GAMMA CORRECTION AND LINEAR WORKFLOW

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🎥 Gamma Correction and Linear Workflow 🎥
In this episode I explain what is a Gamma Correction and why do we need one to use a Linear Workflow in our VFX or CG production.
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🎬 In this video: 🎬
Problems with old CRT monitors
How LED and LCD monitors work
Linear vs Non-Linear Functions
What is a Gamma Function
Why we need a Gamma Correction Function
Gamma Encoding
8bit vs 16+ bit
Linear Workflow
EXR and RAW files

[@testpattern701]

This is a good, technically accurate explanation of gamma. As you say, it all dates back to the early days of TV (1940's) and CRT displays. The gamma value of 2.2 has been baked into the specs since before most of us were born.

[@luismonterrubio3678]

Al fin estas cosas que veo como opciones en Davinci Resolve empiezan a tener sentido. Gracias!!

[@VincenzoPacini]

La tua serie di video è fantastica. Seguo molti canali di video e fotografia internazionali ma nessuno, dico nessuno, è così completo, semplice e chiaro nelle spiegazioni. Ti auguro con tutto il cuore il successo che meriti.

[@g.improductions]

Thanks very much!

[@MarcoStillSeasonsCattaneo]

This channel is gold.

[@g.improductions]

You are too kind! Thanks very much!

[@GlenReed]

Just wanted to say thank you! I have watched all of your exposure videos as well as a few others and they were EXTREMELY helpful. I learned a lot as you did a very good job of explaining complex information in a way I could understand. KZbin is hard but keep up the hard work, you have a lot to offer! Also to get KZbin to show your videos more (more people need to see these), make playlists of your videos and also add end screens promoting your other videos. This overall with help you with the KZbin algorithm. Thanks again 🙂

[@g.improductions]

You are very kind, thanks very much!

[@diegovargas5447]

THANK YOU!!! HAVE BEEN STRUGGLING TO UNDERSTAND THIS!

[@JohnMoran]

Isn't it weird, I spent weeks searching for info on gamma, and found only the same 3 vids each time. Days later, here's helpful gamma videos appearing on their own. At least we know search isn't being manipulated, huh?

[@stefanocaretti4085]

Hi Giuseppe I'm so glad to you!!! You explained Gamma correction, Linear Workflow and introduction to Lut in the best way I've ever heard. Very Great job!!! Thnx very much!!!

[@g.improductions]

Thanks very much, I really appreciate your comment. One is always worried the message doesn't get delivered properly, so is good to know the explanation was clear.

[@omidpakbin]

Great video. Thank you.

[@MaxDangol]

Thanks for sharing🖖

[@ericandersson1620]

Awesome video, I had no idea about the history of the linear workflow, made the topic way easier to understand now!

[@g.improductions]

Good! Happy it was helpful!

[@-.._.-_...-_.._-..__..._.-.-.-]

What an amazing explanation. I now understand everything I need to know about gamma and linear. Thank you!

[@g.improductions]

There is always more to understand! Thanks for your comment!

[@totochandelier]

best tut ever about gamma correction

[@g.improductions]

Thanks a lot!

[@mampiisaotaku]

this video is gold!! thank you very much for doing this video. you explains the cconcept very clearly, and that is very appreciated.

[@g.improductions]

Is important for me to communicate clearly and to get the message through without confusion. If I can't explain it simply enough, it means I don't know it well enough. Thanks for your comment.

[@AbdalaBrothers]

So cool bro! Pure knowledge, keep doing it!!

[@jolu368]

Amazing explanation, thank you!

[@masoomehtanghatari8750]

God bless you , I was really confused and you learn this topic so wonderful to us. God bless.🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹

[@koushikbhattacharya1656]

Its awesome tutorial....plz make this kind of knowledgeable tutorial❤

[@DigitalLeafAcademy]

That's an awesome explanation ! Well done and thank you for sharing this knowledge in a such clear and professional way.

[@g.improductions]

You are welcome! Thanks for your comment!

[@mampiisaotaku]

23:42 not boring at all. very interesting

[@g.improductions]

Really happy wasn't boring...that's one thing I am always worried about! Thanks for your comment!

[@j7ndominica051]

Regardless of CRT monitors, gamma encoding or similar perceptual curve would have to be applied for compact final storage formats, and in several editing tools, such as histogram display and curves, addition of noise, unsharp mask, sharp scaling with negative filter lobes. I think that floating point expression have an implicit gamma of sorts, because they have the same number of quant steps for every doubling of level.

[@xurtix]

Very enlightening. Thanks for sharing your knowledge!

[@gimprotamentor]

No problem!

[@alisherkhayrullaev2829]

Very coherent and awesome explanation. Thank you for sharing your knowledge.

[@g.improductions]

Thank you for leaving a comment! Glad the explanation was easily understandable.

[@josefh8782]

Excellent videos. Best explanations I have come across.

[@g.improductions]

That's really kind of you! Thanks very much!

[@KianKhiaban]

Great tutorial, thanks so much! Learned a lot!

[@g.improductions]

That makes me happy!

[@Kalandrill]

Thanks a lot for such a detailed and clear explanation! I looked through a lot of sources and none of them properly explained why there is always a mention of both crt monitors and human vision.

[@g.improductions]

Thanks for your comment! I am happy the video was useful!

[@BOOMBoarding]

Very well and easy explained, thank you very much!!

[@g.improductions]

Happy to hear that! Thanks a lot for leaving your comment!

[@mustamoreira1061]

you made it really easy to comprehend. thanks!

[@g.improductions]

Glad to hear that! You are welcome!

[@joshuajones6113]

Excellent, thank you!

[@g.improductions]

Glad it was helpful!

[@vladbobe26]

Great, concise video, thank you!

[@g.improductions]

You are welcome! Thanks for your comment!

[@jerwared]

Thank you for this accurate demonstration

[@g.improductions]

Thank you for your comment!

[@Callmedstone]

OMG i finally think that i get it . Maybe …

[@vast634]

2:00 man, you know how to free-draw a diagonal line well!

[@g.improductions]

Hahah thanks, years and years of practice...lol :D

[@StefWillemse]

Very well explained G! I understand it way better now but it's still not very clear how to actually apply this in practice. When to apply gamma correction and when not to? And how much gamma correction? I think i've seen 0.7 and 1.4 and 2.2 gamma corrections for textures. Should all my textures be 32 bit exr's from now on? Because that's heavy. At my previous internship they just used jpegs for the textures in their shading networks because it's not heavy

[@g.improductions]

Thanks for your comment Stef! Using JPG textures is not a good idea because of compression etc, but I am almost finished a new video where I go into the CG side of things more in details! Stay tuned!

[@xevious2501]

I only wish i could see a tutorial of a linear workflow using lightwave and octane render. or for that matter any 3d application *specifically* using Octane renderer, in order to see -exactly- what tools are and more importantly whats not used in the process of a linear workflow. Octane has gamma correction all over the place. for the textures for the camera,, so to see whats being utilized in the process would clear up the confusion created via a mixed interface environment.

[@g.improductions]

I would try and focus more on the concept of why and when you need to apply a gamma correction. If you really understand the process then you can figure out the necessary steps in any software. I will have a look at Octane and report back!