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In this post I will explain how to setup Mari to work with ACES but some explanations could also help to understand the traditional "sRGB" workflow as well as how Mari works under the hood.
You will need some basics about what is ACES and how ACES is working. For example I'm using terms as IDT or ODT that you should be aware of. (If not there is some useful links at the end.)
I am also using two important term that need to be explained:
Scene-referred
: In very rough we could say "RAW" values. Linear light values are directly proportional to the objective, physical light of the scene exposure.Display-referred
: Relative to the Display, for example in a display-referred workflow using a value of 1.0 means the maximum value at the Display while in scene-referred, this value of 1.0 could be transformed to any other value at display state.This post also assume that we are using the nodegraph and not the layers.
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⚠️ WARNING
In my examples i'm using the Output - Rec.709
ODT which might not be the case for you so you might need to replace it with Output-sRGB
or any other ODT you are using.
Quick reminder that the ODT that you are supposed to use should be choose in accordance with your monitor's calibration. In my case I am using Rec709 just cause this is a requirement for the production i'm working on.
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