1 "#error Do not run app-defaults files through xrdb!",
2 "#error That does not do what you might expect.",
3 "#error Put this file in /usr/lib/X11/app-defaults/XScreenSaver instead.",
20 "*captureStderr: True",
21 "*overlayTextForeground: #FFFF00",
22 "*overlayTextBackground: #000000",
23 "*overlayStderr: True",
24 "*font: *-medium-r-*-140-*-m-*",
25 "*sgiSaverExtension: True",
26 "*mitSaverExtension: False",
27 "*xidleExtension: True",
28 "*procInterrupts: True",
29 "*demoCommand: xscreensaver-demo",
30 "*prefsCommand: xscreensaver-demo -prefs",
31 "*helpURL: http://www.jwz.org/xscreensaver/man.html",
32 "*loadURL: netscape -remote 'openURL(%s)' || netscape '%s'",
33 "*manualCommand: xterm +sb -fg black -bg gray75 -T '%s manual' \
34 -e /bin/sh -c 'man \"%s\" || read foo'",
35 "*dateFormat: %d-%b-%y (%a); %I:%M %p",
36 "*installColormap: True",
38 \"Qix (solid)\" qix -root -solid -delay 0 -segments 100 \\n\
39 \"Qix (transparent)\" qix -root -count 4 -solid -transparent \\n\
40 \"Qix (linear)\" qix -root -count 5 -solid -transparent \
41 -linear -segments 250 -size 100 \\n\
42 - mono: \"Qix (xor)\" qix -root -linear -count 5 -size 200 \
43 -spread 30 -segments 75 -solid -xor \\n\
45 \"Attraction (balls)\" attraction -root -mode balls \\n\
46 \"Attraction (lines)\" attraction -root -mode lines -points 3 \
48 - \"Attraction (poly)\" attraction -root -mode polygons \\n\
49 \"Attraction (splines)\" attraction -root -mode splines -segments \
51 \"Attraction (orbital)\" attraction -root -mode lines -radius 300 \
52 -orbit -vmult 0.5 \\n\
58 rorschach -root -offset 7 \\n\
62 slidescreen -root \\n\
63 decayscreen -root \\n\
65 blitspin -root -grab \\n\
69 \"Ripples (oily)\" ripples -root -oily -light 2 \\n\
70 \"Ripples (stir)\" ripples -root -oily -light 2 -stir \\n\
71 \"Ripples (desktop)\" ripples -root -water -light 6 \\n\
87 \"Grav (trails)\" grav -root -trail -decay \\n\
102 goop -root -max-velocity 0.5 -elasticity \
105 \"Starfish (blob)\" starfish -root -blob \\n\
108 coral -root -delay 0 \\n\
110 triangle -root -delay 1 \\n\
117 kaleidescope -root \\n\
119 xlyap -root -randomize \\n\
123 interference -root \\n\
124 truchet -root -randomize \\n\
130 \"RD-Bomb (mobile)\" rd-bomb -root -speed 1 -size 0.1 \\n\
139 \"Wander (spots)\" wander -root -advance 0 -size 10 -circles \
140 True -length 10000 -reset 100000 \\n\
144 petri -root -size 2 -count 20 \\n\
145 \"Petri 2\" petri -root -minlifespeed 0.02 \
146 -maxlifespeed 0.03 -minlifespan 1 \
147 -maxlifespan 1 -instantdeathchan 0 \
148 -minorchan 0 -anychan 0.3 \\n\
154 xspirograph -root \\n\
156 - \"NerveRot (dense)\" nerverot -root -count 1000 \\n\
157 - \"NerveRot (thick)\" nerverot -root -count 100 -line-width 4 \
158 -max-nerve-radius 0.8 -nervousness 0.5 -db \\n\
160 - \"Zoom (Fatbits)\" zoom -root \\n\
161 \"Zoom (Lenses)\" zoom -root -lenses \\n\
162 whirlwindwarp -root \\n\
163 color: bubbles -root \\n\
164 default-n: webcollage -root \\n\
165 default-n: \"WebCollage (whacked)\" \
166 webcollage -root -filter \
167 'vidwhacker -stdin -stdout' \\n\
168 - default-n: vidwhacker -root \\n\
171 GL: \"Gears (planetary)\" gears -root -planetary \\n\
172 GL: superquadrics -root \\n\
173 GL: morph3d -root \\n\
175 GL: moebius -root \\n\
176 GL: stairs -root \\n\
178 GL: sproingies -root \\n\
180 GL: atlantis -root \\n\
181 GL: lament -root \\n\
182 GL: bubble3d -root \\n\
183 GL: glplanet -root \\n\
184 GL: pulsar -root \\n\
185 - GL: \"Pulsar (textures)\" \
186 pulsar -root -texture -mipmap \
187 -texture_quality -light -fog \\n\
188 GL: extrusion -root \\n\
189 GL: sierpinski3d -root \\n\
191 GL: stonerview -root \\n\
192 GL: starwars -root \\n\
193 GL: gltext -root \\n\
195 - xdaliclock -root -builtin3 -cycle \\n\
196 - default-n: xearth -nofork -nostars -ncolors 50 \
197 -night 3 -wait 0 -timewarp 400.0 -pos \
199 - ssystem -fullscreen :32 \\n\
200 - xmountains -b -M -Z 0 -r 1 \\n\
201 - \"XMountains (top)\" xmountains -b -M -Z 0 -r 1 -m \\n\
202 - xaos -root -autopilot -incoloring -1 \
203 -nogui -outcoloring -1 \\n\
204 - xfishtank -d -s \\n\
209 "XScreenSaver.pointerPollTime: 5",
210 "XScreenSaver.initialDelay: 0",
211 "XScreenSaver.windowCreationTimeout: 30",
212 "XScreenSaver.bourneShell: /bin/sh",
213 "*Dialog.headingFont: *-times-bold-r-*-*-*-180-*-*-*-iso8859-1",
214 "*Dialog.bodyFont: *-helvetica-bold-r-*-*-*-140-*-*-*-iso8859-1",
215 "*Dialog.labelFont: *-helvetica-bold-r-*-*-*-140-*-*-*-iso8859-1",
216 "*Dialog.buttonFont: *-helvetica-bold-r-*-*-*-140-*-*-*-iso8859-1",
217 "*Dialog.dateFont: *-courier-medium-r-*-*-*-80-*-*-*-iso8859-1",
218 "*Dialog.foreground: #000000",
219 "*Dialog.background: #BFBFBF",
220 "*Dialog.Button.foreground: #000000",
221 "*Dialog.Button.background: #D0D0D0",
222 "*Dialog.text.foreground: #000000",
223 "*Dialog.text.background: #FFFFFF",
224 "*passwd.thermometer.foreground: #FF0000",
225 "*passwd.thermometer.background: #FFFFFF",
226 "*Dialog.topShadowColor: #E7E7E7",
227 "*Dialog.bottomShadowColor: #737373",
228 "*Dialog.logo.width: 210",
229 "*Dialog.logo.height: 210",
230 "*Dialog.internalBorderWidth: 30",
231 "*Dialog.borderWidth: 1",
232 "*Dialog.shadowThickness: 4",
233 "*passwd.heading.label: XScreenSaver %s",
234 "*passwd.body.label: This display is locked.",
235 "*passwd.user.label: User:",
236 "*passwd.passwd.label: Password:",
237 "*passwd.passwdFont: *-courier-medium-r-*-*-*-140-*-*-*-iso8859-1",
238 "*passwd.thermometer.width: 8",
239 "*splash.heading.label: XScreenSaver %s",
240 "*splash.body.label: Copyright © 1991-2001 by",
241 "*splash.body2.label: Jamie Zawinski <jwz@jwz.org>",
242 "*splash.demo.label: Demo",
243 "*splash.prefs.label: Prefs",
244 "*splash.help.label: Help",
245 "*fontList: *-helvetica-medium-r-*-*-*-120-*-*-*-iso8859-1",
246 "*demoDialog*label1.fontList: *-helvetica-medium-r-*-*-*-140-*-*-*-iso8859-1",
247 "*cmdText.fontList: *-courier-medium-r-*-*-*-120-*-*-*-iso8859-1",
248 "*label0.fontList: *-helvetica-bold-r-*-*-*-140-*-*-*-iso8859-1",
249 "XScreenSaver*doc.fontList: *-helvetica-medium-r-*-*-*-100-*-*-*-iso8859-1",
250 "*foreground: #000000",
251 "*background: #C0C0C0",
252 "*XmTextField.foreground: #000000",
253 "*XmTextField.background: #FFFFFF",
254 "*list.foreground: #000000",
255 "*list.background: #FFFFFF",
256 "*ApplicationShell.title: XScreenSaver",
257 "*warning.title: XScreenSaver",
258 "*warning_popup.title: XScreenSaver",
259 "*allowShellResize: True",
260 "*autoUnmanage: False",
261 "*menubar*file.labelString: File",
262 "*menubar*file.mnemonic: F",
263 "*file.blank.labelString: Blank Screen Now",
264 "*file.blank.mnemonic: B",
265 "*file.lock.labelString: Lock Screen Now",
266 "*file.lock.mnemonic: L",
267 "*file.kill.labelString: Kill Daemon",
268 "*file.kill.mnemonic: K",
269 "*file.restart.labelString: Restart Daemon",
270 "*file.restart.mnemonic: R",
271 "*file.exit.labelString: Exit",
272 "*file.exit.mnemonic: E",
273 "*menubar*edit.labelString: Edit",
274 "*menubar*edit.mnemonic: E",
275 "*edit.cut.labelString: Cut",
276 "*edit.cut.mnemonic: u",
277 "*edit.copy.labelString: Copy",
278 "*edit.copy.mnemonic: C",
279 "*edit.paste.labelString: Paste",
280 "*edit.paste.mnemonic: P",
281 "*menubar*help.labelString: Help",
282 "*menubar*help.mnemonic: H",
283 "*help.about.labelString: About...",
284 "*help.about.mnemonic: A",
285 "*help.docMenu.labelString: Documentation...",
286 "*help.docMenu.mnemonic: D",
287 "*demoTab.marginWidth: 10",
288 "*optionsTab.marginWidth: 10",
289 "*XmScrolledWindow.topOffset: 10",
290 "*XmScrolledWindow.leftOffset: 10",
291 "*demoTab.topOffset: 4",
292 "*form1.bottomOffset: 10",
293 "*form3.leftOffset: 10",
294 "*form3.rightOffset: 10",
295 "*frame.topOffset: 10",
296 "*frame.bottomOffset: 10",
297 "*enabled.topOffset: 10",
298 "*visLabel.topOffset: 10",
299 "*combo.topOffset: 10",
300 "*form4.bottomOffset: 4",
301 "*hr.bottomOffset: 4",
302 "*XmComboBox.marginWidth: 0",
303 "*XmComboBox.marginHeight: 0",
304 "*demo.marginWidth: 30",
305 "*demo.marginHeight: 4",
306 "*man.marginWidth: 10",
307 "*man.marginHeight: 4",
308 "*down.leftOffset: 40",
309 "*down.marginWidth: 4",
310 "*down.marginHeight: 4",
311 "*up.marginWidth: 4",
312 "*up.marginHeight: 4",
313 "*frame.traversalOn: False",
314 "*list.automaticSelection: True",
315 "*list.visibleItemCount: 20",
317 "*combo.columns: 11",
318 "*demoTab.labelString: Graphics Demos",
319 "*optionsTab.labelString: Screensaver Options",
320 "*down.labelString: \\\\/ ",
321 "*up.labelString: /\\\\ ",
322 "*frameLabel.labelString: ",
323 "*cmdLabel.labelString: Command Line:",
324 "*cmdLabel.alignment: ALIGNMENT_BEGINNING",
325 "*enabled.labelString: Enabled",
326 "*visLabel.labelString: Visual:",
327 "*visLabel.alignment: ALIGNMENT_END",
328 "*visLabel.leftOffset: 20",
329 "*demo.labelString: Demo",
330 "*man.labelString: Documentation...",
331 "*done.labelString: Quit",
332 "*preferencesLabel.labelString: XScreenSaver Parameters",
333 "*timeoutLabel.labelString: Saver Timeout",
334 "*cycleLabel.labelString: Cycle Timeout",
335 "*fadeSecondsLabel.labelString: Fade Duration",
336 "*fadeTicksLabel.labelString: Fade Ticks",
337 "*lockLabel.labelString: Lock Timeout",
338 "*passwdLabel.labelString: Password Timeout",
339 "*preferencesForm*XmTextField.columns: 8",
340 "*verboseToggle.labelString: Verbose",
341 "*cmapToggle.labelString: Install Colormap",
342 "*fadeToggle.labelString: Fade Colormap",
343 "*unfadeToggle.labelString: Unfade Colormap",
344 "*lockToggle.labelString: Require Password",
345 "*OK.marginWidth: 30",
346 "*OK.marginHeight: 4",
347 "*OK.leftOffset: 10",
348 "*OK.bottomOffset: 10",
349 "*Cancel.marginWidth: 30",
350 "*Cancel.marginHeight: 4",
351 "*Cancel.rightOffset: 10",
352 "*Cancel.bottomOffset: 10",
353 "*hacks.documentation.isInstalled: True",
354 "*hacks.qix.documentation: \
355 This is the swiss army chainsaw of qix programs. It bounces a series \
356 of line segments around the screen, and uses variations on this basic \
357 motion pattern to produce all sorts of different presentations: line \
358 segments, filled polygons, overlapping translucent areas... Written \
360 "*hacks.attraction.documentation: \
361 Like qix, this uses a simple simple motion model to generate many \
362 different display modes. The control points attract each other up to \
363 a certain distance, and then begin to repel each other. The \
364 attraction/repulsion is proportional to the distance between any two \
365 particles, similar to the strong and weak nuclear forces. \
367 One of the most interesting ways to watch this hack is simply as \
368 bouncing balls, because their motions and interactions with each \
369 other are so odd. Sometimes two balls will get into a tight orbit \
370 around each other, to be interrupted later by a third, or by the edge \
371 of the screen. It looks quite chaotic. \
373 Written by Jamie Zawinski, based on Lisp code by John Pezaris.",
374 "*hacks.pyro.documentation: \
375 Pyro draws exploding fireworks. Blah blah blah. Written by Jamie \
377 "*hacks.helix.documentation: \
378 This repeatedly generates spirally string-art-ish patterns. Written \
380 "*hacks.pedal.documentation: \
381 This is sort of a combination spirograph/string-art. It generates a \
382 large, complex polygon, and lets the X server do the bulk of the work \
383 by giving it an even/odd winding rule. Written by Dale Moore, based \
384 on some ancient PDP-11 code.",
385 "*hacks.rorschach.documentation: \
386 This generates random inkblot patterns. The algorithm is deceptively \
387 simple for how well it works; it merely walks a dot around the screen \
388 randomly, and then reflects the image horizontally, vertically, or \
389 both. Any deep-seated neurotic tendencies which this program reveals \
390 are your own problem. Written by Jamie Zawinski.",
391 "*hacks.hopalong.documentation: \
392 This draws lacy fractal patterns, based on iteration in the imaginary \
393 plane, from a 1986 Scientific American article. Mostly written by \
395 "*hacks.greynetic.documentation: \
396 This draws random colored and stippled rectangles. Written by Jamie \
398 "*hacks.imsmap.name: IMSmap",
399 "*hacks.imsmap.documentation: \
400 This generates random cloud-like patterns. It looks quite different \
401 in monochrome and color. The basic idea is to take four points on \
402 the edge of the image, and assign each a random ``elevation''. Then \
403 find the point between them, and give it a value which is the average \
404 of the other four, plus some small random offset. Then coloration is \
405 done based on elevation. \
407 The color selection is done by binding the elevation to either hue, \
408 saturation, or brightness, and assigning random values to the others. \
409 The ``brightness'' mode tends to yield cloudlike patterns, and the \
410 others tend to generate images that look like heat-maps or CAT-scans. \
411 Written by Juergen Nickelsen and Jamie Zawinski.",
412 "*hacks.slidescreen.name: SlideScreen",
413 "*hacks.slidescreen.documentation: \
414 This grabs an image of whatever is on your screen, divides it into a \
415 grid, and then randomly shuffles the squares around as if it was one \
416 of those annoying ``16-puzzle'' games, where there is a grid of \
417 squares, one of which is missing. I hate trying to solve those \
418 puzzles, but watching one permute itself is more amusing. Written by \
420 "*hacks.decayscreen.name: DecayScreen",
421 "*hacks.decayscreen.documentation: \
422 This grabs an image of whatever is on your screen, and makes it melt. \
423 You've no doubt seen this effect before, but no screensaver would \
424 really be complete without it. It works best if there's something \
425 colorful visible. Warning, if the effect continues after the screen \
426 saver is off, seek medical attention. Written by David Wald and \
429 A number of these screenhacks have the ability to take an image of \
430 your desktop and manipulate it in some way. On SGI systems, these \
431 programs are able to (at random) pull their source image from the \
432 system's video input instead! This works nicely if you leave some \
433 some random television station plugged in.",
434 "*hacks.jigsaw.documentation: \
435 This grabs a screen image, carves it up into a jigsaw puzzle, \
436 shuffles it, and then solves the puzzle. This works especially well \
437 when you feed it an external video signal instead of letting it grab \
438 the screen image (actually, I guess this is generally true...) When \
439 it is grabbing a video image, it is sometimes pretty hard to guess \
440 what the image is going to look like once the puzzle is solved. \
441 Written by Jamie Zawinski.",
442 "*hacks.blitspin.name: BlitSpin",
443 "*hacks.blitspin.documentation: \
444 The ``blitspin'' hack repeatedly rotates a bitmap by 90 degrees by \
445 using logical operations: the bitmap is divided into quadrants, and \
446 the quadrants are shifted clockwise. Then the same thing is done \
447 again with progressively smaller quadrants, except that all \
448 sub-quadrants of a given size are rotated in parallel. Written by \
449 Jamie Zawinski based on some cool SmallTalk code seen in in Byte \
452 As you watch it, the image appears to dissolve into static and then \
453 reconstitute itself, but rotated. You can provide the image to use, \
454 as an XBM or XPM file, or tell it to grab a screen image and rotate \
456 "*hacks.slip.documentation: \
457 This program throws some random bits on the screen, then sucks them \
458 through a jet engine and spews them out the other side. To avoid \
459 turning the image completely to mush, every now and then it will and \
460 then it interjects some splashes of color into the scene, or go into \
461 a spin cycle, or stretch the image like taffy, or (this is my \
462 addition) grab an image of your current desktop to chew on. \
463 Originally written by Scott Draves; whacked on by Jamie Zawinski.",
464 "*hacks.distort.documentation: \
465 This hack grabs an image of the screen, and then lets a transparent \
466 lens wander around the screen, magnifying whatever is underneath. \
467 Written by Jonas Munsin.",
468 "*hacks.spotlight.documentation: \
469 Draws a spotlight scanning across a black screen, illumnating the \
470 underlying desktop when it passes. Written by Rick Schultz.",
471 "*hacks.hypercube.documentation: \
472 This displays 2D projections of the sequence of 3D objects which are \
473 the projections of the 4D analog to the cube: as a square is composed \
474 of four lines, each touching two others; and a cube is composed of \
475 six squares, each touching four others; a hypercube is composed of \
476 eight cubes, each touching six others. To make it easier to \
477 visualize the rotation, it uses a different color for the edges of \
478 each face. Don't think about it too long, or your brain will melt. \
479 Written by Joe Keane, Fritz Mueller, and Jamie Zawinski.",
480 "*hacks.hyperball.documentation: \
481 Hyperball is to hypercube as dodecahedron is to cube: this displays \
482 a 2D projection of the sequence of 3D objects which are the projections \
483 of the 4D analog to the dodecahedron. Written by Joe Keane.",
484 "*hacks.halo.documentation: \
485 This draws trippy psychedelic circular patterns that hurt to look at. \
486 It can also animate the control-points, but that takes a lot of CPU \
487 and bandwidth. Written by Jamie Zawinski.",
488 "*hacks.maze.documentation: \
489 This is the ancient X maze demo, modified to work with xscreensaver. \
490 It generates a random maze, then solves it with visual feedback. \
491 Originally by Jim Randell; modified by a cast of thousands.",
492 "*hacks.noseguy.documentation: \
493 A little man with a big nose wanders around your screen saying \
494 things. The things which he says can come from a file, or from an \
495 external program like `zippy' or `fortune'. This was extracted from \
496 `xnlock' by Dan Heller. Colorized by Jamie Zawinski.",
497 "*hacks.flame.documentation: \
498 Another iterative fractal generator. Written by Scott Draves.",
499 "*hacks.lmorph.name: LMorph",
500 "*hacks.lmorph.documentation: \
501 This generates random spline-ish line drawings and morphs between \
502 them. Written by Sverre H. Huseby and Glenn T. Lines.",
503 "*hacks.deco.documentation: \
504 This one subdivides and colors rectangles randomly. It looks kind of \
505 like Brady-Bunch-era rec-room wall paneling. (Raven says: ``this \
506 screensaver is ugly enough to peel paint.'') Written by Jamie \
507 Zawinski, inspired by Java code by Michael Bayne.",
508 "*hacks.moire.documentation: \
509 This one draws cool circular interference patterns. Most of the \
510 circles you see aren't explicitly rendered, but show up as a result \
511 of interactions between the other pixels that were drawn. Written by \
512 Jamie Zawinski, inspired by Java code by Michael Bayne. As he \
513 pointed out, the beauty of this one is that the heart of the display \
514 algorithm can be expressed with just a pair of loops and a handful of \
515 arithmetic, giving it a high ``display hack metric''.",
516 "*hacks.moire2.documentation: \
517 Another example of the fun you can have with moire \
518 interference patterns; this hack generates fields of concentric \
519 circles or ovals, and combines the planes with various operations. \
520 The planes are moving independently of one another, causing the \
521 interference lines to ``spray.'' Written by Jamie Zawinski.",
522 "*hacks.lightning.documentation: \
523 This one draws crackling fractal lightning bolts. It's simple, \
524 direct, and to the point. If only it had sound... Written by Keith \
526 "*hacks.strange.documentation: \
527 This draws strange attractors: it's a colorful, \
528 unpredictably-animating field of dots that swoops and twists around. \
529 The motion is very nice. Written by Massimino Pascal.",
530 "*hacks.spiral.documentation: \
531 Moving circular patterns, by Peter Schmitzberger. Moving circular \
532 patterns means moire; interference patterns, of course.",
533 "*hacks.laser.documentation: \
534 Moving radiating lines, that look vaguely like scanning laser beams. \
535 Written by Pascal Pensa. (Frankie say: relax.)",
536 "*hacks.grav.documentation: \
537 This program draws a simple orbital simulation. If you turn on \
538 trails, it looks kind of like a cloud-chamber photograph. Written \
540 "*hacks.drift.documentation: \
541 How could one possibly describe this except as ``drifting recursive \
542 fractal cosmic flames?'' Another fine hack from the Scott Draves \
543 collection of fine hacks.",
544 "*hacks.ifs.name: IFS",
545 "*hacks.ifs.documentation: \
546 This one draws spinning, colliding iterated-function-system images. \
547 Written by Massimino Pascal.",
548 "*hacks.julia.documentation: \
549 This one draws spinning, animating (are you detecting a pattern here \
550 yet?) explorations of the Julia set. You've probably seen static \
551 images of this fractal form before, but it's a lot of fun to watch in \
552 motion as well. One interesting thing is that there is a small \
553 swinging dot passing in front of the image, which indicates the \
554 control point from which the rest of the image was generated. \
555 Written by Sean McCullough.",
556 "*hacks.penrose.documentation: \
557 Draws quasiperiodic tilings; think of the implications on modern \
558 formica technology. Written by Timo Korvola. \
560 In April 1997, Sir Roger Penrose, a British math professor who has \
561 worked with Stephen Hawking on such topics as relativity, black \
562 holes, and whether time has a beginning, filed a \
563 copyright-infringement lawsuit against the Kimberly-Clark \
564 Corporation, which Penrose said copied a pattern he created (a \
565 pattern demonstrating that ``a nonrepeating pattern could exist in \
566 nature'') for its Kleenex quilted toilet paper. Penrose said he \
567 doesn't like litigation but, ``When it comes to the population of \
568 Great Britain being invited by a multinational to wipe their bottoms \
569 on what appears to be the work of a Knight of the Realm, then a last \
570 stand must be taken.'' \
572 As reported by News of the Weird #491, 4-jul-1997.",
573 "*hacks.sierpinski.documentation: \
574 This draws the two-dimensional variant of the recursive Sierpinski \
575 triangle fractal. Written by Desmond Daignault.",
576 "*hacks.braid.documentation: \
577 Draws random color-cycling inter-braided concentric circles. Written \
579 "*hacks.galaxy.documentation: \
580 This draws spinning galaxies, which then collide and scatter their \
581 stars to the, uh, four winds or something. Originally an Amiga \
582 program by Uli Siegmund.",
583 "*hacks.bouboule.documentation: \
584 This draws what looks like a spinning, deforming baloon with \
585 varying-sized spots painted on its invisible surface. Written by \
587 "*hacks.swirl.documentation: \
588 More flowing, swirly patterns. This version is by M. Dobie and R. \
589 Taylor, but you might have seen a Mac program similar to this called \
590 FlowFazer. There is also a cool Java applet of a similar concept",
591 "*hacks.flag.documentation: \
592 This draws a waving colored flag, that undulates its way around the \
593 screen. The trick is the flag can contain arbitrary text and images. \
594 By default, it displays either the current system name and OS \
595 type, or a picture of ``Bob,'' but you can replace the text or the \
596 image with a command-line option. Written by Charles Vidal and Jamie \
598 "*hacks.sphere.documentation: \
599 Another of the classic screenhacks of the distant past, this one \
600 draws shaded spheres in multiple colors. This hack traces its \
601 lineage back to Tom Duff in 1982.",
602 "*hacks.forest.documentation: \
603 This draws fractal trees. Written by Peter Baumung. Everybody loves \
605 "*hacks.lisa.documentation: \
606 This draws Lisajous loops, by Caleb Cullen. Remember that device \
607 they had the Phantom Zone prisoners in during their trial in \
608 Superman? I think that was one of these.",
609 "*hacks.lissie.documentation: \
610 Another Lissajous figure. This one draws the progress of circular \
611 shapes along a path. Written by Alexander Jolk.",
612 "*hacks.goop.documentation: \
613 This draws set of animating, transparent, amoeba-like blobs. The \
614 blobs change shape as they wander around the screen, and they are \
615 translucent, so you can see the lower blobs through the higher ones, \
616 and when one passes over another, their colors merge. Written by \
617 Jamie Zawinski. I got the idea for this from a cool mouse pad I \
618 have, which achieves the same kind of effect in real life by having \
619 several layers plastic with colored oil between them. Written by \
621 "*hacks.starfish.documentation: \
622 This generates a sequence of undulating, throbbing, star-like \
623 patterns which pulsate, rotate, and turn inside out. Another display \
624 mode uses these shapes to lay down a field of colors, which are then \
625 cycled. The motion is very organic. Written by Jamie Zawinski.",
626 "*hacks.munch.documentation: \\n\
633 As reported by HAKMEM, in 1962, Jackson Wright wrote the above PDP-1 \
634 code. That code still lives on in this screenhack, some 35 years \
635 later. The number of lines of enclosing code has increased \
636 substantially, however. This version is by Tim Showalter.",
637 "*hacks.fadeplot.name: FadePlot",
638 "*hacks.fadeplot.documentation: \
639 Draws what looks like a waving ribbon following a sinusoidal path. \
640 Written by Bas van Gaalen and Charles Vidal.",
641 "*hacks.coral.documentation: \
642 Simulates coral growth, albeit somewhat slowly. This image doesn't \
643 really do it justice. Written by Frederick Roeber.",
644 "*hacks.mountain.documentation: \
645 Generates random 3d plots that look vaguely mountainous. Written by \
647 "*hacks.triangle.documentation: \
648 Generates random mountain ranges using iterative subdivision of \
649 triangles. Written by Tobias Gloth.",
650 "*hacks.worm.documentation: \
651 An ancient xlock hack that draws multicolored worms that crawl around \
652 the screen. Written by Brad Taylor, Dave Lemke, Boris Putanec, and \
654 "*hacks.rotor.documentation: \
655 Another ancient xlock demo, this one by Tom Lawrence. It draws a \
656 line segment moving along a complex spiraling curve. I tweaked this \
657 to generate curvier lines, but still frames of it don't look like \
659 "*hacks.ant.documentation: \
660 A cellular automaton that is really a two-dimensional Turing machine: \
661 as the heads (``ants'') walk along the screen, they change pixel \
662 values in their path. Then, as they pass over changed pixels, their \
663 behavior is influenced. Written by David Bagley.",
664 "*hacks.demon.documentation: \
665 A cellular automaton that starts with a random field, and organizes \
666 it into stripes and spirals. Written by David Bagley.",
667 "*hacks.loop.documentation: \
668 This one produces loop-shaped colonies that spawn, age, and \
669 eventually die. Written by David Bagley.",
670 "*hacks.vines.documentation: \
671 This one generates a continuous sequence of small, curvy geometric \
672 patterns. It scatters them around your screen until it fills up, \
673 then it clears the screen and starts over. Written by Tracy Camp and \
675 "*hacks.kaleidescope.documentation: \
676 Another clone of an ancient meme, consisting largely of frenetic \
677 rotational motion of colored lines. This one is by Ron Tapia. The \
678 motion is nice, but I think it needs more solids, or perhaps just \
679 brighter colors. More variations in the rotational speed might help, \
681 "*hacks.xjack.documentation: \
682 This program behaves schizophrenically and makes a lot of typos. \
683 Written by Jamie Zawinski. If you haven't seen Stanley Kubrick's \
684 masterpiece, ``The Shining,'' you won't get it. Those who have \
685 describe this hack as ``inspired.''",
686 "*hacks.xlyap.documentation: \
687 This generates pretty fractal pictures by doing funky math involving \
688 the ``Lyapunov exponent.'' It has a cool interactive mode, too. \
689 Written by Ron Record.",
690 "*hacks.cynosure.documentation: \
691 A hack similar to `greynetic', but less frenetic. The first \
692 implementation was by Stephen Linhart; then Ozymandias G. Desiderata \
693 wrote a Java applet clone. That clone was discovered by Jamie \
694 Zawinski, and ported to C for inclusion here.",
695 "*hacks.flow.documentation: \
696 Another series of strange attractors: a flowing series of points, \
697 making strange rotational shapes. Written by Jeff Butterworth.",
698 "*hacks.epicycle.documentation: \
699 This program draws the path traced out by a point on the edge of a \
700 circle. That circle rotates around a point on the rim of another \
701 circle, and so on, several times. These were the basis for the \
702 pre-heliocentric model of planetary motion. Written by James \
704 "*hacks.interference.documentation: \
705 Another color-field hack, this one works by computing decaying \
706 sinusoidal waves, and allowing them to interfere with each other as \
707 their origins move. Written by Hannu Mallat.",
708 "*hacks.truchet.documentation: \
709 This draws line- and arc-based Truchet patterns that tile the screen. \
710 Written by Adrian Likins.",
711 "*hacks.bsod.name: BSOD",
712 "*hacks.bsod.documentation: \
713 BSOD stands for ``Blue Screen of Death.'' The finest in personal \
714 computer emulation, this hack simulates popular screen savers from a \
715 number of less robust operating systems. Written by Jamie Zawinski.",
716 "*hacks.crystal.documentation: \
717 Moving polygons, similar to a kaleidescope (more like a kaleidescope \
718 than the hack called `kaleid,' actually.) This one by Jouk Jansen.",
719 "*hacks.discrete.documentation: \
720 More ``discrete map'' systems, including new variants of Hopalong and \
721 Julia, and a few others. Written by Tim Auckland.",
722 "*hacks.kumppa.documentation: \
723 Spiraling, spinning, and very, very fast splashes of color rush \
724 toward the screen. Written by Teemu Suutari.",
725 "*hacks.rd-bomb.name: RD-Bomb",
726 "*hacks.rd-bomb.documentation: \
727 Another variation of the `Bomb' program by Scott Draves. This draws \
728 a grid of growing square-like shapes that, once they overtake each \
729 other, react in unpredictable ways. ``RD'' stands for \
730 reaction-diffusion.",
731 "*hacks.sonar.documentation: \
732 This program draws a simulation of a sonar screen. Written by \
733 default, it displays a random assortment of ``bogies'' on the screen, \
734 but if compiled properly, it can ping (pun intended) your local \
735 network, and actually plot the proximity of the other hosts on your \
736 network to you. It would be easy to make it monitor other sources of \
737 data, too. (Processes? Active network connections? CPU usage per \
738 user?) Written by Stephen Martin.",
739 "*hacks.t3d.name: T3D",
740 "*hacks.t3d.documentation: \
741 This draws a working analog clock composed of floating, throbbing \
742 bubbles. Written by Bernd Paysan.",
743 "*hacks.penetrate.documentation: \
744 This hack simulates the classic arcade game Missile Command. Written \
746 "*hacks.deluxe.documentation: \
747 This draws a pulsing sequence of stars, circles, and lines. It would \
748 look better if it was faster, but as far as I can tell, there is no \
749 way to make this be both: fast, and flicker-free. Yet another reason \
750 X sucks. Written by Jamie Zawinski.",
751 "*hacks.compass.documentation: \
752 This draws a compass, with all elements spinning about randomly, for \
753 that ``lost and nauseous'' feeling. Written by Jamie Zawinski.",
754 "*hacks.squiral.documentation: \
755 Draws a set of interacting, square-spiral-producing automata. The \
756 spirals grow outward until they hit something, then they go around \
757 it. Written by Jeff Epler.",
758 "*hacks.xflame.documentation: \
759 Draws a simulation of pulsing fire. It can also take an arbitrary \
760 image and set it on fire too. Written by Carsten Haitzler, hacked on \
762 "*hacks.wander.documentation: \
763 Draws a colorful random-walk, in various forms. Written by Rick \
765 "*hacks.critical.documentation: \
766 Draws a system of self-organizing lines. It starts out as random \
767 squiggles, but after a few iterations, order begins to appear. \
768 Written by Martin Pool.",
769 "*hacks.phosphor.documentation: \
770 Draws a simulation of an old terminal, with large pixels and \
771 long-sustain phosphor. It can run any program as a source of the text \
772 it displays. Written by Jamie Zawinski.",
773 "*hacks.xmatrix.documentation: \
774 A rendition of the text scrolls seen in the movie ``The Matrix.'' \
775 Written by Jamie Zawinski.",
776 "*hacks.petri.documentation: \
777 This simulates colonies of mold growing in a petri dish. Growing \
778 colored circles overlap and leave spiral interference in their wake. \
779 Written by Dan Bornstein.",
780 "*hacks.shadebobs.name: ShadeBobs",
781 "*hacks.shadebobs.documentation: \
782 This draws smoothly-shaded oscilating oval patterns, that look \
783 something like vapor trails or neon tubes. Written by Shane Smit.",
784 "*hacks.ccurve.name: C Curve",
785 "*hacks.ccurve.documentation: \
786 Generates self-similar linear fractals, including the classic ``C \
787 Curve.'' Written by Rick Campbell.",
788 "*hacks.blaster.documentation: \
789 Draws a simulation of flying space-combat robots (cleverly disguised \
790 as colored circles) doing battle in front of a moving star field. \
791 Written by Jonathan Lin.",
792 "*hacks.bumps.documentation: \
793 A bit like `Spotlight', except that instead of merely exposing part \
794 of your desktop, it creates a bump map from it. Basically, it \
795 3D-izes a roaming section of your desktop, based on color intensity. \
796 Written by Shane Smit.",
797 "*hacks.xteevee.name: XTeeVee",
798 "*hacks.xteevee.documentation: \
799 XTeeVee simulates various television problems, including static, \
800 loss of vertical hold, and a test pattern. By Greg Knauss.",
801 "*hacks.xspirograph.name: XSpiroGraph",
802 "*hacks.xspirograph.documentation: \
803 Simulates that pen-in-nested-plastic-gears toy from your childhood. \
805 "*hacks.nerverot.name: NerveRot",
806 "*hacks.nerverot.documentation: \
807 Draws different shapes composed of nervously vibrating squiggles, \
808 as if seen through a camera operated by a monkey on crack. \
810 "*hacks.webcollage.name: WebCollage",
811 "*hacks.webcollage.documentation: \
812 This program makes collages out of random images pulled off of the \
813 World Wide Web. It finds these images by doing random web searches, \
814 and then extracting images from the returned pages. It can also be \
815 set up to filter the images through the `VidWhacker' program, above, \
816 which looks really great. \
818 (Note that most of the images it finds are text, and not pictures. \
819 This is because most of the web is pictures of text. Which is pretty \
820 sad.) Written by Jamie Zawinski.",
821 "*hacks.vidwhacker.name: VidWhacker",
822 "*hacks.vidwhacker.documentation: \
823 This is actually just a shell script that grabs a frame of video from \
824 the system's video input, and then uses some PBM filters (chosen at \
825 random) to manipulate and recombine the video frame in various ways \
826 (edge detection, subtracting the image from a rotated version of \
827 itself, etc.) Then it displays that image for a few seconds, and \
828 does it again. This works really well if you just feed broadcast \
829 television into it. \
831 Currently, the three lines of the script that actually grab the \
832 source picture are SGI specific, but it should be trivial to adapt it \
833 to work on other systems that can grab video (please send me the \
834 changes if you do this...)",
835 "*hacks.rocks.documentation: \
836 This draws an animation of flight through an asteroid field, with \
837 changes in rotation and direction. It can also display 3D \
838 separations for red/blue glasses! Mostly written by Jamie Zawinski.",
839 "*hacks.bubbles.documentation: \
840 This simulates the kind of bubble formation that happens when water \
841 boils:small bubbles appear, and as they get closer to each other, \
842 they combine to form larger bubbles, which eventually pop. Written \
844 "*hacks.gears.documentation: \
845 This draws sets of turning, interlocking gears, rotating in three \
846 dimensions. Another GL hack, by Danny Sung, Brian Paul, Ed Mackey, \
847 and Jamie Zawinski.",
848 "*hacks.superquadrics.documentation: \
849 Ed Mackey reports that he wrote the first version of this program in \
850 BASIC on a Commodore 64 in 1987, as a 320x200 black and white \
851 wireframe. Now it is GL and has specular reflections.",
852 "*hacks.morph3d.name: Morph3D",
853 "*hacks.morph3d.documentation: \
854 Another 3d shape-changing GL hack, by Marcelo Vianna. It has the \
855 same shiny-plastic feel as Superquadrics, as many computer-generated \
857 "*hacks.cage.documentation: \
858 This draws Escher's ``Impossible Cage,'' a 3d analog of a moebius \
859 strip, and rotates it in three dimensions. Written by Marcelo \
861 "*hacks.moebius.documentation: \
862 Another M. C. Escher hack by Marcelo Vianna, this one draws \
863 ``Moebius Strip II,'' a GL image of ants walking along the surface of \
865 "*hacks.stairs.documentation: \
866 by Marcelo Vianna's third Escher GL hack, this one draws an \
867 ``infinite'' staircase.",
868 "*hacks.pipes.documentation: \
869 If you've ever been in the same room with a Windows NT machine, \
870 you've probably seen this GL hack. This version is by Marcelo \
872 "*hacks.sproingies.documentation: \
873 Q-Bert meets Marble Madness! Written by Ed Mackey.",
874 "*hacks.rubik.documentation: \
875 Draws a Rubik's Cube that rotates in three dimensions and repeatedly \
876 shuffles and solves itself. Another fine GL hack by Marcelo Vianna.",
877 "*hacks.atlantis.documentation: \
878 This is xfishtank writ large: a GL animation of a number of sharks, \
879 dolphins, and whales. The swimming motions are great. Originally \
880 written by Mark Kilgard.",
881 "*hacks.lament.documentation: \
882 Animates a simulation of Lemarchand's Box, repeatedly solving itself. \
883 Requires OpenGL, and a machine with fast hardware support for texture \
884 maps. Warning: occasionally opens doors. Written by Jamie Zawinski.",
885 "*hacks.bubble3d.name: Bubble3D",
886 "*hacks.bubble3d.documentation: \
887 Draws a stream of rising, undulating 3D bubbles, rising toward the \
888 top of the screen, with nice specular reflections. Written by Richard \
890 "*hacks.glplanet.name: GLPlanet",
891 "*hacks.glplanet.documentation: \
892 Draws a planet bouncing around in space. Written by David Konerding. \
893 The built-in image is a map of the earth (extracted from `xearth'), \
894 but you can wrap any texture around the sphere, e.g., the planetary \
895 textures that come with `ssystem'.",
896 "*hacks.pulsar.documentation: \
897 Draws some intersecting planes, making use of alpha blending, fog, \
898 textures, and mipmaps, plus a ``frames per second'' meter so that you \
899 can tell how fast your graphics card is... Requires OpenGL. Written \
900 by David Konerding.",
901 "*hacks.extrusion.documentation: \
902 Draws various rotating extruded shapes that twist around, lengthen, \
903 and turn inside out. Created by David Konerding from the samples \
904 that come with the GL Extrusion library by Linas Vepstas.",
905 "*hacks.sierpinski3d.name: Sierpinski3D",
906 "*hacks.sierpinski3d.documentation: \
907 This draws the three-dimensional variant of the recursive Sierpinski \
908 triangle fractal, using GL. Written by Tim Robinson and Jamie Zawinski.",
909 "*hacks.ripples.documentation: \
910 This draws rippling interference patterns like splashing water. \
911 With the -water option, it manipulates your desktop image to look \
912 like something is dripping into it. Written by Tom Hammersley.",
913 "*hacks.gflux.name: GFlux",
914 "*hacks.gflux.documentation: \
915 Draws a rippling waves on a rotating wireframe grid, using GL. \
916 Written by Josiah Pease.",
917 "*hacks.xrayswarm.name: XRaySwarm",
918 "*hacks.xrayswarm.documentation: \
919 Draws a few swarms of critters flying around the screen, with nicely \
920 faded color trails behind them. Written by Chris Leger.",
921 "*hacks.zoom.documentation: \
922 Zooms in on a part of the screen and then moves around. With the \
923 -lenses option the result is like looking through many overlapping \
924 lenses rather than just a simple zoom. Written by James Macnicol.",
925 "*hacks.whirlwindwarp.name: WhirlwindWarp",
926 "*hacks.whirlwindwarp.documentation: \
927 Floating stars are acted upon by a mixture of simple 2D \
928 forcefields. The strength of each forcefield changes \
929 continuously, and it is also switched on and off at random. \
930 By Paul 'Joey' Clark.",
931 "*hacks.stonerview.name: StonerView",
932 "*hacks.stonerview.documentation: \
933 Chains of colorful squares dance around each other in complex spiral \
934 patterns. Written by Andrew Plotkin, based on SGI's `electropaint' \
936 "*hacks.starwars.name: StarWars",
937 "*hacks.starwars.documentation: \
938 Draws a stream of text slowly scrolling into the distance at an \
939 angle, over a star field, like at the beginning of the movie of the \
940 same name. Written by Jamie Zawinski and Claudio Matauoka.",
941 "*hacks.gltext.name: GLText",
942 "*hacks.gltext.documentation: \
943 Displays a few lines of text spinning around in a solid 3D font. \
944 Written by Jamie Zawinski.",
945 "*hacks.xdaliclock.name: XDaliClock",
946 "*hacks.xdaliclock.documentation: \
947 XDaliClock draws a large digital clock, the numbers of which change by \
948 ``melting'' into their new shapes. Written by Jamie Zawinski. This \
949 is not included with the XScreenSaver package, but if you don't have \
950 it already, you can find it at <http://www.jwz.org/xdaliclock/>.",
951 "*hacks.xearth.documentation: \
952 XEarth draws an image of the Earth, as seen from your favorite vantage \
953 point in space, correctly shaded for the current position of the Sun. \
954 Written by Kirk Johnson. This is not included with the XScreenSaver \
955 package, but if you don't have it already, you can find it at \
956 <http://www.cs.colorado.edu/~tuna/xearth/>.",
957 "*hacks.ssystem.name: SSystem",
958 "*hacks.ssystem.documentation: \
959 SSystem is a GL Solar System simulator. It simulates flybys of Sun, \
960 the nine planets and a few major satellites, with four camera modes. \
961 Written by Raul Alonso. This is not included with the XScreenSaver \
962 package, but if you don't have it already, you can find it at \
963 <http://www1.las.es/~amil/ssystem/>.",
964 "*hacks.xmountains.documentation: \
965 XMountains generates realistic-looking fractal terrains of snow-capped \
966 mountains near water, with either a top view or a side view. \
967 Written by Stephen Booth. This is not included with the XScreenSaver \
968 package, but if you don't have it already, you can find it at \
969 <http://www.epcc.ed.ac.uk/~spb/xmountains/>. \
971 Be sure to compile it with -DVROOT or it won't work right when launched \
972 by the xscreensaver daemon.",
973 "*hacks.xaos.name: XaoS",
974 "*hacks.xaos.documentation: \
975 XaoS generates fast fly-through animations of the Mandelbrot and other \
976 fractal sets. Written by Thomas Marsh and Jan Hubicka. This is not \
977 included with the XScreenSaver package, but if you don't have it \
978 already, you can find it at <http://limax.paru.cas.cz/~hubicka/XaoS/>.",
979 "*hacks.xfishtank.name: XFishTank",
980 "*hacks.xfishtank.documentation: \
981 Fish! This is not included with the XScreenSaver package, but if you \
982 don't have it already, you can find it at \
983 <http://metalab.unc.edu/pub/Linux/X11/demos/>.",
984 "*hacks.xsnow.documentation: \
985 Draws falling snow and the occasional tiny Santa. By Rick Jansen. \
986 You can find it at <http://www.euronet.nl/~rja/Xsnow/>.",
987 "*hacks.goban.documentation: \
988 Replays historical games of go (aka wei-chi and baduk) on the screen. \
989 By Scott Draves. You can find it at <http://www.draves.org/goban/>.",
990 "*hacks.electricsheep.name: ElectricSheep",
991 "*hacks.electricsheep.documentation: \
992 ElectricSheep is an xscreensaver module that displays mpeg video of \
993 an animated fractal flame. In the background, it contributes render \
994 cycles to the next animation. Periodically it uploades completed \
995 frames to the server, where they are compressed for distribution to \
998 This program is recommended only if you have a high bandwidth \
999 connection to the Internet. \
1001 By Scott Draves. You can find it at <http://www.electricsheep.org/>. \
1002 See that web site for configuration information.",
1003 "*hacks.cosmos.documentation: \
1004 Draws fireworks and zooming, fading flares. By Tom Campbell. \
1005 You can find it at <http://www.mindspring.com/~campbell/cosmos/>.",
projects / xscreensaver / blob