1glblur(6x) XScreenSaver manual glblur(6x)
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6 glblur - 3D radial blur texture fields
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9 glblur [-display host:display.screen] [-visual visual] [-window]
10 [-root] [-delay number] [-blursize number] [-no-wander] [-no-spin]
11 [-spin [XYZ]] [-fps]
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14 This program draws a box and a few line segments, and generates a
15 radial blur outward from it. This creates flowing field effects.
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17 This is done by rendering the scene into a small texture, then repeat‐
18 edly rendering increasingly-enlarged and increasingly-transparent ver‐
19 sions of that texture onto the frame buffer. As such, it's quite
20 graphics intensive: don't bother trying to run this if you don't have
21 hardware-accelerated texture support. It will hurt your machine bad.
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24 -visual visual
25 Specify which visual to use. Legal values are the name of a
26 visual class, or the id number (decimal or hex) of a specific
27 visual.
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29 -window Draw on a newly-created window. This is the default.
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31 -root Draw on the root window.
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33 -delay number
34 Per-frame delay, in microseconds. Default: 10000 (0.01 sec‐
35 onds.).
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37 -blursize number
38 How many copies of the scene should be laid down to make the
39 vapor trail. Default: 15. Larger numbers create smoother
40 fields, but are slower.
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42 -wander | -no-wander
43 Whether the object should wander around the screen.
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45 -spin [XYZ]
46 Around which axes should the object spin?
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48 -no-spin
49 None.
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51 -fps Display the current frame rate, CPU load, and polygon count.
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54 DISPLAY to get the default host and display number.
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56 XENVIRONMENT
57 to get the name of a resource file that overrides the global
58 resources stored in the RESOURCE_MANAGER property.
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61 X(1), xscreensaver(1)
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64 Copyright © 2002 by Jamie Zawinski. Permission to use, copy, modify,
65 distribute, and sell this software and its documentation for any pur‐
66 pose is hereby granted without fee, provided that the above copyright
67 notice appear in all copies and that both that copyright notice and
68 this permission notice appear in supporting documentation. No repre‐
69 sentations are made about the suitability of this software for any pur‐
70 pose. It is provided "as is" without express or implied warranty.
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73 Jamie Zawinski, with inspiration from a tutorial by Dario Corno.
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77X Version 11 5.42-1.fc30.2 (03-Feb-2019) glblur(6x)