Simple HDR for Vimeo?

[Marcus Mader]

Newbie to RED (recently purchased Komodo) and to editing/color correcting in DaVinci Resolve Studio 17. I am looking for a simple method for color grading and exporting in HDR for Vimeo. I want to take full advantage of my footage's wide dynamic range but I'm getting seriously lost in the weeds researching HDR workflows. A lot of the information that I'm finding doesn't seem to apply to RED specific footage.

I shot my project on my RED Komodo - 6k R3D 17x9 LQ and MQ. I edited the project in Resolve Studio 17 with a 4K DCI timeline, intending to export in 4K DCI HDR for Vimeo. My computer is a 2019 MacBook Pro 15-inch, 2.8 GHz 8-core Intel Core i9 with 32GB 2400 MHz DDR4, with a Radeon Pro Vega 20 4 GB Intel UHD Graphics 630 1536 MB. I also have an external monitor: BenQ PD3220U DesignVue Designer 31.5" 16:9 HDR 4K IPS Monitor which claims to do 95% of DCI-P3 and HDR10. I have had to cut the project using lower-resolution proxies.

Vimeo states:
During the upload process, we will detect that your video is HDR or Dolby Vision based on metadata in your source file. Once our system reads that your video is HDR, we’ll automatically generate HDR playback files, up to 8K, that use the HEVC (H.265) video codec. The maximum quality depends on your source file’s dimensions. Please note that Dolby Vision videos will not exceed 4K.

We’ll also create a set of standard (SDR) versions, as well as wide color gamut (increased color) versions, so you can always view your video in the best quality possible from any playback environment.


So, it seems like I could just upload a P3 or Dolby Vision master file and Vimeo will auto-generate lower-res files to playback on SDR machines (which it will auto-detect?). My goal is to embed these videos into my website.

Any good resources on setting this up correctly with R3D files in Log3G10 / RedWideGamutRGB? Can anyone share their experience with Vimeo generating these lower-res versions? Should I use a RED IPP2 LUT to convert from Log3G10 to Rec2020 BT1886 as my last node? I realize that I will need to re-grade the edit once I find the correct settings. Any help would be greatly appreciated.

- Marcus

 

[rand thompson]

Marcus,

Try these settings, use the correct frame rate for your project, the example below uses 25 fps.

 

[rand thompson]

I can't remember exactly what project settings I used when I did do this. I saved the export settings above as a preset but unfortunately didn't save the project settings.


Try one of these.

 

[Marcus Mader]

Thanks Rand. I will start with the RedLog3G10 project settings and experiment. Would you recommend color grading with a Rec2020 output node with this setup?

 

[rand thompson]

Marcus.

I'm taking another look at using a PQ Curve( HDR/ST-2084) instead of a HLG curve to see which one looks best. When I originally used these settings, I was working with a friend who had a display reasonably calibrated for REC 2020, I don't have that display now. So if you have a calibrated REC 2020 display, you will be able to see which settings worked best. So let me get back to you.

Link to some Dolby Vision Content on Vimeo
Experience Dolby Vision on Vimeo on Vimeo


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VIMEO HDR
Video and audio compression guidelines – Vimeo Help Center (zendesk.com)

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[rand thompson]

Marcus,

Try looking at this video I posted on VIMEO to see how it looks on a REC2020 monitor

[video]https://vimeo.com/manage/videos/662857304?utm_campaign=2470763&utm_source=affiliat e&utm_channel=affiliate&cjevent=ddad8afd6eb211ec 81 9c010b0a82b836&clickid=ddad8afd6eb211ec819c010b0a8 2b836[/video]

These were the settings I used

I believe the "VBR HIGH QUALITY" gave the best results. However you might want to try both out.

 

[rand thompson]

I put the resulting H.265 file from the settings above on a Sandisk 128gb 3.0 Thumbdrive and placed it in one of the 2 USB 2.0 Slots of my 43 inch Samsung TV which is HDR capable to check it out.

The image below is a screenshot of the image on the Samsung TV, which looks crushed and blown out. However it looks fine actually.

 

[rand thompson]

Here are the RED IPP2 COLOR MANAGED settings that also triggered HDR and HLG gamma on my 4k HDR compatible TV. Just use the same delivery settings with the"VBR HIGH QUALITY" Rate Control .

 

[rand thompson]

Here are the Custom DAVINCI WIDE GAMUT HDR COLOR MANAGED settings that also triggered HDR and HLG gamma on my 4k HDR compatible TV. Just use the same delivery settings with the"VBR HIGH QUALITY" Rate Control .