Chaos Corona within ACES color management

[piotrus3333]

https://youtu.be/LKNlHoKOAtU

LUTs attached:

edit: added mP_CoronaACESsplit_aces1.3rgc.zip

[Okmijun]

Thanks!

[maxdaiber]

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.

[piotrus3333]

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.

[lupaz]

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.

[maxdaiber]

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.

[piotrus3333]

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.

[piotrus3333]

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).