Udonge + Tewi (2008-11-29)
Optical illusions.
Udonge and Tewi are PostScript programs that generate random optical
illusion patterns. You will need a PostScript interpretor to run
them. These commands usually works on Linux:
lpr udonge.ps
lpr tewi.ps
This will send the output to the attached printer. Output is
formatted for letter-sized paper (8.5" x 11").
Using GhostScript, you can pass in a Seed argument to select a
specific pattern. For example, to select pattern 9999 and write the
output to PDF files:
gs -dSeed=9999 -sDEVICE=pdfwrite -dNOPAUSE -dBATCH \
-sOutputFile=udonge.pdf udonge.ps
gs -dSeed=9999 -sDEVICE=pdfwrite -dNOPAUSE -dBATCH \
-sOutputFile=tewi.pdf tewi.ps
Caveats:
- The output is semi-complex, and not all programs deal with it
gracefully. CorelDraw 11 will consume excessive CPU while parsing
it, for example.
- The output is semi-psychedelic, and not all humans deal with it
gracefully. But if you are already used to excessive moving
bullets on screen, you shouldn't have problems staring at these
patterns all day ^_^;
Based on Reisen Udongein Inaba and Tewi Inaba from Touhou Kaeizuka.
--
omoikane@uguu.org - http://uguu.org/