It´s great that Affinity Photo can work with 32 bit images and OCIO/LUTs.
--
A feature I miss is manually setting Color values numerically, like in 8 bit world via entering 128/128/128 to get a medium grey (RGB 0-255)
or RGB 0.5/0.5/0.5 (RBG 0-1) but also with full support for 32 bit files, both for color picking and manual color value entering.
--
A good test scenario is using any *.hdr from https://hdrihaven.com/hdris/ and trying to manually pick a color from the Color menu to paint into such a file.
--
Another test scenario would be to try and correctly paint a value/intensity, like trying to paint/match the intensity of the sun or a studio light.
--
It´s really hard to do any of this without numerical entries for picking a color/value and no numercial feedback about a sampled color from a 32 bit image.
--
Cheers,
tim