Provided by: xscreensaver-gl-extra_5.34-2ubuntu1_amd64 bug


       extrusion - various rotating extruded shapes.


       extrusion  [-display  host:display.screen]  [-visual  visual]  [-window]  [-root]  [-delay
       number] [-name which] [-no-light] [-wireframe] [-fps]


       Draws various rotating extruded shapes that twist around, lengthen, and turn inside out.


       -visual visual
               Specify which visual to use.  Legal values are the name of a visual class, or  the
               id number (decimal or hex) of a specific visual.

       -window Draw on a newly-created window.  This is the default.

       -root   Draw on the root window.

       -delay number
               Per-frame delay, in microseconds.  Default: 10000 (0.01 seconds.).

       -name which
               Which  object  to  draw.   Choices are: helix2, helix3, helix4, joinoffset, screw,
               taper, and twistoid.

       -light | -no-light
               Whether to light the scene, or use flat coloring.

       -bitmap file
               The texture map to use.

               Render in wireframe instead of solid.

       -fps    Display the current frame rate, CPU load, and polygon count.


       DISPLAY to get the default host and display number.

               to get the name of a resource file that overrides the global resources  stored  in
               the RESOURCE_MANAGER property.


       X(1), xscreensaver(1)


       Copyright  ©  2002 by Linas Vepstas and David Konerding.  Permission to use, copy, modify,
       distribute, and sell this software and its documentation for any purpose is hereby granted
       without  fee,  provided that the above copyright notice appear in all copies and that both
       that copyright notice and this permission notice appear in supporting  documentation.   No
       representations  are  made  about the suitability of this software for any purpose.  It is
       provided "as is" without express or implied warranty.


       This screensaver was created by David Konerding from the samples that  come  with  the  GL
       Extrusion library by Linas Vepstas.