1. What do you notice about these two
piecesofart?
Let’s watch some illusions:
https://www.youtube.com/watch?v=EoUfT_UR8Gc#t=172

2. Op Art
■ Stands for“Optical
Art”:art that
creates an optical
illusion
■ Optical illusion:an
image that tricks
your eyesinto
seeing something
that’snot there
Example ofan optical illusion:
The bar isthe exact same gray all
the way across.

3. More optical illusions
FraserSpiral I
llusion:This looks like a
spiral, but it is actually concentric
circles (circles inside of circles, all with
the same center).
Hermann Grid I
llusion:Black
dots appear and disappear
very quickly at the
intersections.

4. Op Art:
Do you remember what it stands for?
■ First started, and most
popular, in the 1960s
■ Also known as:
□ Geometric abstraction
□ Hard-edge abstraction
□ Perceptual abstraction
Bridget Riley. “Movement in Squares.” 1961.

5. What isOp Art all about?
■ Optical illusions
■ Eye-brain
connection
■ Elements of art:
□ Line
□ Shape
□ space
■ Principles of design:
□ Pattern
□ Movement
Whatisthe optical illusion in this
piece? Howdid the artist,
BridgetR
iley, create it?

6. FamousOp Artist:Bridget Riley
Born April 24th, 1931 in
London, England.
Cataract 3, 1967.

7. More of Bridget Riley’s Art
Loss, 1964.
Blaze 3, 1963.

8. Famous Op Artist:Victor Vasarely
Born in 1906 in Hungary, but
lived most of his life in Paris,
France;died in 1997.
He is often claimed as the
father of Op Art.

9. More of Victor Vasarely’sArt
Ambigu-B, 1970.
Cheyt-M

10. Vanishing Point: The point at
which a thing disappears or ceases
■.to exist
Vanishing Point

11. Vanishing Points?

12. OPTIO
N 1: Geometric Op Art
created by students

13. More student work
* Where
are the
vanishing
points?

22. OPTION 2: ORGANIC OP ART
*Free flowing wavy lines. Less straight and rigid.

25. These are just ideas! You will have to include at
least 3 colors.

27. Option 3: You can also combine Geometric with Organic!

29. -You will be using colored pencils to
complete this project!
NO! Scribbly lines and not bold!
YES! Bold colors – Press hard with
colored pencil!

30. To review, Op ArtProject:
■ Create original
Geometric OR
Organic Design, OR
a combination of
both.
■ Use colored pencils
& include at least 3
colors.
■ Must be an illusion!

31. Your 1st Practice Technique: Sphere