WB and FX were separate tabs whose only content was the same Lightroom-style develop column LIGHT already renders, so the rail carried three doors into one room. LIGHT now owns the whole column: white balance, tone, presence, the effects group (grain, dehaze, vignette) and the filters, in that order. The `wb` and `fx` TabIds, their rail entries, their `wbLabel()` helper and the now dead `tab.wb` / `tab.fx` i18n keys are gone; `ToolRail` documents eight tabs. Every continuous develop value that the UI exposes as a symmetric knob now runs -100..+100 instead of -10..+10. `paramDefs` gains the `HUNDRED` key set and the `deepen` helper, which widens a def's range and scales its accessors by ten, so the store keeps its -10..+10 internal scale and every stored look, DEFAULT_RECIPES entry and URL round-trip is byte-identical. Params with a meaningful physical scale (temperature in kelvin, exposure in EV-ish units, grain, grain size, hdf, vignette, rotate, crop) keep their own units. Highlight recovery no longer bends hue. The old knee clamped the per-channel gain into 0.55..1.35, which is a per-channel operation and therefore a hue rotation: on the flat skin patch it walked hue from 24 deg to 48 deg at HIGHLIGHT +100, and on a saturated 30:1 chroma ramp it desaturated toward black instead of toward white. The shader now caps the pixel's distance from its undersaturated knee point while preserving the direction of that offset, i.e. it scales chroma and keeps hue, then clamps into gamut. Verified: - `npx tsc --noEmit` clean; `npm run build` clean. - `node scripts/highlight-knee-check.mjs` (pins the new shader source and twin-tests 135 knob combinations) ok. - Existing checks re-run green: `auto-tone-check`, `half-check`, `white-level-check`, `preview-match-check`, `library-check`, `scan-nav-check`, `roll-walk-check`. - Live browser pass: rail shows exactly the seven expected tabs with no WB or FX; LIGHT renders 5 panels / 23 `data-key` knobs; 12 knobs report `min=-100 max=100`; everything else keeps its own range. - Highlight hue measured on ten flat colour patches: HIGHLIGHT -100 gives a hue delta of 0.00 deg on every chromatic patch; HIGHLIGHT +100 stays within 0.22 deg (sky) and 0.28 deg (magenta) wherever chroma survives, and the patches the ramp intentionally drives to white arrive fully neutral. Greys stay neutral (channel spread <= 2/255) at every knob setting. Skin patch before/after: 23.94 deg -> 0.00 deg. ponytail: temperature (2500-10000 K), exposure (+-10 units at 0.25 EV each), grain, grain size, hdf, vignette, rotate and crop deliberately keep their own scales rather than the blanket -100..+100; widen them the day a user asks for more range, not before. Hue assertions live in the flat-patch check because real-photo measurements pick up 2-4 deg of resample drift from the snapshot pipeline that has nothing to do with the shader. Co-authored-by: PenguinHarness <noreply@penguin.local>
RecipesCam
RecipesCam is a camera and photo-editing app built around recipes — reusable
looks that carry a film simulation plus a full set of adjustments. You shoot or
open a photo, dial in a look, and keep it as a recipe you can apply again, share
as a .recipe file, or save to your account.
It ships twice from one repository: a React Native (Expo) app for iOS and
Android, and a self-contained web build under docker/ that runs the same
render pipeline in the browser.
What it does
- Shoot with a recipe applied. Live viewfinder, GPS-tagged captures, and the recipe baked into the saved file.
- Film simulations. Built-in looks — PROVIPES, VELVIPES, CLASSIC CHRIPES, CLASSIC NEGIPES, ASTIPES, ETERNIPES, ACRIPES, B&W HIGH CONTRAST and the LC STREETLIFE pair — each with its own grain and tone curve.
- The full adjustment set. Exposure, contrast, highlights and shadows, saturation, colour temperature, clarity, grain, and an HSL mixer with a colour picker that samples straight off the photo.
- Geometry. Crop to a fixed ratio or free-form, quarter turns, and a straighten ruler, plus printed frames (classic border, retro instant, wall frame portrait/landscape).
- Finishing. Watermark and GPS stamp, EXIF carried through the export, JPEG written with a proper 300 DPI JFIF header.
- On-device upscaling. A Real-ESRGAN pass runs locally when an export asks for more pixels than the source has — no server sees the photo.
- Recipes. Save, favourite, export and import
.recipefiles; the web build keeps them in your account, the phone build also keeps them on device.
The two builds
| Build | Where | Stack |
|---|---|---|
| iOS / Android | repo root | Expo + React Native, @shopify/react-native-skia for the render pipeline, NativeWind for styling |
| Web | docker/ |
Vite + React, CanvasKit (canvaskit-wasm) for the same pipeline, Fastify + SQLite API for accounts and recipes |
The render engine is shared by design: the web build compiles the app's own
src/utils/* and type definitions unchanged, with @shopify/react-native-skia
aliased to a CanvasKit shim (docker/frontend/src/engine/skiaShim.ts). A look
looks the same on both because it is the same code.
Running the web build
cd docker
cp .env.example .env
docker compose up -d --build
# → http://localhost:8090
Photos never leave the browser: grading, framing, watermarking and JPEG
encoding all run in the visitor's tab; the API only stores accounts and recipe
JSON. See docker/README.md for the layout and the proxy setup.
Running the app
npm install
npx expo start # Expo Go / dev client
npx expo run:android # or run:ios for a native build
Repository layout
App.tsx, src/ the Expo app: screens, tool rail, viewfinder, shaders
docker/ the web build (frontend + API + compose file)
frontend/shared/ vendored copies of the app's types and utils
frontend/src/engine/ CanvasKit shim, export engine, super-resolution
docs/ privacy policy
THIRD_PARTY_NOTICES.md licences of the bundled fonts, models and libraries
Licence
See LICENSE and THIRD_PARTY_NOTICES.md.