In article <4096893b$1@news.povray.org>,
 Andrew C on Mozilla <voi### [at] devnull> wrote:

> > I never had problems with that, but the red/green glasses might have
> > helped a lot on that one. The problems I had were with too many lines
> > when having many 4D objects in the same "scene". I'm talking about 4D
> > tetris here.
> 
> ??!?! :-| ?!/"\@_~??!
> 
> Four *&$^ dimensional *@$^%# tetris *@*@#?!?! :-|
> 
> OK, my head hurts... lol!

Tetris is arrangements of axis-aligned blocks, so 4D tetris wouldn't be 
that hard. Viewing it on a 2D screen would be, though. Probably have to 
view it as transparent 3D objects, colored to indicate offset along the 
fourth axis. Even then, objects falling along the fourth axis would 
appear to overlap in the 3-space slice...you would need multiple views 
as well.

Hmm...rotating the pieces might be a bit mind-bending, even if it is 
restricted to 90 degree turns. I'm pretty sure a 180 degree rotation in 
4-space can mirror the 3-space slice, though I'm still having trouble 
figuring out just what a 4-space rotation is.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: <chr### [at] tagpovrayorg>
http://tag.povray.org/

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