NAME

       surfaces - Draws some interesting 3d parametric surfaces.

SYNOPSIS

       surfaces   [--display   host:display.screen]   [--visual   visual]   [--window]   [--root]
       [--window-id number] [--speed number]  [--rand]  [--spin]  [--wander]  [--fps]  [--surface
       surface-name]  [--random-surface]  [--dini]  [--enneper] [--kuen] [--moebius] [--seashell]
       [--swallowtail]   [--bohemian]   [--whitney]   [--pluecker]   [--henneberg]    [--catalan]
       [--corkscrew] [--mode display-mode] [--random-mode] [--points] [--lines] [--line-loops]

DESCRIPTION

       This draws one of several three dimensional parametric surfaces.

OPTIONS

       --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.

       --window-id number
               Draw on the specified window.

       --delay number
               Per-frame delay, in microseconds.  Default: 20000 (0.02 seconds.).

       --speed number
               Number of frames before changing shape.  Default: 1000.

       --surface random (Shortcut: --random-surface)
               Display a random surface.  This is the default.

       --surface dini (Shortcut: --dini)
               Display Dini's surface.

       --surface enneper (Shortcut: --enneper)
               Display Enneper's minimal surface.

       --surface kuen (Shortcut: --kuen)
               Display the Kuen surface.

       --surface moebius (Shortcut: --moebius)
               Display the Moebius strip.

       --surface seashell (Shortcut: --seashell)
               Display the seashell surface.

       --surface swallowtail (Shortcut: --swallowtail)
               Display the swallowtail catastrophe.

       --surface bohemian (Shortcut: --bohemian)
               Display the Bohemian dome.

       --surface whitney (Shortcut: --whitney)
               Display the Whitney umbrella.

       --surface pluecker (Shortcut: --pluecker)
               Display Pluecker's conoid.

       --surface henneberg (Shortcut: --henneberg)
               Display Henneberg's minimal surface.

       --surface catalan (Shortcut: --catalan)
               Display Catalan's minimal surface.

       --surface corkscrew (Shortcut: --corkscrew)
               Display the corkscrew surface.

       --mode random (Shortcut: --random-mode)
               Use random OpenGL primitives to display the surface.  This is the default.

       --mode points (Shortcut: --points)
               Use OpenGL points to display the surface.

       --mode lines (Shortcut: --lines)
               Use OpenGL lines to display the surface.

       --mode line-loops (Shortcut: --line-loops)
               Use OpenGL line loops to display the surface.

       --wander | --no-wander
               Whether to wander around the screen.

       --spin | --no-spin
               Whether to rotate around the center of the figure.

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

ENVIRONMENT

       DISPLAY to get the default host and display number.

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

       XSCREENSAVER_WINDOW
               The window ID to use with --root.

SEE ALSO

       X(1), xscreensaver(1)

AUTHORS

       Andrey Mirtchovski, Carsten Steger