crystal(6)

crystal6

Kaleidescope.

Usage

crystal [--display host:display.screen] [--visual visual] [--window] [--root] [--window-id number] [--grid] [--no-cell] [--centre] [--nx number] [--ny number] [--count number] [--delay number] [--ncolors number] [--fps]

Overview

Moving polygons, similar to a kaleidescope (more like a kaleidescope than the hack called `kaleid,' actually.)

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.

--grid | --no-grid

Whether to draw grid.

--cell | --no-cell

Whether to draw the cell.

--centre | --no-centre

Whether to center on screen

--nx number

Horizontal Symmetries. -10 - 10. Default: -3.

--ny number

Vertical Symmetries. -10 - 10. Default: -3.

--count number

Count. -5000 - 5000. Default: -500.

--delay number

Per-frame delay, in microseconds. Default: 60000 (0.06 seconds.).

--ncolors number

Number of Colors. Default: 100.

--fps

Display the current frame rate and CPU load.

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.

Author

Jouk Jansen.

From xscreensaver 6.15-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.