I would like to create a preset similar to the one

Hello everyone,

First time I post here, I do not have too many difficulties to create presets ReShade it's been a long time since I create, sometimes I do good things sometimes it's means, I started already since the SweetFX version 1.5 ect ... And now ReShade tool that I love a lot and I wanted to thank the authors and creators of all these Shaders, it is remarkable.

In short, there is a YouTube channel that I discovered not long ago and it is the most beautiful ReShade I've seen: www.youtube.com/channel/UCPF4-nJKvSCKt6VnphtFJ-g/videos
Of course (not to change anything) he does not share his presets, and I ask him a few questions to know what he uses, the effects, luts, but he still has not answered me, and so I fell on a video where he created a beautiful preset on AC: Origins
I love ... The colors, the tones, the natural ...

Apparently it uses ReShade 2.0.3, but I prefer to use ReShade 3.10 which prevents me from doing ALT + TAB, but before you tell me, I have more or less all Shaders to wear (I found packages ported to version 3.0 of reshade) so I compared and I have all the necessary shaders like version 2.0. (I even have the "Pirate Shaders" which are not in the version 2.0 of ReShade, a screen here: imgur.com/a/niVrb

Now here I tried since yesterday to recreate the same colors as him with dozens of compilations of tests, and different effects (even with lightroom.fx) and I can not get the same result as him! It becomes even frustrating, He happens to have a tonemap a little pink with palm trees very green, even with "filmicpass.fx" I have not at all the same, and yet I know all the effects ...

So I started to wonder if he does not use color palettes "LUT" which seems to me more than likely, but as I'm a noob with Photoshot / Gimp or other retouching software, I tried to find packs of LUT on the internet (Witcher 3 / Fallout 4 ...) but there are not many and I do not have the same results at all.

If only I knew if he uses LUTs or what main effects he uses ...

Here I am losing hope, how to do? I love his preset and I do not even play the game since I saw his video
And sorry for the pavement I needed to explain in detail

Probably a LUT. Else it'll be one of the tonemapping or technicolor shaders.
LUT's for other games probably won't work as they'll be built around that game's own color grading.

Play around with the curves tool in gimp for an hour. That's all you really need.

Rough estimate:

Thank you for your reply !

I looked at all your explanations with and without LUT, actually it's difficult to create the same thing without LUT, I tried with shaders "Lightroom.fx" and I got some good results, but I do not not happen to get the tones a little "fade" like him.

I'm motivated to try to create a custom LUT, but I've never used any editing software, I just downloaded GIMP, but how do I change the LUT by running a screenshot of the game for see the changes directly? It's possible ?

If I understand correctly, today the best thing to do is to create a LUT to have the final rendering approximate and then to "tweak" with some effects

Thanks again for your help mate, and sorry for my english

I started creating my own LUT but it's really not great:

Before : imgur.com/a/BIdqv
After : imgur.com/a/bFQdt
(On screens we hardly see the difference)

But it was almost ridiculous because I did not succeed that part (I start on Gimp)

""Set saturation scale to 1.2 in preparation for the next step
Made a new white layer, set mode to "HSL Saturation", and added a mask. Pasted a greyscale copy of image into mask. This controls saturation based on the image lightness / lumincance (whatever you desaturated with). Edit the mask with the value curve to fine-tune this (I was not for this example).""

I could record the steps on video real fast tomorrow if I remember.

It will be really great! You can send me the link.
But I really do not know how he did to get those colors ...

It's unscripted, uncut, and there's no voiceover, but here it is: a video of me trying to recreate the colors:

--Removed the music playing in the background because it got blocked in the US, which is where I'm assuming you're from. It only claimed one song and none of the others, so the deadlock failed.
Final product:

Anyway, that art style is far from what I normally do (you can probably se my unsuredness in the video). Here's how *I'd* go about tweaking AC origins using those same two pics I found on image search: