PS "inspired" feature to load and save curve control points. If PS acv is not free it maybe it can use .rtc from RawTherapee like this: ------------ Spline 0 0 0.098 0.055 0.207 0.215 0.273 0.334 0.336 0.461 0.461 0.67 0.547 0.776 0.625 0.847 0.699 0.897 0.785 0.94 0.863 0.97 0.935 0.99 1 1 ---------- Some code available here: https://github.com/Beep6581/RawTherapee/blob/dev/rtgui/curveeditorgroup.cc https://github.com/Beep6581/RawTherapee/blob/dev/rtgui/curveeditorgroup.h
Note: the same curve file format (and saving/loading code) should be used for all three suggested options: - curve adjustments (bug 387352 (this one)) - global pressure curve - brush editor sensor curves (bug 391927, related: bug 401496)