Natural Skin Tones in Darktable (AgX) — The Open Source Portrait

Описание: Skin tones drifting orange in Darktable? Highlights going magenta when you push the exposure? In this video I walk through the fix step by step — using Pat David's open-source portrait RAW file (Mairi, CC BY-NC-SA), so you can download it and follow along exactly.
The key is two controls inside the AgX Primaries tab that most tutorials never show you: red attenuation and red rotation. Combined with a correct white balance in Color Calibration, they fix the orange drift without touching saturation sliders or reaching for a LUT.
No Filmic, no Sigmoid, no plugin. Pure AgX.
What we cover:

Why skin drifts orange in Darktable (and why it's not AgX's fault)
White balance in Color Calibration — the foundation everything else depends on
AgX: applying the sigmoid-like smooth preset and auto-tuning levels
AgX Primaries: red attenuation, red rotation, and reverse all (after tone mapping)
Preserve hue in the look section — when it helps and when to leave it alone
Color Balance RGB and Color Equalizer as optional finishing steps

Download the RAW file (free, CC BY-NC-SA) — by Pat David:

https://patdavid.net/2013/03/the-open...