rocks6

Usage

Overview

The rocks program draws an animation of an asteroid field moving past the observer (or vice versa). Sometimes the observer picks up spin on Z axis.

Options

rocks accepts the following options:

--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.

--mono

Make all the rocks the same color.

--ncolors colors

How many different colors to use. Default 5. Colors are chosen randomly.

--install

Install a private colormap for the window.

--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.

--count integer

Maximum number of rocks to draw on the screen at once. Default 100.

--speed integer

A measure of the speed with which the observer and the rocks pass each other, from 1 to 100. Default 100, meaning ``very fast.'' If you're on a slow display connection (the animation looks jerky) then try making this number smaller, and/or decreasing the number of rocks.

--delay microseconds

Number of microseconds to delay between each frame. Default 50000, meaning about 1/20th second. Compare and contrast with --speed, above.

--norotate

Don't rotate the observer; just fly through the field on the level.

--nomove

Don't turn the observer; just fly straight ahead through the field.

-3d

Do red/blue 3d separations: if you look at the screen with 3d glasses, the rocks will be jumping right out at you. Oooooh, scaaary!

--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.