3dtours
d1e9425b9c
sensorWhite hung its nine counts of window off the plane's largest sample. A hot pixel sits hundreds of counts above the level the sensor stops at, so on a frame that carries one the window held the stray alone, found no pile in it, and handed the develop the factor two instead of the frame's own level. Measured on a Panasonic DMC-LX10 RW2: one sample at 15993 and one at 14665 over a pile of 9,594,544 at 13855. The frame's level is 1.75x the fall-back, so the develop opened 0.81 of a stop bright, clipped the sky the sensor had held to flat, and the fit to the camera's preview could only pull the exposure back after the highlight detail was gone. Against the camera's own JPEG of the shot, mean |dL| 23.48 and dRGB +8.57,+0.90,+4.90 became 19.14 and +5.32,+1.89,+2.04, and the level itself 7908 (gain 8.2872) became 13874 (gain 4.7236) against the 13855 the plane piled at — 0.14%, 0.002 of a stop. The level is now the highest count the plane piled at, off a whole-plane histogram: `floor` counts is a pile, and the same cliff rule as before still has to hold over the count below it, so a smooth bright sky is left alone and a frame that has not clipped still falls back on the factor two. The same stray was in four of the ten bodies to hand. A Nikon _GDN0447.NEF read the fall-back 8190 where its plane piles at 13806 (gain 8.0018 -> 4.6022, 0.79 of a stop), a Fujifilm RAF 29696 where the documented level is 30993, and a Sony ARW 31742 against the 2.002x the body's ratio was measured at. Six were untouched, and a Canon CR2 develops byte-identical through the change — the window moves only on a frame whose largest sample is not its highest pile. scripts/white-level-check.mjs keeps the LX10 shape: a plane piled at 30995 with a stray above it has to answer 30995.
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.