starfish — radially-symmetric throbbing colormap-hacking graphics demo
Synopsis
starfish [-display host:display.screen] [-foreground color] [-background color] [-window] [-root] [-mono] [-install] [-visual visual] [-delay usecs] [-delay2 secs] [-thickness pixels] [-rotation degrees] [-duration seconds] [-colors int] [-blob] [-no-blob] [-fps]Description
The starfish program draws radially symmetric objects, which expand, contract, rotate, and turn inside out. It uses these shapes to lay down a field of smooth colors, and then rotates the colormap.Options
starfish 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.
- -delay microseconds
- How much of a delay should be introduced between steps of the animation. Default 10000, or about 1/100th second.
- -thickness pixels
- How wide each color band should be. Default 0, meaning random (the chosen value will be between 0 and 15.)
- -rotation degrees
- How quickly the objects should rotate at each step. Default 0, meaning random (the chosen value will be between 0 and 12 degrees.)
- -colors int
- How many colors to use. Default 200. The more colors, the smoother the transitions will be, and the nicer the resultant images.
- -duration seconds
- How long to run before choosing a new shape. Default 30 seconds.
- -delay2 seconds
- When duration expires, how long to wait before starting a new run. Default 5 seconds.
- -blob
- -no-blob
- If blob option is specified, then the raw shapes will be shown, instead of a field of colors generated from them.
- -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.