https://bugs.kde.org/show_bug.cgi?id=527279

Zamundaaa <[email protected]> changed:

           What    |Removed                     |Added
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             Status|REPORTED                    |CONFIRMED
                 CC|                            |[email protected]
     Ever confirmed|0                           |1

--- Comment #6 from Zamundaaa <[email protected]> ---
Some difference is expected with HDR videos.
Some of it is caused by hardware / driver / KMS API limitations (1D LUT often
doesn't do quite as well as the API would suggest), but some of it is also just
because KWin uses a shader to run the entire tonemapping algorithm, while the
KMS path uses a 3D LUT.

We can likely reduce the difference a lot (and hopefully improve performance a
little bit) for AMD if we also use a 3D LUT in the shader. For other hardware,
it's more challenging though because they don't have a 3D LUT...

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