One photo can show too little of a colour for its own fit: a lime shirt
covering a few dozen proxy pixels next to foliage at the same hue stayed
yellow (hue 68 deg vs the JPEG's 82 deg).
- `lightcraft-cli calibrate [--max N] [--out DIR] FOLDERS...` pools the
colour pairs of many ARWs per model (each against its embedded JPEG,
192 px proxies, <= 4000 pairs per photo) and fits one matrix from
white-balanced camera RGB plus a hue/saturation/value table.
- Profiles live in $LIGHTCRAFT_CAMERA_PROFILES or
<config>/camera-profiles/<model>.json; validated on load, damaged files
ignored with a warning, part of the render cache keys.
- Photos of a profiled model take its colour and fit only their own tone
and chroma curves; the acceptance gates still apply.
- The table fit buckets samples by hue and runs nodes in parallel; the
app's config_dir moves to the engine.
Profile from 300 Feb-Aug ILCE-7M4 photos (2 min); 29 held-out September
photos: mean dE vs camera JPEG 3.54 -> 3.10, saturated 6.41 -> 5.20;
the shirt's hue 68 -> 82 deg (JPEG 81.5).
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
A sunny ILCE-7M4 waterfall shot rendered yellow: sunlit rock came out
cream, +4 b* in the brightest fifth of the picture. Camera JPEGs make
shadows up to 1.4x more colourful and bleach highlights to 0.1-0.3x
(a per-channel tone curve), which a luminance-only curve can't do.
- CameraTone gains an 8-node chroma-by-display-luminance curve, fitted
per file (bright pixels included) and kept only when it lowers the
held-out error; applied after the tone map on CPU and GPU, keeping
luminance. Old smart-preview headers load with an identity curve.
- The hue/saturation table gets an sRGB-encoded value axis: dark yellows
had to turn toward orange while bright yellow-greens turned toward
green. It is applied after the baseline exposure, as it is fitted.
- Matrix-only and matrix+table looks are completed (tone, chroma) and
compared in gamma-encoded values; acceptance gates stay linear.
29 local ARWs vs their camera JPEGs: mean dE 4.23 -> 3.54, every file
closer, saturated areas 7.65 -> 6.41. Render cache v10.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
A global 3x3 matrix can't follow the camera's hue-dependent rendering:
on an ILCE-7M4 photo of a lime shirt among grey rocks the best matrix
rendered the shirt olive (16 deg hue error), since the few saturated
pixels carry little weight and a matrix fitted to them breaks the rest.
After the matrix, fit a 72x5 hue/saturation table (DNG ProfileHueSatMap
layout, linear ProPhoto) to the residual hue shifts and saturation
ratios: kernel-weighted per node, shrunk to identity where samples are
sparse, identity at saturation 0. It preserves luminance (the tone curve
owns it) and is kept only when it lowers the held-out error.
28 local ILCE-7M4 ARWs: mean dE vs camera JPEG 4.74 -> 4.27, none worse
overall; the shirt's hue error drops to 6-8 deg. Render cache v9.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Sony bodies from before ~2017 (RX100–RX100M5, RX10, NEX, SLT, ILCE-6000,
A7/A7II/A7RII, ...) write no plain 0x7313/0x7310/0x74c7 tags in the raw IFD,
so the decoder used unit WB multipliers (strong green cast, e.g. the CC0
DSC-RX100M3 sample), black 512 (800 on 1-inch sensors), and kept padding
columns at the right edge.
- White balance: WB_RGBLevels from the maker note's enciphered Tag2010
block (layouts per ExifTool's Tag2010a..i tables; byte substitution
p^3 mod 249 checked black-box on 15 CC0 files: SonyISO matches Exif ISO,
ILCE-7M3 levels match its plain 0x7313).
- Black level: recovered from the encrypted SR2SubIFD by known-plaintext
analysis (constant key in every file; RX100M6/ILCE-7M3 plain 0x7310 as
plaintext; 8 keystream bytes at offset 2510, plausibility-checked).
- Crop: DNG DefaultCrop or the maker note's FullImageSize.
- "12-bit uncompressed" ARWs hold 14-bit-scale data: black/white follow it.
- Render cache version bumped; corpus manifest + corpus test, unit tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The Japanese fonts (BIZ UDPGothic Regular/Bold for the UI, BIZ UDMincho for text
watermarks; #110, #114) now come from storytold/craft-fonts instead of assets/fonts/.
- crates/engine/build.rs: the craft-fonts recipe. With CRAFT_FONTS_DIR set it embeds
the manifest's fonts as lightcraft_engine::CRAFT_FONTS (wasm32: BIZ UDPGothic Regular
only, for the web size budget); unset, CRAFT_FONTS is empty. Local files only, no
network; craft-fonts is not in any Cargo.toml.
- UI: theme::font_definitions adds the Japanese faces after Inter and egui's defaults
in every family (BIZ UDPGothic first, Bold first for semibold). About box lists the
embedded families.
- Watermarks: Inter, then the craft-fonts Japanese faces (Mincho first).
- Removed BIZUDPGothic-Regular/Bold.ttf, BIZUDMincho-Regular.ttf and their OFL files,
and their ATTRIBUTION rows; added an attribution row for craft-fonts as an optional
build input; NOTICE updated.
- Tests: Japanese glyph tests use CRAFT_FONTS and skip without it; new tests for
Japanese in the UI with craft-fonts and for the UI and watermarks without it.
- CI: the FreeBSD job builds/tests with craft-fonts. Releases check out craft-fonts at
a pinned commit, build with CRAFT_FONTS_DIR + CRAFT_FONTS_REQUIRED=1, and ship the
fonts' OFL licences (plus NOTICE) in every package.
- Docs: AGENTS.md, CLAUDE.md, README, docs/web.md, docs/localization-ja.md, ROADMAP,
parity.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Lightroom-converted DNGs carry their camera profile's ProfileHueSatMapData1/2
and ProfileLookTableData (and sometimes ProfileToneCurve). We used only the
colour matrices, so such DNGs rendered flat and muted.
- raw: new `profile` module reads the tags (DNG spec ch. 6: value-major,
hue-middle, saturation-minor tables, wrap-around hue, tri-linear lookups,
sRGB value encoding) from the raw IFD or IFD 0; malformed tags are ignored.
- engine: the raw loader applies the hue/sat map (interpolated by the same
illuminant weight as the matrices) before BaselineExposure and the look
table after it, in linear ProPhoto; a ProfileToneCurve becomes the source's
camera tone. Without one the standard base tone is kept.
- dngwrite keeps the look with the data (conversions, smart previews, merges).
- Render cache version 7.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
wgpu loads the driver of every backend in an instance's set while it
enumerates adapters. The compute device (crates/gpu) hard-coded
Backends::PRIMARY (Vulkan + DX12 + Metal) and ignored WGPU_BACKEND, and
was created from LightcraftApp::new on a background thread at launch, so
a crashing Vulkan driver (Intel UHD 630, igvk64.dll) killed the process
before the window appeared; the window (egui-wgpu) also listed Vulkan.
- lightcraft_gpu::backend: DX12 only on Windows (Metal on macOS, as before
on Linux) for both the compute device and the window;
LIGHTCRAFT_GPU_BACKEND=dx12|vulkan|metal|gl|auto|off, else WGPU_BACKEND;
backends missing from the build fall back to the default.
- The device is created only when GPU rendering is enabled, after the
first frame; the preference is applied before the window opens.
- Crash sentinel: gpu-init.marker in the settings folder around device
creation; if left behind, the next launch starts with GPU rendering off
and a notice saying how to turn it back on.
- Tests: backend parsing/selection, sentinel, window defaults, headless
snapshot with LIGHTCRAFT_GPU=0 / LIGHTCRAFT_GPU_BACKEND=off.
- Docs: gpu-pipeline.md (backends, env vars, troubleshooting), whats-new,
parity LR-BEHAV-GPU.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- safe_file: write policy documented (durable for what can't be recreated, atomic-only for
recreatable outputs); new write_atomic_nosync (temp + rename, temp removed on failure, no
file/folder sync); per-thread sync counter for tests.
- export::write_file (exports, renders, screenshots, merge previews, CLI/MCP) uses the
non-syncing writer; new write_file_durable keeps the sync for Edit a Copy (the TIFF becomes a
library photo). Catalog, sidecars, settings, DNG conversion/merges and smart previews stay
durable; the #93 original-overwrite guard is untouched.
- Import > Copy verifies the synced copy against the probe's content hash (SipHash-1-3/128 of the
whole file) instead of re-reading the source; byte compare when there is no hash. A file changed
since Review Import is now refused instead of imported with stale details. Move keeps its
byte-for-byte check before deleting sources.
- check_write_target: skip building the library-wide guard when nothing is at the target.
- write_new_unique keeps its read-back (DNGs replace raws; cheap next to encoding).
- Tests: no sync on the export path, durable writers still sync, Copy caught by the probe hash
(corrupt copy, stale hash, changed source); ignored timing test write_policy_timing.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Keep main's data-safety work (ui.json recovery and atomic writes, library-problem
window, off-thread file checks, import Cancel) and wrap its new strings: import
cancel/progress messages, the library-problem window and banner, and the new
Back Up / Restore Library menu items now have Japanese translations.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The 0.055 cap rejected half of the public Sony samples tried (ILCE-6400,
ILCE-6700, ILCE-7M4) although their fits were 1.5-3x closer to the
camera JPEG than the fallback and visibly better (mean dE vs the embedded
preview 19-26 -> 5-10). Unrelated previews stay rejected (synthetic test
lands at 0.115).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Resolve SourceRef::load_source against #104's offline fallback: a File
source keeps the decoder's SourceInfo; a smart-preview fallback has none.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Remove scripts/package-japanese-macos.py, the japanese-local feature and its
config/library/startup overrides, the settings.language migration, and the
local-build notes in the docs. Upstream library and config defaults (incl.
library::default_dir, which already honours LIGHTCRAFT_LIBRARY) are unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Re-applies fix/issue-104-ui-fs on top of the data-safety fixes (integrate/safety):
- availability cache: originals and smart previews are checked on a worker thread; the UI
answers from the cache (grid, Info panel, photo menu, Missing Photos view)
- import split into ImportJob::prepare (worker) + commit_prepared, with Cancel; Copy keeps
#96's verified copies
- Find Missing Photos: find_candidates (snapshot, no I/O) + plan_find_missing (all file I/O,
on a worker, never the session) with #105's matching rules unchanged (name+size+hash;
renamed by size+hash; single name+size; ambiguous look-alikes skipped and reported; files
already in use excluded). The plan is applied with library.findMissing {found, missing,
ambiguous}, re-checked against the catalog then: photos relinked meanwhile are left alone,
files now in use are not taken. library.findMissing {folder} still runs synchronously.
- Build / Discard Smart Previews with background: true runs on a worker with progress and
Stop, keeping #106's atomic writes, is_valid checks and `repaired` count (also in
library.previewProgress); the render worker's smart-preview fallback uses is_valid
- Rename preview planned on a worker (plan_rename_photos) on the same planning core as
Session::plan_rename_with (MoveFs, case-only respelling by file identity, #95)
- Local folder listing via fs_cached; tests_offline (slow injected probe, frames < 300 ms)
Tests: worker-planned Find Missing equals the synchronous command for a renamed + ambiguous
library; a plan is re-checked when applied; background smart previews repair a damaged proxy.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
