sirds icon

Sirds 2.4

Buy and Download
  • Date: May 3, 2024
  • OS: macOS 10.9.5 or later
  • License: Mac App Store US$4.99
  • No free upgrade from 1.x or 2.0. Please purchase 2.4 at Mac App Store.
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Sirds lets you create Single Image Random Dot Stereogram (SIRDS) and Single Image Stereogram (SIS) images.

  • Generate a "wall-eyed" (divergent) or "cross-eyed" (convergent) stereogram
  • Customizable dimensions (resolution, observer distance, maximum depth, and eye separation)
  • Hidden-surface removal
  • Center to both sides method to minimize the distortion
  • Oversampling to give smooth depth levels
  • Stereogram viewing guide marks
  • Random Dot pattern generator
  • Supported depth map and pattern image file types: PNG, TIFF, JPEG, BMP, GIF, PICT, etc.
  • AppleScript scripting
  • Grand Central Dispatch support (generates a stereogram faster)

SIRDS or SIS is an autostereogram which does not require any equipment to view a three-dimensional scene.

* Stereogram algorithm licensed from W.A. Steer. Visit for technical details.

Free Sample depth map and pattern images: Download (4.8MB)

Visit Forum for more samples.


  • Choose the "New" menu item from the "File" menu or press command - N to create a new Sirds document.
  • Drop a depth map image onto a Sirds document window.
  • Change the random dot color and shape, or import a pattern (or tile) image.
  • Check the "Show Guide" option or press command - G to show the stereo view guide if you have trouble figuring out how deep you need to look.
guide image
Stereogram viewing guide marks look like this
when you are looking at the correct depth.
sirds screenshot
Sirds screenshot

Download (115MB)
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Animated wall-eyed stereogram samples. Click the depth map image above to open YouTube, and play. Visit Forum for more samples.

conchoid 120x90 contours 120x90 cube 120x90 cylinder 120x90
depth test 120x90 dodecahedron 120x90 layers 120x90 orbiter 120x90
pyramid 120x90 ripple 120x90 sphere 120x90 teapot 120x90
text 120x90 toroid 120x90 torus 120x90 torus knot 120x90

Sample wall-eyed stereograms created by Sirds for macOS

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