3dtours
610a274103
LibRaw is deliberately kept out of white balance and tone here, so a RAW opened in the studio lands on the neutral demosaic — while the JPEG on the back of the camera carried the body's own rendering. cameraMatch.ts holds that difference as one 3x3 per body, fitted offline against the camera's own preview of the same frame and applied in the develop shader right after the sRGB encode. Measured on held-out blocks, mean CIEDE2000 against the camera preview: GR III 5.99 -> 4.28 X100V 8.19 -> 4.22 GR II 11.68 -> 9.73 X100S 7.41 -> 7.27 X-T3 9.03 -> 6.12 The matrix is fitted luma-preserving and the shader holds that exactly, so the profile moves colour and never exposure: a preview that came out dark stays dark, by design. What is left over is largely high-frequency (sharpening, noise reduction, demosaic) — the error keeps falling as the blocks grow. The fits are weak evidence on their own. Validation on colour charts came out poor: the daylight chart is an Adobe DNG Converter export that aligns to the body's own develop at only 0.785 correlation and gets worse with the profile applied, and the tungsten chart is a different illuminant entirely. The honest claims are the self-fit numbers above and that the X100S — whose cast was small to begin with — barely moves. Verified end to end through the real develop: an unfitted body (Sony ILME-FX30) develops byte-for-byte identically to before, and reading the matrix back out of each profiled develop recovers the fitted one. ponytail: one matrix per body, no tone curve and no 3D LUT (a curve on top measured 2% better and needs a spline plus array uniforms). The match is applied to the 8-bit band the develop already produces — give develop 16-bit output if a profile ever has to grade rather than match.
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.