NEW False Color LUT - fast and precise exposure balancing in Vegas Pro

tim-b schrieb am 15.04.2020 um 09:47 Uhr

Hi all,

With being locked inside due to the Covid-19 stuff, I've finally got around to making a long-planned False Color (or colour, depending on where you live!) LUT custom-designed for Vegas Pro.

I think most of us know that Vegas is outstanding in many ways, but a familiar frustration is the way it manages video levels.
Despite thousands of forum posts and YouTube videos, there is still lots of confusion about how Vegas manages studio vs. full-range levels and the result is many 'overly-contrasty' videos created and uploaded - especially when rendering with popular formats like Sony AVC.
This custom-designed False Color LUT is designed to help you easily get your exposure right for 'studio' delivery without needing to understand the complexities of reading video scopes, adding levels modifiers prior to editing, or using additional plug ins. Simply add the LUT as the final 'effect' to a clip (or the timeline), then use your preferred FX tool (Vegas levels, color grading, brightness+contrast etc) to quickly and precisely adjust your exposure. Disable or remove the LUT and you are left with a perfectly exposed image, ready for additional grading or rendering.
In Vegas Pro 17, the new colour grading palette makes this super-simple, but it also works well in older versions (at least I tested as far back as Vegas Pro 12), using free (or low-cost) LUT plug-ins like the Vision Color one - https://vision-color.com/products/lutplugin
If you have ever produced a video that has come out slightly too dark with lost shadow detail, or slightly too bright with clipped highlights, this is the solution! 
The colour highlights are based on the popular Atmos-series of professional monitors, and allows you to dial in perfectly-exposed skin-tones and identify clipping or black-crush at a literal glance - without needing a calibrated monitor or looking at video scopes.
It's easy to use - activate the LUT (as a 'look LUT' in Pro17, or at the end of the FX chain in previous Vegas software); set shadows above Purple; skin tones around Mid-to-Light Grey (with Peach as a guide); and whites in the Yellow-Orange range (Red is clipped). The Green bar is approximately 45IRE for grey card balancing.  

Be aware this LUT is designed *exclusively* for Vegas Pro's full-range video preview and scopes. A version to suit other NLEs is also available on the store. 

I know there are various OFX plug-ins available that claim similar results, but I've not seen anything like this exclusively tuned for Vegas's full-range preview and scopes. It's designed to be a super-cheap add on that will immediately pay for itself in saved-time, reduced frustration, and added-fun in your colour balancing.

https://shoptly.com/i/9yu(coupon code 'vcsforum' will save the first 20 buyers 20%)

 

Kommentare

wwjd schrieb am 15.04.2020 um 13:47 Uhr

video examples?

alifftudm95 schrieb am 15.04.2020 um 16:17 Uhr

wow this is amazing, maybe you should do a demo video how to use it.

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Ehemaliger User schrieb am 15.04.2020 um 16:47 Uhr

visioncolor link is not valid

 

vkmast schrieb am 15.04.2020 um 17:25 Uhr

https://vision-color.com/products/lutplugin/

tim-b schrieb am 15.04.2020 um 22:12 Uhr

Hi guys, just a follow up, I'm just working on a quick video demo today. Will share it soon so you can see how this actually works - good to see there's some interest in it 😉

tim-b schrieb am 16.04.2020 um 05:21 Uhr

Hey team - I've now uploaded an introduction and simple workflow video to

It's been pointed out to me that there are other False Color LUTs available, however I've not seen any that cater to the Vegas exposure level oddities. As a quick example, in the attached image (using a screenshot from my intro video) the preview on the left is my tool, the one on the right is a 'conventional FC LUT'. There are colour differences of course, but both show clipping at purple (low) and red (high). If you relied on the standard LUT on the right, you would not realise the waveform window in this image is crushed. You would also assume you have loads of headroom left for the window title bars, where-as my bright orange indicator show them to be in the high IRE 90s (in reality they are around 98IRE).

You will also notice my choice of high-contrast colours and for much quicker visual adjustment.

Thanks for taking a look and, of course let me know if you like it, or have any other questions for me!

 

lan-mLMC schrieb am 17.04.2020 um 03:29 Uhr

Hello,there is a total free and handy solution for VEGAS Pro's "render too much contrast" problem:

Use Voukoder render plugins and add a filter (full range input and limit range output). Screen Shot. This will resolve "render too much contrast" problem. And you can save it to a render preset for handy rendering.

Here is Voukoder: https://github.com/Vouk/voukoder .

 

tim-b schrieb am 17.04.2020 um 06:57 Uhr

Hi Ian, thanks for highlighting that voukoder plugin - I hadn't come across it before.

Obviously there's plenty of 'free' solutions out there (the most common one is simply adding a computer-studio levels FX to the render output, which is effectively what the Voukoder plug in will also do albeit via a preset if you like).

Of course, for the sake of highlighting the 'excellent value' of my tool, it's worth pointing out that these free options don't allow you to quickly do things like dial in optimal skin luminance or grey card levels, or shot-match - all of which a well-calibrated false colour can do easily.

I've actually been finishing up on another tool for getting perfect skintones (especially great in Vegas, Photoshop etc which don't have skin-line vectorscopes) - - but my plan is to upload a few more videos for the false colour tool, to demonstrate what else you can do with it, over the next little while :)

 

lan-mLMC schrieb am 17.04.2020 um 07:16 Uhr

Hello,VEGAS' render problem's root is that:

VEGAS's studio RGB decoding makes VEGAS Pro show "incorrect" resault in preview window. (incorrect mean that its resault is not same as almost all other softwares' resault.)

Can you develop a plugin or tool which can fix VGEAS Pro's studio RGB decode way to computer RGB decode way, so that VEGAS Pro shows "correct" resault in preview window.

tim-b schrieb am 17.04.2020 um 08:13 Uhr

Hi Ian, I'm certainly happy to look at this. Could you give me an example of what you mean by 'incorrect' RGB decoding? Are there other particular colors or tones that you don't think preview properly (outside of the full range vs video levels thing?)

lan-mLMC schrieb am 17.04.2020 um 08:38 Uhr

Hi Ian, I'm certainly happy to look at this. Could you give me an example of what you mean by 'incorrect' RGB decoding? Are there other particular colors or tones that you don't think preview properly (outside of the full range vs video levels thing?)

Hello, you have known that video rendered by VEGAS Pro looks more contrasty than VEGAS' preview window.

Because the rendered more-contrasty video is his orignal "correct" color. What VEGAS' preview window shows is the "incorrect" color.

You can draw a souce video into VGEAS Pro And compare their luminances of three resaults:

1. Souce video played in your third-party player;

2. What VEGAS' preview window shows;

3. Rendered more-contrasty video.

You will find that:Souce video ≈ Rendered video ≠ What VEGAS' preview window shows.

 

Howard-Vigorita schrieb am 17.04.2020 um 15:26 Uhr

@lan-mLMC you could accomplish exactly what you want with the Vegas Color Match FX. Just do full screen grabs of the same frame in the Vegas preview and your favorite "correct" 3rd party viewer and point to the grab files in the source and target Color Match settings. You could then save that transformation as a Color Match preset or a filter package. Or if you're using Vegas v17, a LUT. Just remember to activate it while editing and disable it on render. One advantage of tweaking levels using this False Color LUT is that it's hard to forget to do that. 😀

adis-a3097 schrieb am 17.04.2020 um 16:20 Uhr

Hi Ian, I'm certainly happy to look at this. Could you give me an example of what you mean by 'incorrect' RGB decoding? Are there other particular colors or tones that you don't think preview properly (outside of the full range vs video levels thing?)

Hello, you have known that video rendered by VEGAS Pro looks more contrasty than VEGAS' preview window.

Because the rendered more-contrasty video is his orignal "correct" color. What VEGAS' preview window shows is the "incorrect" color.

You can draw a souce video into VGEAS Pro And compare their luminances of three resaults:

1. Souce video played in your third-party player;

2. What VEGAS' preview window shows;

3. Rendered more-contrasty video.

You will find that:Souce video ≈ Rendered video ≠ What VEGAS' preview window shows.

 

Do this:

and, when viewed in full screen, Vegas levels will match those of "third party player". :)

lan-mLMC schrieb am 17.04.2020 um 16:40 Uhr

Do this:

and, when viewed in full screen, Vegas levels will match those of "third party player". :)

As you say it is just in full screen. Most users can't do color grading while it is in full screen. It is a pity. And it only corrects the final color.

Actually it seems that the color which Vegas passes to OFX plugins is also "incorrect". And Vegas will process the color which OFX plugin passes to Vegas using a "incorrect" way again. This causes many complicated "incorrect" process. And the final color is a complicated, distorted, "incorrect" color.

lan-mLMC schrieb am 17.04.2020 um 16:44 Uhr

@lan-mLMC you could accomplish exactly what you want with the Vegas Color Match FX. Just do full screen grabs of the same frame in the Vegas preview and your favorite "correct" 3rd party viewer and point to the grab files in the source and target Color Match settings. You could then save that transformation as a Color Match preset or a filter package. Or if you're using Vegas v17, a LUT. Just remember to activate it while editing and disable it on render. One advantage of tweaking levels using this False Color LUT is that it's hard to forget to do that. 😀

Hello, your method is like what SeMW's "PC" preset or VEGAS Level FX does.

Both method restore video's "correct" color by applying a FX. However it doesn't treat the root.

If there are thounds of video we can't apply FX to them one by one.

 

Maybe someone would say that we can add FX to track or output window. It also doesn't treat the root.

Because if we want perfect "correct" color, we should apply Color Match FX to first place of video's FX chain or media FX, rather than last place of video's FX or track FX or output window.

 

Besides, Vegas' "incorrect" color will also cause some other problems, because it seems that the color which Vegas passes to OFX plugins is also "incorrect". It will cause many complicated "incorrect" process:

If you use some third-party Plugins which has their own preview windows such as 3D LUT Creator or Magic Bullet Looks, you will find that when you have accomplished color grading in 3D LUT Creator's preview window and back to vegas, vegas' preview is not the same as 3D LUT Creator's preview window.

Vegas pass "incorrect" color to 3D LUT Creator,

and 3D LUT Creator do some color grading based on "incorrect" color and then pass color-graded color to vegas.

Vegas transform the color-graded color to "incorrect" color again using "incorrect" process. The final color is very distorted "incorrect".

It is a nightmare for users who need do a lot of precise color grading works.

prairiedogpics schrieb am 17.04.2020 um 17:45 Uhr

@lan-mLMC I look forward to more video tutorials with you new plug-in. 😀

Any way you can add voice-over narration to explain it better to us novices?

adis-a3097 schrieb am 17.04.2020 um 18:50 Uhr

Do this:

and, when viewed in full screen, Vegas levels will match those of "third party player". :)

As you say it is just in full screen. Most users can't do color grading while it is in full screen. It is a pity. And it only corrects the final color.

Actually it seems that the color which Vegas passes to OFX plugins is also "incorrect". And Vegas will process the color which OFX plugin passes to Vegas using a "incorrect" way again. This causes many complicated "incorrect" process. And the final color is a complicated, distorted, "incorrect" color.

Don't you think that's a user error? Your "third party player" can be set to show "incorrect" colors too, and the fact that it doesn't means only that someone set them up correctly - for you. Look:

 

Levels set to show 16-235 range as 0-255

 

Now this:

Levels set to show 0-255 as 0-255, as in Vegas preview, meaning uncorrected:

 

All I'm saying is that you need to know what you're working with. Know your tools! :)