Knowledge

Facts, science and history of optical illusions.
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How to create optical illusion photos (for social media)

Stereograms

The history of optical illusions in art

Larger than life

The perspective of this photo create the optical illusion of a giant dog

Source/credit: Chicagothedog

The perspective of this photo creates the optical illusion of a giant dog. The low angle in combination with the two ladies standing farther away make it look like the oversized pup is bouncing around between them.
You can recreate this image using forced perspective.

More optical illusions:

Dog Log

Sand Bear

Giant Ship

Grate View of Central Park

Fire demon

Funny tree with a face

Ghost Cat

Dude, where is my car?

Cat portal

Cats

This patrol pup is a giant dog and can ride his owner around.

Pup Patrol

Dogs