mirror of
https://github.com/storytold/lightcraft.git
synced 2026-10-29 20:48:33 -06:00
robmdunnandClaude Opus 5.5
6178021107
Nikon bodies from before ~2016 record no CropArea, so the decoder kept their whole sensor data, less trailing dark columns. Where that data holds masked lines above black or optical black, they were developed as a coloured or dark bar on that edge: the D7000 and D5100's 36 columns at ~600 (#976), the D800's 14 (#914, the top in portrait), and others. MEASURED_BODIES (crates/raw/src/vendor/nef.rs) now gives 36 model / data size / depth groups the frame of their camera JPEG inside the data: D7000, D5100, D800, D800E, Df, the D4's 12-bit mode, D3, D3S, D700, D300, D300S, D600, D610, D810, D4S, D5600, Coolpix A, D3000, D40X, D60, D80 and D2Xs. An entry matches model, data size and depth exactly; the measured white level becomes optional (only the D4's 14-bit mode has one). Bodies whose data holds only picture beyond the camera frame get no entry and render as before. `cargo xtask raw-frame FILE...` (crates/engine/examples/raw_frame.rs) measures a body: it aligns each raw's embedded camera JPEG with the sensor data (half-size luminance, gradient correlation, sub-pixel peak; weak, ambiguous or between-pixel peaks are flagged), counts the edge lines that hold no picture and reports what the decoder's crop keeps beyond the camera frame. It prints entries only with evidence: at least 3 clean files agreeing exactly, of the model (12- and 14-bit pooled) or, with at least one of its own, with sibling models of the same readout (data and JPEG size) that agree on the same frame. On the D7500, which records its CropArea, it finds that area exactly; it declines the Z f, whose JPEG is distortion-corrected. It works for any make whose raw embeds a full-size camera JPEG: on Sony, Canon CR2 / CR3, Pentax and Samsung files it finds the decoder's own crop (relative to the active area). docs/nikon-bodies.md surveys every Nikon raw on raw.pixls.us (98 models, 291 files; 138 CC0 samples measured): 22 models record CropArea; of the 88 groups without it, 36 have entries, 13 are fine, 25 could not be aligned and 7 do not decode. The D3200, D3100, D200, D50, D750 and Nikon 1 V1 / V2 are pending, each listed with the files it needs; the doc also describes how to add a body. raw-parity.md no longer claims every NEF coding but HE decodes. measured_bodies_are_consistent checks every entry lies inside its data and is listed once. The evidence is committed in docs/nikon-bodies/: headers.json (every file's raw size, depth and maker-note crop tags), samples.json (the 138 measured CC0 files with URL and sha256) and frames.jsonl (the tool's per-file results). `cargo xtask corpus --download nikon` fetches the samples (sha256 checked) so `cargo xtask raw-frame` reproduces every count. Fixes #976 Fixes #914 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
13 KiB
13 KiB
Gaps: where LightCraft falls short of Lightroom
Last reviewed: 2026-10-11 · Last updated: 2026-10-11 · Change: minor (Nikon edge bars on bodies without CropArea fixed, #976 / #914; gap 10 notes the survey) · Target: Adobe Lightroom Classic 15.5 / Lightroom 9.6
Every known shortfall, one entry each, ranked by user impact (how many Lightroom users hit it, and how hard it blocks them), then by effort. Agents pick work from the top (the first entry nobody is working on). When you close a gap, delete or shrink its entry, update its rows in parity-checklist.md, and the numbers in target-app-parity.md and ROADMAP.md if they move.
Hours are Opus 5.5 agent wall-clock hours (see target-app-parity.md).
B marks a gap that blocks beta.
Ranked
| # | Gap | Evidence | User impact | Hours | Doc |
|---|---|---|---|---|---|
| 1 B | Camera colour is estimated, not measured (LR-PROF-CAMERACOLOR). Raws start from a per-file fit to the camera JPEG, 4 bundled profiles or 52 spectral matrices; others use a neutral matrix (a black-and-white camera JPEG gives its tone curve only, #577) | ΔE vs camera JPEG 2.9–10 after fitting (raw-parity.md); 0 chart-calibrated models vs 1,500 Adobe Standard profiles | every raw shooter sees colour that is close but not Lightroom's; some get neutral-matrix colour | 50–90 | raw-parity |
| 2 B | CR3 beyond four verified bodies (LR-IMP-FORMATS): crx.rs refuses vertical-tile C-RAW, partial-subband and other plane coding, multi-tile 0x200 and adaptive low-frequency gains, and those files fall back to the preview; CR3 sRAW / mRAW and HEIF CR3 too. Verified: M50 / R100 / R8 / R5 Mark II. EOS R7 C-RAW (odd-height QP map) decodes since a45c2b66 and R6 Mark II C-RAW is reported working on 0.6.0, but neither is verified yet (no corpus test or recorded check) |
measured: Canon is the largest bucket (33% of photographers) and its share whose camera fully works is the lowest of the big four, 73%; 18 of 22 popular Canon bodies write CR3, 4 verified (raw-parity.md); R7 rule checked only on paired RAW / C-RAW captures (cr3.md) | +6.2 points of photographers whose camera works, the biggest single raw gain | 25–45 | raw-parity |
| 3 B | Render fidelity unmeasured (LR-BEHAV-RENDER-FIDELITY): tone, highlights, texture / clarity / dehaze, NR and sharpening are tuned by eye | no side-by-side suite; a retune needs a new process version (only V1 exists) | edits imported from Lightroom look different; the look "isn't Lightroom's" | 30–60 | raw-parity, process-versions |
| 4 B | Original-pixel detail at 100% (LR-VIEW-ZOOM, P0): Detail, Before/After, Compare and Reference are sharp at 1:1–8:1 (zoom windows, #323). Mask overlays and soft proofing still render the whole frame at the drawn size instead of a window: sharp up to the GPU texture side, but a full-size render per edit at 1:1 | checklist row 🟡 | editing with a mask overlay or soft proof on at 1:1 is slow on large files, and blurry past the texture side | 4–8 | ui-parity |
| 5 B | AI masks: Subject, Sky, People, Background, Landscape are heuristics; Object / Describe run SAM 3 but its download has no mirror configured | crates/segment; ai-masks.md; MASK rows 67% |
masking is how most Lightroom users edit today | 40–70 + model decision | target-app-parity |
| 6 B | Compressed ORF (every Olympus / OM body since ~2008) | measured: 66 of 78 Olympus / OM models preview-only; orf.rs refuses; OM bucket 3% of photographers, 3% of them fully work |
+2.6 points; best gain per hour of any raw gap (~0.2) | 8–15 | raw-parity (the two Olympus patents that describe the method) |
| 7 | Nikon High Efficiency NEF (HE / HE★ on Z 8, Z 9, Z 6III, Z f, Z50II, Z5II when set to HE) | named and preview only (#193); needs a pure-Rust JPEG XS decoder | +1.1 points (only shots taken in HE; lossless works on the same bodies); low gain per hour (~0.04), so not a beta blocker | 20–40 | raw-parity |
| 8 B | No lens profile database (LR-EDIT-OPTICS-PROFILE): only DNG opcodes, RW2 in-file distortion and Sony ILCE-7RM4A distortion | Adobe ships 3,635 lens profiles; we never use them | distortion / vignetting correction is a default step for many | 40–80 + calibration shots | raw-parity |
| 9 B | Tests don't run in CI on macOS, Windows or Linux x64: only FreeBSD runs cargo test; the others build packages |
.github/workflows/ (freebsd, packaging-lint, release, windows-arm64); the linux-riscv64 release job added in 0.6.0 (#844) runs only lightcraft-cli --version under QEMU |
regressions reach users on the main platforms; cargo xtask ci runs only locally |
6–12 | target-app-parity |
| 10 B | Per-model verification thin, plus cheap per-body decode fixes: 235 of 1,446 Adobe models verified (16%), ~42% of photographers on a verified body; Nikon 5 bodies verified, Canon 12. Cheap fixes: Z 6II packed 14-bit NEF (#769, PR #671), Sony A100 / F828 regression (#702), DSLR-A200…A390 / A850 12-bit ARW (#535) | measured: raw/coverage.tsv | per-body bugs (levels, crops, WB) surface only from users; Nikon crops of bodies without CropArea now surveyed and measured (nikon-bodies.md, D3200 / D3100 / D200 / D50 / Nikon 1 V1, V2 pending samples) | 25–45 | raw-parity |
| 11 | Enhance: Raw Details, Super Resolution; AI denoise without shippable weights or X-Trans | ENH rows 0%; denoise Bayer only, RawNIND weights GPL and opt-in | Fujifilm users get no AI denoise; nobody gets it out of the box | 30–60 + model decision | raw-parity |
| 12 | Content-aware / generative remove, detect distractions, reflections removal | REM rows 75%; patch synthesis missing | cleanup work goes back to Photoshop | 25–45 (+ generative model) | target-app-parity |
| 13 | Lightroom catalog migration is one-way and approximate: unsupported Adobe profiles / AI settings archived, history kept as data | lightroom-catalog-import.md | switching users lose some looks | 8–12 | file-format-parity |
| 14 | HDR display (EDR / Windows HDR); HLG; the headroom limit and SDR rendition from crs XMP (the HDR switch, HDREditMode, is read) |
HDR rows 70%; LR-VIEW-HDR-DISPLAY ⬜ | HDR editing works blind on HDR monitors | 12–25 | hardware-parity |
| 15 | Print module: custom packages, printer colour management (contact-sheet PDF only) | LRC-PRINT rows | Classic users who print | 25–40 | target-app-parity |
| 16 | Map view, Book, Slideshow module, publish services | LRC-MAP / BOOK / SS rows ⬜ | Classic users; publish services matter for Flickr / SmugMug workflows | 60–100 | target-app-parity |
| 17 | Tethered capture | ⬜ | studio photographers | 25–45 + cameras | hardware-parity |
| 18 | Video: playback, trim, global edits, export | VID rows 0% | users who mix stills and clips | 25–45 | target-app-parity |
| 19 | Plug-in ecosystem: no Lightroom SDK equivalent (export / publish plug-ins, metadata plug-ins) | ⬜ | pro workflows built on plug-ins (LR/Enfuse, Jeffrey's exporters, Negative Lab Pro) | 40–80 + owner decision | target-app-parity |
| 20 | Long-tail raw formats: compressed SRW, ARQ pixel shift, IIQ, Hasselblad compression, X3F, CRW, MRW, ERF, KDC, DCR, MEF, GPR, old FinePix | raw-parity.md | small user share each | 45–85 | raw-parity |
| 21 | Localization: 9 of 15 shipped languages partial (74–99% of catalog messages), lower-layer errors English; Hindi, Arabic, Indonesian, Korean, Vietnamese absent; no RTL or complex shaping | measured from catalogs | non-English users see mixed English | 55–90 (shipped to full); 145–255 (five new) | localization-parity |
| 22 | Pen pressure, OS monitor profiles, follow-window colour | hardware-parity.md | brush users with tablets; multi-monitor setups | 11–22 | hardware-parity |
| 23 | Accessibility audit with screen readers; canvas tools keyboard-reachable | LR-BEHAV-ACCESS 🟡 | blind and low-vision users | 10–20 | ui-parity |
| 24 | Brush live preview and masking feel (#517, #518); Feather / Edge mask refinement (15.5) | issues | masking feels slower than Lightroom | 8–12 | ui-parity |
| 25 | File writes: lossy DNG, Render to DNG; AVIF import (PSD export landed with Edit in PhotoCraft, #953) | file-format-parity.md | interchange edge cases | 21–37 | file-format-parity |
| 26 | Performance at scale: 85k-photo library opens in 1.7–4.7 s; 100k grid test pending; colour NR at half resolution | ROADMAP log, gpu-pipeline.md | large-catalog users | 15–30 | target-app-parity |
| 27 | Windows / Linux runtime coverage: Windows installer UI unverified on Windows (#79); GPU path proven on Apple only; the Linux riscv64 tarball (new in 0.6.0, #844) is cross-compiled and never run beyond a QEMU smoke test | ROADMAP, issues, release.yml |
non-Mac users find bugs first | 15–30 | hardware-parity |
| 28 | Small Classic shortcuts and keys: rating [ ], flag cycling, filter-bar keys, F1 help, panel keys (Tab, F5–F8) |
ui-parity | Classic muscle memory | 4–8 | ui-parity |
Beta-blocking gaps (B) total ~230–430 h; with the stability and platform work they need around them, ~340–600 h to beta (incl. 40–80 h for the ~92 open core-path user issues) (see target-app-parity.md).
Gaps by kind
- Feature: 5, 8, 11, 12, 13, 15, 16, 18, 19
- UI / UX: 4, 23, 24, 28
- File format: 2, 6, 7, 10, 13, 20, 25 (raw ones in raw-parity.md)
- Hardware: 14, 17, 22, 27
- Localization: 21
- Quality / fidelity: 1, 3
- Stability and platforms: 9, 26, 27
Closed recently (kept for calibration)
- 2026-10-11: Nikon edge bars on bodies without CropArea (#976, #914): 36 model / size / depth groups measured.
- 2026-10-10: Nikon lossy-after-split NEF (#633), ORF 12.8 bpp (#651), HDR gain map / PQ AVIF / float TIFF export (#646), activity stack (#345), JPEG XL export (#247).
- 2026-10-09: EOS R7 C-RAW with an odd-height QP map (a45c2b66; part of gap 2), HEIC in release builds (#609), Samsung uncompressed SRW (#459), contact-sheet PDF (#563), Ukrainian UI (#564), Sony ILCE-7CR profile.
- 2026-10-08: CR3 CRX lossless and C-RAW (#279), Fujifilm compressed RAF (#282), AI RAW denoise (#384), Lightroom catalog import (#218), German, Spanish, Russian UI.
- 2026-10-07: RW2 every format (#215), faces recognition in pure Rust (#174).
- 2026-10-05: compressed NEF (#86). The older history is in ROADMAP.md.
Revision history
| Date | Change | Summary |
|---|---|---|
| 2026-10-11 | minor | Nikon edge bars on bodies without CropArea fixed for 36 model / size / depth groups (#976, #914; nikon-bodies.md); gap 10 notes the survey and the pending bodies; gap not closed |
| 2026-10-11 | minor | Reviewed against main after 0.6.0: CR3 entry names the CRX variants crx.rs still refuses and the R7 / R6 Mark II C-RAW state (decoding, not verified, so the measured numbers don't move); CI and Windows / Linux entries note the riscv64 release build (#844); R7 fix added to Closed recently. Panel docking (UI.9, #869) closes no listed gap |
| 2026-10-11 | minor | Camera colour entry: raws with a black-and-white camera JPEG take its tone curve (#577); gap not closed |
| 2026-10-11 | minor | Gap 4: Compare and Reference views get zoom windows per pane (1:1 was a 2,560 px render magnified); overlays and soft proofing remain, 8–15 h → 4–8 h |
| 2026-10-10 | minor | Compressed ORF entry links the two Olympus patents that describe the method |
| 2026-10-11 | minor | Gap 14: crs:HDREditMode is read from XMP (#663); the headroom limit and SDR rendition still aren't |
| 2026-10-11 | minor | Gaps 2 and 10 shrink: EOS R5 Mark II CR3 decodes and is verified (fourth CR3 body, Canon 12 verified, 235 models, ~42% on a verified body); CR3 gain +6.5 → +6.2 points |
| 2026-10-10 | minor | RAW gaps re-measured model by model (raw-parity.md): CR3, compressed ORF and verification entries carry measured shares; HE NEF no longer a beta blocker (+1.1 points for 20–40 h); verification entry absorbs the cheap per-body fixes (#769, #702, A200 series) |
| 2026-10-10 | minor | Beta total raised to 340–600 h to include the ~92 open core-path user issues |
| 2026-10-10 | major | Created from the checklist's Top gaps (whose items 1–2 had been duplicated by a merge) and ROADMAP's Where we stand; re-ranked; added evidence, impact, hours and beta flags; added platform-CI, lens-database, HE NEF and localization gaps |