More > JRiver Media Center 31 for Windows
JRVR Video Renderer
Movieman:
--- Quote from: mattkhan on June 15, 2023, 02:14:30 am ---what's it meant to look like?
--- End quote ---
The MadVR JRiver output. These are frame captures, in motion the darker patches are blinking on and off.
You can find a complete set of patterns on the Spears and Muncil V3 calibration set, or a somewhat easier to navigate set referenced here: https://www.avsforum.com/threads/hdr10-test-patterns-set.2943380/.
Working with tone mapping can be very subjective, but these patterns and images help us to actually quantify what we believe our eyes are seeing.
Watching real world program material, the JRVR31 and the MPV tone mapping algorithms have visibly higher (excessive?) saturation in the reds than MadVR does.
This shows clearly in the test pattern I posted, as MadVR with the proper settings is really the only option that seems to process all colors equally.
If you desire, I can post my MadVR calibration settings for you. I am using a JVC RS3100 running medium laser.
On second thought, I have included it as an attachment. (It's actually using max3 variant 2).
When you download these patterns, you will find in section 9, an HDR video that has 20 or so still images that show these differences. Put them up side by side on a display and observe the impact on the saturation in the reds in particular caused by variations in tone mapping algorithms.
Disclaimer: I am only speaking from my observations which are based on logic and my perceptions. These are based on prior experience as a projectionist for 30 years in commercial theatres and experience calibrating all manner of projectors in my HT for the past 15 years or so.
jmone:
FWIW - Hendrik has already noted the following in a post I had about something up with tonemapping blues (but this test was with HDR Output - and then windows weird PrtScr but you get the idea):
--- Quote from: Hendrik on May 30, 2023, 07:37:36 am ---The desaturation of strong blue tones is a known issue and should be improved when we next update libplacebo.
--- End quote ---
mattkhan:
--- Quote from: Movieman on June 15, 2023, 08:05:02 am ---Watching real world program material, the JRVR31 and the MPV tone mapping algorithms have visibly higher (excessive?) saturation in the reds than MadVR does.
--- End quote ---
yes I've reported this previously, there are certainly saturation issues with red that are quite apparent on skin tones.
Hendrik:
Tonemapping is an ever ongoing process. Definitely tracking some saturation issues still.
JimH:
Split madVR Settings
Please don't use this thread for madVR discussion.
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