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The strong (and beautiful) rotation of the wheels occurs in relation to eye movements. On steady fixation the effect vanishes.
- Even when fixating steadily, illusory motion occurs on appearance/ disappearance
- Illusion does not depend on colour
- Rotation direction depends on the polarity of the luminance steps (I arranged these to evoke a gearbox effect here, by mirroring the images appropriately)
- Strength of illusion depends strongly on background luminance.
The background luminance slowly ramps from 0% to 100% automatically, or you can use the slider. The illusionary rotation is strongest for 50% gray (exact value will depend on your monitor 'gamma').
Play Rotating Snake Free Online at Arcade Boss Games. |
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