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Maybe not flashy, but important! We're talking proper footage linearization again, and how to easily do it in Blender!

Nathan's put a bunch of work into the color tools since we last talked about them a couple years ago. I use them basically every day, so I wanted to dive into them again!

I've got a lot of compositing to do in the next month or two, and I want to talk about a few new techniques, and this is the foundation for most all of them.   

Download the tools here, under Releases.

Here's the video covering the original release, which goes more in depth into transfer functions and what they are.

And if you really want to wrap your head around it (which I recommend, if you're going to be doing a lot of compositing), here's an in-depth episode of Nathan (probably the smartest guy I've ever met on the topic), explaining it in detail. 

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One of the Biggest Compositing Basics

We're talking proper footage linearization, and how to easily do it in Blender! Nathan's put a bunch of work into the tools since we last talked about them a couple years ago. I use them basically every day, so I wanted to dive into them again! I've got a lot of compositing to do in the next month or two, and I want to talk about a few new techniques, and this is the foundation for most all of them. Download the tools here, under Releases: https://github.com/EatTheFuture/image_tools

Comments

Anonymous

Can anybody tell me how to accomplish this with a Blackmagic camera? I can't figure out how to get the lense cap picture into the app. Blackmagic cameras take pictures in a weird raw format. I'm going to try it on my new fx30 today but it would be nice to figure it out with the Blackmagic as well...

Anonymous

Maybe try shooting a quick video and exporting one frame as a jpeg from your editing software.

Anonymous

This is a great video! BUT something I really need to know now is your workflow for canceling the photogrammetry lighting to get flat lighting that you mentioned. You can just say something super cool and gloss over it 😂😂

Anonymous

He goes over the whole process in a previous video. Sorry I don't know which one off hand.

Anonymous

Finally, I waited so long ;) Cant wait to see more of this. Please show us the actual process of light matching and foremost subtracting the lighting on scanned Objects. It sounds really intriguing

Anonymous

In the vein of getting things to match footage, what's your process for matching lens distortion? I've been messing around with a few different workflows recently, but all of them seem to have huge drawbacks and none of them are very straightforward or intuitive at all. Maybe I'm missing something obvious? I'd just love to see what your workflow for that is in case there's a better way than what I'm currently doing

Kai Christensen

I love your 3D modelling/shading videos, but I think videos like these are my favorite. I don't think I'll ever get tired of videos on compositing, projection, set extensions, greenscreen — generally any live action + CG integration work in Blender. I've been hooked ever since I saw the original Dynamo Dream teaser and I've learned so much from this Patreon since then. Even if you posted no tutorials, I think I'd still be a patron of yours, just because I want to support future Dynamo productions, but the fact that you've made so many genuinely useful instructional videos really sweetens the deal. Keep up the fantastic work man!

Jack_Wolfe

WOOOO! I've been dying for your next BHTS/Tutorial

Anonymous

Nathan is a legend. Many thanks to you guys.

Anonymous

just going through the build in addons and noticed "is key free". Back when you made the How to make and add-on - tutorial, you mentioned you don't know what keys you can make new shortcuts for.. apparently, this does exactly that; find free shortcuts!

Anonymous

Awesome! Can you make a video on projecting an hdri onto a photoscan geometry of the environment for more accurate lighting and compositing? Can you also show the technique for de-lighting a photoscanned subject?

Anonymous

Literally popped back to ask for the delighting tutorial. :D

Anonymous

I've been using it since the first release

Anonymous

What 3D camera are you using/ any you would recommend for HDRI bracketed captures?

Michael Lau

Thank you so much ! Really appriciate Nathan and Ian 's work which literally save my life ! i think it is the most accurate lut I've ever used! I wish I can use it in davinci as well so much. I'm dying for the solution...The problem is: when i use it in davinci resolve, the lut is completely dark. Anybody has the same problem? PS: my camera is BMPCC...

Michael Lau

I really think this tool is revolutionary in blender VFX history ! Imagine that all your greenscreen footages, image textures, photoscan models and HDRIs are all came from the same camera and using the same LUT, white balance, contrast ratio... Then the whole cg thing you made won’t ever have the ’doesn’t gel’ problem cause they’re all the same tone! Forgive me if my imagination is unpractical… But when I try to apply the ‘raw’ image texture on the subject, same problem happened again… It’s completely dark…(emission strength doesn’t really help in this case…) I’m soooooooo eager to tackle itttttt!

Anonymous

since blender is going to switch to AgX in 4.0 will the color tool be updated to support the new color standart?

Cole Smith

I've been using the ETF tool to create OCIO configs since the first video on it and it's fantastic!

Anonymous

I'm new to the color space things so I think I'm allowed to ask stupid questions ;). Are you also rendering in rgb? But because you save it in EXR it doesn't matter cause you have the range in the file?

Anonymous

i tried making my ocio settings, but the agx not found can you tell me what happen?

Quantay Peoples

I didn't understand anything, might have to pass on this gem sad

Anonymous

But what if my Gamut is also unkown? I use the DJI mini 3 pro. Estimated everything, but the Gamut isn't DJI D-Gamut. Read in a Reddit post it is Rec.709 but with shadows lifted.

Alex Handjiev

After adding the OCIO to the windows settings, all view transforms in blender are gone and have been replaced by different stuff. Did I miss something in the video?

IanHubert

OH! I'll look into this tomorrow! It's possible there are changes with blender 4.0!

IanHubert

That sounds about right! If you use Rec.709, but use the black levels estimation for the initial LUT generation, that should work alright, then!

Vitor Assan

This workflow is incredible in blender! I just couldn't seem to get it to work out in resolve, do you actually use these custom idts when working in davinci for something like keying a footage before it goes to blender?

itay oz ari

Hi, I would appreciate clarification or a link to another video that talks about the subject. I shot a green screen in Arri log c - I want to perform compositing in After Effects. But still use the technique of placing the footage inside the scene so that I can derive from it reflections, shadow, lighting, etc. What will be the corrected workflow in terms of the color space? I want to take advantage of Agx's dynamic range and somehow manage to connect the two in After Effects. The way I understand it - I will simply do a color conversion to Rec709 during the compositing phase (once from Log c and once from AGX). Am I missing something? Thanks