Help-What Software Is This Canopus? Canopa? And Escher Vid . .

Last school year I stumbled upon a site that contained some video animations using a software called "Canopus" or "Canopa" or something like that. Apparently it could render three-dimensional movies from 2D images or something like that. I am not interested in the technical aspect - just the movies that were on the site.

If I remember correctly there were Escher movies, a Van Gogh, an animation of a Renaissance plaza, and a few others. Does anyone know what this software is called? Or better yet, the site I am referring to? I used to show some of these to my art students.

Thanks for any help.