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feedback - Stirring colors with a jiggling warp.


feedback   [--root/-r]   [--maxfps/-x   number]   [--vsync/-y   number]
[--dpms/-M number] [--grey/-g] [--saturation/-S number] [--lightness/-L
number]  [--period/-p  number]  [--speed/-s number] [--cells/-c number]
[--texsize/-t number] [--grid/-i]


Colors are swirled by repeatedly mapping a spring loaded grid to a uniform grid, pulling in colors from the cycling perimeter.

Written by Tugrul Galatali.


--root Draw on the root window.

--maxfps number
Set maximum frame rate.
--vsync number
Limit redraws to specified number of vertical refreshes. 0 100. Default: 1
--dpms number
Stop rendering new frames if the display is not on. 0 - 1. Default: 1
--grey Use greyscale instead of hue wheel.
--saturation number
Set color saturation. 0 - 255. Default: 255
--lightness number
Set color lightness. 0 - 255. Default: 255
--period number
Sets color cycling period in seconds. 0 - 100. Default: 5
--speed number
Sets speed of warping grid wobble. 1 - 100. Default: 10
--cells number
Sets height and width of warping grid in powers of 2. 0 - 6. Default: 3
--texsize numberSets height and width of warped texture in powers of 2. 6 12. Default: 8
--grid Turns on rendering of the warping grid.


DISPLAY to get the default host and display number.




Copyright (C) 2009 by Tugrul Galatali.

Feedback is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation.

Feedback is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.


Tugrul Galatali <>
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