Custom Compiz color filter

[jpka]

Hi! Unfortunately it is impossible to use this filter in Ubuntu 13.04 at all. So 13.04 unusable for professional[1] use. So i agree i need to fall back, or find other distro. When selecting Ubuntu for fallback, i take look at 10.04, it is one of latest which are truly professional[1], and latest professional with LTS. (I also try Xubuntu, etc). There is no any problem with color filtering in 10.04.

I also develop final version of filter: Now it has absolutely correct colors when inverted.

!!ARBfp1.0
TEMP temp, neg, YPbPr;
TEX temp, fragment.texcoord[0], texture[0], RECT;
RCP neg.a, temp.a;
MAD temp.rgb, -neg.a, temp, 1.0;
MUL temp.rgb, temp.a, temp;
MUL temp, fragment.color, temp;
DP3 YPbPr.x, temp, {0.333, 0.333, 0.333, 1};
SUB YPbPr.y, YPbPr.x, temp.b;
SUB YPbPr.z, YPbPr.x, temp.r;
ADD temp.r, YPbPr.x, YPbPr.z; 
ADD temp.b, YPbPr.x, YPbPr.y;
SUB temp.g, YPbPr.x, YPbPr.z; 
SUB temp.g, temp.g, YPbPr.y;

MOV result.color, temp;
END

# DO NOT MOVE LINE #2 (TEMP...) below, i.e. do not insert comments before it!
# do not insert comments before 'END' token: SOMETIMES not work!

# replace file /usr/share/compiz/filters/negative with this file.

#  Color filter: negative, but preserve colours. Tested on Ubuntu LTS 10.04.

# compiled from [1], [2] by jopka@kvidex.ru, www.bdyssh.ru
# [1] http://hronir.blogspot.com/2008/09/compiz-fusion-color-filter-for-hue.html
# [2] http://ubuntuforums.org/showthread.php?t=1419702

# add to line 15:  MUL temp.b, 0.5, temp.b;  - for warm/melatonine colors, or 
#  MUL temp.g, 0.5, temp.g;  - for cold colors.

-----
[1] Professional - means here: Intended to use many hours a day without eye damage.

[kikazaru]

jpka

Just what the doctor ordered!

Excellent.

Thanks.

[lian1238]

I have found another (less extreme) alternative to the color filter: f.lux
It makes the screen warmer at sunset and back to normal at sunrise, attempting to keep your sleep pattern "normal."
Hope it is useful.

[hellwoodfire]

I'm new. In jan 2015, I don't find the Color Filter plugin on the Compiz Configuration Manager.
How do I install it ?

[CantankRus]

As Unity is a plugin for compiz, Canonical has taken over the development of compiz
and some plugins are unsupported and cease to function as compiz develops.

You can install the compiz-plugins unsupported plugins package
but this does not include a Color Filter plugin.
There is a negative plugin to toggle windows negative as in pic.
Some of the plugins provided by compiz-plugins are cube, firepaint, opacify, scaleaddon.
Most of these still work.