ACES workflow in Vray for Maya Documentation?

V-Ray V-Ray Common Public
1

Is there a Documentation or Guide that shows exaclty how to use the ACES workflow in Maya with Vray?

I can’t get it to work properly. Or actually I can’t get it to work at all.
I activated OCIO in Maya, linked the config File and set the Rendering Space to ACEScg and view Transform to sRGB (ACES)

My image files are set like this:

HDRIs: “Utility - Linear - sRGB”
Diffuse Maps: “Utility - sRGB - Texture”
Displacement- and Normal Maps: “Utility - Raw”

After that I set the Frame Buffer like this:

input: ACEScg
Display Device: ACES
View Transform: sRGB

I also tried using the vrayOCIO textures for the conversion but no matter what I try the Output Image is always exactly the same.

2

Please note that OCIO corrections in VFB are only for preview purpose they don’t get saved in the output. One should apply those corrections in post-production.

3

I do understand that but converting all textures to AcesCG while also using AcesCG as Colorspace while rendering should give me a different Output. If not I could just render in Linear - sRGB and apply the OCIO Profile after the rendering but that isn’t really the idea behind the Aces workflow.