Two LUTs for Substance Painter(v2.5+) containing the ACES RRT and sRGB ODT to match other renderers more closely.
Both LUTs assume a sRGB working space and have no impact on the materials or textures- they are limited to Painter's viewport only.
In order to use them correctly, Painter's Log tonemapper must be enabled. Activate Post Effects and Tone Mapping, restore defaults, and set the Function to Log, then assign the Color Profile.
ACES_Standard_Log contains the default RRT and ODT and should resemble viewers using reference ACES(full and approximated) as the tonemapping operator, such as Unity and Toolbag.
ACES_UE4_Log is designed specifically with UE4 in mind and includes a similar modification on top of the standard RRT that's present in UE4*.
Thanks to the always helpful ACESCentral community and the numerous discussions on the topic. See additional images here: artstation.com/artwork/mrqd8
*Newer versions of UE4 contain additional transforms enabled by default that are not in these LUTs. For accurate comparisons between UE4 and Painter, set Blue Correction and Expand Gamut to 0.0 in the camera or Post-Process Volume > Color Grading > Misc.
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