1glslideshow(6x) XScreenSaver manual glslideshow(6x)
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6 glslideshow - slideshow of images using smooth zooming and fades
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9 glslideshow [-display host:display.screen] [-visual visual] [-window]
10 [-root] [-duration seconds] [-zoom percent] [-pan seconds] [-fade sec‐
11 onds] [-titles] [-letterbox | -clip] [-delay usecs] [-fps] [-debug]
12 [-wireframe] [-cutoff int]
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15 Loads a random sequence of images and smoothly scans and zooms around
16 in each, fading from pan to pan.
17 This program requires a good video card capable of supporting large
19 textures.
20 To specify the directory that images are loaded from, run xscreensaver-
22 demo(1) and click on the "Advanced" tab.
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25 -visual visual
26 Specify which visual to use. Legal values are the name of a
27 visual class, or the id number (decimal or hex) of a specific
28 visual.
29 -window Draw on a newly-created window. This is the default.
31 -root Draw on the root window.
33 -duration seconds
35 How long each image will be displayed before loading a new one.
36 Default 30 seconds.
37 -pan seconds
39 How long each pan-and-zoom should last. Default 6 seconds.
40 With the default settings of -pan 6 -duration 30, each image
42 will be displayed five times (30/6), and then a new image will
43 be loaded. If you want a new image to be loaded at each fade,
44 then set -pan and -duration to the same value.
45 -fade seconds
47 How long each cross-fade between images should last. Default 2
48 seconds. If set to 0, then no cross-fading will be done (all
49 transitions will be jump-cuts.)
50 Note that fades are included in the pan time, so -fade cannot
52 be larger than -pan.
53 -zoom number
55 Amount to zoom and pan as a percentage. Default: 75, meaning
56 that 75% or more of each image will always be visible. If set
57 to 100%, then the images will always fill the screen, and no
58 panning or zooming will occur. (Images will still smoothly
59 fade from one to another if -fade is non-zero.)
60 -titles Whether to print the file name of the current image in the
62 upper left corner.
63 -letterbox
65 In "letterbox" mode, when an image is not the same aspect ratio
66 as the screen, black bars will appear at the top/bottom or
67 left/right so that the whole image can be displayed. This is
68 the default.
69 -clip In "clip" mode, when an image is not the same aspect ratio as
71 the screen, we will zoom in further until the image takes up
72 the whole screen. This is the opposite of -letterbox.
73 -delay number
75 Per-frame delay, in microseconds. Default: 20000 (0.02 sec‐
76 onds.).
77 -fps Whether to show a frames-per-second display at the bottom of
79 the screen.
80 -cutoff number
82 If the frame rate we are achieving is lower than this, then
83 panning, fading, and zooming will be disabled. Default 5 FPS.
84 The idea here is that if your machine can't maintain a decent
86 frame rate, then it must not have fast 3D hardware, so we might
87 as well behave in a simpler manner. Set this to 0 to disable
88 this check.
89 -debug Prints debugging info to stderr.
91 -wireframe
93 Another debug mode.
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96 DISPLAY to get the default host and display number.
97 XENVIRONMENT
99 to get the name of a resource file that overrides the global
100 resources stored in the RESOURCE_MANAGER property.
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103 X(1), xscreensaver-demo(1), xscreensaver-getimage(1), xscreensaver(1),
104 carousel(6x)
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107 Copyright © 2003-2005 by Jamie Zawinski, based on an earlier version
108 that was Copyright © 2002 by Mike Oliphant.
109 Permission to use, copy, modify, distribute, and sell this software and
111 its documentation for any purpose is hereby granted without fee, pro‐
112 vided that the above copyright notice appear in all copies and that
113 both that copyright notice and this permission notice appear in sup‐
114 porting documentation. No representations are made about the suitabil‐
115 ity of this software for any purpose. It is provided "as is" without
116 express or implied warranty.
117
119 Jamie Zawinski and Mike Oliphant.
120X Version 11 5.05-3 (06-Apr-2008) glslideshow(6x)