Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Corona Goodies - User Contributions => Topic started by: piotrus3333 on 2022-07-14, 18:35:32

Title: Chaos Corona within ACES color management
Post by: piotrus3333 on 2022-07-14, 18:35:32

https://youtu.be/LKNlHoKOAtU (https://youtu.be/LKNlHoKOAtU)

LUTs attached:

edit: added mP_CoronaACESsplit_aces1.3rgc.zip

Title: Re: Chaos Corona within ACES color management
Post by: Okmijun on 2022-08-09, 13:13:25

Thanks!

Title: Re: Chaos Corona within ACES color management
Post by: maxdaiber on 2022-08-31, 20:22:46

Hi Piotrus,

I am trying to figure out what you are doing here to implement it in nuke, but I can figure it out.

We are trying to find a way to replicate the Corona Aces OT on nuke so we can use converted cxr to exr files Nuke.

Title: Re: Chaos Corona within ACES color management
Post by: piotrus3333 on 2022-09-01, 11:59:13

Quote from: maxdaiber on 2022-08-31, 20:22:46

Hi Piotrus,

I am trying to figure out what you are doing here to implement it in nuke, but I can figure it out.

We are trying to find a way to replicate the Corona Aces OT on nuke so we can use converted cxr to exr files Nuke.

ACES OT is basically lin srgb to display srgb transform from ACES OCIO.

Title: Re: Chaos Corona within ACES color management
Post by: lupaz on 2022-09-01, 15:37:26

Quote from: piotrus3333 on 2022-09-01, 11:59:13

Quote from: maxdaiber on 2022-08-31, 20:22:46

Hi Piotrus,

I am trying to figure out what you are doing here to implement it in nuke, but I can figure it out.

We are trying to find a way to replicate the Corona Aces OT on nuke so we can use converted cxr to exr files Nuke.

ACES OT is basically lin srgb to display srgb transform from ACES OCIO.

I don't know much about ACES and OCIO. But the current ACES LUT that comes with Corona behaves a little like Reinhardt. At least with some highlights. It desaturates skies for example.

Title: Re: Chaos Corona within ACES color management
Post by: maxdaiber on 2022-09-16, 17:25:41

Quote from: piotrus3333 on 2022-09-01, 11:59:13

Quote from: maxdaiber on 2022-08-31, 20:22:46

Hi Piotrus,

I am trying to figure out what you are doing here to implement it in nuke, but I can figure it out.

We are trying to find a way to replicate the Corona Aces OT on nuke so we can use converted cxr to exr files Nuke.

ACES OT is basically lin srgb to display srgb transform from ACES OCIO.

I have worked with Aces in vray, and I always managed to work everything out in nuke fine, but I guess that i don't understand Aces in depth, I just know the workflow.

I am still trying to figure out what you mean when you say is just "lin srgb to display srgb transform" and how to apply it.

Title: Re: Chaos Corona within ACES color management
Post by: piotrus3333 on 2022-09-17, 08:30:47

it would be the same setup in nuke as with VRay but instead of ACEScg input you pick linear srgb input in OCIO node. and sRGB output.

Title: Re: Chaos Corona within ACES color management
Post by: piotrus3333 on 2023-02-27, 00:17:06

update to the original post: mP_CoronaACESsplit_aces1.3rgc luts.

basically ACES OT updated with ACES 1.3 Reference gamut compress (blue light artifact fix from ACES 1.2).