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.TH XScreenSaver 1 "" "X Version 11"
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glslideshow - slideshow of images using smooth zooming and fades
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[\-display \fIhost:display.screen\fP]
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[\-visual \fIvisual\fP]
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[\-duration \fIseconds\fP]
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[\-zoom \fIpercent\fP]
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[\-fade \fIseconds\fP]
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[\-letterbox | \-clip]
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Loads a random sequence of images and smoothly scans and zooms around
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in each, fading from pan to pan.
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This program requires a good video card capable of supporting large
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To specify the directory that images are loaded from, run
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.BR xscreensaver-demo (1)
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and click on the "Advanced" tab.
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.B \-visual \fIvisual\fP
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Specify which visual to use. Legal values are the name of a visual class,
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or the id number (decimal or hex) of a specific visual.
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Draw on a newly-created window. This is the default.
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Draw on the root window.
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.B \-duration \fIseconds\fP
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How long each image will be displayed before loading a new one.
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.B \-pan \fIseconds\fP
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How long each pan-and-zoom should last. Default 6 seconds.
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With the default settings of \fI\-pan 6 \-duration 30\fP, each image
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will be displayed five times (30/6), and then a new image will be loaded.
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If you want a new image to be loaded at each fade, then set \fI\-pan\fP
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and \fI\-duration\fP to the same value.
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.B \-fade \fIseconds\fP
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How long each cross-fade between images should last. Default 2 seconds.
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If set to 0, then no cross-fading will be done (all transitions
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Note that fades are included in the pan time, so \fI\-fade\fP cannot
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be larger than \fI\-pan\fP.
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.B \-zoom \fInumber\fP
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Amount to zoom and pan as a percentage. Default: 75, meaning that
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75% or more of each image will always be visible. If set to 100%,
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then the images will always fill the screen, and no panning or
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zooming will occur. (Images will still smoothly fade from one
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to another if \fI\-fade\fP is non-zero.)
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Whether to print the file name of the current image in the upper left corner.
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In "letterbox" mode, when an image is not the same aspect ratio as the screen,
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black bars will appear at the top/bottom or left/right so that the whole
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image can be displayed. This is the default.
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In "clip" mode, when an image is not the same aspect ratio as the screen,
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we will zoom in further until the image takes up the whole screen.
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This is the opposite of \fI\-letterbox\fP.
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.B \-delay \fInumber\fP
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Per-frame delay, in microseconds. Default: 20000 (0.02 seconds.).
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Whether to show a frames-per-second display at the bottom of the screen.
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.B \-cutoff \fInumber\fP
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If the frame rate we are achieving is lower than this, then panning,
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fading, and zooming will be disabled. Default 5 FPS.
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The idea here is that if your machine can't maintain a decent frame
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rate, then it must not have fast 3D hardware, so we might as well
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behave in a simpler manner. Set this to 0 to disable this check.
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Prints debugging info to stderr.
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to get the default host and display number.
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to get the name of a resource file that overrides the global resources
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stored in the RESOURCE_MANAGER property.
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.BR xscreensaver-demo (1),
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.BR xscreensaver-getimage (1),
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.BR xscreensaver (1),
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Copyright \(co 2003-2005 by Jamie Zawinski, based on an earlier version
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Copyright \(co 2002 by Mike Oliphant.
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Permission to use, copy, modify, distribute, and sell this software and
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its documentation for any purpose is hereby granted without fee,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation. No representations are made about the
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suitability of this software for any purpose. It is provided "as is"
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without express or implied warranty.
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Jamie Zawinski and Mike Oliphant.
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hacks/glx/glslideshow.man
