Gotta love StumpleUpon.
I came across this article today that walks through step-by-step on how to make a StereoGram yourself with free open source software gimp, blender, and stereograph. The guide is written assuming you’re running on a Debian-based distro (like Ubuntu), but maybe there are other ways to run them in other platforms, I haven’t checked.
Anyway, I’ll post my own stereograms soon.
