![]() He explained a different workflow in this post and it doesn't require the OpenColorIO plugin. Another option if you still need to keep your image in Linear ACEScg colorspace, in this case just delete the view transform group then export an EXR (to use in Nuke or Resolve or whatever) You can collapse the stack into one layer and go to 8 bit mode for final retouching. When you are done with your 32 bit adjustments you have 2 options. I will group the 2 LUTs now and name them View Transform. This is important for Linear workflow, if you will comp light AOVs This means you need to keep them always at the top of the stack, so any adjustments you do in 32 bit has to be under these 2 layers. it is very important to note that the 2 LUTs are basically your View Transform in Photoshop. The render now should exactly match what you have in the VFB Add another ColorLookup, and load Inverse_sRGB.csp We can export another LUT using these settings, Now we need to counter the sRGB view transform that Photoshop uses by default. Now lets load our LUT using a Color Lookup. After saving the LUT close the OpenColorIO UI, don't click on OK because we don't need the colorspace conversion. We are gonna export a LUT for our Output Transform. In my case it is Output - sRGB which is basically (ACES)sRGB View Transform. Input Space should be ACEScg, because my linear render uses ACEScg primariesĪnd for Output Space, pick your Output Transform that you used in the Vray Frame Buffer. Navigate to your ACES folder, in my case I'm using ACES 1.2 Now lets open up an ACEScg EXR and see how this works, navigate to the OpenColorIO plugin in the filter menu. Copy the file to your Photoshop plugin folderĬode: C:\Program Files\Adobe\Adobe Photoshop 2020\Plug-ins-You can access the plugin inside Photoshop under Filter menu Download OpenColorIO plugin for Photoshop CC here. Photoshop 16bit mode uses integer, not float, so if you load half-float EXR you will be in 32 bit mode, and if you downgrade to 16bit it will be in integer mode so they will not match. We will get around this issue by creating our proper view transform. This sRGB view transform you cannot change or control unfortunately. ![]() Photoshop reads Float 16bit/32bit EXRs linearly, then it uses its own sRGB view transform to display the image. Notes about how Photoshop deals with Linear EXRs: Thanks to Simon Bjork for his help with this thread. as they have proper color management and proper toolset for dealing with float EXRs. ![]() So this is more like a hack for working with ACEScg in Photoshop, typically you need something like Nuke, Fusion, Resolve or After Effects. Photoshop doesn't support OCIO and most of the tools don't work in 32 bit. This is a follow up on my ACES workflow in Vray for Modo In this thread I will talk about comping ACEScg renders in Photoshop.
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