Re:[9fans] anaglyph

Re:[9fans] anaglyph

[steve.simon]

Good fun,

Is the perceived depth axis inverted if you put the red and blue
filters on the incorrect eyes (this image is of a hollow rather than an object)
, or
are we just fooling ourselves here?

-Steve


____________________Reply Separator____________________
Subject:    [9fans] anaglyph
Author: 9fans@cse.psu.edu
Date:       02/07/02 06:01

Hi all who might be interested,

a program for making anaglyphs (two-colour stereo images) from stereo pairs is
available from the neXt (not NeXT ;-))) server at
ftp://next.gli.cas.cz/plan9/native/anaglyph.tbz. Take a look at a sample
anaglyph, an image of the skeleton of an extinct protist ca 400 million years
old, at http://next.gli.cas.cz/anaglyph.ppm (you will need red -blue stereo
glasses, e.g. from www.agarscientific.com; however, any pair of red&blue
glass/film/acetate/transparency/etc.. will do as well).
Enjoy a true 3D on Plan 9 ;-) !

Cheers,
-- 
++pac.

Peter A. Cejchan
Paleobiology Lab, GLU Acad. Sci. CZ
<pac@next.gli.cas.cz>
[http | ftp]://next.gli.cas.cz

Re:[9fans] anaglyph

[Peter A. Cejchan]

... yes, the perceived dept axis is inverted (convex is perceived as concave) when red and cyan glasses are interchanged. Most probably, *I* fooled you, because I do not have (yet) the original red/blue spectacles, so I chose left and right deliberately (and, probably, just opposite to the convention). I'll fix it as soon as I am sure which colour belongs to which eye, by convention.

Many thanks for the feedback,
and have a nice day!
-- 
++pac.

Peter A. Cejchan
Paleobiology Lab, GLU Acad. Sci. CZ
<pac@next.gli.cas.cz>
[http | ftp]://next.gli.cas.cz