View OCIO in IPR 2020.2

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Re: View OCIO in IPR 2020.2

Postby Fake Pilot » Wed Mar 10, 2021 3:33 pm

Fake Pilot Wed Mar 10, 2021 3:33 pm
Tried the workflow with ACES and After Effects. Just incredibly slow, can't work with it.
Not sure if it's the EXR in general still, or the ACES conversion or both.

Probably works better with Nuke or Fusion.
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Re: View OCIO in IPR 2020.2

Postby Creative_Sheep » Sat Apr 03, 2021 3:53 am

Creative_Sheep Sat Apr 03, 2021 3:53 am
whersmy wrote:Do you have a reference photo/render that illustrates your point? Or do you mean that you can have a low intensity HDRI letting light in the scene, and having extra smaller lights to fill the room? :arrow:


When you setup with a ACES workflow, since there is accurate energy going into the scene, you don't need to mess with extra lights etc. You're only concern is having the color workflow setup correctly. Remember color workflow using ACEScg in this case; is about giving enough colors as the Input display transform, accurate colors as in real life, more energy into the scene; realistic looking renders. From there you choose your output display transform, which is just sRGB or AdobeRGB or better yet, DCI-P3 or although still lacking in full gamut Rec2020 if your display can show more then atleast 80% of it's colors.
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Re: View OCIO in IPR 2020.2

Postby whersmy » Mon Apr 05, 2021 12:45 pm

whersmy Mon Apr 05, 2021 12:45 pm
I noticed that, I think it`s important to have a correct workflow from standalone to Photoshop/Post first..

I have been trying kind of every setting, but can`t get the image I get in Octane correctly exported still.
The image still looks washed/desaturated or highlights are burned when I take it into PS, but in the Octane viewport it looks delociously, scrumptious and lightful :D
What is still missing?? :|
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ACES_octane_PS_workflow.jpg
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Re: View OCIO in IPR 2020.2

Postby Creative_Sheep » Tue Apr 06, 2021 3:18 am

Creative_Sheep Tue Apr 06, 2021 3:18 am
whersmy wrote:I noticed that, I think it`s important to have a correct workflow from standalone to Photoshop/Post first..

I have been trying kind of every setting, but can`t get the image I get in Octane correctly exported still.
The image still looks washed/desaturated or highlights are burned when I take it into PS, but in the Octane viewport it looks delociously, scrumptious and lightful :D
What is still missing?? :|


As you mentioned, you should setup Photoshop for ACES. Photoshop was never designed for such large color gamut's, it's unfortunate. Although we can be thankful this what I said is irrelevant as you can setup ACES in Photoshop and experience ACES in Photoshop. As I mentioned, setup ACES in Photoshop, then the images should look the same in both Octane and Photoshop.

I'll be setting up ACES in Photoshop very soon, so if you need help; let me know.
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Re: View OCIO in IPR 2020.2

Postby whersmy » Tue Apr 06, 2021 9:15 am

whersmy Tue Apr 06, 2021 9:15 am
I`m digging into it right now, will post results if successful :geek:
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Re: View OCIO in IPR 2020.2

Postby k3xx » Fri Apr 09, 2021 7:46 pm

k3xx Fri Apr 09, 2021 7:46 pm
I would really appreciate some help with this topic.

I tried a few different scenes to test houdini/octane/aces workflow but cant get it right. The colors are wrong, greenish, over contrasty, dark. I must miss something.

Here is simple test scene, just a texture and an HDRI.
What I did:
- Set to OCIO env variable to ACES config file
- Convert texture and HDRI to Aces with PYCO colorspace converter, set gamma to 1
- Connect OCIO view node
- Octane ROP > intermediate colorspace = ACES2065, color space = OCIO, ocio color space role = ACES2065

Do I miss something?

Also I read this:
170566670_449449109670781_194729041631252930_n.png
170566670_449449109670781_194729041631252930_n.png (6.73 KiB) Viewed 1725 times

Here: https://chrisbrejon.com/cg-cinematography/chapter-1-5-academy-color-encoding-system-aces/
So why ACES2065 instead of ACEScg then?

Thanks in advance!
Attachments
texture.png
texture convert
hdri.png
hdri convert
houdinifx_UWbVPfOoNy.png
settings
houdinifx_qIGir8GiGt.png
settings
houdinifx_qIGir8GiGt.png (7.93 KiB) Viewed 1725 times
houdinifx_PSF5tQvJ3j.png
settings
houdinifx_0s7rtHsWiG.png
settings
houdinifx_0s7rtHsWiG.png (9.65 KiB) Viewed 1725 times
aces.png
aces
srgb.png
srgb
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Re: View OCIO in IPR 2020.2

Postby davidyannick_1 » Fri Apr 09, 2021 9:03 pm

davidyannick_1 Fri Apr 09, 2021 9:03 pm
k3xx wrote:I would really appreciate some help with this topic.

I tried a few different scenes to test houdini/octane/aces workflow but cant get it right. The colors are wrong, greenish, over contrasty, dark. I must miss something.

Here is simple test scene, just a texture and an HDRI.
What I did:
- Set to OCIO env variable to ACES config file
- Convert texture and HDRI to Aces with PYCO colorspace converter, set gamma to 1
- Connect OCIO view node
- Octane ROP > intermediate colorspace = ACES2065, color space = OCIO, ocio color space role = ACES2065

Do I miss something?

Also I read this:
170566670_449449109670781_194729041631252930_n.png

Here: https://chrisbrejon.com/cg-cinematography/chapter-1-5-academy-color-encoding-system-aces/
So why ACES2065 instead of ACEScg then?

Thanks in advance!

I have the same issue and same question
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