. Sphere-6 Categories of Light

6. CHIAROSCURO
• In drawing and
painting, the use of
light and dark to
create the effect of
three-dimensional,
modeled surfaces

12. Representing the Effects of Light
• Realistic
• Emphasis
• Expressive

13. Atmospheric Perspective

14. Expressive use of light

15. Emphasis

16. • Tenebrism--violent
chiaroscuro, dark
manner used to lend
mood or emotional
expression, typical of
Rembrandt
Rembrandt Drawing at a Window

18. Dramatic use of light and dark

21. Drapery & Figure/Ground
Relationship
• Elements are perceived as either figures
(distinct elements of focus) or ground (the
background or landscape on which the
figures rest).
• Drawing III can experiment and investigate
a melding of the drapery and figure
• What can be the similarities between
drapery and the human form?

28. Artist Ferdinand Hodler
Themes: symbolism
Swiss painter, 19th century
Expressionist, realism

31. Materials Needed
• Vine and willow charcoal
• Charcoal pencils, one soft, one medium
• Kneaded eraser
• White eraser
• Higher quality paper
• Spray fixative
• Tape

32. Additive Reductive Process
• Tape paper evenly around edges to create
a border
• Use vine or willow sticks and apply evenly
to paper, covering the entire surface
• Aim for middle range value
• Use vine or willow to draw preliminary
sketch

33. Additive Reductive Process
• Use soft charcoal pencil to shade in darkest
values
• Medium charcoal pencil for medium values
• Use kneaded eraser to create the light
values
• Use white eraser for highlights
• Work from general to specific
• Leave details until the end