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Old 17th May 2018, 13:27   #50887  |  Link
madjock
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Join Date: May 2018
Posts: 259
@Clown shoes

Does anyone know if the process HDR content by using pixel shader math option presumes the display is already calibrated and just send the information in the same way passthrough would? Or does it take any LUTS loaded into MadVR into consideration?


From Warner306 post on a KODI Forum :

convert HDR content to SDR by using pixel shader math: HDR is converted to SDR. The display receives SDR content.
convert HDR content to SDR by using an external 3DLUT: HDR content is converted to SDR. The display receives SDR content. If you supply multiple 3DLUT files, the one which best matches the source gamut will be used. The 3DLUT receives untouched R'G'B' HDR (PQ) data, applies tone & gamut mapping, then outputs R'G'B' data in the display's native gamut and transfer function.
process HDR content by using pixel shader math: The display receives HDR content, but the HDR source is downconverted to the target specs.
process HDR content by using an external 3DLUT: The display receives HDR content, but the 3DLUT downconverts the HDR source to some extent. The 3DLUT input/output is R'G'B' HDR (PQ). The 3DLUT applies some tone and/or gamut mapping.

https://forum.kodi.tv/showthread.php...942#pid2238942
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