How does RT editor window rendering intent work? Is it broken in latest dev source 5.8-3107-gd92f5f7ca, or am I misunderstanding something?
I am using latest dev source 5.8-3107-gd92f5f7ca on Debian 11.4. using a calibrated wide gamut EIZO monitor. In the Debian GNOME settings | color, i have selected the ICC profile from EIZO screen calibration. In RT have the ‘system default (from GDK)’ selected in RT main edit window. This sets up a color managed system. I have almost always used ‘relative colorimetric’ as RT main window editor rendering intent.
In the RT main editor window there are combo boxes for monitor profile, rendering intent, soft proofing and highlight pixels (out of gamut).
Rendering intent is the second combo box from the left in the picture above.
For a RAW file (Canon 5D mk IV CR2) do we have this proces?:
RAW → RT working profile (ProPhoto) → Monitor profile
and RT rendering intent (perceptual, relative colorimetric, absolute colorimetric) converts between the RT working profile and the Monitor profile? This means that if my RAW-file + RT edits and settings push some colors out of monitor gamut then I might get different visual rendering results in RT main editor depending on ‘rendering intent’ settings. Is this correct?
An attempt to test:
In my test, if I highlight pixels out of gamut relative to the monitor profile (for a very saturated set of colors in a RAW file) I do get out of gamut warning relative to monitor profile. (I use the button with the exclamation mark !. Edit: ‘soft proofing’ button is not active.
However changing ‘rendering intent’ from perceptual to relative colorimetric to absolute colorimetric, does not change anything for me in terms how the RT main editor renders the picture. I understand the changes could be subtle and not so obvious, but I ought to be able to detect something.