Optical Toys
Optical Toys—interactive optical illusions (Thatcher effect, café wall, and more).
About This Site
What is it?
optical.toys collects interactive illusion demos—examples include the Thatcher effect, Shepard tone, café wall, lilac chaser and many others—each as a small toy page.
How to play
- Open Popular or New items from the index
- Interact with each demo’s controls
- Fullscreen helps for motion effects
- No account required
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