- media color primaries/transfer tags now flow from the FFmpeg probe
through VideoParams into Footage::get_colorspace_to_use(); precedence
is user override > media tags > project default
- export nclc tags derive from the output colorspace (PQ/HLG/BT.2020,
P3, sRGB, Rec.601, Rec.709) instead of hardcoded BT.709
- new OCIO Color Grading (Log) node (lift/gamma/gain) and White Balance
node (kelvin temperature + tint, HDR-safe)
- LUT whitelist extended to 9 OCIO-supported formats
- waveform scope gains an RGB parade mode (GPU and software paths)
- tests updated for the new colorspace precedence
- Add a global LUT library: user-configurable directories (new
Preferences > LUT tab) scanned recursively for .cube/.3dl files; LUT
node file pickers offer the library dirs as sidebar shortcuts via a
'lut_library' input property handled by the param view bridge
- OCIOLutNode no longer fails silently: missing files, unsupported
extensions and OCIO load errors are recorded in last_error() and
surfaced in the status bar (input still passes through for rendering
safety)
- ColorDialog: re-enable the display -> reference conversion using
ColorProcessor::kInverse with a validity guard, and re-enable the
Display tab in ColorValuesWidget; covered by a round-trip regression
test proving the old OCIO inverse crash no longer occurs
- OCIOGradingTransformLinearNode: enforce the OCIO clampWhite >
clampBlack invariant per frame in Value() so keyframed/connected
values cannot produce invalid grading transforms, and constrain the
white clamp UI minimum whenever the black clamp is static
- Regression tests for LUT extension checks, direction switching, node
error reporting, LUT library scanning, display inverse round-trip and
clamp enforcement