Dream Weaver is a little program I wrote as a project for a graduate-level computer vision class a few years ago. It demonstrates a variety of simple visual illusions (caused in some cases by 'faults' in the biological structure of the retina, in others by 'limitations' in the brain's visual center, and yet others by a combination of physical and mental processes), and includes a short background on each one. I found it on one of my old archive disks, played with it a little, and decided it was cool enough to share with the rest of the world. So here you go.
Dream Weaver is absolutely free, but I retain the copyright. You can do anything you want with it, as long as you don't change it and/or claim it for your own and/or sell it as part of a package of less than ten items.
You may email to me at hrvmike@aol.com. However, I am offering no support of any kind for Dream Weaver, so don't expect a response. If the program doesn't work on your machine, crashes your machine, erases your hard disk (not that that could possibly happen), etc., don't come cryin' to me.