4 ! a screen saver and locker for the X window system
10 ! See "man xscreensaver" for more info. The latest version is always
11 ! available at http://www.jwz.org/xscreensaver/
14 ! These resources, when placed in the system-wide app-defaults directory
15 ! (e.g., /usr/lib/X11/app-defaults/XScreenSaver) will provide the default
16 ! settings for new users. However, if you have a ".xscreensaver" file in
17 ! your home directory, the settings in that file take precedence.
20 ! Don't hand this file to "xrdb" -- that isn't how app-defaults files work.
21 ! Though app-defaults files have (mostly) the same syntax as your ~/.Xdefaults
22 ! file, they are used differently, and if you run this file through xrdb,
23 ! you will probably mess things up.
25 #error Do not run app-defaults files through xrdb!
26 #error That does not do what you might expect.
27 #error Put this file in /usr/lib/X11/app-defaults/XScreenSaver instead.
29 ! /* (xrdb prevention kludge: whole file)
34 *passwdTimeout: 0:00:30
39 *grabDesktopImages: True
40 *grabVideoFrames: False
41 *chooseRandomImages: False
53 *splashDuration: 0:00:05
57 *overlayTextForeground: #FFFF00
58 *overlayTextBackground: #000000
60 *font: *-medium-r-*-140-*-m-*
62 ! The default is to use these extensions if available (as noted.)
63 *sgiSaverExtension: True
64 *mitSaverExtension: False
68 ! This is what the "Demo" button on the splash screen runs (/bin/sh syntax.)
69 *demoCommand: xscreensaver-demo
71 ! This is what the "Prefs" button on the splash screen runs (/bin/sh syntax.)
72 *prefsCommand: xscreensaver-demo -prefs
74 ! This is the URL that the "Help" button on the splash screen loads.
75 *helpURL: http://www.jwz.org/xscreensaver/man.html
77 ! This is how the "Help" button loads URLs (/bin/sh syntax.)
78 ! The "helpURL" will be substituted for up to two occurrences of "%s".
79 *loadURL: netscape -remote 'openURL(%s)' || netscape '%s'
81 ! This is what the "Manual" button in xscreensaver-demo runs (/bin/sh syntax.)
82 *manualCommand: xterm +sb -fg black -bg gray75 -T '%s manual' \
83 -e /bin/sh -c 'man "%s" || read foo'
84 ! Gnome folks might prefer this:
85 !*manualCommand: gnome-help-browser 'man:%s'
88 ! The format used for printing the date and time in the password dialog box
89 ! (see the strftime(3) manual page for details.)
90 *dateFormat: %d-%b-%y (%a); %I:%M %p
91 ! To show the time only:
92 ! *dateFormat: %I:%M %p
97 ! Turning on "installColormap" interacts erratically with twm and tvtwm,
98 ! but seems to work fine with mwm and olwm. Try it and see. If your
99 ! screen turns some color other than black, the window manager is buggy,
100 ! and you need to set this resource to False (or get a WM that works.)
102 *installColormap: True
105 ! Any program which can draw on the root window will work as a screensaver.
106 ! The following resource enumerates them.
108 ! Programs are separated by newlines (specified in resource files with \n).
109 ! Lines may be continued with a lone \ at the end of the line.
111 ! Each line is an `sh' command.
113 ! If the first (non-blank) character on the line is "-", then that means
114 ! that this command is disabled: it's still in the list, but it won't ever
115 ! be used. (This is just to make it easy to disable and then re-enable
118 ! If the first word on the line is the name of a visual followed by a
119 ! colon, then that visual will be used for the program, if it is available.
120 ! If no such visual is available, then the program will be skipped. In
121 ! this way, you can specify that you want certain programs to run only
122 ! on color screens, and others only on mono screens, by making use of the
123 ! magic visual names "color" and "mono". Likewise, if some hacks prefer
124 ! colormaps, but others prefer 24-bit windows, that also can be arranged
125 ! (in this case, by using "PseudoColor:" versus "TrueColor:".)
127 ! Some of the screenhacks are written using OpenGL. OpenGL programs are
128 ! a bit different than normal X programs, in that they prefer visuals that
129 ! are *half* as deep as the screen. You can tell xscreensaver to select a
130 ! good visual for a GL program by using the magic visual name "GL".
132 ! All programs must be launched in such a way that they draw on the root
133 ! window; they should not be spawned in the background with "&". If shell
134 ! metacharacters are used, they must be understandable to `sh', not `csh'
135 ! (the $SHELL variable is not consulted, for unfortunate but good reasons.)
137 ! Be sure to check out Demo Mode: run the `xscreensaver-demo' program to
138 ! edit the current list of programs interactively, try out the various modes,
139 ! and change other parameters. See the man page for details.
142 "Qix (solid)" qix -root -solid -delay 0 -segments 100 \n\
143 "Qix (transparent)" qix -root -count 4 -solid -transparent \n\
144 "Qix (linear)" qix -root -count 5 -solid -transparent \
145 -linear -segments 250 -size 100 \n\
146 - mono: "Qix (xor)" qix -root -linear -count 5 -size 200 \
147 -spread 30 -segments 75 -solid -xor \n\
149 "Attraction (balls)" attraction -root -mode balls \n\
150 "Attraction (lines)" attraction -root -mode lines -points 3 \
152 - "Attraction (poly)" attraction -root -mode polygons \n\
153 "Attraction (splines)" attraction -root -mode splines -segments \
155 "Attraction (orbital)" attraction -root -mode lines -radius 300 \
156 -orbit -vmult 0.5 \n\
162 rorschach -root -offset 7 \n\
166 slidescreen -root \n\
167 decayscreen -root \n\
169 blitspin -root -grab \n\
173 "Ripples (oily)" ripples -root -oily -light 2 \n\
174 "Ripples (stir)" ripples -root -oily -light 2 -stir \n\
175 "Ripples (desktop)" ripples -root -water -light 6 \n\
191 "Grav (trails)" grav -root -trail -decay \n\
206 goop -root -max-velocity 0.5 -elasticity \
209 "Starfish (blob)" starfish -root -blob \n\
212 coral -root -delay 0 \n\
214 triangle -root -delay 1 \n\
221 kaleidescope -root \n\
223 xlyap -root -randomize \n\
227 interference -root \n\
228 truchet -root -randomize \n\
234 "RD-Bomb (mobile)" rd-bomb -root -speed 1 -size 0.1 \n\
243 "Wander (spots)" wander -root -advance 0 -size 10 -circles \
244 True -length 10000 -reset 100000 \n\
248 petri -root -size 2 -count 20 \n\
249 "Petri 2" petri -root -minlifespeed 0.02 \
250 -maxlifespeed 0.03 -minlifespan 1 \
251 -maxlifespan 1 -instantdeathchan 0 \
252 -minorchan 0 -anychan 0.3 \n\
258 xspirograph -root \n\
260 - "NerveRot (dense)" nerverot -root -count 1000 \n\
261 - "NerveRot (thick)" nerverot -root -count 100 -line-width 4 \
262 -max-nerve-radius 0.8 -nervousness 0.5 -db \n\
264 - "Zoom (Fatbits)" zoom -root \n\
265 "Zoom (Lenses)" zoom -root -lenses \n\
267 - "RotZoomer (mobile)" rotzoomer -root -move \n\
268 - "RotZoomer (sweep)" rotzoomer -root -sweep \n\
269 whirlwindwarp -root \n\
270 color: bubbles -root \n\
271 default-n: webcollage -root \n\
272 default-n: "WebCollage (whacked)" \
273 webcollage -root -filter \
274 'vidwhacker -stdin -stdout' \n\
275 - default-n: vidwhacker -root \n\
277 @GL_KLUDGE@ GL: gears -root \n\
278 @GL_KLUDGE@ GL: "Gears (planetary)" gears -root -planetary \n\
279 @GL_KLUDGE@ GL: superquadrics -root \n\
280 @GL_KLUDGE@ GL: morph3d -root \n\
281 @GL_KLUDGE@ GL: cage -root \n\
282 @GL_KLUDGE@ GL: moebius -root \n\
283 @GL_KLUDGE@ GL: stairs -root \n\
284 @GL_KLUDGE@ GL: pipes -root \n\
285 @GL_KLUDGE@ GL: sproingies -root \n\
286 @GL_KLUDGE@ GL: rubik -root \n\
287 @GL_KLUDGE@ GL: atlantis -root \n\
288 @GL_KLUDGE@ GL: lament -root \n\
289 @GL_KLUDGE@ GL: bubble3d -root \n\
290 @GL_KLUDGE@ GL: glplanet -root \n\
291 @GL_KLUDGE@ GL: pulsar -root \n\
292 - GL: "Pulsar (textures)" \
293 pulsar -root -texture -mipmap \
294 -texture_quality -light -fog \n\
295 @GLE_KLUDGE@GL: extrusion -root \n\
296 @GL_KLUDGE@ GL: sierpinski3d -root \n\
297 @GL_KLUDGE@ GL: gflux -root \n\
298 @GL_KLUDGE@ GL: stonerview -root \n\
299 @GL_KLUDGE@ GL: starwars -root \n\
300 @GL_KLUDGE@ GL: gltext -root \n\
301 @GL_KLUDGE@ GL: "GLText (clock)" gltext -text "%A%n%d %b %Y%n%r" -root \n\
302 @GL_KLUDGE@ GL: "Molecule" molecule -root \n\
303 @GL_KLUDGE@ GL: "Molecule (lumpy)" molecule -root -no-bonds -no-labels \n\
304 @GL_KLUDGE@ GL: dangerball -root \n\
306 - xdaliclock -root -builtin3 -cycle \n\
307 - default-n: xearth -nofork -nostars -ncolors 50 \
308 -night 3 -wait 0 -timewarp 400.0 -pos \
310 - ssystem -fullscreen :32 \n\
311 - xmountains -b -M -Z 0 -r 1 \n\
312 - "XMountains (top)" xmountains -b -M -Z 0 -r 1 -m \n\
313 - xaos -root -autopilot -incoloring -1 \
314 -nogui -outcoloring -1 \n\
315 - xfishtank -d -s \n\
322 ! To display a randomized slideshow of images, you can do something like this:
324 ! default-n: "Slideshow" xv -root -rmode 5 -random -viewonly \
325 ! -wloop -wait 30 $HOME/bitmaps/*.jpg \n\
327 ! or, if you prefer "xli" to "xv", like this: (but note that xli's "-delay"
328 ! option doesn't work in conjunction with "-onroot", so you need to add a
329 ! line for each image individually... "xv" is better in this respect.)
331 ! default-n: xli -quiet -onroot -center -border black \
332 ! $HOME/bitmaps/pic1.jpg \n\
333 ! default-n: xli -quiet -onroot -center -border black \
334 ! $HOME/bitmaps/pic2.jpg \n\
335 ! default-n: xli -quiet -onroot -center -border black \
336 ! $HOME/bitmaps/pic3.jpg \n\
338 ! Note that we've used "default-n" as the visual name, rather than just
339 ! "default": this means "default visual, no install", that is, it's like
340 ! specifying the command-line arguments "-visual default -no-install".
341 ! This is necessary because, when XV or XLI arerunning in "-root" mode, they
342 ! always assume that the default visual and colormap are being used, rather
343 ! than examining the window it is drawing on to see what visual and colormap
344 ! it has. If we didn't force the default visual to be used, we would get an
345 ! X error. If we didn't force the default colormap to be installed, the
346 ! colors would be all wrong. "default-i" may also be used as a visual name
347 ! (meaning, "-visual default -install") but you probably won't ever need
351 ! Some of the GL demos that SGI ships work with XScreenSaver; most don't.
352 ! XScreenSaver includes a program (not built or installed by default)
353 ! called "xscreensaver-sgigl". To use the SGI demos with XScreenSaver,
354 ! build that program, and use it to launch the SGI demos. For example,
355 ! on Irix 6.2, you can do this:
357 ! xscreensaver-sgigl /usr/demos/bin/ep -S
358 ! xscreensaver-sgigl /usr/demos/bin/bongo
360 ! On Irix 6.3, things have moved, so you need to do it like this:
362 ! xscreensaver-sgigl /usr/sbin/ep -S
364 ! (But note that, on non-SGIs, the bundled "stonerview" hack is a decent
365 ! clone of "ep". Yay!)
367 ! You can also use the "ant" demo, but first you need to wrap a shell script
368 ! around it that cds to its home directory, so that it can find its files;
369 ! and also pass it the -S argument, to prevent it from forking. What a mess!
370 ! Basically, the SGI demo writers went out of their way to make my life hell.
374 !=============================================================================
376 ! You probably don't want to change anything after this point.
378 !=============================================================================
381 XScreenSaver.pointerPollTime: 0:00:05
382 XScreenSaver.initialDelay: 0:00:00
383 XScreenSaver.windowCreationTimeout: 0:00:30
384 XScreenSaver.bourneShell: /bin/sh
387 ! Resources for the password and splash-screen dialog boxes of
388 ! the "xscreensaver" daemon.
390 *Dialog.headingFont: *-times-bold-r-*-*-*-180-*-*-*-iso8859-1
391 *Dialog.bodyFont: *-helvetica-bold-r-*-*-*-140-*-*-*-iso8859-1
392 *Dialog.labelFont: *-helvetica-bold-r-*-*-*-140-*-*-*-iso8859-1
393 *Dialog.buttonFont: *-helvetica-bold-r-*-*-*-140-*-*-*-iso8859-1
394 *Dialog.dateFont: *-courier-medium-r-*-*-*-80-*-*-*-iso8859-1
395 *Dialog.foreground: #000000
396 *Dialog.background: #BFBFBF
397 *Dialog.Button.foreground: #000000
398 *Dialog.Button.background: #D0D0D0
399 *Dialog.text.foreground: #000000
400 *Dialog.text.background: #FFFFFF
401 *passwd.thermometer.foreground: #FF0000
402 *passwd.thermometer.background: #FFFFFF
403 *Dialog.topShadowColor: #E7E7E7
404 *Dialog.bottomShadowColor: #737373
405 *Dialog.logo.width: 210
406 *Dialog.logo.height: 210
407 *Dialog.internalBorderWidth: 30
408 *Dialog.borderWidth: 1
409 *Dialog.shadowThickness: 4
411 *passwd.heading.label: XScreenSaver %s
412 *passwd.body.label: This display is locked.
413 *passwd.user.label: User:
414 *passwd.passwd.label: Password:
415 *passwd.passwdFont: *-courier-medium-r-*-*-*-140-*-*-*-iso8859-1
416 *passwd.thermometer.width: 8
418 *splash.heading.label: XScreenSaver %s
419 *splash.body.label: Copyright © 1991-2001 by
420 *splash.body2.label: Jamie Zawinski <jwz@jwz.org>
421 *splash.demo.label: Demo
422 *splash.prefs.label: Prefs
423 *splash.help.label: Help
426 ! Resources for the Motif dialog boxes of the "xscreensaver-demo" program.
428 *fontList: *-helvetica-medium-r-*-*-*-120-*-*-*-iso8859-1
429 *demoDialog*label1.fontList: *-helvetica-medium-r-*-*-*-140-*-*-*-iso8859-1
430 *cmdText.fontList: *-courier-medium-r-*-*-*-120-*-*-*-iso8859-1
431 *label0.fontList: *-helvetica-bold-r-*-*-*-140-*-*-*-iso8859-1
432 XScreenSaver*doc.fontList: *-helvetica-medium-r-*-*-*-100-*-*-*-iso8859-1
433 ! above must be fully qualified to get around *sgiMode.
437 *XmTextField.foreground: #000000
438 *XmTextField.background: #FFFFFF
439 *list.foreground: #000000
440 *list.background: #FFFFFF
442 *ApplicationShell.title: XScreenSaver
443 *warning.title: XScreenSaver
444 *warning_popup.title: XScreenSaver
445 *allowShellResize: True
448 *menubar*file.labelString: File
449 *menubar*file.mnemonic: F
450 *file.blank.labelString: Blank Screen Now
451 *file.blank.mnemonic: B
452 *file.lock.labelString: Lock Screen Now
453 *file.lock.mnemonic: L
454 *file.kill.labelString: Kill Daemon
455 *file.kill.mnemonic: K
456 *file.restart.labelString: Restart Daemon
457 *file.restart.mnemonic: R
458 *file.exit.labelString: Exit
459 *file.exit.mnemonic: E
461 *menubar*edit.labelString: Edit
462 *menubar*edit.mnemonic: E
463 *edit.cut.labelString: Cut
464 *edit.cut.mnemonic: u
465 *edit.copy.labelString: Copy
466 *edit.copy.mnemonic: C
467 *edit.paste.labelString: Paste
468 *edit.paste.mnemonic: P
470 *menubar*help.labelString: Help
471 *menubar*help.mnemonic: H
472 *help.about.labelString: About...
473 *help.about.mnemonic: A
474 *help.docMenu.labelString: Documentation...
475 *help.docMenu.mnemonic: D
477 *demoTab.marginWidth: 10
478 *optionsTab.marginWidth: 10
480 *XmScrolledWindow.topOffset: 10
481 *XmScrolledWindow.leftOffset: 10
482 *demoTab.topOffset: 4
483 *form1.bottomOffset: 10
484 *form3.leftOffset: 10
485 *form3.rightOffset: 10
487 *frame.bottomOffset: 10
488 *enabled.topOffset: 10
489 *visLabel.topOffset: 10
491 *form4.bottomOffset: 4
493 *XmComboBox.marginWidth: 0
494 *XmComboBox.marginHeight: 0
496 *demo.marginWidth: 30
497 *demo.marginHeight: 4
502 *down.marginHeight: 4
505 *frame.traversalOn: False
507 *list.automaticSelection: True
508 *list.visibleItemCount: 20
512 *demoTab.labelString: Graphics Demos
513 *optionsTab.labelString: Screensaver Options
514 *down.labelString: \\/
516 *frameLabel.labelString:
517 *cmdLabel.labelString: Command Line:
518 *cmdLabel.alignment: ALIGNMENT_BEGINNING
519 *enabled.labelString: Enabled
520 *visLabel.labelString: Visual:
521 *visLabel.alignment: ALIGNMENT_END
522 *visLabel.leftOffset: 20
523 *demo.labelString: Demo
524 *man.labelString: Documentation...
525 *done.labelString: Quit
527 *preferencesLabel.labelString: XScreenSaver Parameters
529 *timeoutLabel.labelString: Saver Timeout
530 *cycleLabel.labelString: Cycle Timeout
531 *fadeSecondsLabel.labelString: Fade Duration
532 *fadeTicksLabel.labelString: Fade Ticks
533 *lockLabel.labelString: Lock Timeout
534 *passwdLabel.labelString: Password Timeout
535 *preferencesForm*XmTextField.columns: 8
537 *verboseToggle.labelString: Verbose
538 *cmapToggle.labelString: Install Colormap
539 *fadeToggle.labelString: Fade Colormap
540 *unfadeToggle.labelString: Unfade Colormap
541 *lockToggle.labelString: Require Password
548 *Cancel.marginWidth: 30
549 *Cancel.marginHeight: 4
550 *Cancel.rightOffset: 10
551 *Cancel.bottomOffset: 10
556 !=============================================================================
558 ! Online documentation for xscreensaver-demo.
560 !=============================================================================
562 ! sanity check -- hands off.
563 *hacks.documentation.isInstalled: True
565 *hacks.qix.documentation: \
566 This is the swiss army chainsaw of qix programs. It bounces a series \
567 of line segments around the screen, and uses variations on this basic \
568 motion pattern to produce all sorts of different presentations: line \
569 segments, filled polygons, overlapping translucent areas... Written \
572 *hacks.attraction.documentation: \
573 Like qix, this uses a simple simple motion model to generate many \
574 different display modes. The control points attract each other up to \
575 a certain distance, and then begin to repel each other. The \
576 attraction/repulsion is proportional to the distance between any two \
577 particles, similar to the strong and weak nuclear forces. \
579 One of the most interesting ways to watch this hack is simply as \
580 bouncing balls, because their motions and interactions with each \
581 other are so odd. Sometimes two balls will get into a tight orbit \
582 around each other, to be interrupted later by a third, or by the edge \
583 of the screen. It looks quite chaotic. \
585 Written by Jamie Zawinski, based on Lisp code by John Pezaris.
587 *hacks.pyro.documentation: \
588 Pyro draws exploding fireworks. Blah blah blah. Written by Jamie \
591 *hacks.helix.documentation: \
592 This repeatedly generates spirally string-art-ish patterns. Written \
595 *hacks.pedal.documentation: \
596 This is sort of a combination spirograph/string-art. It generates a \
597 large, complex polygon, and lets the X server do the bulk of the work \
598 by giving it an even/odd winding rule. Written by Dale Moore, based \
599 on some ancient PDP-11 code.
601 *hacks.rorschach.documentation: \
602 This generates random inkblot patterns. The algorithm is deceptively \
603 simple for how well it works; it merely walks a dot around the screen \
604 randomly, and then reflects the image horizontally, vertically, or \
605 both. Any deep-seated neurotic tendencies which this program reveals \
606 are your own problem. Written by Jamie Zawinski.
608 *hacks.hopalong.documentation: \
609 This draws lacy fractal patterns, based on iteration in the imaginary \
610 plane, from a 1986 Scientific American article. Mostly written by \
613 *hacks.greynetic.documentation: \
614 This draws random colored and stippled rectangles. Written by Jamie \
617 *hacks.imsmap.name: IMSmap
618 *hacks.imsmap.documentation: \
619 This generates random cloud-like patterns. It looks quite different \
620 in monochrome and color. The basic idea is to take four points on \
621 the edge of the image, and assign each a random ``elevation''. Then \
622 find the point between them, and give it a value which is the average \
623 of the other four, plus some small random offset. Then coloration is \
624 done based on elevation. \
626 The color selection is done by binding the elevation to either hue, \
627 saturation, or brightness, and assigning random values to the others. \
628 The ``brightness'' mode tends to yield cloudlike patterns, and the \
629 others tend to generate images that look like heat-maps or CAT-scans. \
630 Written by Juergen Nickelsen and Jamie Zawinski.
632 *hacks.slidescreen.name: SlideScreen
633 *hacks.slidescreen.documentation: \
634 This grabs an image of whatever is on your screen, divides it into a \
635 grid, and then randomly shuffles the squares around as if it was one \
636 of those annoying ``16-puzzle'' games, where there is a grid of \
637 squares, one of which is missing. I hate trying to solve those \
638 puzzles, but watching one permute itself is more amusing. Written by \
641 *hacks.decayscreen.name: DecayScreen
642 *hacks.decayscreen.documentation: \
643 This grabs an image of whatever is on your screen, and makes it melt. \
644 You've no doubt seen this effect before, but no screensaver would \
645 really be complete without it. It works best if there's something \
646 colorful visible. Warning, if the effect continues after the screen \
647 saver is off, seek medical attention. Written by David Wald and \
650 A number of these screenhacks have the ability to take an image of \
651 your desktop and manipulate it in some way. On SGI systems, these \
652 programs are able to (at random) pull their source image from the \
653 system's video input instead! This works nicely if you leave some \
654 some random television station plugged in.
656 *hacks.jigsaw.documentation: \
657 This grabs a screen image, carves it up into a jigsaw puzzle, \
658 shuffles it, and then solves the puzzle. This works especially well \
659 when you feed it an external video signal instead of letting it grab \
660 the screen image (actually, I guess this is generally true...) When \
661 it is grabbing a video image, it is sometimes pretty hard to guess \
662 what the image is going to look like once the puzzle is solved. \
663 Written by Jamie Zawinski.
665 *hacks.blitspin.name: BlitSpin
666 *hacks.blitspin.documentation: \
667 The ``blitspin'' hack repeatedly rotates a bitmap by 90 degrees by \
668 using logical operations: the bitmap is divided into quadrants, and \
669 the quadrants are shifted clockwise. Then the same thing is done \
670 again with progressively smaller quadrants, except that all \
671 sub-quadrants of a given size are rotated in parallel. Written by \
672 Jamie Zawinski based on some cool SmallTalk code seen in in Byte \
675 As you watch it, the image appears to dissolve into static and then \
676 reconstitute itself, but rotated. You can provide the image to use, \
677 as an XBM or XPM file, or tell it to grab a screen image and rotate \
680 *hacks.slip.documentation: \
681 This program throws some random bits on the screen, then sucks them \
682 through a jet engine and spews them out the other side. To avoid \
683 turning the image completely to mush, every now and then it will and \
684 then it interjects some splashes of color into the scene, or go into \
685 a spin cycle, or stretch the image like taffy, or (this is my \
686 addition) grab an image of your current desktop to chew on. \
687 Originally written by Scott Draves; whacked on by Jamie Zawinski.
689 *hacks.distort.documentation: \
690 This hack grabs an image of the screen, and then lets a transparent \
691 lens wander around the screen, magnifying whatever is underneath. \
692 Written by Jonas Munsin.
694 *hacks.spotlight.documentation: \
695 Draws a spotlight scanning across a black screen, illumnating the \
696 underlying desktop when it passes. Written by Rick Schultz.
698 *hacks.hypercube.documentation: \
699 This displays 2D projections of the sequence of 3D objects which are \
700 the projections of the 4D analog to the cube: as a square is composed \
701 of four lines, each touching two others; and a cube is composed of \
702 six squares, each touching four others; a hypercube is composed of \
703 eight cubes, each touching six others. To make it easier to \
704 visualize the rotation, it uses a different color for the edges of \
705 each face. Don't think about it too long, or your brain will melt. \
706 Written by Joe Keane, Fritz Mueller, and Jamie Zawinski.
708 *hacks.hyperball.documentation: \
709 Hyperball is to hypercube as dodecahedron is to cube: this displays \
710 a 2D projection of the sequence of 3D objects which are the projections \
711 of the 4D analog to the dodecahedron. Written by Joe Keane.
713 *hacks.halo.documentation: \
714 This draws trippy psychedelic circular patterns that hurt to look at. \
715 It can also animate the control-points, but that takes a lot of CPU \
716 and bandwidth. Written by Jamie Zawinski.
718 *hacks.maze.documentation: \
719 This is the ancient X maze demo, modified to work with xscreensaver. \
720 It generates a random maze, then solves it with visual feedback. \
721 Originally by Jim Randell; modified by a cast of thousands.
723 *hacks.noseguy.documentation: \
724 A little man with a big nose wanders around your screen saying \
725 things. The things which he says can come from a file, or from an \
726 external program like `zippy' or `fortune'. This was extracted from \
727 `xnlock' by Dan Heller. Colorized by Jamie Zawinski.
729 *hacks.flame.documentation: \
730 Another iterative fractal generator. Written by Scott Draves.
732 *hacks.lmorph.name: LMorph
733 *hacks.lmorph.documentation: \
734 This generates random spline-ish line drawings and morphs between \
735 them. Written by Sverre H. Huseby and Glenn T. Lines.
737 *hacks.deco.documentation: \
738 This one subdivides and colors rectangles randomly. It looks kind of \
739 like Brady-Bunch-era rec-room wall paneling. (Raven says: ``this \
740 screensaver is ugly enough to peel paint.'') Written by Jamie \
741 Zawinski, inspired by Java code by Michael Bayne.
743 *hacks.moire.documentation: \
744 This one draws cool circular interference patterns. Most of the \
745 circles you see aren't explicitly rendered, but show up as a result \
746 of interactions between the other pixels that were drawn. Written by \
747 Jamie Zawinski, inspired by Java code by Michael Bayne. As he \
748 pointed out, the beauty of this one is that the heart of the display \
749 algorithm can be expressed with just a pair of loops and a handful of \
750 arithmetic, giving it a high ``display hack metric''.
752 *hacks.moire2.documentation: \
753 Another example of the fun you can have with moire \
754 interference patterns; this hack generates fields of concentric \
755 circles or ovals, and combines the planes with various operations. \
756 The planes are moving independently of one another, causing the \
757 interference lines to ``spray.'' Written by Jamie Zawinski.
759 *hacks.lightning.documentation: \
760 This one draws crackling fractal lightning bolts. It's simple, \
761 direct, and to the point. If only it had sound... Written by Keith \
764 *hacks.strange.documentation: \
765 This draws strange attractors: it's a colorful, \
766 unpredictably-animating field of dots that swoops and twists around. \
767 The motion is very nice. Written by Massimino Pascal.
769 *hacks.spiral.documentation: \
770 Moving circular patterns, by Peter Schmitzberger. Moving circular \
771 patterns means moire; interference patterns, of course.
773 *hacks.laser.documentation: \
774 Moving radiating lines, that look vaguely like scanning laser beams. \
775 Written by Pascal Pensa. (Frankie say: relax.)
777 *hacks.grav.documentation: \
778 This program draws a simple orbital simulation. If you turn on \
779 trails, it looks kind of like a cloud-chamber photograph. Written \
782 *hacks.drift.documentation: \
783 How could one possibly describe this except as ``drifting recursive \
784 fractal cosmic flames?'' Another fine hack from the Scott Draves \
785 collection of fine hacks.
788 *hacks.ifs.documentation: \
789 This one draws spinning, colliding iterated-function-system images. \
790 Written by Massimino Pascal.
792 *hacks.julia.documentation: \
793 This one draws spinning, animating (are you detecting a pattern here \
794 yet?) explorations of the Julia set. You've probably seen static \
795 images of this fractal form before, but it's a lot of fun to watch in \
796 motion as well. One interesting thing is that there is a small \
797 swinging dot passing in front of the image, which indicates the \
798 control point from which the rest of the image was generated. \
799 Written by Sean McCullough.
801 *hacks.penrose.documentation: \
802 Draws quasiperiodic tilings; think of the implications on modern \
803 formica technology. Written by Timo Korvola. \
805 In April 1997, Sir Roger Penrose, a British math professor who has \
806 worked with Stephen Hawking on such topics as relativity, black \
807 holes, and whether time has a beginning, filed a \
808 copyright-infringement lawsuit against the Kimberly-Clark \
809 Corporation, which Penrose said copied a pattern he created (a \
810 pattern demonstrating that ``a nonrepeating pattern could exist in \
811 nature'') for its Kleenex quilted toilet paper. Penrose said he \
812 doesn't like litigation but, ``When it comes to the population of \
813 Great Britain being invited by a multinational to wipe their bottoms \
814 on what appears to be the work of a Knight of the Realm, then a last \
815 stand must be taken.'' \
817 As reported by News of the Weird #491, 4-jul-1997.
819 *hacks.sierpinski.documentation: \
820 This draws the two-dimensional variant of the recursive Sierpinski \
821 triangle fractal. Written by Desmond Daignault.
823 *hacks.braid.documentation: \
824 Draws random color-cycling inter-braided concentric circles. Written \
827 *hacks.galaxy.documentation: \
828 This draws spinning galaxies, which then collide and scatter their \
829 stars to the, uh, four winds or something. Originally an Amiga \
830 program by Uli Siegmund.
832 *hacks.bouboule.documentation: \
833 This draws what looks like a spinning, deforming baloon with \
834 varying-sized spots painted on its invisible surface. Written by \
837 *hacks.swirl.documentation: \
838 More flowing, swirly patterns. This version is by M. Dobie and R. \
839 Taylor, but you might have seen a Mac program similar to this called \
840 FlowFazer. There is also a cool Java applet of a similar concept
842 *hacks.flag.documentation: \
843 This draws a waving colored flag, that undulates its way around the \
844 screen. The trick is the flag can contain arbitrary text and images. \
845 By default, it displays either the current system name and OS \
846 type, or a picture of ``Bob,'' but you can replace the text or the \
847 image with a command-line option. Written by Charles Vidal and Jamie \
850 *hacks.sphere.documentation: \
851 Another of the classic screenhacks of the distant past, this one \
852 draws shaded spheres in multiple colors. This hack traces its \
853 lineage back to Tom Duff in 1982.
855 *hacks.forest.documentation: \
856 This draws fractal trees. Written by Peter Baumung. Everybody loves \
859 *hacks.lisa.documentation: \
860 This draws Lisajous loops, by Caleb Cullen. Remember that device \
861 they had the Phantom Zone prisoners in during their trial in \
862 Superman? I think that was one of these.
864 *hacks.lissie.documentation: \
865 Another Lissajous figure. This one draws the progress of circular \
866 shapes along a path. Written by Alexander Jolk.
868 *hacks.goop.documentation: \
869 This draws set of animating, transparent, amoeba-like blobs. The \
870 blobs change shape as they wander around the screen, and they are \
871 translucent, so you can see the lower blobs through the higher ones, \
872 and when one passes over another, their colors merge. Written by \
873 Jamie Zawinski. I got the idea for this from a cool mouse pad I \
874 have, which achieves the same kind of effect in real life by having \
875 several layers plastic with colored oil between them. Written by \
878 *hacks.starfish.documentation: \
879 This generates a sequence of undulating, throbbing, star-like \
880 patterns which pulsate, rotate, and turn inside out. Another display \
881 mode uses these shapes to lay down a field of colors, which are then \
882 cycled. The motion is very organic. Written by Jamie Zawinski.
884 *hacks.munch.documentation: \n\
891 As reported by HAKMEM, in 1962, Jackson Wright wrote the above PDP-1 \
892 code. That code still lives on in this screenhack, some 35 years \
893 later. The number of lines of enclosing code has increased \
894 substantially, however. This version is by Tim Showalter.
896 *hacks.fadeplot.name: FadePlot
897 *hacks.fadeplot.documentation: \
898 Draws what looks like a waving ribbon following a sinusoidal path. \
899 Written by Bas van Gaalen and Charles Vidal.
901 *hacks.coral.documentation: \
902 Simulates coral growth, albeit somewhat slowly. This image doesn't \
903 really do it justice. Written by Frederick Roeber.
905 *hacks.mountain.documentation: \
906 Generates random 3d plots that look vaguely mountainous. Written by \
909 *hacks.triangle.documentation: \
910 Generates random mountain ranges using iterative subdivision of \
911 triangles. Written by Tobias Gloth.
913 *hacks.worm.documentation: \
914 An ancient xlock hack that draws multicolored worms that crawl around \
915 the screen. Written by Brad Taylor, Dave Lemke, Boris Putanec, and \
918 *hacks.rotor.documentation: \
919 Another ancient xlock demo, this one by Tom Lawrence. It draws a \
920 line segment moving along a complex spiraling curve. I tweaked this \
921 to generate curvier lines, but still frames of it don't look like \
924 *hacks.ant.documentation: \
925 A cellular automaton that is really a two-dimensional Turing machine: \
926 as the heads (``ants'') walk along the screen, they change pixel \
927 values in their path. Then, as they pass over changed pixels, their \
928 behavior is influenced. Written by David Bagley.
930 *hacks.demon.documentation: \
931 A cellular automaton that starts with a random field, and organizes \
932 it into stripes and spirals. Written by David Bagley.
934 *hacks.loop.documentation: \
935 This one produces loop-shaped colonies that spawn, age, and \
936 eventually die. Written by David Bagley.
938 *hacks.vines.documentation: \
939 This one generates a continuous sequence of small, curvy geometric \
940 patterns. It scatters them around your screen until it fills up, \
941 then it clears the screen and starts over. Written by Tracy Camp and \
944 *hacks.kaleidescope.documentation: \
945 Another clone of an ancient meme, consisting largely of frenetic \
946 rotational motion of colored lines. This one is by Ron Tapia. The \
947 motion is nice, but I think it needs more solids, or perhaps just \
948 brighter colors. More variations in the rotational speed might help, \
951 *hacks.xjack.documentation: \
952 This program behaves schizophrenically and makes a lot of typos. \
953 Written by Jamie Zawinski. If you haven't seen Stanley Kubrick's \
954 masterpiece, ``The Shining,'' you won't get it. Those who have \
955 describe this hack as ``inspired.''
957 *hacks.xlyap.documentation: \
958 This generates pretty fractal pictures by doing funky math involving \
959 the ``Lyapunov exponent.'' It has a cool interactive mode, too. \
960 Written by Ron Record.
962 *hacks.cynosure.documentation: \
963 A hack similar to `greynetic', but less frenetic. The first \
964 implementation was by Stephen Linhart; then Ozymandias G. Desiderata \
965 wrote a Java applet clone. That clone was discovered by Jamie \
966 Zawinski, and ported to C for inclusion here.
968 *hacks.flow.documentation: \
969 Another series of strange attractors: a flowing series of points, \
970 making strange rotational shapes. Written by Jeff Butterworth.
972 *hacks.epicycle.documentation: \
973 This program draws the path traced out by a point on the edge of a \
974 circle. That circle rotates around a point on the rim of another \
975 circle, and so on, several times. These were the basis for the \
976 pre-heliocentric model of planetary motion. Written by James \
979 *hacks.interference.documentation: \
980 Another color-field hack, this one works by computing decaying \
981 sinusoidal waves, and allowing them to interfere with each other as \
982 their origins move. Written by Hannu Mallat.
984 *hacks.truchet.documentation: \
985 This draws line- and arc-based Truchet patterns that tile the screen. \
986 Written by Adrian Likins.
988 *hacks.bsod.name: BSOD
989 *hacks.bsod.documentation: \
990 BSOD stands for ``Blue Screen of Death.'' The finest in personal \
991 computer emulation, this hack simulates popular screen savers from a \
992 number of less robust operating systems. Written by Jamie Zawinski.
994 *hacks.crystal.documentation: \
995 Moving polygons, similar to a kaleidescope (more like a kaleidescope \
996 than the hack called `kaleid,' actually.) This one by Jouk Jansen.
998 *hacks.discrete.documentation: \
999 More ``discrete map'' systems, including new variants of Hopalong and \
1000 Julia, and a few others. Written by Tim Auckland.
1002 *hacks.kumppa.documentation: \
1003 Spiraling, spinning, and very, very fast splashes of color rush \
1004 toward the screen. Written by Teemu Suutari.
1006 *hacks.rd-bomb.name: RD-Bomb
1007 *hacks.rd-bomb.documentation: \
1008 Another variation of the `Bomb' program by Scott Draves. This draws \
1009 a grid of growing square-like shapes that, once they overtake each \
1010 other, react in unpredictable ways. ``RD'' stands for \
1013 *hacks.sonar.documentation: \
1014 This program draws a simulation of a sonar screen. Written by \
1015 default, it displays a random assortment of ``bogies'' on the screen, \
1016 but if compiled properly, it can ping (pun intended) your local \
1017 network, and actually plot the proximity of the other hosts on your \
1018 network to you. It would be easy to make it monitor other sources of \
1019 data, too. (Processes? Active network connections? CPU usage per \
1020 user?) Written by Stephen Martin.
1022 *hacks.t3d.name: T3D
1023 *hacks.t3d.documentation: \
1024 This draws a working analog clock composed of floating, throbbing \
1025 bubbles. Written by Bernd Paysan.
1027 *hacks.penetrate.documentation: \
1028 This hack simulates the classic arcade game Missile Command. Written \
1031 *hacks.deluxe.documentation: \
1032 This draws a pulsing sequence of stars, circles, and lines. It would \
1033 look better if it was faster, but as far as I can tell, there is no \
1034 way to make this be both: fast, and flicker-free. Yet another reason \
1035 X sucks. Written by Jamie Zawinski.
1037 *hacks.compass.documentation: \
1038 This draws a compass, with all elements spinning about randomly, for \
1039 that ``lost and nauseous'' feeling. Written by Jamie Zawinski.
1041 *hacks.squiral.documentation: \
1042 Draws a set of interacting, square-spiral-producing automata. The \
1043 spirals grow outward until they hit something, then they go around \
1044 it. Written by Jeff Epler.
1046 *hacks.xflame.documentation: \
1047 Draws a simulation of pulsing fire. It can also take an arbitrary \
1048 image and set it on fire too. Written by Carsten Haitzler, hacked on \
1051 *hacks.wander.documentation: \
1052 Draws a colorful random-walk, in various forms. Written by Rick \
1055 *hacks.critical.documentation: \
1056 Draws a system of self-organizing lines. It starts out as random \
1057 squiggles, but after a few iterations, order begins to appear. \
1058 Written by Martin Pool.
1060 *hacks.phosphor.documentation: \
1061 Draws a simulation of an old terminal, with large pixels and \
1062 long-sustain phosphor. It can run any program as a source of the text \
1063 it displays. Written by Jamie Zawinski.
1065 *hacks.xmatrix.documentation: \
1066 A rendition of the text scrolls seen in the movie ``The Matrix.'' \
1067 Written by Jamie Zawinski.
1069 *hacks.petri.documentation: \
1070 This simulates colonies of mold growing in a petri dish. Growing \
1071 colored circles overlap and leave spiral interference in their wake. \
1072 Written by Dan Bornstein.
1074 *hacks.shadebobs.name: ShadeBobs
1075 *hacks.shadebobs.documentation: \
1076 This draws smoothly-shaded oscilating oval patterns, that look \
1077 something like vapor trails or neon tubes. Written by Shane Smit.
1079 *hacks.ccurve.name: C Curve
1080 *hacks.ccurve.documentation: \
1081 Generates self-similar linear fractals, including the classic ``C \
1082 Curve.'' Written by Rick Campbell.
1084 *hacks.blaster.documentation: \
1085 Draws a simulation of flying space-combat robots (cleverly disguised \
1086 as colored circles) doing battle in front of a moving star field. \
1087 Written by Jonathan Lin.
1089 *hacks.bumps.documentation: \
1090 A bit like `Spotlight', except that instead of merely exposing part \
1091 of your desktop, it creates a bump map from it. Basically, it \
1092 3D-izes a roaming section of your desktop, based on color intensity. \
1093 Written by Shane Smit.
1095 *hacks.xteevee.name: XTeeVee
1096 *hacks.xteevee.documentation: \
1097 XTeeVee simulates various television problems, including static, \
1098 loss of vertical hold, and a test pattern. By Greg Knauss.
1100 *hacks.xspirograph.name: XSpiroGraph
1101 *hacks.xspirograph.documentation: \
1102 Simulates that pen-in-nested-plastic-gears toy from your childhood. \
1105 *hacks.nerverot.name: NerveRot
1106 *hacks.nerverot.documentation: \
1107 Draws different shapes composed of nervously vibrating squiggles, \
1108 as if seen through a camera operated by a monkey on crack. \
1111 *hacks.webcollage.name: WebCollage
1112 *hacks.webcollage.documentation: \
1113 This program makes collages out of random images pulled off of the \
1114 World Wide Web. It finds these images by doing random web searches, \
1115 and then extracting images from the returned pages. It can also be \
1116 set up to filter the images through the `VidWhacker' program, above, \
1117 which looks really great. \
1119 (Note that most of the images it finds are text, and not pictures. \
1120 This is because most of the web is pictures of text. Which is pretty \
1121 sad.) Written by Jamie Zawinski.
1123 *hacks.vidwhacker.name: VidWhacker
1124 *hacks.vidwhacker.documentation: \
1125 This is actually just a shell script that grabs a frame of video from \
1126 the system's video input, and then uses some PBM filters (chosen at \
1127 random) to manipulate and recombine the video frame in various ways \
1128 (edge detection, subtracting the image from a rotated version of \
1129 itself, etc.) Then it displays that image for a few seconds, and \
1130 does it again. This works really well if you just feed broadcast \
1131 television into it. \
1133 Currently, the three lines of the script that actually grab the \
1134 source picture are SGI specific, but it should be trivial to adapt it \
1135 to work on other systems that can grab video (please send me the \
1136 changes if you do this...)
1138 *hacks.rocks.documentation: \
1139 This draws an animation of flight through an asteroid field, with \
1140 changes in rotation and direction. It can also display 3D \
1141 separations for red/blue glasses! Mostly written by Jamie Zawinski.
1143 *hacks.bubbles.documentation: \
1144 This simulates the kind of bubble formation that happens when water \
1145 boils:small bubbles appear, and as they get closer to each other, \
1146 they combine to form larger bubbles, which eventually pop. Written \
1149 *hacks.gears.documentation: \
1150 This draws sets of turning, interlocking gears, rotating in three \
1151 dimensions. Another GL hack, by Danny Sung, Brian Paul, Ed Mackey, \
1154 *hacks.superquadrics.documentation: \
1155 Ed Mackey reports that he wrote the first version of this program in \
1156 BASIC on a Commodore 64 in 1987, as a 320x200 black and white \
1157 wireframe. Now it is GL and has specular reflections.
1159 *hacks.morph3d.name: Morph3D
1160 *hacks.morph3d.documentation: \
1161 Another 3d shape-changing GL hack, by Marcelo Vianna. It has the \
1162 same shiny-plastic feel as Superquadrics, as many computer-generated \
1165 *hacks.cage.documentation: \
1166 This draws Escher's ``Impossible Cage,'' a 3d analog of a moebius \
1167 strip, and rotates it in three dimensions. Written by Marcelo \
1170 *hacks.moebius.documentation: \
1171 Another M. C. Escher hack by Marcelo Vianna, this one draws \
1172 ``Moebius Strip II,'' a GL image of ants walking along the surface of \
1175 *hacks.stairs.documentation: \
1176 by Marcelo Vianna's third Escher GL hack, this one draws an \
1177 ``infinite'' staircase.
1179 *hacks.pipes.documentation: \
1180 If you've ever been in the same room with a Windows NT machine, \
1181 you've probably seen this GL hack. This version is by Marcelo \
1184 *hacks.sproingies.documentation: \
1185 Q-Bert meets Marble Madness! Written by Ed Mackey.
1187 *hacks.rubik.documentation: \
1188 Draws a Rubik's Cube that rotates in three dimensions and repeatedly \
1189 shuffles and solves itself. Another fine GL hack by Marcelo Vianna.
1191 *hacks.atlantis.documentation: \
1192 This is xfishtank writ large: a GL animation of a number of sharks, \
1193 dolphins, and whales. The swimming motions are great. Originally \
1194 written by Mark Kilgard.
1196 *hacks.lament.documentation: \
1197 Animates a simulation of Lemarchand's Box, repeatedly solving itself. \
1198 Requires OpenGL, and a machine with fast hardware support for texture \
1199 maps. Warning: occasionally opens doors. Written by Jamie Zawinski.
1201 *hacks.bubble3d.name: Bubble3D
1202 *hacks.bubble3d.documentation: \
1203 Draws a stream of rising, undulating 3D bubbles, rising toward the \
1204 top of the screen, with nice specular reflections. Written by Richard \
1207 *hacks.glplanet.name: GLPlanet
1208 *hacks.glplanet.documentation: \
1209 Draws a planet bouncing around in space. Written by David Konerding. \
1210 The built-in image is a map of the earth (extracted from `xearth'), \
1211 but you can wrap any texture around the sphere, e.g., the planetary \
1212 textures that come with `ssystem'.
1214 *hacks.pulsar.documentation: \
1215 Draws some intersecting planes, making use of alpha blending, fog, \
1216 textures, and mipmaps, plus a ``frames per second'' meter so that you \
1217 can tell how fast your graphics card is... Requires OpenGL. Written \
1220 *hacks.extrusion.documentation: \
1221 Draws various rotating extruded shapes that twist around, lengthen, \
1222 and turn inside out. Created by David Konerding from the samples \
1223 that come with the GL Extrusion library by Linas Vepstas.
1225 *hacks.sierpinski3d.name: Sierpinski3D
1226 *hacks.sierpinski3d.documentation: \
1227 This draws the three-dimensional variant of the recursive Sierpinski \
1228 triangle fractal, using GL. Written by Tim Robinson and Jamie Zawinski.
1230 *hacks.ripples.documentation: \
1231 This draws rippling interference patterns like splashing water. \
1232 With the -water option, it manipulates your desktop image to look \
1233 like something is dripping into it. Written by Tom Hammersley.
1235 *hacks.gflux.name: GFlux
1236 *hacks.gflux.documentation: \
1237 Draws a rippling waves on a rotating wireframe grid, using GL. \
1238 Written by Josiah Pease.
1240 *hacks.xrayswarm.name: XRaySwarm
1241 *hacks.xrayswarm.documentation: \
1242 Draws a few swarms of critters flying around the screen, with nicely \
1243 faded color trails behind them. Written by Chris Leger.
1245 *hacks.zoom.documentation: \
1246 Zooms in on a part of the screen and then moves around. With the \
1247 -lenses option the result is like looking through many overlapping \
1248 lenses rather than just a simple zoom. Written by James Macnicol.
1250 *hacks.whirlwindwarp.name: WhirlwindWarp
1251 *hacks.whirlwindwarp.documentation: \
1252 Floating stars are acted upon by a mixture of simple 2D \
1253 forcefields. The strength of each forcefield changes \
1254 continuously, and it is also switched on and off at random. \
1255 By Paul 'Joey' Clark.
1257 *hacks.rotzoomer.name: RotZoomer
1258 *hacks.rotzoomer.documentation: \
1259 Creates a collage of rotated and scaled portions of the \
1260 screen. Written by Claudio Matsuoka.
1262 *hacks.stonerview.name: StonerView
1263 *hacks.stonerview.documentation: \
1264 Chains of colorful squares dance around each other in complex spiral \
1265 patterns. Written by Andrew Plotkin, based on SGI's `electropaint' \
1268 *hacks.starwars.name: StarWars
1269 *hacks.starwars.documentation: \
1270 Draws a stream of text slowly scrolling into the distance at an \
1271 angle, over a star field, like at the beginning of the movie of the \
1272 same name. Written by Jamie Zawinski and Claudio Matauoka.
1274 *hacks.gltext.name: GLText
1275 *hacks.gltext.documentation: \
1276 Displays a few lines of text spinning around in a solid 3D font. \
1277 Written by Jamie Zawinski.
1279 *hacks.molecule.documentation: \
1280 Draws several different representations of molecules. Some common \
1281 molecules are built in, and it can also read PDB (Protein Data Base) \
1282 files as input. Written by Jamie Zawinski.
1284 *hacks.dangerball.name: DangerBall
1285 *hacks.dangerball.documentation: \
1286 Draws a ball that periodically extrudes many random spikes. Ouch! \
1287 Written by Jamie Zawinski.
1290 !=============================================================================
1292 ! Documentation for some programs that are not bundled with XScreenSaver
1294 !=============================================================================
1296 *hacks.xdaliclock.name: XDaliClock
1297 *hacks.xdaliclock.documentation: \
1298 XDaliClock draws a large digital clock, the numbers of which change by \
1299 ``melting'' into their new shapes. Written by Jamie Zawinski. This \
1300 is not included with the XScreenSaver package, but if you don't have \
1301 it already, you can find it at <http://www.jwz.org/xdaliclock/>.
1303 *hacks.xearth.documentation: \
1304 XEarth draws an image of the Earth, as seen from your favorite vantage \
1305 point in space, correctly shaded for the current position of the Sun. \
1306 Written by Kirk Johnson. This is not included with the XScreenSaver \
1307 package, but if you don't have it already, you can find it at \
1308 <http://www.cs.colorado.edu/~tuna/xearth/>.
1310 *hacks.ssystem.name: SSystem
1311 *hacks.ssystem.documentation: \
1312 SSystem is a GL Solar System simulator. It simulates flybys of Sun, \
1313 the nine planets and a few major satellites, with four camera modes. \
1314 Written by Raul Alonso. This is not included with the XScreenSaver \
1315 package, but if you don't have it already, you can find it at \
1316 <http://www1.las.es/~amil/ssystem/>.
1318 *hacks.xmountains.documentation: \
1319 XMountains generates realistic-looking fractal terrains of snow-capped \
1320 mountains near water, with either a top view or a side view. \
1321 Written by Stephen Booth. This is not included with the XScreenSaver \
1322 package, but if you don't have it already, you can find it at \
1323 <http://www.epcc.ed.ac.uk/~spb/xmountains/>. \
1325 Be sure to compile it with -DVROOT or it won't work right when launched \
1326 by the xscreensaver daemon.
1328 *hacks.xaos.name: XaoS
1329 *hacks.xaos.documentation: \
1330 XaoS generates fast fly-through animations of the Mandelbrot and other \
1331 fractal sets. Written by Thomas Marsh and Jan Hubicka. This is not \
1332 included with the XScreenSaver package, but if you don't have it \
1333 already, you can find it at <http://limax.paru.cas.cz/~hubicka/XaoS/>.
1335 *hacks.xfishtank.name: XFishTank
1336 *hacks.xfishtank.documentation: \
1337 Fish! This is not included with the XScreenSaver package, but if you \
1338 don't have it already, you can find it at \
1339 <http://metalab.unc.edu/pub/Linux/X11/demos/>.
1341 *hacks.xsnow.documentation: \
1342 Draws falling snow and the occasional tiny Santa. By Rick Jansen. \
1343 You can find it at <http://www.euronet.nl/~rja/Xsnow/>.
1345 *hacks.goban.documentation: \
1346 Replays historical games of go (aka wei-chi and baduk) on the screen. \
1347 By Scott Draves. You can find it at <http://www.draves.org/goban/>.
1349 *hacks.electricsheep.name: ElectricSheep
1350 *hacks.electricsheep.documentation: \
1351 ElectricSheep is an xscreensaver module that displays mpeg video of \
1352 an animated fractal flame. In the background, it contributes render \
1353 cycles to the next animation. Periodically it uploades completed \
1354 frames to the server, where they are compressed for distribution to \
1357 This program is recommended only if you have a high bandwidth \
1358 connection to the Internet. \
1360 By Scott Draves. You can find it at <http://www.electricsheep.org/>. \
1361 See that web site for configuration information.
1363 *hacks.cosmos.documentation: \
1364 Draws fireworks and zooming, fading flares. By Tom Campbell. \
1365 You can find it at <http://www.mindspring.com/~campbell/cosmos/>.
1367 ! (xrdb prevention kludge: whole file) */