ACES for Nuke via OCIO: Part 1 Initial Setup

So how to start with enabling OCIO/ACES? First goto your project settings.

Change the color management from Nuke to OCIO.

Now pick your config.  I would suggest you start with aces_1.0.1.  The other versions of ACES are there for backward compatiblity for people who did shows in ACES before it was finalized.

As you can see now all the Read nodes will update with all the colorspaces from the ACES OCIO profile.  Previously in Nuke 9 or earlier you had to turn on "raw data" and use the OCIO nodes to do all your conversion.

Same as the read nodes, the write node also gets the OCIO treatment.  

This knobs also decide which colorspace metadata gets written to certain formats such as quicktime so when you for example write out an AlexaLogC and read it back in, the Read node will properly know what colorspace the file was written as.  

*** beware of using the "raw data" knob as it will incorrectly write "linear" to the colorspace metadata for quicktimes.

All your default LUT settings defaults have been moved from "Project Settings > LUT" in Nuke 9 and earlier to "Project Settings > Color" in Nuke 10.  It was also combined with the previous OCIO tab.  

The default LUT settings for ACES 1.0.1 are not ideal for most people starting out with ACES.

So the example below is not perfect but it gives a better suggested set of defaults to use for someone transitioning an existing Nuke pipeline to ACES/OCIO.

In the next tutorial we will explain what all the default LUT settings do and what you should choose for your pipeline.