Resolutions: CLI usage, flag lists and flag parsing carry both --tiff-compression (t15) and
--jpeg-format (t16); file.saveACopy, batch, imageProcessor and layersToFiles param specs carry
both tiffCompression and jpegFormat; file_cmds keeps tiff_compression_param and
jpeg_format_param; atn_cmds keeps flag_set/applies_at_canvas_bounds (t15) and UNHOLDABLE (t16),
edit.transform uses the pixel_target guard (t15) with layer_ref(p)? (t16); ui-egui open paths
build ImportOptions (t16) and apply raw_defaults (t15); docs headers/rows unioned; atn tests keep
both sides; tr.tsv "Keep Using CPU" kept once.
crates/compose/src/effects.rs: kept main's par_units row loop in bevel_maps and ported the PR's change into it: k maps shade and the flat-face level through the gloss contour (lut_at), and the closure returns (hi, sh) without the apply_contour pair.
- Replace whole-region Vec<f32> read_region/write_region in CutParts::new
with tile-parallel cut_piece + try_fill_surface/try_clear_surface,
sharing interior Arc<Tile> allocations in O(1) and activating the
solid_tile hole-fill fast path on Background and mask targets.
- Cache piece_bounds on CutParts so CutParts::place avoids scanning tile
content bounds on every drag frame.
- Parallelize composite_over across top tiles with Rayon and share fully
opaque top tiles by Arc<Tile> clone in O(1), preserving COW tile
identity for GPU canvas uploads.
- Parallelize Surface::translated across target tiles with Rayon and
prune cleared tiles in-place inside edit_tiles.
- Skip zero-offset floating preview generation on pointer-down in
move_ui::floating_doc.
- Exclude SnapKind::Selection when moving selected pixels with the Move
tool so small initial drags do not snap back to (0, 0).
- Keep navigator_plain active during Move/Brush/Patch drags on a GPU
canvas so navigator_gpu is not evicted into a synchronous full-document
CPU thumbnail composite on the first drag frame.
- Parallelize row normalization in compose::render_reduced_in_bands and
add a direct read_rgba_into fast path for unmasked Normal layers over
an empty backdrop.
Look in from each edge through strips that double in thickness, so a subtracted
or intersected subpath's empty margin costs a few renders instead of one per row.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A soft shape's transform frame, snap rectangle and Properties X/Y/W/H came from
the path plus the full stroke width on every side, so a centred or inside stroke
grew the frame when Density or Feather was set. The frame is now the pixels the
same shape renders at full Density without Feather (edge strips only, clipped to
the canvas), identical to the hard shape's for every stroke alignment.
feather_matches_photoshops_ramp now enforces the 1-level claim the scorecard
makes (measured max deviation 1 at 8, 16 and 32 bit).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
docs/file-format-parity.md: main added three 2026-10-15 revision rows
(DDS save, PNG sTER, PSD guides) where the PR added its own; keep all four.
Co-authored-by: varanus-salvator <262257003+varanus-salvator@users.noreply.github.com>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Reuse tile scratch and tone tables across rendering work. Skip fully masked
adjustments and identity float curves. Previous-path tests preserve output
across sample depths, masks and clipping.
A Gradient Overlay (and gradient strokes, linked patterns, linked bevel
textures) is laid out over the layer's bounds. Painting grows those
bounds, but the stroke commands reported only the stroke as damage, and
the canvas's committed-stroke path repainted only what the live stroke
had not shown. The canvas therefore kept the old gradient around earlier
strokes: one gradient per stroke instead of one over the whole layer.
Session dispatch now grows a command's reported damage by
photocraft_compose::relayout_damage(before, after): the whole composite
of any visible layer whose effects span its frame, when that frame moved.
The canvas adds the same area to a committed live stroke. Strokes inside
the existing bounds and frame-independent effects keep tight damage.
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
`bake` rendered each layer through `render_layer`, which has no document context (default Global
Light, no patterns, the render rect as canvas). It now uses the new doc-aware `render_layer_in`.
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
A pass-through group that is the base of a clipping group renders isolated while it holds a
visible adjustment (`clip_base_adjusts`), so showing, hiding, adding or removing a clipped
adjustment inside it can switch the group's other children (a Multiply layer beside the base)
between isolated and pass-through rendering. `change_bounds_in` now takes the list holding the
parent group and reports that group's change bounds in this case; `layers_damage`, `step_damage`
and `one_sided_bounds` pass it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Parallel bands each collected their finished tiles until the band's last
one was done, so with work stealing many bands could hold most of their
tiles at once, close to a second copy of the output. Each tile is now put
into its band behind a lock as soon as it is rendered; only the tiles in
flight are held, as before the bands ran in parallel.
The compositor draws a clipped adjustment that has no unclipped layer
beneath it as an ordinary adjustment, but change_bounds counted it as
contained in a pass-through group. Hiding the layer clipped to such a
group (which ends its isolation) or the group itself then recomposited
only the group's pixels and left the rest of the canvas stale.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The gloss contour was applied to the highlight and shadow amounts after
the lighting split, so a contour that starts high (Rolling Slope -
Descending) turned every unlit pixel into a full highlight: a bevelled
glyph's flat face painted (255, 40, 42) over its (151, 22, 23) fill. It
now maps the shading before the split, with the flat face's mapped
shading as the neutral, on the CPU and the GPU. Linear is unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Port the clipped-adjustment coverage path from #4711 and verify depth, alpha, masks, and document-coordinate GPU parity.
Co-authored-by: Vikram Bhaskaran <vikram.bhaskaran@outlook.com>
A pixel layer with nothing clipped to it is read from its tiles a row at a
time and blended straight onto the backdrop, instead of being copied into a
tile-sized buffer first (a megabyte per layer per 256² render tile). Normal
RGB rows go through a branch-free kernel over blocks of 8 pixels that the
compiler vectorizes; few-band renders also run their bands in parallel.
Bit for bit the same: the row kernel is tested against the scalar loop (NaN,
infinities, subnormals, signed zeros), the row path against the tile copy at
8/16/32-bit with every kind of mode, fill and mask, and the whole GPU parity
suite's CPU references (1620 renders) are unchanged.
P60 on the CPU compositor: 627 -> 530 ms (the render without effects
300 -> 199 ms).
`photocraft_compose::change_bounds` returned "anywhere" for every
adjustment layer before looking at `clipped`, although a clipped
adjustment only changes its clip base's pixels. Hiding or showing one
(or undoing that) therefore recomposited the whole canvas, which on a
heavy document fails the GPU memory fit check and falls back to a full
CPU redraw taking seconds to minutes.
`change_bounds` sees one layer and cannot find the base, so a new
`change_bounds_in(layers, k, canvas)` looks at the sibling list: a
clipped adjustment's change bounds are its base's change bounds. It
stays `None` (anywhere) when no unclipped base lies beneath it (the
compositor then draws it as an ordinary adjustment), when the base is
an adjustment (layers clipped to it composite atop the adjusted
backdrop), and, through `change_bounds`, when the base is a
pass-through group holding an adjustment (visible clipped layers make
that group isolated, so they decide whether its adjustment reaches the
layers beneath) or draws outside its bounds. The engine's
`layers_damage`, `step_damage` and `one_sided_bounds` use it.
Tests: a compose unit test that the clipped adjustment's bounds equal
the base's, that every pixel the toggle changes lies inside them, and
the cases that stay unbounded; an engine test that hide, undo, redo,
show and `layer.setProps` visible report the base's rect (top level and
inside a group), and that recompositing only that rect over the
previous canvas equals a full recomposite.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
A shape below 100 % Density renders over the whole canvas, and a Feather
grows its pixels, so Free Transform, the Move tool's transform controls,
snapping and Properties > Transform framed the canvas or the blur. As in
Photoshop the frame now follows the path and stroke whatever the mask
Density and Feather: photocraft_compose::hard_shape_bounds (shape_bounds
without the soft reach) feeds whole_layer_bounds and the Properties
Transform fields. Rendering keeps the soft bounds; other layers and hard
shapes are unchanged.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Keep effect-identity memo lookup, pure hashing and insertion atomic across concurrent render callers. Preserve existing identities and add a contention regression with eight synchronized callers.
aiongg