Is there really no way to add a LUT in copernicus other than adding a single file to the viewer via the display settings?

One of the things that was exciting about the slap comp feature what that for simple shots it has the potential to avoid our artists having to go into Nuke to pull together a slap comp or view their renders through the individual shot LUTs.

But in order to recreate the shot LUTs we need both the ability to transform color space (OCIO transform) and the ability to read 1D and 3D LUTs. We used to at least have the Lookup COP. Any way to do that currently? Or in the works?

Good point.Had the same need, so I built a small HDA that handles OCIO transforms plus 1D/3D LUT files.

Added it to my MotionCOPs toolkit, free to use:
https://github.com/Boning1011/motion-cops/blob/main/otls/cop_boning.mc_lut_apply.1.0.hdalc [github.com]