The Secret of Stereograms: Creating Three-Dimensional Imagery

Have you ever seen a picture that you thought was ordinary at first, but then suddenly discovered a 3D image? These are autostereograms - popular images from the '90s that still amaze people today. If you focus your eyes correctly, you can see a building, an animal, or an image created by another author. Are you curious about how the 3D illusion works and how it is used in modern design and technology?
 

How does an autostereogram work?
 

An autostereogram is based on binocular vision – our eyes view the same image from different angles, and the brain combines this information to create a three-dimensional image. Unlike a regular image, volume in an autostereogram only appears when we change focus. When the eyes “look” beyond the image, the brain converts the repeating patterns into a three-dimensional image.

Tip: Take any autostereogram, tilt your head slightly, and look as if you are looking into the distance. After a few seconds, the image will “pop out.”

How is a stereogram created?
 

To create a stereogram, we need to pay attention to several important details:
 

• Repeating patterns – Dashed lines and shapes create a three-dimensional effect

• Shadow distribution – the contrast between recessed and raised parts enhances the 3D effect

• Innovative use of perspective – the rejection of traditional perspective creates an unexpected visual effect

Autostereograms in Modern Design
 

Although autostereograms were originally found in entertainment books and magazines, they are reaching new heights in graphic design. Web designers are using them to create innovative and interactive user experiences.
 

Use Areas:
 

• Website Design – Hidden 3D Image on Home Page Stimulates Viewer Interest

• Graphic Design – Illusionary Posters Amaze Audience

• Marketing – Brands Use This Technique to Engage Users

• Mobile Apps – Educational and Entertainment Apps

3D Design Trends for 2025
 

In 2025, 3D illusions and autostereograms will become even more popular. The development of virtual reality (VR) will take these illusions to new heights.

Key trends:
 

• Interactive 3D design on websites

• Minimalist but effective autostereograms

• Moving stereograms with animated elements
   

When looking at stereograms, we realize that, often, the most interesting thing is not visible at first glance. 3D illusions are not just a means of entertainment - today, they are successfully used in design and marketing to engage users and create a distinctive impression.