Yah they're really cool. There's nothing really overt about it that breaks the illusion, until it's run its course via the motion and angle change. There's many subtle clues that give an 'off' feeling and for some, I was able to imagine what the 'real' shape was before and during, in a vague way due to this and the nature of the movement, but it didn't really lessen the immediate trippy effect and still doesn't even after repeated viewing.
I just think the object-generation via persepectival goals of imaginary impossible shapes is really interesting, like that curved triangle. (Tangentially, there's also that kindergarten trick with graphs where you make a curve exclusively with straight lines.)
I also liked the music.
Those crazy Japanese! Don't they also have a class of invented useless objects, or a contest or something? Kind of like a variation of Rube Goldberg devices.
There's also that Japanese fellow whose work was popularised in English-speaking areas via an Animal Collective album cover.
Hiroshi Sugimoto has some cool sculpture photography at the end of that book with ocean pictures/empty theatres. Totally rambling now with only a nominal Japanese connection. ;p
Edit: Ahha!
http://en.wikipedia.org/wiki/Chind%C5%8Dgu
Edited: 2010-05-12, 6:02 am