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NAME

       surfaces - Draws some interesting 3d parametric surfaces.

SYNOPSIS

       surfaces  [-display  host:display.screen]  [-visual  visual]  [-window]
       [-root] [-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.

       -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.

SEE ALSO

       X(1), xscreensaver(1)

AUTHORS

       Andrey Mirtchovski, Carsten Steger