The following modules and image archives are made available for educational purposes:
- high resolution (640x480) animated GIF movies of the 32 point groups, using a helical object as general point;
- high resolution (120x1200) JPEG images of each point group (essentially the first frame of each of the animated GIF movies);
- an archive of Rayshade input files used to generate most of the things above.
Learn about wallpaper groups on Wikipedia