1glslideshow(6x)               XScreenSaver manual              glslideshow(6x)
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NAME

6       glslideshow - slideshow of images using smooth zooming and fades
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SYNOPSIS

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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DESCRIPTION

15       Loads a random sequence of images and smoothly scans and  zooms  around
16       in each, fading from pan to pan.
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18       This  program  requires  a  good video card capable of supporting large
19       textures.
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21       To specify the directory that images  are  loaded  from,  run  xscreen‐
22       saver-settings(1) and click on the "Advanced" tab.
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OPTIONS

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.
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30       -window Draw on a newly-created window.  This is the default.
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32       -root   Draw on the root window.
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34       -duration seconds
35               How long each image will be displayed before loading a new one.
36               Default 30 seconds.
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38       -pan seconds
39               How long each pan-and-zoom should last.  Default 6 seconds.
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41               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.
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46       -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.)
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51               Note  that  fades are included in the pan time, so -fade cannot
52               be larger than -pan.
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54       -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.)
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61       -titles Whether to print the file name of the current image in the  up‐
62               per left corner.
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64       -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.
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70       -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.
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74       -delay number
75               Per-frame delay, in microseconds.  Default:  20000  (0.02  sec‐
76               onds.).
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78       -fps    Display the current frame rate, CPU load, and polygon count.
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80       -cutoff number
81               If  the  frame  rate  we are achieving is lower than this, then
82               panning, fading, and zooming will be disabled.  Default 5 FPS.
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84               The idea here is that if your machine can't maintain  a  decent
85               frame rate, then it must not have fast 3D hardware, so we might
86               as well behave in a simpler manner.  Set this to 0  to  disable
87               this check.
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89       -debug  Prints debugging info to stderr.
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91       -wireframe
92               Another debug mode.
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ENVIRONMENT

95       DISPLAY to get the default host and display number.
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97       XENVIRONMENT
98               to  get  the  name of a resource file that overrides the global
99               resources stored in the RESOURCE_MANAGER property.
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SEE ALSO

102       X(1),  xscreensaver-settings(1),  xscreensaver-getimage(6x),   xscreen‐
103       saver(1), carousel(6x) photopile(6x)
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106       Copyright  ©  2003-2005  by Jamie Zawinski, based on an earlier version
107       that was Copyright © 2002 by Mike Oliphant.
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109       Permission to use, copy, modify, distribute, and sell this software and
110       its  documentation  for any purpose is hereby granted without fee, pro‐
111       vided that the above copyright notice appear in  all  copies  and  that
112       both  that  copyright  notice and this permission notice appear in sup‐
113       porting documentation.  No representations are made about the suitabil‐
114       ity  of  this software for any purpose.  It is provided "as is" without
115       express or implied warranty.
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AUTHOR

118       Jamie Zawinski and Mike Oliphant.
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122X Version 11               6.02-4.fc35 (09-Nov-2021)           glslideshow(6x)
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