Ian Fieggen Ian's Graphics Site Pixelated Graphics Icon
Ian's Graphics Site - Computer graphics information and advice from a "PixelTech"
Optical Illusions
Crooked lines illusion There are some age old optical illusions that are especially effective as computer images because of the bright contrasts displayable on screen. Take a look at some that I've collected and/or re-drawn.


Black Dots
How many black dots can you count? Look carefully!
Black Dots illusion


Crooked Lines
These horizontal red lines are nice and straight, right?
Crooked Lines illusion


Moving Vortex
Move your head towards & away from the screen while staring at the dot.
Moving Vortex illusion


Checker Shadow
Would you believe that the squares marked A and B are exactly the same shade?
Checker Shadow illusion

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