1 .TH XScreenSaver 1 "" "X Version 11"
3 glslideshow - slideshow of images using smooth zooming and fades
6 [\-display \fIhost:display.screen\fP]
7 [\-visual \fIvisual\fP]
10 [\-duration \fIseconds\fP]
11 [\-zoom \fIpercent\fP]
13 [\-fade \fIseconds\fP]
22 Loads a random sequence of images and smoothly scans and zooms around
23 in each, fading from pan to pan.
25 This program requires a good video card capable of supporting large
28 To specify the directory that images are loaded from, run
29 .BR xscreensaver-demo (1)
30 and click on the "Advanced" tab.
33 .B \-visual \fIvisual\fP
34 Specify which visual to use. Legal values are the name of a visual class,
35 or the id number (decimal or hex) of a specific visual.
38 Draw on a newly-created window. This is the default.
41 Draw on the root window.
43 .B \-duration \fIseconds\fP
44 How long each image will be displayed before loading a new one.
47 .B \-pan \fIseconds\fP
48 How long each pan should last. Default 6 seconds.
50 .B \-fade \fIseconds\fP
51 How long each fade (in and out) should last. Default 2 seconds.
52 If set to 0, then no cross-fading will be done (all transitions
55 Note that fades are included in the pan, so \fI\-pan\fP should
56 always be longer than \fI\-fade\fP (it is auto-corrected if not.)
58 .B \-zoom \fInumber\fP
59 Amount to zoom and pan as a percentage. Default: 75, meaning that
60 75% or more of each image will always be visible. If set to 100%,
61 then the images will always fill the screen, and no panning or
62 zooming will occur. Images will still smoothly fade from one
63 to another, however, assuming \fI\-fade\fP is non-zero.
65 .B \-speed \fIfloat\fP
66 Speed up or slow down. 2 means twice as fast; 0.5 means half as fast.
68 .B \-delay \fInumber\fP
69 Per-frame delay, in microseconds. Default: 20000 (0.02 seconds.).
71 .B \-cutoff \fInumber\fP
72 If the frame rate drops below this number of frames per second, then
73 certain features will be turned off automatically (first zooming,
74 then, if the low frame rates persist, fading.) Default 5.
76 The idea here is that if your machine can't maintain a decent frame
77 rate, then it must not have fast 3D hardware, so we might as well
78 behave in a simpler manner. Set this to 0 to disable this check.
81 Whether to print the file name of the current image in the upper left corner.
84 Whether to show a frames-per-second display at the bottom of the screen.
87 Prints debugging info to stderr.
90 Instead of loading images, simply animates representative grids instead.
95 to get the default host and display number.
98 to get the name of a resource file that overrides the global resources
99 stored in the RESOURCE_MANAGER property.
102 .BR xscreensaver-demo (1)
103 .BR xscreensaver-getimage (1)
106 Copyright \(co 2003 by Jamie Zawinski, based on an earlier version that was
107 Copyright \(co 2002 by Mike Oliphant. Originally derived from
108 .BR flipscreen3d (1) ,
109 which was Copyright \(co 2001 Ben Buxton.
111 Permission to use, copy, modify, distribute, and sell this software and
112 its documentation for any purpose is hereby granted without fee,
113 provided that the above copyright notice appear in all copies and that
114 both that copyright notice and this permission notice appear in
115 supporting documentation. No representations are made about the
116 suitability of this software for any purpose. It is provided "as is"
117 without express or implied warranty.
119 Jamie Zawinski and Mike Oliphant.