Quote:
Originally Posted by suanm
You're exactly correct.However, Chroma item doesn't appear all the time when the playback of 4K UHD movies.
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Are you watching 4K movies on a display with a resolution lower than 4K?
If yes, turn off the trade quality for performance option "scale chroma separately, if it saves performance". This option will let madVR avoid scaling chroma if it doesn't have to, instead scaling luma to reach the same resolution as the chroma. Effectively this is still converting to 4:4:4, but it is probably lower quality than scaling chroma to match the luma and then downscaling in RGB.