Originally Posted by Javs
Things are not quite done yet, but yeah version 5 will work right now, though I wont provide any support on an unfinished process. Nor should we be asking Madshi in that other thread just yet, hes far too busy.
Yes it is HDR to SDR tone mapping. You would be using 2.4 gamma on the projector. If you know the parameters Chad used you can get those into MadVR.
Alright I stayed up WAY too late last night tinkering with jRiver + MadVR. I was able to successfully install the version 5 build and to my eyes HDR->SDR looks stunning.
I will respect your wishes and not ask for support on an unfinished product, but was wondering if you could help me with a MadVR question unrelated to the unfinished process.
My question is with regard to MadVR and bit-depth. Currenty I have the following video chain: Madvr (16-235), GPU (0-255), JVC Standard (16-235). On my GPU, my resolution is set to 2160p60hz 8-bit. Using the new feature, the colors look stunning and everything on my OSD says 10-bit, BT2020 etc... However, my JVC info screen says 8-bit
Does the JVC need to report 10bit+ in order to properly WCG or is MadVR dithering 10bit->8bit?
Otherwise, as you already know, the colors displayed by MadVRs tonemapping absolutely blow away what the Oppo is doing. I have "The World" demo and the colors jump off the screen. I had to disable 'reduce banding' and 'reduce ringing' in the artifact removal options in order to get my render time below 16ms... but thus far I am not seeing an banding as a result.
I'm really just left with the question of... its looks so damn good, but the JVC is reporting 8-bit Color depth.
edit: I think I found my answer on the doom9 forum.
For 4k23p, RGB 4:4:4 12-bit is ideal. For 4k60p, RGB 4:4:4 8-bit is ideal. I guess bit-depth isn't directly tied to WCG/BT2020. I have a whole new love and appreciation for the RS600 with this setup.