10bit clip looks faded? best way to correct it?

Former user wrote on 4/26/2023, 1:14 PM

Hi, I was messing with my new phone the other day & forgot that I'd put it on HDR10 which produces 10bit clips, now they're faded,

What's the best way to correct them, they play fine in MPC player so is it just a setting in Vegas i could change 🤷‍♂️

Thanks

PS I've unticked HDR10 so now my clips look correct, it's just a few that need correcting

Comments

Wolfgang S. wrote on 4/26/2023, 4:33 PM

What is your target format? Rec709 or HDR10?

Because if it is rec709, you will have to transform the flat footage to rec709 - using LUTs or better an ACES transformation.

Desktop: PC AMD 3960X, 24x3,8 Mhz * RTX 3080 Ti (12 GB)* Blackmagic Extreme 4K 12G * QNAP Max8 10 Gb Lan * Resolve Studio 18 * Edius X* Blackmagic Pocket 6K/6K Pro, EVA1, FS7

Laptop: ProArt Studiobook 16 OLED * internal HDR preview * i9 12900H with i-GPU Iris XE * 32 GB Ram) * Geforce RTX 3070 TI 8GB * internal HDR preview on the laptop monitor * Blackmagic Ultrastudio 4K mini

HDR monitor: ProArt Monitor PA32 UCG-K 1600 nits, Atomos Sumo

Others: Edius NX (Canopus NX)-card in an old XP-System. Edius 4.6 and other systems

Former user wrote on 4/26/2023, 4:47 PM

@Wolfgang S. Hi, I don't know much about this but 709 is familiar to me & that's the ones that look correct,

This is one of the 8bit clips that looks correct, & at the bottom is the 709 that I'm used to seeing

--

I've had play with brightness, contrast & luts on the HDR10 files, they bring the image back to a better look, I think I'm just going to adjust these best i can & i'll try learn what's the difference between 10bit & 8bit,

Thanks.

fr0sty wrote on 4/26/2023, 6:44 PM

If 709 is your target, your best bet is to shoot non HDR clips.

To make them look normal, you can use a rec2020 to rec709 Lut if in an 8 bit project, or you can put VEGAS into 32 bit full range mode, set the view transform in project settings to Rec709, then right click on your clip in the project media bin, select "properties", and under color space, set it to Rec2020.

Last changed by fr0sty on 4/26/2023, 6:44 PM, changed a total of 1 times.

Systems:

Desktop

AMD Ryzen 7 1800x 8 core 16 thread at stock speed

64GB 3000mhz DDR4

Geforce RTX 3090

Windows 10

Laptop:

ASUS Zenbook Pro Duo 32GB (9980HK CPU, RTX 2060 GPU, dual 4K touch screens, main one OLED HDR)

Former user wrote on 4/26/2023, 7:34 PM

@fr0sty I didn't intend on shooting HDR, I was just experimenting & forgot I'd set it to that.

Thanks, that lut looks very similar to what I achieved with Boris's Color Corrector, mainly contrast & brightness with a bit of extra colour.

Boris's Color Corrector

rec2020 to rec709 Lut, this ones a blacks are a bit darker but I can play with the strength etc..

The last setting, 32 bit full range mode, project settings to Rec709, don't know what nits are but the 4000 seems to be the best of those choices.

This is the orig screen capture on MPC Player which looks true to life

I'll have a play with all, thanks for the suggestions,

👍👍

mark-y wrote on 4/26/2023, 8:04 PM

Your media properties sometimes don't set themselves correctly.

 

Former user wrote on 4/26/2023, 9:16 PM

@mark-y Hi, I had it on the 4000 nits one, I could just notice a slight difference in short renders compared to the 1000nits one, but just been reading a few posts like this https://www.whathifi.com/advice/nits-and-lumens-what-are-they-and-why-are-they-important, I'd heard of Lumins but Nits was new to me, maybe it was something else I was seeing in the two renders, I need to play with i a bit more n see, nice tho that I've got a couple of fairly simple options & I've learnt something, thanks

Wolfgang S. wrote on 4/27/2023, 1:25 AM

Hi, I was messing with my new phone the other day & forgot that I'd put it on HDR10 which produces 10bit clips, now they're faded,

What's the best way to correct them, they play fine in MPC player so is it just a setting in Vegas i could change 🤷‍♂️

The point is, that Mediainfo shows that your file has all attributes of an HDR10 file:

- you have rec2020

- you have the transfer characteristic of HDR10 - PQ

- the luminance in the clip is shown as up to 1000 nits (nits is a measure for the luminance. The Mediainfo shows, that the metadata in your file are 1000 nits - so you should not set it to 4000 nits.

- and it is 10bit HEVC

Fine so far. You can compare that to the mediainfo that you have posted in the 2nd posting - where you see that this clip is rec709/SDR.

While you can playback such a file with a player, where you adjust the media properties to HDR10, where the player makes the transformation to your rec709 monitor (I assume you have no HDR monitor), the other question is how you can transform such a clip to rec709 - or keep it at HDR10 if you do an HDR10 project.

 

So:

- The first decision is, should it be transformed for an HDR monitor/TV or for an SDR monitor/TV. That is up to you.

- The second point is - if you make a transformation from HDR10 to rec709, then you have the possibilities mentioned here.

So what do you wish to do?

 

 

 

Desktop: PC AMD 3960X, 24x3,8 Mhz * RTX 3080 Ti (12 GB)* Blackmagic Extreme 4K 12G * QNAP Max8 10 Gb Lan * Resolve Studio 18 * Edius X* Blackmagic Pocket 6K/6K Pro, EVA1, FS7

Laptop: ProArt Studiobook 16 OLED * internal HDR preview * i9 12900H with i-GPU Iris XE * 32 GB Ram) * Geforce RTX 3070 TI 8GB * internal HDR preview on the laptop monitor * Blackmagic Ultrastudio 4K mini

HDR monitor: ProArt Monitor PA32 UCG-K 1600 nits, Atomos Sumo

Others: Edius NX (Canopus NX)-card in an old XP-System. Edius 4.6 and other systems