goop man page

goop — squishy transparent oil and bubble screenhack

Synopsis

goop [-display host:display.screen] [-foreground color] [-background color] [-window] [-root] [-mono] [-install] [-visual visual] [-transparent] [-non-transparent] [-additive] [-subtractive] [-xor] [-no-xor] [-fps]

Description

The goop program draws a simulation of bubbles in layers of  overlapping multicolored translucent fluid.

Options

goop accepts the following options:

-window

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

-root

Draw on the root window.

-mono

If on a color display, pretend we're on a monochrome display.

-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

How many bubbles to draw per layer.  Default: random.

-planes integer

How many planes to draw.  Default: random, based on screen depth.

-delay microseconds

How much of a delay should be introduced between steps of the animation. Default 12000, or about 0.012 seconds.

-transparent

If -layers is greater than 1, then each layer will be drawn in one color, and when they overlap, the colors will be mixed. This is the default.

-non-transparent

Turns off -transparent.

-additive

If -transparent is specified, then this option means that the colors will be mixed using an additive color model, as if the blobs were projected light.  This is the default.

-subtractive

If -transparent is specified, then this option means that the colors will be mixed using a subtractive color model, as if the blobs were translucent filters.

-xor

Draw with xor instead of the other color tricks.

-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.

See Also

X(1), xscreensaver(1)

Author

Jamie Zawinski <jwz@jwz.org>, 11-Jun-97.

Info

5.37-6.fc27.1 (15-Aug-2017) X Version 11 XScreenSaver manual