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Message #41296
[Bug 1400580] Re: Color Inverse on display. Toggle Negative Image
It's trivial to do in a fragment shader:
gl_FragColor = vec4(1.0 - red, 1.0 - green, 1.0 - blue, 1.0);
The only issue is that Unity doesn't share shader logic with Mir. We'd
have to implement it in Unity8/Qt at least.
I'll leave the Mir task open because we might get a separate proof of
concept done in Mir still.
** Tags added: enhancement
** Changed in: mir
Importance: Undecided => Wishlist
** Changed in: mir
Status: New => Triaged
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https://bugs.launchpad.net/bugs/1400580
Title:
Color Inverse on display. Toggle Negative Image
Status in Mir:
Triaged
Status in unity8 package in Ubuntu:
Confirmed
Bug description:
I would like to see a feature that allowed Unity8, to easily inverse
the desktop colors. To be able to easily turn on and off a negative
(inverse) display of the desktop. For now, it can be done with X
(xcalib). It would be nice to see Unity8 do this natively, instead of
Ubuntu users needing this feature hoping, X-11 support will always be
available.
This is a feature I use, due to impaired eye-sight.
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References