Experimenting with Aces in Cinema 4D and I think I use the correct work flow. Using Aces 1.03 I add the path to the OCCI when setting Arnold colour space and then set input to srgb and output to acescg then set the IPR to output srgb.
I set my volumes up to render a pass and then take the beauty and volume pass into fusion and add a Color Space Transform. Acescg - Srgb
However the pass and the beauty volume renders are very different. Is this because I have missed something or is the Aces working different on the volume pass.
All renders are 32bit EXR.