- engine: QuickJob — what to show the moment a photo opens: the loupe's last render for the
current settings (kept by Session::loupe_job under a size-independent "view" key in the
preview cache, memory + disk with a library; the disk JPEG is written off the render
thread via PreviewCache::put_deferred), else the embedded camera JPEG of a raw that still
has its import look (import::has_import_look), else a thumbnail-level render.
- Grid / filmstrip: an unedited raw without a thumbnail shows its cached thumbnail, else its
embedded preview (Slot::ThumbQuick) at once; the real rendered thumbnail follows at
background priority (same cache keys, so it still ends up matching the develop render;
edited photos render directly).
- Loupe (detail, compare, filmstrip selection): Slot::Preview holds the stand-in until
Slot::Main has the photo; the full render then replaces it in place (no blank frame).
- files::embedded_preview_srgb + PreviewLoader hook (desktop/CLI/MCP and web).
- ui.inspect → loupe {photo, source: render|cached|embedded|small|thumb|none, pending}.
Real app (24 MP raws, loaded machine): first image 15–90 ms (thumbnail, then embedded
preview), full render 0.2–0.5 s (was 1.0–2.4 s with nothing shown before it).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The catalog Store on the web is an in-memory mirror (apps/lightcraft-web/src/files.rs) loaded
from browser storage at start-up and flushed in the background in modification order (so a
snapshot always lands before the log reset that follows it). Storage is OPFS when writable from
the main thread (createWritable), else IndexedDB (?store=idb forces it); ?reset clears it.
Imported originals are stored as originals/<content hash> and referenced as
web/<hash>/<name>; the main thread keeps a bounded memory cache and loads misses (and the
active photo) asynchronously. view.json and ui.json are saved every second when changed.
Engine: Session::open_library_in(LibraryStores) opens a library from any Store (presets, view
and prefs go through it too); Session::save_view; Copy imports into a non-disk library add.
JS automation API: lightcraft.command(id, paramsJson) (+ web.stats).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
apps/lightcraft-web runs the egui UI in the browser (eframe web, glow/WebGL2):
procedural demo library on load; in-memory imports via file picker
(Cmd+Shift+I) and drag-and-drop (MemStore + bytes-based engine hooks);
export goes through app.export and downloads in the browser; `?bench` logs
first-frame and slider latency. `cargo xtask web [--serve [port]] [--dev]`
builds with the matching wasm-bindgen CLI into <target>/web/; the web app is
part of the CI wasm check. Wasm fixes: lazy profiling Instant in pipeline,
web-time clocks in ui-egui (render timings were 0 on wasm). Docs: docs/web.md.
No persistence on web yet.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Brandon Thomas