Measured against the darkest frame on real ARW brackets, each frame is linear to 1 % up to the clip far from
clipped pixels, but within 2 px of them the +2 EV frame's green reads 3–5 % low: demosaicing interpolates it from
clipped photosites. That frame carries the most weight (k = 4) and those pixels were unclipped themselves, so they
kept it, and bright windows took a magenta tinge.
A frame's weight now goes by its brightest channel within 1 px (3 × 3; wider margins changed nothing more). On two
real interior brackets (ILCE-7M3, 0 / −2 / +2 EV), bright pixels whose green against red and blue is over 10 % below
the darkest frame's, in camera RGB: dining room 0.32 % → 0.08 %, kitchen 2.86 % → 0.28 %. Rendered at −3 EV with
main's colour tags (#1123), window pixels with G < 0.85·min(R, B) go 50 → 3 and 16 → 10 (the darkest frame alone:
2 and 205); most of the visible magenta those brackets showed before came from the missing colour tags. Test: a
bracket whose +2 EV frame has 5 % less green next to its clipped pixels merges without the deficit (fails before:
−1.96 %).
Docs: docs/merge.md, the LR-MERGE-HDR row, docs/whats-new.md (also for the frame-order fix).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015gRtdWF1E9358FfzhzYqCS
A drag tick requested the loupe's draft and the frame ended; the draft,
done in 1.5-3 ms on the GPU, was picked up at the start of the next frame,
a frame after the slider moved. Now, in a drag, the loupe waits up to 40 %
of a frame for its draft when the last loupe render took well under that
(not with a render offload, nor zoomed in, where what changes on screen is
the window's draft). A CPU render, which would only make the frame late, is
not waited for.
JobPool::wait waits for the next finished job, which try_recv then hands
out; Renderer::poll's collection of finished jobs is split out so the wait
can turn the draft into the texture.
Co-Authored-By: Claude <noreply@anthropic.com>
The semibold family had a semibold Inter but, for other scripts, the same
regular craft-fonts faces as regular text, so a heading or the chosen tab
in Arabic was drawn at regular weight beside bold Latin.
A fallback face with a weight axis (today Noto Sans Arabic, 100 to 900)
is now registered a second time for the semibold family at weight 600,
through epaint's FontTweak::coords. The bytes are borrowed from the
embedded font, not copied. Faces with one fixed weight, regular and
monospace text, the order of fallbacks and Latin are unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude