The default settings are not suited for everything/anything. 
Like I wrote, there is no standard which defines 'this is THE way to convert HDR to SDR' it all comes down to preferences it's basically color grading.
What source filter are you using? (assuming your hardware can decode your source through the gpu this might help
)
What does your script look like?
Filtering 4k content requires some serious computing power, especially when using software based filters.
Also keep in mind you won't get the same colors the HDR version has with the SDR version, if that was possible there would be no need for HDR.
for example: (left original, right filterd using ToneMap(placebo)
![[Image: grafik.png]](https://i.ibb.co/Tr6Y32m/grafik.png)
Cu Selur
Ps.: When doing HDR to SDR you should have a HDR monitor, and open the HDR content in a player and the filter preview to properly see what you try to emulate.
Like I wrote, there is no standard which defines 'this is THE way to convert HDR to SDR' it all comes down to preferences it's basically color grading.
Quote: generating a preview takes a very long time (several minutes)What hardware are you using?
What source filter are you using? (assuming your hardware can decode your source through the gpu this might help
)What does your script look like?
Filtering 4k content requires some serious computing power, especially when using software based filters.
Also keep in mind you won't get the same colors the HDR version has with the SDR version, if that was possible there would be no need for HDR.
for example: (left original, right filterd using ToneMap(placebo)
Cu Selur
Ps.: When doing HDR to SDR you should have a HDR monitor, and open the HDR content in a player and the filter preview to properly see what you try to emulate.