Optical Illusions

Are these lines

parallel?

Are the red lines

straight?

Who Is The Tallest?

Inside or Outside?

Which Center Circle is Largest?

Is it moving?

How is this illusion achieved? What is happening?

Can You See It Move?

Which Way is it Moving?

A Circle Where There Are Squares

Spirals

How many lines make these spirals?

Are the line/s all going the same

direction through the whole picture?

3D Illusion

Circular & Star Illusions

What is the Illusion?

Circular & Star Illusions

Examples

Examples

Examples

Example

Impossible World

Examples

Fill your page

Use smooth clean lines

Use rulers and compasses

Use color or light and dark variation

No single line spirals will be accepted

Assignment: Create Your Own

References

Illusion History: http://www.optical-illusion-

pictures.com/distort.html

http://interactive.usc.edu/members/yuechuan/archiv

es/2004/09/

http://ava7.com/2006/11/double-optical-illusion.html

http://www.coolopticalillusions.com/crazy/crazy_optic

al_illusion.htm

http://www.impactlab.com/2009/02/04/not-just-your-

imagination/

Spiral: http://www.grand-

illusions.com/opticalillusions/pinwheel/

Motion Illusion:

http://www.sapdesignguild.org/resources/optical_illusi

ons/motion.html