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\
63 slidescreen -root \\n\
64 decayscreen -root \\n\
66 blitspin -root -grab \\n\
70 \"Ripples (oily)\" ripples -root -oily -light 2 \\n\
71 \"Ripples (stir)\" ripples -root -oily -light 2 -stir \\n\
72 \"Ripples (desktop)\" ripples -root -water -light 6 \\n\
88 \"Grav (trails)\" grav -root -trail -decay \\n\
103 goop -root -max-velocity 0.5 -elasticity \
106 \"Starfish (blob)\" starfish -root -blob \\n\
109 coral -root -delay 0 \\n\
111 triangle -root -delay 1 \\n\
118 kaleidescope -root \\n\
120 xlyap -root -randomize \\n\
124 interference -root \\n\
125 truchet -root -randomize \\n\
131 \"RD-Bomb (mobile)\" rd-bomb -root -speed 1 -size 0.1 \\n\
140 \"Wander (spots)\" wander -root -advance 0 -size 10 -circles \
141 True -length 10000 -reset 100000 \\n\
145 petri -root -size 2 -count 20 \\n\
146 \"Petri 2\" petri -root -minlifespeed 0.02 \
147 -maxlifespeed 0.03 -minlifespan 1 \
148 -maxlifespan 1 -instantdeathchan 0 \
149 -minorchan 0 -anychan 0.3 \\n\
155 xspirograph -root \\n\
157 - \"NerveRot (dense)\" nerverot -root -count 1000 \\n\
158 - \"NerveRot (thick)\" nerverot -root -count 100 -line-width 4 \
159 -max-nerve-radius 0.8 -nervousness 0.5 -db \\n\
161 color: bubbles -root \\n\
162 default-n: webcollage -root \\n\
163 default-n: \"WebCollage (whacked)\" \
164 webcollage -root -filter \
165 'vidwhacker -stdin -stdout' \\n\
166 - default-n: vidwhacker -root \\n\
169 GL: superquadrics -root \\n\
170 GL: morph3d -root \\n\
172 GL: moebius -root \\n\
173 GL: stairs -root \\n\
175 GL: sproingies -root \\n\
177 GL: atlantis -root \\n\
178 GL: lament -root \\n\
179 GL: bubble3d -root \\n\
180 GL: glplanet -root \\n\
181 GL: pulsar -root \\n\
182 - GL: \"Pulsar (textures)\" \
183 pulsar -root -texture -mipmap \
184 -texture_quality -light -fog \\n\
185 GL: extrusion -root \\n\
186 GL: sierpinski3d -root \\n\
189 - xdaliclock -root -builtin3 -cycle \\n\
190 - default-n: xearth -nofork -nostars -ncolors 50 \
191 -night 3 -wait 0 -timewarp 400.0 -pos \
193 - ssystem -fullscreen :32 \\n\
194 - xmountains -b -M -Z 0 -r 1 \\n\
195 - \"XMountains (top)\" xmountains -b -M -Z 0 -r 1 -m \\n\
196 - xaos -root -autopilot -incoloring -1 \
197 -nogui -outcoloring -1 \\n\
198 - xfishtank -d -s \\n\
201 - electricsheep \\n",
202 "XScreenSaver.pointerPollTime: 5",
203 "XScreenSaver.initialDelay: 0",
204 "XScreenSaver.windowCreationTimeout: 30",
205 "XScreenSaver.bourneShell: /bin/sh",
206 "*Dialog.headingFont: *-times-bold-r-*-*-*-180-*-*-*-iso8859-1",
207 "*Dialog.bodyFont: *-helvetica-bold-r-*-*-*-140-*-*-*-iso8859-1",
208 "*Dialog.labelFont: *-helvetica-bold-r-*-*-*-140-*-*-*-iso8859-1",
209 "*Dialog.buttonFont: *-helvetica-bold-r-*-*-*-140-*-*-*-iso8859-1",
210 "*Dialog.dateFont: *-courier-medium-r-*-*-*-80-*-*-*-iso8859-1",
211 "*Dialog.foreground: #000000",
212 "*Dialog.background: #BFBFBF",
213 "*Dialog.Button.foreground: #000000",
214 "*Dialog.Button.background: #D0D0D0",
215 "*Dialog.text.foreground: #000000",
216 "*Dialog.text.background: #FFFFFF",
217 "*Dialog.logo.foreground: #FF0000",
218 "*Dialog.logo.background: #FFFFFF",
219 "*Dialog.topShadowColor: #E7E7E7",
220 "*Dialog.bottomShadowColor: #737373",
221 "*Dialog.logo.width: 200",
222 "*Dialog.logo.height: 200",
223 "*Dialog.internalBorderWidth: 30",
224 "*Dialog.borderWidth: 1",
225 "*Dialog.shadowThickness: 4",
226 "*passwd.heading.label: XScreenSaver %s",
227 "*passwd.body.label: This display is locked.",
228 "*passwd.user.label: User:",
229 "*passwd.passwd.label: Password:",
230 "*passwd.passwdFont: *-courier-medium-r-*-*-*-140-*-*-*-iso8859-1",
231 "*passwd.thermometer.width: 8",
232 "*splash.heading.label: XScreenSaver %s",
233 "*splash.body.label: Copyright © 1991-2000 by",
234 "*splash.body2.label: Jamie Zawinski <jwz@jwz.org>",
235 "*splash.demo.label: Demo",
236 "*splash.prefs.label: Prefs",
237 "*splash.help.label: Help",
238 "*fontList: *-helvetica-medium-r-*-*-*-120-*-*-*-iso8859-1",
239 "*demoDialog*label1.fontList: *-helvetica-medium-r-*-*-*-140-*-*-*-iso8859-1",
240 "*cmdText.fontList: *-courier-medium-r-*-*-*-120-*-*-*-iso8859-1",
241 "*label0.fontList: *-helvetica-bold-r-*-*-*-140-*-*-*-iso8859-1",
242 "XScreenSaver*doc.fontList: *-helvetica-medium-r-*-*-*-100-*-*-*-iso8859-1",
243 "*foreground: #000000",
244 "*background: #C0C0C0",
245 "*XmTextField.foreground: #000000",
246 "*XmTextField.background: #FFFFFF",
247 "*list.foreground: #000000",
248 "*list.background: #FFFFFF",
249 "*ApplicationShell.title: XScreenSaver",
250 "*warning.title: XScreenSaver",
251 "*warning_popup.title: XScreenSaver",
252 "*allowShellResize: True",
253 "*autoUnmanage: False",
254 "*menubar*file.labelString: File",
255 "*menubar*file.mnemonic: F",
256 "*file.blank.labelString: Blank Screen Now",
257 "*file.blank.mnemonic: B",
258 "*file.lock.labelString: Lock Screen Now",
259 "*file.lock.mnemonic: L",
260 "*file.kill.labelString: Kill Daemon",
261 "*file.kill.mnemonic: K",
262 "*file.restart.labelString: Restart Daemon",
263 "*file.restart.mnemonic: R",
264 "*file.exit.labelString: Exit",
265 "*file.exit.mnemonic: E",
266 "*menubar*edit.labelString: Edit",
267 "*menubar*edit.mnemonic: E",
268 "*edit.cut.labelString: Cut",
269 "*edit.cut.mnemonic: u",
270 "*edit.copy.labelString: Copy",
271 "*edit.copy.mnemonic: C",
272 "*edit.paste.labelString: Paste",
273 "*edit.paste.mnemonic: P",
274 "*menubar*help.labelString: Help",
275 "*menubar*help.mnemonic: H",
276 "*help.about.labelString: About...",
277 "*help.about.mnemonic: A",
278 "*help.docMenu.labelString: Documentation...",
279 "*help.docMenu.mnemonic: D",
280 "*demoTab.marginWidth: 10",
281 "*optionsTab.marginWidth: 10",
282 "*XmScrolledWindow.topOffset: 10",
283 "*XmScrolledWindow.leftOffset: 10",
284 "*demoTab.topOffset: 4",
285 "*form1.bottomOffset: 10",
286 "*form3.leftOffset: 10",
287 "*form3.rightOffset: 10",
288 "*frame.topOffset: 10",
289 "*frame.bottomOffset: 10",
290 "*enabled.topOffset: 10",
291 "*visLabel.topOffset: 10",
292 "*combo.topOffset: 10",
293 "*form4.bottomOffset: 4",
294 "*hr.bottomOffset: 4",
295 "*XmComboBox.marginWidth: 0",
296 "*XmComboBox.marginHeight: 0",
297 "*demo.marginWidth: 30",
298 "*demo.marginHeight: 4",
299 "*man.marginWidth: 10",
300 "*man.marginHeight: 4",
301 "*down.leftOffset: 40",
302 "*down.marginWidth: 4",
303 "*down.marginHeight: 4",
304 "*up.marginWidth: 4",
305 "*up.marginHeight: 4",
306 "*frame.traversalOn: False",
307 "*list.automaticSelection: True",
308 "*list.visibleItemCount: 20",
310 "*combo.columns: 11",
311 "*demoTab.labelString: Graphics Demos",
312 "*optionsTab.labelString: Screensaver Options",
313 "*down.labelString: \\\\/ ",
314 "*up.labelString: /\\\\ ",
315 "*frameLabel.labelString: ",
316 "*cmdLabel.labelString: Command Line:",
317 "*cmdLabel.alignment: ALIGNMENT_BEGINNING",
318 "*enabled.labelString: Enabled",
319 "*visLabel.labelString: Visual:",
320 "*visLabel.alignment: ALIGNMENT_END",
321 "*visLabel.leftOffset: 20",
322 "*demo.labelString: Demo",
323 "*man.labelString: Documentation...",
324 "*done.labelString: Quit",
325 "*preferencesLabel.labelString: XScreenSaver Parameters",
326 "*timeoutLabel.labelString: Saver Timeout",
327 "*cycleLabel.labelString: Cycle Timeout",
328 "*fadeSecondsLabel.labelString: Fade Duration",
329 "*fadeTicksLabel.labelString: Fade Ticks",
330 "*lockLabel.labelString: Lock Timeout",
331 "*passwdLabel.labelString: Password Timeout",
332 "*preferencesForm*XmTextField.columns: 8",
333 "*verboseToggle.labelString: Verbose",
334 "*cmapToggle.labelString: Install Colormap",
335 "*fadeToggle.labelString: Fade Colormap",
336 "*unfadeToggle.labelString: Unfade Colormap",
337 "*lockToggle.labelString: Require Password",
338 "*OK.marginWidth: 30",
339 "*OK.marginHeight: 4",
340 "*OK.leftOffset: 10",
341 "*OK.bottomOffset: 10",
342 "*Cancel.marginWidth: 30",
343 "*Cancel.marginHeight: 4",
344 "*Cancel.rightOffset: 10",
345 "*Cancel.bottomOffset: 10",
346 "*hacks.documentation.isInstalled: True",
347 "*hacks.qix.documentation: \
348 This is the swiss army chainsaw of qix programs. It bounces a series \
349 of line segments around the screen, and uses variations on this basic \
350 motion pattern to produce all sorts of different presentations: line \
351 segments, filled polygons, overlapping translucent areas... Written \
353 "*hacks.attraction.documentation: \
354 Like qix, this uses a simple simple motion model to generate many \
355 different display modes. The control points attract each other up to \
356 a certain distance, and then begin to repel each other. The \
357 attraction/repulsion is proportional to the distance between any two \
358 particles, similar to the strong and weak nuclear forces. \
360 One of the most interesting ways to watch this hack is simply as \
361 bouncing balls, because their motions and interactions with each \
362 other are so odd. Sometimes two balls will get into a tight orbit \
363 around each other, to be interrupted later by a third, or by the edge \
364 of the screen. It looks quite chaotic. \
366 Written by Jamie Zawinski, based on Lisp code by John Pezaris.",
367 "*hacks.pyro.documentation: \
368 Pyro draws exploding fireworks. Blah blah blah. Written by Jamie \
370 "*hacks.helix.documentation: \
371 This repeatedly generates spirally string-art-ish patterns. Written \
373 "*hacks.pedal.documentation: \
374 This is sort of a combination spirograph/string-art. It generates a \
375 large, complex polygon, and lets the X server do the bulk of the work \
376 by giving it an even/odd winding rule. Written by Dale Moore, based \
377 on some ancient PDP-11 code.",
378 "*hacks.rorschach.documentation: \
379 This generates random inkblot patterns. The algorithm is deceptively \
380 simple for how well it works; it merely walks a dot around the screen \
381 randomly, and then reflects the image horizontally, vertically, or \
382 both. Any deep-seated neurotic tendencies which this program reveals \
383 are your own problem. Written by Jamie Zawinski.",
384 "*hacks.hopalong.documentation: \
385 This draws lacy fractal patterns, based on iteration in the imaginary \
386 plane, from a 1986 Scientific American article. Mostly written by \
388 "*hacks.greynetic.documentation: \
389 This draws random colored and stippled rectangles. Written by Jamie \
391 "*hacks.xroger.documentation: \
392 The XScreenSaver logo. Don't you hate it? So do I. Would you like \
393 to design a new logo for XScreenSaver? If so, send jwz your \
395 "*hacks.imsmap.name: IMSmap",
396 "*hacks.imsmap.documentation: \
397 This generates random cloud-like patterns. It looks quite different \
398 in monochrome and color. The basic idea is to take four points on \
399 the edge of the image, and assign each a random ``elevation''. Then \
400 find the point between them, and give it a value which is the average \
401 of the other four, plus some small random offset. Then coloration is \
402 done based on elevation. \
404 The color selection is done by binding the elevation to either hue, \
405 saturation, or brightness, and assigning random values to the others. \
406 The ``brightness'' mode tends to yield cloudlike patterns, and the \
407 others tend to generate images that look like heat-maps or CAT-scans. \
408 Written by Juergen Nickelsen and Jamie Zawinski.",
409 "*hacks.slidescreen.name: SlideScreen",
410 "*hacks.slidescreen.documentation: \
411 This grabs an image of whatever is on your screen, divides it into a \
412 grid, and then randomly shuffles the squares around as if it was one \
413 of those annoying ``16-puzzle'' games, where there is a grid of \
414 squares, one of which is missing. I hate trying to solve those \
415 puzzles, but watching one permute itself is more amusing. Written by \
417 "*hacks.decayscreen.name: DecayScreen",
418 "*hacks.decayscreen.documentation: \
419 This grabs an image of whatever is on your screen, and makes it melt. \
420 You've no doubt seen this effect before, but no screensaver would \
421 really be complete without it. It works best if there's something \
422 colorful visible. Warning, if the effect continues after the screen \
423 saver is off, seek medical attention. Written by David Wald and \
426 A number of these screenhacks have the ability to take an image of \
427 your desktop and manipulate it in some way. On SGI systems, these \
428 programs are able to (at random) pull their source image from the \
429 system's video input instead! This works nicely if you leave some \
430 some random television station plugged in.",
431 "*hacks.jigsaw.documentation: \
432 This grabs a screen image, carves it up into a jigsaw puzzle, \
433 shuffles it, and then solves the puzzle. This works especially well \
434 when you feed it an external video signal instead of letting it grab \
435 the screen image (actually, I guess this is generally true...) When \
436 it is grabbing a video image, it is sometimes pretty hard to guess \
437 what the image is going to look like once the puzzle is solved. \
438 Written by Jamie Zawinski.",
439 "*hacks.blitspin.name: BlitSpin",
440 "*hacks.blitspin.documentation: \
441 The ``blitspin'' hack repeatedly rotates a bitmap by 90 degrees by \
442 using logical operations: the bitmap is divided into quadrants, and \
443 the quadrants are shifted clockwise. Then the same thing is done \
444 again with progressively smaller quadrants, except that all \
445 sub-quadrants of a given size are rotated in parallel. Written by \
446 Jamie Zawinski based on some cool SmallTalk code seen in in Byte \
449 As you watch it, the image appears to dissolve into static and then \
450 reconstitute itself, but rotated. You can provide the image to use, \
451 as an XBM or XPM file, or tell it to grab a screen image and rotate \
453 "*hacks.slip.documentation: \
454 This program throws some random bits on the screen, then sucks them \
455 through a jet engine and spews them out the other side. To avoid \
456 turning the image completely to mush, every now and then it will and \
457 then it interjects some splashes of color into the scene, or go into \
458 a spin cycle, or stretch the image like taffy, or (this is my \
459 addition) grab an image of your current desktop to chew on. \
460 Originally written by Scott Draves; whacked on by Jamie Zawinski.",
461 "*hacks.distort.documentation: \
462 This hack grabs an image of the screen, and then lets a transparent \
463 lens wander around the screen, magnifying whatever is underneath. \
464 Written by Jonas Munsin.",
465 "*hacks.spotlight.documentation: \
466 Draws a spotlight scanning across a black screen, illumnating the \
467 underlying desktop when it passes. Written by Rick Schultz.",
468 "*hacks.hypercube.documentation: \
469 This displays 2D projections of the sequence of 3D objects which are \
470 the projections of the 4D analog to the cube: as a square is composed \
471 of four lines, each touching two others; and a cube is composed of \
472 six squares, each touching four others; a hypercube is composed of \
473 eight cubes, each touching six others. To make it easier to \
474 visualize the rotation, it uses a different color for the edges of \
475 each face. Don't think about it too long, or your brain will melt. \
476 Written by Joe Keane, Fritz Mueller, and Jamie Zawinski.",
477 "*hacks.hyperball.documentation: \
478 Hyperball is to hypercube as icosahedron is to cube: this displays \
479 a 2D projection of the sequence of 3D objects which are the projections \
480 of the 4D analog to the icosahedron. Written by Joe Keane.",
481 "*hacks.halo.documentation: \
482 This draws trippy psychedelic circular patterns that hurt to look at. \
483 It can also animate the control-points, but that takes a lot of CPU \
484 and bandwidth. Written by Jamie Zawinski.",
485 "*hacks.maze.documentation: \
486 This is the ancient X maze demo, modified to work with xscreensaver. \
487 It generates a random maze, then solves it with visual feedback. \
488 Originally by Jim Randell; modified by a cast of thousands.",
489 "*hacks.noseguy.documentation: \
490 A little man with a big nose wanders around your screen saying \
491 things. The things which he says can come from a file, or from an \
492 external program like `zippy' or `fortune'. This was extracted from \
493 `xnlock' by Dan Heller. Colorized by Jamie Zawinski.",
494 "*hacks.flame.documentation: \
495 Another iterative fractal generator. Written by Scott Draves.",
496 "*hacks.lmorph.name: LMorph",
497 "*hacks.lmorph.documentation: \
498 This generates random spline-ish line drawings and morphs between \
499 them. Written by Sverre H. Huseby and Glenn T. Lines.",
500 "*hacks.deco.documentation: \
501 This one subdivides and colors rectangles randomly. It looks kind of \
502 like Brady-Bunch-era rec-room wall paneling. (Raven says: ``this \
503 screensaver is ugly enough to peel paint.'') Written by Jamie \
504 Zawinski, inspired by Java code by Michael Bayne.",
505 "*hacks.moire.documentation: \
506 This one draws cool circular interference patterns. Most of the \
507 circles you see aren't explicitly rendered, but show up as a result \
508 of interactions between the other pixels that were drawn. Written by \
509 Jamie Zawinski, inspired by Java code by Michael Bayne. As he \
510 pointed out, the beauty of this one is that the heart of the display \
511 algorithm can be expressed with just a pair of loops and a handful of \
512 arithmetic, giving it a high ``display hack metric''.",
513 "*hacks.moire2.documentation: \
514 Another example of the fun you can have with moire \
515 interference patterns; this hack generates fields of concentric \
516 circles or ovals, and combines the planes with various operations. \
517 The planes are moving independently of one another, causing the \
518 interference lines to ``spray.'' Written by Jamie Zawinski.",
519 "*hacks.lightning.documentation: \
520 This one draws crackling fractal lightning bolts. It's simple, \
521 direct, and to the point. If only it had sound... Written by Keith \
523 "*hacks.strange.documentation: \
524 This draws strange attractors: it's a colorful, \
525 unpredictably-animating field of dots that swoops and twists around. \
526 The motion is very nice. Written by Massimino Pascal.",
527 "*hacks.spiral.documentation: \
528 Moving circular patterns, by Peter Schmitzberger. Moving circular \
529 patterns means moire; interference patterns, of course.",
530 "*hacks.laser.documentation: \
531 Moving radiating lines, that look vaguely like scanning laser beams. \
532 Written by Pascal Pensa. (Frankie say: relax.)",
533 "*hacks.grav.documentation: \
534 This program draws a simple orbital simulation. If you turn on \
535 trails, it looks kind of like a cloud-chamber photograph. Written \
537 "*hacks.drift.documentation: \
538 How could one possibly describe this except as ``drifting recursive \
539 fractal cosmic flames?'' Another fine hack from the Scott Draves \
540 collection of fine hacks.",
541 "*hacks.ifs.name: IFS",
542 "*hacks.ifs.documentation: \
543 This one draws spinning, colliding iterated-function-system images. \
544 Written by Massimino Pascal.",
545 "*hacks.julia.documentation: \
546 This one draws spinning, animating (are you detecting a pattern here \
547 yet?) explorations of the Julia set. You've probably seen static \
548 images of this fractal form before, but it's a lot of fun to watch in \
549 motion as well. One interesting thing is that there is a small \
550 swinging dot passing in front of the image, which indicates the \
551 control point from which the rest of the image was generated. \
552 Written by Sean McCullough.",
553 "*hacks.penrose.documentation: \
554 Draws quasiperiodic tilings; think of the implications on modern \
555 formica technology. Written by Timo Korvola. \
557 In April 1997, Sir Roger Penrose, a British math professor who has \
558 worked with Stephen Hawking on such topics as relativity, black \
559 holes, and whether time has a beginning, filed a \
560 copyright-infringement lawsuit against the Kimberly-Clark \
561 Corporation, which Penrose said copied a pattern he created (a \
562 pattern demonstrating that ``a nonrepeating pattern could exist in \
563 nature'') for its Kleenex quilted toilet paper. Penrose said he \
564 doesn't like litigation but, ``When it comes to the population of \
565 Great Britain being invited by a multinational to wipe their bottoms \
566 on what appears to be the work of a Knight of the Realm, then a last \
567 stand must be taken.'' \
569 As reported by News of the Weird #491, 4-jul-1997.",
570 "*hacks.sierpinski.documentation: \
571 This draws the two-dimensional variant of the recursive Sierpinski \
572 triangle fractal. Written by Desmond Daignault.",
573 "*hacks.braid.documentation: \
574 Draws random color-cycling inter-braided concentric circles. Written \
576 "*hacks.galaxy.documentation: \
577 This draws spinning galaxies, which then collide and scatter their \
578 stars to the, uh, four winds or something. Originally an Amiga \
579 program by Uli Siegmund.",
580 "*hacks.bouboule.documentation: \
581 This draws what looks like a spinning, deforming baloon with \
582 varying-sized spots painted on its invisible surface. Written by \
584 "*hacks.swirl.documentation: \
585 More flowing, swirly patterns. This version is by M. Dobie and R. \
586 Taylor, but you might have seen a Mac program similar to this called \
587 FlowFazer. There is also a cool Java applet of a similar concept",
588 "*hacks.flag.documentation: \
589 This draws a waving colored flag, that undulates its way around the \
590 screen. The trick is the flag can contain arbitrary text and images. \
591 By default, it displays either the current system name and OS \
592 type, or a picture of ``Bob,'' but you can replace the text or the \
593 image with a command-line option. Written by Charles Vidal and Jamie \
595 "*hacks.sphere.documentation: \
596 Another of the classic screenhacks of the distant past, this one \
597 draws shaded spheres in multiple colors. This hack traces its \
598 lineage back to Tom Duff in 1982.",
599 "*hacks.forest.documentation: \
600 This draws fractal trees. Written by Peter Baumung. Everybody loves \
602 "*hacks.lisa.documentation: \
603 This draws Lisajous loops, by Caleb Cullen. Remember that device \
604 they had the Phantom Zone prisoners in during their trial in \
605 Superman? I think that was one of these.",
606 "*hacks.lissie.documentation: \
607 Another Lissajous figure. This one draws the progress of circular \
608 shapes along a path. Written by Alexander Jolk.",
609 "*hacks.goop.documentation: \
610 This draws set of animating, transparent, amoeba-like blobs. The \
611 blobs change shape as they wander around the screen, and they are \
612 translucent, so you can see the lower blobs through the higher ones, \
613 and when one passes over another, their colors merge. Written by \
614 Jamie Zawinski. I got the idea for this from a cool mouse pad I \
615 have, which achieves the same kind of effect in real life by having \
616 several layers plastic with colored oil between them. Written by \
618 "*hacks.starfish.documentation: \
619 This generates a sequence of undulating, throbbing, star-like \
620 patterns which pulsate, rotate, and turn inside out. Another display \
621 mode uses these shapes to lay down a field of colors, which are then \
622 cycled. The motion is very organic. Written by Jamie Zawinski.",
623 "*hacks.munch.documentation: \\n\
630 As reported by HAKMEM, in 1962, Jackson Wright wrote the above PDP-1 \
631 code. That code still lives on in this screenhack, some 35 years \
632 later. The number of lines of enclosing code has increased \
633 substantially, however. This version is by Tim Showalter.",
634 "*hacks.fadeplot.name: FadePlot",
635 "*hacks.fadeplot.documentation: \
636 Draws what looks like a waving ribbon following a sinusoidal path. \
637 Written by Bas van Gaalen and Charles Vidal.",
638 "*hacks.coral.documentation: \
639 Simulates coral growth, albeit somewhat slowly. This image doesn't \
640 really do it justice. Written by Frederick Roeber.",
641 "*hacks.mountain.documentation: \
642 Generates random 3d plots that look vaguely mountainous. Written by \
644 "*hacks.triangle.documentation: \
645 Generates random mountain ranges using iterative subdivision of \
646 triangles. Written by Tobias Gloth.",
647 "*hacks.worm.documentation: \
648 An ancient xlock hack that draws multicolored worms that crawl around \
649 the screen. Written by Brad Taylor, Dave Lemke, Boris Putanec, and \
651 "*hacks.rotor.documentation: \
652 Another ancient xlock demo, this one by Tom Lawrence. It draws a \
653 line segment moving along a complex spiraling curve. I tweaked this \
654 to generate curvier lines, but still frames of it don't look like \
656 "*hacks.ant.documentation: \
657 A cellular automaton that is really a two-dimensional Turing machine: \
658 as the heads (``ants'') walk along the screen, they change pixel \
659 values in their path. Then, as they pass over changed pixels, their \
660 behavior is influenced. Written by David Bagley.",
661 "*hacks.demon.documentation: \
662 A cellular automaton that starts with a random field, and organizes \
663 it into stripes and spirals. Written by David Bagley.",
664 "*hacks.loop.documentation: \
665 This one produces loop-shaped colonies that spawn, age, and \
666 eventually die. Written by David Bagley.",
667 "*hacks.vines.documentation: \
668 This one generates a continuous sequence of small, curvy geometric \
669 patterns. It scatters them around your screen until it fills up, \
670 then it clears the screen and starts over. Written by Tracy Camp and \
672 "*hacks.kaleidescope.documentation: \
673 Another clone of an ancient meme, consisting largely of frenetic \
674 rotational motion of colored lines. This one is by Ron Tapia. The \
675 motion is nice, but I think it needs more solids, or perhaps just \
676 brighter colors. More variations in the rotational speed might help, \
678 "*hacks.xjack.documentation: \
679 This program behaves schizophrenically and makes a lot of typos. \
680 Written by Jamie Zawinski. If you haven't seen Stanley Kubrick's \
681 masterpiece, ``The Shining,'' you won't get it. Those who have \
682 describe this hack as ``inspired.''",
683 "*hacks.xlyap.documentation: \
684 This generates pretty fractal pictures by doing funky math involving \
685 the ``Lyapunov exponent.'' It has a cool interactive mode, too. \
686 Written by Ron Record.",
687 "*hacks.cynosure.documentation: \
688 A hack similar to `greynetic', but less frenetic. The first \
689 implementation was by Stephen Linhart; then Ozymandias G. Desiderata \
690 wrote a Java applet clone. That clone was discovered by Jamie \
691 Zawinski, and ported to C for inclusion here.",
692 "*hacks.flow.documentation: \
693 Another series of strange attractors: a flowing series of points, \
694 making strange rotational shapes. Written by Jeff Butterworth.",
695 "*hacks.epicycle.documentation: \
696 This program draws the path traced out by a point on the edge of a \
697 circle. That circle rotates around a point on the rim of another \
698 circle, and so on, several times. These were the basis for the \
699 pre-heliocentric model of planetary motion. Written by James \
701 "*hacks.interference.documentation: \
702 Another color-field hack, this one works by computing decaying \
703 sinusoidal waves, and allowing them to interfere with each other as \
704 their origins move. Written by Hannu Mallat.",
705 "*hacks.truchet.documentation: \
706 This draws line- and arc-based Truchet patterns that tile the screen. \
707 Written by Adrian Likins.",
708 "*hacks.bsod.name: BSOD",
709 "*hacks.bsod.documentation: \
710 BSOD stands for ``Blue Screen of Death.'' The finest in personal \
711 computer emulation, this hack simulates popular screen savers from a \
712 number of less robust operating systems. Written by Jamie Zawinski.",
713 "*hacks.crystal.documentation: \
714 Moving polygons, similar to a kaleidescope (more like a kaleidescope \
715 than the hack called `kaleid,' actually.) This one by Jouk Jansen.",
716 "*hacks.discrete.documentation: \
717 More ``discrete map'' systems, including new variants of Hopalong and \
718 Julia, and a few others. Written by Tim Auckland.",
719 "*hacks.kumppa.documentation: \
720 Spiraling, spinning, and very, very fast splashes of color rush \
721 toward the screen. Written by Teemu Suutari.",
722 "*hacks.rd-bomb.name: RD-Bomb",
723 "*hacks.rd-bomb.documentation: \
724 Another variation of the `Bomb' program by Scott Draves. This draws \
725 a grid of growing square-like shapes that, once they overtake each \
726 other, react in unpredictable ways. ``RD'' stands for \
727 reaction-diffusion.",
728 "*hacks.sonar.documentation: \
729 This program draws a simulation of a sonar screen. Written by \
730 default, it displays a random assortment of ``bogies'' on the screen, \
731 but if compiled properly, it can ping (pun intended) your local \
732 network, and actually plot the proximity of the other hosts on your \
733 network to you. It would be easy to make it monitor other sources of \
734 data, too. (Processes? Active network connections? CPU usage per \
735 user?) Written by Stephen Martin.",
736 "*hacks.t3d.name: T3D",
737 "*hacks.t3d.documentation: \
738 This draws a working analog clock composed of floating, throbbing \
739 bubbles. Written by Bernd Paysan.",
740 "*hacks.penetrate.documentation: \
741 This hack simulates the classic arcade game Missile Command. Written \
743 "*hacks.deluxe.documentation: \
744 This draws a pulsing sequence of stars, circles, and lines. It would \
745 look better if it was faster, but as far as I can tell, there is no \
746 way to make this be both: fast, and flicker-free. Yet another reason \
747 X sucks. Written by Jamie Zawinski.",
748 "*hacks.compass.documentation: \
749 This draws a compass, with all elements spinning about randomly, for \
750 that ``lost and nauseous'' feeling. Written by Jamie Zawinski.",
751 "*hacks.squiral.documentation: \
752 Draws a set of interacting, square-spiral-producing automata. The \
753 spirals grow outward until they hit something, then they go around \
754 it. Written by Jeff Epler.",
755 "*hacks.xflame.documentation: \
756 Draws a simulation of pulsing fire. It can also take an arbitrary \
757 image and set it on fire too. Written by Carsten Haitzler, hacked on \
759 "*hacks.wander.documentation: \
760 Draws a colorful random-walk, in various forms. Written by Rick \
762 "*hacks.critical.documentation: \
763 Draws a system of self-organizing lines. It starts out as random \
764 squiggles, but after a few iterations, order begins to appear. \
765 Written by Martin Pool.",
766 "*hacks.phosphor.documentation: \
767 Draws a simulation of an old terminal, with large pixels and \
768 long-sustain phosphor. It can run any program as a source of the text \
769 it displays. Written by Jamie Zawinski.",
770 "*hacks.xmatrix.documentation: \
771 A rendition of the text scrolls seen in the movie ``The Matrix.'' \
772 Written by Jamie Zawinski.",
773 "*hacks.petri.documentation: \
774 This simulates colonies of mold growing in a petri dish. Growing \
775 colored circles overlap and leave spiral interference in their wake. \
776 Written by Dan Bornstein.",
777 "*hacks.shadebobs.name: ShadeBobs",
778 "*hacks.shadebobs.documentation: \
779 This draws smoothly-shaded oscilating oval patterns, that look \
780 something like vapor trails or neon tubes. Written by Shane Smit.",
781 "*hacks.ccurve.name: C Curve",
782 "*hacks.ccurve.documentation: \
783 Generates self-similar linear fractals, including the classic ``C \
784 Curve.'' Written by Rick Campbell.",
785 "*hacks.blaster.documentation: \
786 Draws a simulation of flying space-combat robots (cleverly disguised \
787 as colored circles) doing battle in front of a moving star field. \
788 Written by Jonathan Lin.",
789 "*hacks.bumps.documentation: \
790 A bit like `Spotlight', except that instead of merely exposing part \
791 of your desktop, it creates a bump map from it. Basically, it \
792 3D-izes a roaming section of your desktop, based on color intensity. \
793 Written by Shane Smit.",
794 "*hacks.xteevee.name: XTeeVee",
795 "*hacks.xteevee.documentation: \
796 XTeeVee simulates various television problems, including static, \
797 loss of vertical hold, and a test pattern. By Greg Knauss.",
798 "*hacks.xspirograph.name: XSpiroGraph",
799 "*hacks.xspirograph.documentation: \
800 Simulates that pen-in-nested-plastic-gears toy from your childhood. \
802 "*hacks.nerverot.name: NerveRot",
803 "*hacks.nerverot.documentation: \
804 Draws a rolling tube, composed of nervously vibrating squiggles. \
806 "*hacks.webcollage.name: WebCollage",
807 "*hacks.webcollage.documentation: \
808 This program makes collages out of random images pulled off of the \
809 World Wide Web. It finds these images by doing random web searches, \
810 and then extracting images from the returned pages. It can also be \
811 set up to filter the images through the `VidWhacker' program, above, \
812 which looks really great. \
814 (Note that most of the images it finds are text, and not pictures. \
815 This is because most of the web is pictures of text. Which is pretty \
816 sad.) Written by Jamie Zawinski.",
817 "*hacks.vidwhacker.name: VidWhacker",
818 "*hacks.vidwhacker.documentation: \
819 This is actually just a shell script that grabs a frame of video from \
820 the system's video input, and then uses some PBM filters (chosen at \
821 random) to manipulate and recombine the video frame in various ways \
822 (edge detection, subtracting the image from a rotated version of \
823 itself, etc.) Then it displays that image for a few seconds, and \
824 does it again. This works really well if you just feed broadcast \
825 television into it. \
827 Currently, the three lines of the script that actually grab the \
828 source picture are SGI specific, but it should be trivial to adapt it \
829 to work on other systems that can grab video (please send me the \
830 changes if you do this...)",
831 "*hacks.rocks.documentation: \
832 This draws an animation of flight through an asteroid field, with \
833 changes in rotation and direction. It can also display 3D \
834 separations for red/blue glasses! Mostly written by Jamie Zawinski.",
835 "*hacks.bubbles.documentation: \
836 This simulates the kind of bubble formation that happens when water \
837 boils:small bubbles appear, and as they get closer to each other, \
838 they combine to form larger bubbles, which eventually pop. Written \
840 "*hacks.gears.documentation: \
841 This draws a set of turning, interlocking gears, rotating in three \
842 dimensions. Another GL hack, by Danny Sung, Brian Paul, and Ed \
844 "*hacks.superquadrics.documentation: \
845 Ed Mackey reports that he wrote the first version of this program in \
846 BASIC on a Commodore 64 in 1987, as a 320x200 black and white \
847 wireframe. Now it is GL and has specular reflections.",
848 "*hacks.morph3d.name: Morph3D",
849 "*hacks.morph3d.documentation: \
850 Another 3d shape-changing GL hack, by Marcelo Vianna. It has the \
851 same shiny-plastic feel as Superquadrics, as many computer-generated \
853 "*hacks.cage.documentation: \
854 This draws Escher's ``Impossible Cage,'' a 3d analog of a moebius \
855 strip, and rotates it in three dimensions. Written by Marcelo \
857 "*hacks.moebius.documentation: \
858 Another M. C. Escher hack by Marcelo Vianna, this one draws \
859 ``Moebius Strip II,'' a GL image of ants walking along the surface of \
861 "*hacks.stairs.documentation: \
862 by Marcelo Vianna's third Escher GL hack, this one draws an \
863 ``infinite'' staircase.",
864 "*hacks.pipes.documentation: \
865 If you've ever been in the same room with a Windows NT machine, \
866 you've probably seen this GL hack. This version is by Marcelo \
868 "*hacks.sproingies.documentation: \
869 Q-Bert meets Marble Madness! Written by Ed Mackey.",
870 "*hacks.rubik.documentation: \
871 Draws a Rubik's Cube that rotates in three dimensions and repeatedly \
872 shuffles and solves itself. Another fine GL hack by Marcelo Vianna.",
873 "*hacks.atlantis.documentation: \
874 This is xfishtank writ large: a GL animation of a number of sharks, \
875 dolphins, and whales. The swimming motions are great. Originally \
876 written by Mark Kilgard.",
877 "*hacks.lament.documentation: \
878 Animates a simulation of Lemarchand's Box, repeatedly solving itself. \
879 Requires OpenGL, and a machine with fast hardware support for texture \
880 maps. Warning: occasionally opens doors. Written by Jamie Zawinski.",
881 "*hacks.bubble3d.name: Bubble3D",
882 "*hacks.bubble3d.documentation: \
883 Draws a stream of rising, undulating 3D bubbles, rising toward the \
884 top of the screen, with nice specular reflections. Written by Richard \
886 "*hacks.glplanet.name: GLPlanet",
887 "*hacks.glplanet.documentation: \
888 Draws a planet bouncing around in space. Written by David Konerding. \
889 The built-in image is a map of the earth (extracted from `xearth'), \
890 but you can wrap any texture around the sphere, e.g., the planetary \
891 textures that come with `ssystem'.",
892 "*hacks.pulsar.documentation: \
893 Draws some intersecting planes, making use of alpha blending, fog, \
894 textures, and mipmaps, plus a ``frames per second'' meter so that you \
895 can tell how fast your graphics card is... Requires OpenGL. Written \
896 by David Konerding.",
897 "*hacks.extrusion.documentation: \
898 Draws various rotating extruded shapes that twist around, lengthen, \
899 and turn inside out. Created by David Konerding from the samples \
900 that come with the GL Extrusion library by Linas Vepstas.",
901 "*hacks.sierpinski3d.name: Sierpinski3D",
902 "*hacks.sierpinski3d.documentation: \
903 This draws the three-dimensional variant of the recursive Sierpinski \
904 triangle fractal, using GL. Written by Tim Robinson and Jamie Zawinski.",
905 "*hacks.ripples.documentation: \
906 This draws rippling interference patterns like splashing water. \
907 With the -water option, it manipulates your desktop image to look \
908 like something is dripping into it. Written by Tom Hammersley.",
909 "*hacks.gflux.name: GFlux",
910 "*hacks.gflux.documentation: \
911 Draws a rippling waves on a rotating wireframe grid, using GL. \
912 Written by Josiah Pease.",
913 "*hacks.xrayswarm.name: XRaySwarm",
914 "*hacks.xrayswarm.documentation: \
915 Draws a few swarms of critters flying around the screen, with nicely \
916 faded color trails behind them. Written by Chris Leger.",
917 "*hacks.xdaliclock.name: XDaliClock",
918 "*hacks.xdaliclock.documentation: \
919 XDaliClock draws a large digital clock, the numbers of which change by \
920 ``melting'' into their new shapes. Written by Jamie Zawinski. This \
921 is not included with the XScreenSaver package, but if you don't have \
922 it already, you can find it at <http://www.jwz.org/xdaliclock/>.",
923 "*hacks.xearth.documentation: \
924 XEarth draws an image of the Earth, as seen from your favorite vantage \
925 point in space, correctly shaded for the current position of the Sun. \
926 Written by Kirk Johnson. This is not included with the XScreenSaver \
927 package, but if you don't have it already, you can find it at \
928 <http://www.cs.colorado.edu/~tuna/xearth/>.",
929 "*hacks.ssystem.name: SSystem",
930 "*hacks.ssystem.documentation: \
931 SSystem is a GL Solar System simulator. It simulates flybys of Sun, \
932 the nine planets and a few major satellites, with four camera modes. \
933 Written by Raul Alonso. This is not included with the XScreenSaver \
934 package, but if you don't have it already, you can find it at \
935 <http://www1.las.es/~amil/ssystem/>.",
936 "*hacks.xmountains.documentation: \
937 XMountains generates realistic-looking fractal terrains of snow-capped \
938 mountains near water, with either a top view or a side view. \
939 Written by Stephen Booth. This is not included with the XScreenSaver \
940 package, but if you don't have it already, you can find it at \
941 <http://www.epcc.ed.ac.uk/~spb/xmountains/>. \
943 Be sure to compile it with -DVROOT or it won't work right when launched \
944 by the xscreensaver daemon.",
945 "*hacks.xaos.name: XaoS",
946 "*hacks.xaos.documentation: \
947 XaoS generates fast fly-through animations of the Mandelbrot and other \
948 fractal sets. Written by Thomas Marsh and Jan Hubicka. This is not \
949 included with the XScreenSaver package, but if you don't have it \
950 already, you can find it at <http://limax.paru.cas.cz/~hubicka/XaoS/>.",
951 "*hacks.xfishtank.name: XFishTank",
952 "*hacks.xfishtank.documentation: \
953 Fish! This is not included with the XScreenSaver package, but if you \
954 don't have it already, you can find it at \
955 <http://metalab.unc.edu/pub/Linux/X11/demos/>.",
956 "*hacks.xsnow.documentation: \
957 Draws falling snow and the occasional tiny Santa. By Rick Jansen. \
958 You can find it at <http://www.euronet.nl/~rja/Xsnow/>.",
959 "*hacks.goban.documentation: \
960 Replays historical games of go (aka wei-chi and baduk) on the screen. \
961 By Scott Draves. You can find it at <http://www.draves.org/goban/>.",
962 "*hacks.electricsheep.name: ElectricSheep",
963 "*hacks.electricsheep.documentation: \
964 ElectricSheep is an xscreensaver module that displays mpeg video of \
965 an animated fractal flame. In the background, it contributes render \
966 cycles to the next animation. Periodically it uploades completed \
967 frames to the server, where they are compressed for distribution to \
970 This program is recommended only if you have a high bandwidth \
971 connection to the Internet. \
973 By Scott Draves. You can find it at <http://www.electricsheep.org/>. \
974 See that web site for configuration information.",
projects / xscreensaver / blob