goop(1)

goop1

Squishy transparent oil and bubble screenhack

Usage

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

Overview

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.

-layers integer

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

-delay microseconds

How much of a delay should be introduced between steps of the animation. Default 100000, or about 1/10th second.

-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.

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.

Releases

4 releases since Debian 2.0 (Hamm); the text changed 2 times.

  1. 2.0
  2. 2.1
  3. 2.2–3.0

Author

Jamie Zawinski <[email protected]>, 11-Jun-97.

From xscreensaver 3.34-3 in Debian 3.0 (Woody). Parsed by carta from the page's man source.