In the docs it explains that UE can store values 0 - 100 (or more depending on your scene) in an EXR. However my renders are getting clamped at 100 where values should be even higher.
I’m using the Movie Render queue
outputting to EXR 16bit half float
in color output I’ve disabled the tone curve, as well as on the cameras, that got me past the clamping at 1, I also disabled the “expand gamut”
if I output a pass like world position the values are of course well over 100, it is just the rgb that is being clamped.