It seems that it was double transforming every input 8bit sRGB file leading to my original completely gamma-incorrect example images at the start of this post. In fact, by having it enabled in settings it lead to some very strange transforms happening at rendertime. OCIO configuration is unsupported in Redshift for maya currently as previously stated, however the assumption has previously that it should still be enabled in colour management, and that pre-converting input textures is enough to overcome this issue. Issue one - Maya/Redshift OCIO Implimentation: Many thanks to everyone who chimed in here, have managed to get it all solved, and get the most accurate colour rendition I’m likely going to get through the ACES pipeline (I hope! if anyone has anything extra to add or any amendments please do!) - Thought it best to lay out everything on the table here for anyone wondering what was up in case this pops up in the future! Done some extra playing around with transforms too to clarify some further things for a correct ACES pipeline, hopefully it’ll help firm up some things for anyone else wondering too. Seems I can only upload one image as I’m a new user, but have put up the other examples on imgur links. Thanks for the conmments, I ended up resolving this myself but am writing out my explanation here to check with guy guys if it sounds correct! Was written to send to some people at work, but please comment if there’s anything wrong I cover. Hopefully someone here might have answers to some part of this workflow as I’m clutching at straws currently. If I’m unable to change it, how can I have colour accurate 8bit files and read RAW data textures (Roughness and such) without having one or the other being mangled in the transform? This is mostly a Redshift question here, but I’ve asked on the Forums over there too. My second worry is that I don’t know how exactly my files are being read into redshift, and what it’s assuming they are if I can’t change within the read nodes. I’m fully expecting some colour change from 8bit images into ACES space, but these changes are far far too much and I’m obviously missing some large part of the pipeline here. These are all transforms recommended by people in various guides and tutorials I’ve seen for this workflow online, none of which gives anywhere near accurate rendition. Attaching an image of my photoshop view (Left) and 4 different pre-converted textures as seen in Redshift (right) via a Diffuse filter render pass, with an sRGB (ACES) colour transform enabled in my render view.
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