1 .TH XScreenSaver 1 "17-Jun-99" "X Version 11"
3 vidwhacker - grab images and apply random filters to them
6 [\-display \fIhost:display.screen\fP] [\-root] [\-window] [\-verbose] [\-stdin] [\-stdout] [\-delay seconds]
8 The \fIvidwhacker\fP program grabs a image from the system's video input,
9 applies random image filters to it, and displays the result.
10 The \fIvidwhacker\fP program does not terminate until killed.
13 and the various PBM tools
18 accepts the following options:
21 Draw on the root window.
24 Pop up a new window displaying the image. When a new image has been fully
25 processed, destroy that window and pop up a new one. This is the default.
31 Instead of grabbing an image from the system's video input, read an image
32 to maniupulate from stdin. This image must be in
34 .B \-delay \fIseconds\fP
35 How long to sleep between images. Default 3 seconds (the actual
36 elapsed time is significantly longer, due to processing time.)
38 format. The program will still perform repeated random image
39 transformations, but it will always use this one image as its starting point.
42 Instead of displaying the image on a window or on the root, write the new
43 image on stdout, and exit.
48 to get the default host and display number.
51 to get the name of a resource file that overrides the global resources
52 stored in the RESOURCE_MANAGER property.
54 Grabbing video images is, of course, very system-dependent. It works
55 on SGIs, and on Linux systems that have the
57 program. If your system does things differently, you'll need to edit
58 the vidwhacker script (look for the \fIgrab()\fP function.)
62 It might be interesting to rewrite this to use
64 plugins instead of the pbm tools. It probably wouldn't be any faster,
65 but there would be a wider variety of effects available.
73 Copyright \(co 1998, 1999 by Jamie Zawinski. Permission to use, copy, modify,
74 distribute, and sell this software and its documentation for any purpose is
75 hereby granted without fee, provided that the above copyright notice appear
76 in all copies and that both that copyright notice and this permission notice
77 appear in supporting documentation. No representations are made about the
78 suitability of this software for any purpose. It is provided "as is" without
79 express or implied warranty.
81 Jamie Zawinski <jwz@jwz.org>, 18-Jan-98.