1rocks(6x) XScreenSaver manual rocks(6x)
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6 rocks - animation of flying through an asteroid field
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9 rocks [-display host:display.screen] [-foreground color] [-background
10 color] [-window] [-root] [-mono] [-ncolors n] [-install] [-visual vis‐
11 ual] [-count integer] [-delay usecs] [-speed integer] [-norotate]
12 [-nomove] [-3d] [-fps]
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15 The rocks program draws an animation of an asteroid field moving past
16 the observer (or vice versa). Sometimes the observer picks up spin on
17 Z axis.
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20 rocks accepts the following options:
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22 -window Draw on a newly-created window. This is the default.
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24 -root Draw on the root window.
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26 -mono Make all the rocks the same color.
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28 -ncolors colors
29 How many different colors to use. Default 5. Colors are cho‐
30 sen randomly.
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32 -install
33 Install a private colormap for the window.
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35 -visual visual
36 Specify which visual to use. Legal values are the name of a
37 visual class, or the id number (decimal or hex) of a specific
38 visual.
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40 -count integer
41 Maximum number of rocks to draw on the screen at once. Default
42 100.
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44 -speed integer
45 A measure of the speed with which the observer and the rocks
46 pass each other, from 1 to 100. Default 100, meaning ``very
47 fast.'' If you're on a slow display connection (the animation
48 looks jerky) then try making this number smaller, and/or de‐
49 creasing the number of rocks.
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51 -delay microseconds
52 Number of microseconds to delay between each frame. Default
53 50000, meaning about 1/20th second. Compare and contrast with
54 -speed, above.
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56 -norotate
57 Don't rotate the observer; just fly through the field on the
58 level.
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60 -nomove Don't turn the observer; just fly straight ahead through the
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63 -3d Do red/blue 3d separations: if you look at the screen with 3d
64 glasses, the rocks will be jumping right out at you. Oooooh,
65 scaaary!
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67 -fps Display the current frame rate and CPU load.
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70 DISPLAY to get the default host and display number.
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72 XENVIRONMENT
73 to get the name of a resource file that overrides the global
74 resources stored in the RESOURCE_MANAGER property.
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77 X(1), xscreensaver(1)
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80 There should be an option to display doppler shift (a gravity rainbow.)
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82 Speed of rotation should be settable.
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84 Default speed of rotation should be relative to forward velocity.
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87 Copyright © 1992 by Jamie Zawinski. Permission to use, copy, modify,
88 distribute, and sell this software and its documentation for any pur‐
89 pose is hereby granted without fee, provided that the above copyright
90 notice appear in all copies and that both that copyright notice and
91 this permission notice appear in supporting documentation. No repre‐
92 sentations are made about the suitability of this software for any pur‐
93 pose. It is provided "as is" without express or implied warranty.
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96 Based on Lisp Machine code copyright 1988 John Nguyen
97 <johnn@hx.lcs.mit.edu>.
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99 Ported to C and X by Jamie Zawinski <jwz@jwz.org>, 13-aug-92.
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101 Steering code by Jeremie Petit; 3D code by theiling@coli.uni-sb.de.
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105X Version 11 6.02-4.fc35 (09-Nov-2021) rocks(6x)