A raw whose camera look fails the acceptance gates fell back to the neutral
rendering: dark (9-22 L* below the camera JPEG), about a third of its
colourfulness, hues from the generic camera = sRGB matrix. Before falling
back, fit a partial look: the quantile tone curve (registration-free), the
chroma curve and, on a scene with enough colour, the photo's own matrix at
half weight (no hue/saturation table). It is used only when it cuts the
held-out error to below 0.7 of the neutral fallback's (linear and encoded)
and the JPEG's luminance ranks the pixels like the scene's (Spearman >= 0.5).
The full look's gates and search are unchanged. Render cache version 24.
A clipped raw pixel no longer records the scene's colour (one channel held at
the clip level turns a white sky magenta or blue through the matrix while the
camera JPEG keeps it white). As training pairs such pixels pulled the fitted
colour matrix toward grey and made the chroma curve remove colour at their
display luminance: on the CC0 Z 6II forest sample every chroma sample above
display luminance 0.36 was clipped, and the curve cut colourfulness there to
13-19%.
The proxies now carry a per-pixel clip mask (any covered sensor sample at or
above 0.99, aligned with the CR3 framing). The search on all pixels still
decides whether a photo gets a look and which attempt gives it; only that
attempt is refitted without the clipped pixels, and the look on all pixels is
kept when the refit misses the gates, so no photo loses its look or switches
attempt. Photos without a look get one when the search without the clipped
pixels finds it. Camera-profile pairs leave clipped pixels out too.
Render cache version 20 -> 22.
preset, background, resize, subfolder, conflict, tiffCompression and
dngCompression were in the export tool's schema (and so passed the new
argument check) but were dropped before reaching app.export.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
std::process::exit skipped eframe's on_exit (ui.json, close_library) and the
may_close check, so changes still in memory could be lost on Cmd+Q.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
radialmonster
Brandon Thomas
