Fusion's Creator type tools are linear, with sRGB primaries. Just make sure your Frame Format settings in the comp preferences are set to at least 16-bit float (the default is 8-bit linear). I don't recall off the top of my head what the options are in the ACES OCIO config, but you definitely do not want to use sRGB as your source space.
The ACES workflow demands that all photography be converted to ACEScg prior to compositing. Output from renders should be in ACEScg to start with (although not all renderers support ACES directly, you can 'fake it' by preprocessing textures and lighting against the ACEScg plate). Once in Fusion, everything is just math, which is indifferent to your actual color space, so long as it's all linear. If you have ACES coming in, you'll have ACES going out.
You should have a buffer LUT converting ACEScg to your monitor's color space.
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SirEdric wrote: ↑
Tue Jun 11, 2019 7:39 am
Hmmm...what version of Fusion is that?
ACES doesn't even show up in the dropdown of my OCIO-cs in Fu9...?
Apart from that, if something gets clipped, did you make sure to process at least 16float?
That comes from the ACES OCIO config file. If you have the config set up on your system, you'll see a lot of new options in the OCIO tools.