HDR on Davinci Resolve Studio

Hi,
Can someone explain me the workflow to use HDR in Davinci Resolve Studio (I'm new in Davinci and I only the basic of the program)?
I have a HDR so i'm intersted in It?
Regards
Ugo Merlini

I can only speak about PQ HDR.

The answer can be very complex.

Assuming you just need to export for YouTube HDR….

Setup a color managed HDR project. PQ/ Rec2020 but P3 limited.
Set monitor peak brightness based on your monitors capabilities. Typically, 600 nits for OLED TV and 1000 nits for LED.
Import media.
Grade.
Export an H.265 Main10 HDR file.
Upload to YouTube and wait 2 hours to 1 week for the HDR to be processed.

If you are having problems with YT reconizing your HDR files as HDR, there is a known resolve bug where its metadata isn't correct for YT to accept the file as HDR.



viewtopic.php?f=21&t=212751&p=1127183&hilit=hdr+youtube#p1127183

You need to run through FFMPEG and have it fix tagging

You can "fix" those files with ffmpeg:

Code: Select all

fmpeg.exe -i C:\TestAsHDR.mp4 -bsf:v hevc_metadata=transfer_characteristics=16:colour_primaries=9:matrix_coefficients=9 -c copy  -movflags +write_colr C:\out.mov

This will add PQ flagging to your file.

No clue if it is fixed in V20

Hi,

here my workflow

color management menù



first node


last node

Hi,
No One can help me?
Regards
Ugo

Okay, explain the ideas of your workflow, because it doesn't make sense to me.

Firstly, you start by doing Resolve Color Management, then do Color Space Transform. Why?

Secondly, what exactly is the issue? What doesn't work? What happens that you don't expect?

Okay, explain the ideas of your workflow, because it doesn't make sense to me.

Firstly, you start by doing Resolve Color Management, then do Color Space Transform. Why?

Secondly, what exactly is the issue? What doesn't work? What happens that you don't expect?

The workflow idea is to trasform panasonic v-log video files into hdr output
In color managment I set the projct properties that must match (is what I understand I must do first) my final work

then I create a first node to transform Vlog files to intermediate gamut to edit the files in the second node.
the last node need to trasform the intermediate gamut in HDR

The problem is that i'm not sure if I do the right procedure/use the right setting

Regards
Ugo

The workflow idea is to trasform panasonic v-log video files into hdr output
In color managment I set the projct properties that must match (is what I understand I must do first) my final work

then I create a first node to transform Vlog files to intermediate gamut to edit the files in the second node.
the last node need to trasform the intermediate gamut in HDR

The problem is that i'm not sure if I do the right procedure/use the right setting

Regards
Ugo

As an overview:
Transforming V-log to HDR: Since V-log is natively supported by RCM, there's no need to do anything with CST. See chapter 142 (Image Processing Order of Operations), page 3177 for details.
CST has effect strictly inside the Clip Grade section, RCM has effect from after Lens Correction to before Data Burn in.

What I think should happen: Video is converted to RCM Color Processing Mode (from V-log to Rec.2020 Intermediate), graded, converted to Output color space.
What you're doing is: Video is converted to RCM Color Processing mode (from V-log to Rec.2020 Intermediate), Converted from Rec.2020 Intermediate (interpreted as V-log) to DWG, graded, converted from DWG to Rec.202 ST2084 100 nit, converted (from Rec.2020 Intermediate) to Rec.2020 ST2084 1000 nits. (The last conversion is NOT a noop, despite what it might look like)

I assume the difference is clear. Convert as few times as possible.

I'm also confused about the choice of Rec.2020 Intermediate and DWG as intermediate color spaces.

In any event, setting Rec.2020 ST2084 1000 nits does give you an HDR video. Youtube even recognizes it without any processing (with files from DR 20).

I personally like HLG a lot more, as it uses the entire waveform space, but if your intended recipient wants Rec.2020 ST2084 1000 nits, then that they shall have.

The workflow idea is to trasform panasonic v-log video files into hdr output

Here's how I do it.

Though I make NO claims this is the correct way, or that it will work on YouTube. I only claim it will trigger HDR mode on your living room TV.

(And if you're any good at Color, it'll look pretty damn nice! )

For editing: (Be sure to properly set the Input Color Space for your clips in the bin.)

HDR Edit.png (72.34 KiB) Viewed 532 times

Before Delivery, switch this:

HDR Export.png (76.14 KiB) Viewed 532 times

Encoding settings: (Change only Key Frames if necessary to 1/2 your timeline FPS.)

HDR Deliver.png (120.44 KiB) Viewed 532 times