REVIEW:

1. REVIEW: Match the vocabulary word up with the definition that best fits. Leave blank any you do not know.

3. Optical Art Op Art Uzumaki ampan" Concentric gray circles appear to be spirals.

4. Optical Art is a mathematically-themed form of Abstract art, which uses repetition of simple shapes and colors to create vibrating effects, an exaggerated sense of depth, and other visual effects. Victor Vasarely Bridget Riley In the 1960's, the term "Op Art" was coined to describe the work of a growing group of abstract painters. This movement was led by Victor Vasarely and Bridget Riley.

5. THINK-PAIR-SHARE: Think-write down your thoughts-share them with a partner Explain how the artist created an exaggerated sense of depth. Which objects look closer and why? How did he change the shapes to influence the perspective? Victor Vasarely

6. Op Art and The Science of Perception(the way we see things) The Op Artists studied the science behind how the eye and brain work together to perceive color, light, depth, perspective, size, shape, and motion. Op Art demonstrates the relationship between the eye’s (the organ that ‘sees’ patterns) and the brain (the organ that interprets patterns). Certain visual effects can cause confusion between these two organs, resulting in the perception optical illusions. The Hermann Grid (1870s) Ludimar Hermann

7. MOTION Optical Illusion and ‘Movement’ How can you create an illusion of movement on a static (non-moving) 2D surface? Studying the science of the eye gave Op Artists the answer. The use of repetition of pattern and line, often in high contrast black and white was one way Op Artists used to create this illusion of movement. The overall optical effect of the technique leads the viewer to see flashing and vibration. Riley’s Untitled Diagonal Curve (shown right) is a good example of this technique, where black and white wavy lines are placed close to one another on the canvas making the surface appear to shimmer and move before the eyes.

8. DEPTH Linear Perspective The way of drawing that shows depth on a flat (2-D) surface. Because it is based on geometry Op Art is, non-representational meaning the subject is not a representation of an object. However, despite this non-representational nature, the Op Artists made use of the traditional perspective techniques originally developed to create the feeling of depth and space.. Victor Vasarely’sGalaxie is a good example of the use of perspective in Op Art with the centralized vanishing point creating the illusion of a receding.

9. COLOR Color Theory and the Science of Color Colors appear to change depending on their closeness to other colors. For example, a red shape on a white background appears much lighter than the same red shape on a black background. Complementary Colors: (Colors opposite each other on the color wheel) when placed next to each other seem to be of different intensity than when placed far apart. Cool Colors– blues, purples & greens – are recessive and seem to sink back on the surface Warm Colors – red, orange and yellow are emergent and pop out

10. 1. These dots are completely white.

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13. 4. Do these lines look curved? All the lines are straight

14. 5. "Rollers" Rollers appear to rotate without effort. On the other hand, they appear to rotate in the opposite direction when observers see this image keeping blinking.

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16. Orthogonal Lines: the line you draw from the corner of an object to the vanishing point Where do all the orthogonal lines meet?

17. The Emphasis is on the area where all orthogonal lines meet.

18. Solve this artistic problem:

19. middle ground background foreground

25. VERTIGOVictor Vasarely VEGA-FELVictor Vasarely

26. TER-UR-NBVictor Vasarely RIVOTRILVictor Vasarely

27. THE END