Commit Graph
19214 Commits
Author SHA1 Message Date
harrierpigeon 1b4153f0cd Precise Seam: slice modifiers in the belt slicing frame
slice_single_volume_regions() sliced Precise Seam modifiers with
trafo_centered(), but a belt printer slices its layers with
trafo_sliced(): the belt rotation, any pre-slice remap and the lift off
the plate on top. On a belt print the modifier regions landed in the
unrotated frame, away from the walls they were meant to place the seam
on. Slice them with trafo_sliced(), as the support volumes and the seam
enforcers already are. It equals trafo_centered() off a belt printer.
2026-10-04 19:22:42 -05:00
harrierpigeon e8a499df7b Belt: register the raw G-code toggle as a Preview shortcut
Main's assignable shortcuts replaced the canvas key switch that carried
the belt "show designed / show raw G-code" toggle on B. Register it as
ToggleBeltRawGcode, bound to B in the Preview (B is only taken on the
Plater, by the mesh boolean gizmo), so it can be rebound and is listed in
the shortcuts dialog. The legend checkbox shows whatever key is bound.
2026-10-04 19:21:22 -05:00
harrierpigeon bbb94724ba Merge upstream/main into belt-printer
Brings belt-printer up to main 4b4a261787. Resolutions:

- G-code header (#15897, #15915): main moved the header, config and
  thumbnail block later in _do_export; write_belt_header() moves with it,
  still after the thumbnails and outside the BTT_TFT gate.
- _extrude: first-layer acceleration keeps the per-path first-layer plane
  test with main's cached nozzle index (#16028); main's set_speed out-param
  form (#16108) everywhere else.
- GCodeWriter (#16108): the arc-to-polyline fallback for machine mappings
  that cannot express G2/G3 now runs in the out-param extrude_arc_to_xy,
  which is the overload GCode calls, and appends to the caller's string.
- GCodeProcessorResult: the belt fields join main's forwarding assign.
- Clipper2 (#15969): belt arrange helpers take Slic3r::Point; the tree
  support join types lose their ClipperLib qualifier.
- CLI arrange (#15837): belt printers still reserve no wipe tower.
- Wipe tower options (#15841): the two new sparse-layer toggles are hidden
  for belt printers like the rest of the tower options.
- Keyboard shortcuts (#15706): main's registry replaces the old key switch;
  the belt view toggle is re-registered in the next commit.
- Print::process: the belt purge-plan undo runs before main's SliceStarted
  event.
- scripts/filament_id_snapshot.json: deleted on main (a77209af8f).
- Includes and appended tests: union of both sides.
2026-10-04 19:20:33 -05:00
harrierpigeon ee88b3f0b0 GCode: hold the writer by value again
Belt printing turned GCode::m_writer into a unique_ptr so BeltGCode could
swap in a freshly built writer carrying the belt kinematics. Nothing
subclasses GCodeWriter: the machine mapping lives in its MachineKinematics,
which set_kinematics() installs on an existing writer. A GCode is built for
every export and the only state on the writer when init_belt_writer() runs
is the plate offset, which the swap had to copy across by hand.

Install the belt kinematics on the writer in place, drop the copied offset,
and drop the virtual markers on GCodeWriter that the old subclass needed.
Every m_writer-> in GCode.cpp goes back to m_writer., which is most of the
belt diff in that file and most of its conflicts with main.

The pressure-advance pattern keeps its shared_ptr writer: the unique_ptr
kinematics make GCodeWriter move-only and that class must stay copyable.
2026-10-04 19:16:59 -05:00
Damir Galeev fb529f8315 Fix startup freeze from synchronous scripts in the camera view (#16104) 2026-10-04 18:22:35 -03:00
TheLegendTubaGuy 93fca83122 Fix memory leak of gap fill paths in solid infill (#16137) 2026-10-04 22:13:17 +01:00
Ioannis Giannakas 7fd6e5fd72 Fix crash on macOS when OrcaSlicer is quit from the Dock, a logout or a restart (#16136)
Fix crash when quitting from the Dock, logout or restart on macOS
2026-10-04 21:54:47 +01:00
Ioannis Giannakas b29c3b36ec Fix a small memory leak when creating default enum list options (#16133)
Fix memory leak in ConfigOptionDef::create_default_option for enum lists
2026-10-04 20:08:42 +01:00
Damir GaleevandIan Bassi b6d11b2b3a Precise Seam: remove known limitations and rework perimeter intersection (#16072)
Co-authored-by: Ian Bassi <ian.bassi@outlook.com>
2026-10-04 14:47:56 -03:00
TheLegendTubaGuy 73a4ff9b16 Fix adding filaments with incomplete mixed metadata (#15728) 2026-10-04 13:03:42 -03:00
TheLegendTubaGuy 67a976e002 Fix mirrored transforms when loading 3MF files (#15731) 2026-10-04 12:53:34 -03:00
Kris Austin 78a4f2867c build: update OCCT to 8.0.1 (faster STEP and Design tab, Windows STEP crash fix) (#16089) 2026-10-04 12:36:54 -03:00
Kiss Lorand 5efb3bef45 Fix missing slicing progress on the first slice (#16000)
Restore slicing progress after notification reset

Ensure the cleared slicing-progress controller is recreated before its initial state transition, and calculate the Daily Tips size before positioning the popup.
2026-10-04 14:06:23 +03:00
Kris Austin 90ac58d3cd perf: skip the unused curled wall estimate to speed up slicing by up to 9% (#16113)
perf: skip estimating curled walls when nothing reads them

The curled extrusion estimate ran whenever a region had overhang speed on,
which is the default, but only the slowdown for curled perimeters reads the
curled lines it produces, and that slowdown is off by default. The step now
also requires a region with the slowdown on, and clears the curled lines
when it skips the estimate, so none are left from an earlier slice. 
Also fixes stale fan commands due to the stale curled lines on the reused layers.
2026-10-04 09:45:19 +01:00
HanifKoh 88346efceb Stop Format/STEP.hpp Defining a Global fs Alias (#16102)
Every file that included STEP.hpp, directly or not, got namespace fs = boost::filesystem at global scope, and 29 sources and three headers relied on it without saying so. Headers now spell out boost::filesystem, and each source that uses fs declares the alias itself.
2026-10-04 14:50:30 +08:00
HanifKoh 5a95ba4bd5 Add Missing Includes to Code Merged Since the Include Cleanup (#16106)
* Add Missing Includes to Code Merged Since the Include Cleanup

* Add Missing Includes to Code Merged Since the Previous Sweep
2026-10-04 14:50:15 +08:00
Kris Austin 36fb9905e5 fix: Linux Flatpak freeze and blank toolpaths after changing a setting in Preview (#16109) 2026-10-03 22:40:33 -03:00
harrierpigeon 69e7cc1544 Preview: judge a belt print's toolpaths by their back-transformed box
all_paths_inside() accepts the path bounding box only within 3*EPSILON of the
bed and otherwise tests every move; a belt print's moves are machine-frame
coordinates whose Z is belt travel, so that test can never pass, and the
designed view's min-corner anchor leaves the box a fraction of a millimetre
below zero. Every multi-object belt plate therefore reported a path beyond the
plate. The belt preview now judges the back-transformed box with a millimetre
of room.
2026-10-03 19:19:02 -05:00
harrierpigeon 6a0d07664f Belt purge tower: one prism per plate
ensure_belt_purge_tower only ever looked at the current plate and kept a single
prism, so the other plates had no tower and switching plates moved the one
prism around. Every plate is now planned on its own: a prism that lies on no
plate is stale, a plate whose prism matches its recorded inputs is left alone,
the rest are deleted and recreated, highest index first.
2026-10-03 18:59:01 -05:00
Kiss Lorand 674308f691 Fix internal bridge limiting area expansion units (#16056) 2026-10-03 20:31:38 -03:00
Kris Austin 5be5c90e59 perf: speed up G-code export by up to 8% via cheaper G-code text building (#16108) 2026-10-03 20:29:54 -03:00
TheLegendTubaGuy 32b1e69fdd Fix AppConfig text persistence and section-specific boolean reads (#16092) 2026-10-03 20:27:44 -03:00
harrierpigeon ca934716f5 Plate icons: keep them inside the gap to the next plate
The plate's icons, number and name scale with the plate's depth, but they sit in
the gap to the next plate, which scales with its width. On a long, narrow bed
(a 95 x 500 mm belt) they came out 40 mm wide and ran across the neighbouring
plate. The scale is now also bounded by the gap, which leaves ordinary beds
unchanged.
2026-10-03 15:39:49 -05:00
HanifKoh d1a3ef68c5 Fix CLI Crashes on Malformed Project, Assemble List and No-Input Runs (#15978)
* Fix CLI Crashes on Malformed Project, Assemble List and No-Input Runs

Four CLI paths indexed vectors without checking their size and crashed
with SIGSEGV on malformed input:

- A project inherits_group whose length is not the filament count plus
  the process and printer entries was split by position. It is now
  ignored with a warning, as if the project had none.
- An assemble list object with an empty filaments list passed validation
  and was then read at index 0. It is now rejected as a config error, as
  is a negative filament id.
- --slice N --arrange 1 on a project without plate metadata read the
  missing plate data. It now falls back to the plate's own filaments,
  like the other plate data reads.
- --assemble with no input model built an object with no volumes. It is
  now rejected as invalid parameters.

A tests/cli script covers each case through the binary, since all four
live inline in CLI::run().

* Move the Assemble List Parser into libslic3r

Behaviour-preserving move of the --load-assemble-list JSON parser and
its plate/object structs from the CLI into libslic3r/Format/AssembleList,
so the format can be unit tested. The parser returns its own
AssembleListResult and takes the plate limit as a parameter; CLI::run
maps the result to the same exit codes as before. Every validation rule
and log message is unchanged.

Adds Catch2 coverage of the valid layout and each validation rule.

* Keep the Process and Printer of an inherits_group of the Wrong Length

A project whose inherits_group did not have one entry per filament plus
the process and printer entries was loaded as if it had none. The CLI
then looked for system presets under the names of the user presets,
found none and refused to slice a project that slices on main.

The group is now read as before: the process first, the printer last
and the filaments in between, up to the filament count. A filament
without an entry counts as a system preset. A group with fewer than two
entries is still ignored. The warning stays.
2026-10-04 03:17:40 +08:00
harrierpigeon 82c462ab2a Prepare view: drop the dormant tilted-bed rendering
Plater::set_bed_shape read the belt keys from the plater's own config, which
never carries them, so the branch that tilted the bed model, drew the slicing
arrow and plane and switched the build volume to belt mode never ran. The
Prepare view shows the bed as the slicing pipeline treats it, flat; the
gravity arrow from build_plate_tilt stays, as does the preview's belt view,
which takes its angle from the G-code header.
2026-10-03 13:12:41 -05:00
harrierpigeon 2782374d8d Belt: write the belt header outside the optional file header block
The G-code viewer takes the belt tilt only from the belt header comments, but
they were written inside the header block that is left out when a BTT TFT
thumbnail is configured, so such a printer never got belt view. The comments
are not part of the header block; they go after it, and after the thumbnails
that firmware needs first.
2026-10-03 13:12:41 -05:00
harrierpigeon 0c3b7bc72e Belt brim: move the apron bands with the purge plan's layer grid
The purge plan snaps every object onto one layer grid after the brim is built;
the per-layer brim bands follow their layers but the apron bands below the
first layer carry their own print_z and were left behind, which is why a brim
was refused next to a purge tower object. The shift now moves them too and the
combination is accepted again.
2026-10-03 12:03:18 -05:00
harrierpigeon 6b304884d2 Belt arrange: group colours along the belt, keep the purge tower's strip free, stop the tower at the plate end
On a belt the parts print in belt order, so every colour change between parts
is a filament change. Arrange packs items in extruder order already, but it
grew the pile around its centre, so the colours ended up interleaved. A belt
print now packs from the leading end of the bed, each row filling across the
belt before the pile advances, and the objective charges an item for every
packed part of another colour it does not fully follow along the belt,
counting the tilted layers that reach cot(angle) * height past a part, so
each colour prints as one run. The direction follows the slicing rotation: a
rotation about X prints toward +Y, one about Y toward -X, and a negative angle
flips it. Packing from the edge also means the brim has to be kept on the
bed: a belt brim is printed brim_width wide for every brim type, so that much
is reserved along every edge (between parts the brims may overlap, as on any
printer).

The purge prism is regenerated from the arranged parts, flush with the far
edge of the bed, yet arrange moved it about like a part and packed parts into
the strip it comes back to. Arrange now skips the prism and reserves its strip
with a fixed virtual item, like a bed exclusion area, whenever the parts use
more than one filament.

The prism's length follows the parts plus a ramp per unit of height; with the
height at its cap that ran 100 mm past the end of a 500 mm belt and the project
could not print. The bar now stops at the plate end, and the purge planner's
existing warning reports what the shortened bar cannot absorb.
2026-10-03 12:03:18 -05:00
HanifKoh a80c323614 Let the CLI Resolve Presets on Installs That Ship Preset Caches Only (#16047)
Release builds install each vendor as its preset cache alone. The
read-only preset load the CLI uses to resolve an inheriting user preset
passed allow_cache = false to keep caches from being written, which
also stopped them from being read, so every vendor fell back to JSONs
that are not installed and the CLI failed.

The flag now only gates writing: a read-only load reads caches and
writes none. The filament library is also read from its cache whenever
that is all that is installed, so a vendor updated over the air still
resolves against it.
2026-10-04 00:40:38 +08:00
HanifKoh 52ff374870 Refresh a CLI Project's Filament Settings From Their System Presets (#16038)
* Refresh a CLI Project's Filament Settings From Their System Presets

The CLI loads a project's printer and process settings as the GUI does,
taking every key the project does not list as changed from the current
system preset, but it kept the stored filament values. A project saved
before a profile update then sliced with old filament values on the
command line and with the current ones in the GUI.

Every project filament that no loaded filament replaces is now resolved
by its system preset name and fed to the filament merge the up-to-date
path already uses, which keeps the keys listed in
different_settings_to_system and maps per-variant values onto the
preset's variants. This covers a plain run, --uptodate without
--uptodate-filaments, and the slots --load-filaments leaves empty. The
merge tells refreshed entries from loaded ones per entry instead of by
the global loaded-filament count, and the entries are kept in slot
order. A project filament saved under a name the presets have since
split per nozzle is resolved through the name conversion the GUI uses,
which PresetBundle now exposes.

* Check the Project Refresh Test's Result Directly

Shellcheck SC2181: test the checker's exit status in the if instead of
reading $? afterwards.
2026-10-04 00:36:10 +08:00
Kris AustinandRodrigo Faselli 6e0f04815b perf: speed up G-code export by up to 7% via post-processing fixes (#16031)
Co-authored-by: Rodrigo Faselli <162915171+RF47@users.noreply.github.com>
2026-10-03 13:29:55 -03:00
Kris AustinandRodrigo Faselli c67b54b39d perf: speed up G-code export by 4-17% via parallel overhang precompute (#16050)
Co-authored-by: Rodrigo Faselli <162915171+RF47@users.noreply.github.com>
2026-10-03 11:50:36 -03:00
a6dbf2502d Device tab blank for webui printers after switching language (#14547)
* Save device url in all cases and load printer url after hot-reload finishes

* Recreate web view from scratch as only URL fix seems not robust enough

* Add the same robust browser recreation for WebViewDialog

It should eliminate possible issue with blank Home and other pages
in the same way as Printer page

* Remove redundant fallback leftover

* Fix webview reset state and replay Project info on page reload

The first-show webview reset now runs only on Windows, reloads the last
printer URL and resets the Project page's ready state. The Project tab
replays its 3MF info whenever the page reloads, so it no longer goes
blank after a theme switch or a slow first load. The Device tab no longer
loads an extra time on first open, and the Home tab no longer navigates
twice. NeedsRecreateOnShow() logs is_recreating_gui so one language
switch shows whether the reset ever fires.

* Build plugin pages on first show

A language switch rebuilt every plugin page's browser while the main
window was being recreated, which left plugin tabs blank on Windows.
Plugin pages are now lazy pages, never prebuilt, and are removed left
to right so removing pages never builds one only to destroy it.

A plugin page's script now starts when its tab is first opened;
messages posted before that are dropped.

---------

Co-authored-by: SoftFever <softfeverever@gmail.com>
Co-authored-by: Noisyfox <timemanager.rick@gmail.com>
Co-authored-by: SoftFever <103989404+SoftFever@users.noreply.github.com>
2026-10-03 20:06:50 +08:00
HanifKoh 8a6377f087 Add Missing Includes Across src/libslic3r (#16068)
* Add Missing Includes Across src/libslic3r

Every libslic3r source and header now directly includes the headers declaring what it uses, rather than relying on the precompiled header or transitive includes. Generated with clang-tidy misc-include-cleaner, with libslic3r headers spelled libslic3r/... so they resolve outside the library's private include paths. MultiMaterialSegmentation.hpp, Support/SupportParameters.hpp and Format/STEP.hpp are made self-contained by hand.

* Make the libslic3r Headers Compile on Their Own

Each now includes, or forward-declares, what it uses instead of relying on what its includers happened to include first. Left out: I18N.hpp, which errors on purpose when included from GUI code, and VoxelizeCSGMesh.hpp and SLA/bicubic.h, which nothing includes and which no longer compile at all.

* Add the Includes Missing From the Hand-Fixed libslic3r Headers

clang-tidy would not edit these headers while they failed to compile on their own, so the first pass skipped them. With the headers now self-contained, a second pass adds the rest.

* Keep Windows Setup Ahead of the Added libslic3r Includes

Print.cpp and Thread.cpp open with a _WIN32 block that has to come first; without the precompiled header, Print.cpp otherwise reaches windows.h through OCCT with NONLS defined and boost/regex fails. OpenVDBUtils.cpp and SLA/SupportTreeBuilder.cpp had includes inside #ifndef NOMINMAX, which libslic3r defines on Windows, so those were skipped there. .clang-tidy also ignores the MSVC STL and UCRT internals, Boost.Multiprecision's fwd.hpp and CPython's Windows include directory.

* Re-Add libslic3r Includes After the Clipper2 2.0.1 Migration

Rebasing onto main took main's version of the files the Clipper2 migration rewrote, so their added includes are restored here, along with includes for main's new code. Clipper2's individual headers are now ignored by clang-tidy: they only build the Z variant through clipper2_z.hpp, which defines USINGZ first, so including clipper.core.h and the like directly broke ClipperZUtils.cpp.
2026-10-03 15:31:11 +08:00
HanifKoh 84657ff11e Add Missing Includes Across the Remaining Sources and Tests (#16071)
* Ignore Clipper, libpng, mcut and Boost.Polygon Internals in clang-tidy

Each only works through a wrapper or umbrella header: libslic3r/clipper.hpp or clipper_z.hpp configure Clipper before including it, png.h pulls in libpng's config headers, and Boost.Polygon's headers only compile through polygon.hpp or voronoi.hpp.

* Ignore minilzo's Config Headers in clang-tidy

lzoconf.h and lzodefs.h are internal to minilzo.h, which is what the code includes.

* Add Missing Includes Across the Remaining Sources and Tests

Covers src/slic3r/Utils, src/slic3r/plugin, src/slic3r/Config, src/libvgcode, src/dev-utils, src/OrcaSlicer.cpp and tests/, the directories left after src/slic3r/GUI and src/libslic3r. Generated with clang-tidy misc-include-cleaner. libvgcode's own headers are included by relative path as in the rest of that library, and Catch2 and pybind11 with angle brackets as elsewhere in the repo.

* Make the GUI and Test Headers Compile on Their Own

Each now includes, or forward-declares, what it uses instead of relying on what its includers happened to include first. Headers that only compile on one platform, or that nothing built includes, are left alone.

* Keep Windows and nanosvg Setup Ahead of the Added Includes

OrcaSlicer.cpp and several tests set _WIN32_WINNT, WIN32_LEAN_AND_MEAN or NOMINMAX before including Windows.h, and the profile validator defines NANOSVG_IMPLEMENTATION before any libslic3r header. The added includes had landed above those blocks, which broke the Windows build.

* Add the GUI Includes the First Pass Missed

Covers headers that only became editable once they compiled on their own, and wx symbols whose suggested header changed as the clang-tidy ignore list grew after the src/slic3r/GUI pass.

* Keep the Added Test Includes Below the NOMINMAX Guard

test_marchingsquares.cpp and test_texture_displacement.cpp had includes inside #ifndef NOMINMAX, which the tests inherit as defined on Windows from libslic3r, so those were skipped there. .clang-tidy also ignores the MSVC STL and UCRT internals, Boost.Multiprecision's fwd.hpp and CPython's Windows include directory, as in #16068.
2026-10-03 13:45:21 +08:00
Kiss Lorandandyw4z 00bb4202fe Fix gizmo checkbox contrast; align Texture Displacement styling and panel refresh behavior (#16076)
* Fix gizmo checkbox styling and Texture Displacement resize

Use shared BBL checkboxes in Texture Displacement and restore white toolbar checkmarks so other gizmos keep proper checkbox contrast. Also fix Texture Displacement resizing only after mouse movement by requesting additional frames while its layout is still changing.

* Fix gizmo checkbox styling and Texture Displacement resize

Use shared BBL checkboxes in Texture Displacement and restore white toolbar checkmarks so other gizmos keep proper checkbox contrast. Also fix Texture Displacement resizing only after mouse movement by requesting additional frames while its layout is still changing.

* Update GLGizmoTextureDisplacement.cpp

---------

Co-authored-by: yw4z <ywsyildiz@gmail.com>
2026-10-03 03:12:31 +03:00
Kiss Lorand 1241dd5521 Fix per-plate bed type handling (#15916) 2026-10-02 21:02:36 -03:00
Kris Austin eb30ea1eb8 perf: speed up G-code export by 3-9% via cached config lookups (#16028) 2026-10-02 19:34:47 -03:00
Ian BassiandRodrigo Faselli 222c6a2df5 Improve performance by migrating to Clipper2 2.0.1 (#15969)
Co-authored-by: Rodrigo Faselli <162915171+RF47@users.noreply.github.com>
2026-10-02 17:33:41 -03:00
harrierpigeon d35af1806a Belt cooling: keep the fan off in the band inside the layer cooling pass
The band was a second pass over the finished layer that fought the fan commands
the layer pass had already written (overhang, bridge and resume requests). The
generator now marks where each segment enters and leaves the band and the layer
pass treats the band as the strongest fan request, so there is one place that
decides the fan.
2026-10-02 12:46:44 -05:00
harrierpigeon 5ac0dd19d0 Belt brim: no near-duplicate lines in a narrow lattice band
A band barely wider than one line got a second line almost on top of the first,
and lattice rows could repeat within half a pitch.
2026-10-02 12:46:44 -05:00
harrierpigeon 550229b0fa Belt validation: refuse a brim next to a purge tower object
The purge plan moves objects onto a common layer grid after the brim bands are
built, so the two cannot share a print. The prime tower setting alone still does
not block a brim. The missing-prism warning now counts the filaments the objects
use, as the GUI does.
2026-10-02 12:46:44 -05:00
harrierpigeon 997fac8752 GCodeProcessor: key the belt height-check skip on belt_printer
The check was skipped for any machine-frame transform; what makes the printable
height meaningless is the belt axis, so ask for that directly.
2026-10-02 12:46:44 -05:00
harrierpigeon 007071bd56 GCode: skip the second crossing-avoidance pass on a brim apron layer too
travel_to runs avoid-crossing a second time after a wipe; that call needs the
current Layer as much as the first one does.
2026-10-02 12:46:44 -05:00
harrierpigeon 7a23d9ea2c Belt slicing: only model parts set the layer range again
The filter was lost with the debug logging it shared an #if with, so modifiers
and support blockers stretched the sliced range of a belt object.
2026-10-02 12:46:43 -05:00
Ian BassiandKris Austin 70bc02467b Faster Preview View (#15884)
Co-authored-by: Kris Austin <kris.austin@gmail.com>
2026-10-02 14:45:58 -03:00
Ian Bassi a1ad2b4425 Add section view feature for 3D canvas (#15879) 2026-10-02 11:50:43 -03:00
HanifKohandSoftFever 205de9ce63 Keep User Preset Values on Extruder Variants They Don't List (#16046)
* Keep User Preset Values on Extruder Variants They Don't List

A user preset stores the variant list its parent had when it was saved.
When the parent later gains variants, update_diff_values_to_child_config
matched variants by name only and left the new ones at the parent's
value, so the user's settings were silently replaced there, and a
re-save wrote the system values into the user's file.

An unmatched parent variant now takes the child's first variant of the
same extruder, the rule slicing already uses in get_config_index_base.
A child without a variant list covers the parent's first extruder. The
name match also no longer indexes the child's extruder ids when it has
none.

* Share One Variant Column Rule Between Slicing, User Presets and Projects

Three places chose which variant column a value comes from, each with
its own copy of "the same variant and owner, else the owner's first
column": get_config_index_base when slicing, the user preset merge in
update_diff_values_to_child_config, and normalize_filament_values_to_variants
for projects and the CLI.

find_variant_column now holds that rule and map_variant_columns applies
it to a variant list, so a change to how missing variants are filled
reaches all three. Each caller keeps its own copy step. There is no
behaviour change: G-code is identical before and after. The one
relaxation is that get_config_index_base no longer reads past a short
id list when its two lists differ in length, which its assert already
rules out.

* Rename variant column helpers to variant index

---------

Co-authored-by: SoftFever <softfeverever@gmail.com>
2026-10-02 20:13:06 +08:00
HanifKoh 390b7d8e6d Make Painted Multi-Material Slicing Deterministic (#15899)
* Make Painted Multi-Material Slicing Deterministic

Painted (multi-material) models sliced to slightly different G-code on
every run: ±1 µm wall coordinates and reordered islands. Hashing each stage
of the segmentation across runs showed the projected painted lines and the
per-layer Voronoi segmentation were stable; the raw top/bottom projections
from slice_mesh_slabs() were not. Three causes, all thread-order dependent:

- slice_slabs_make_lines() appends each slab's intersection lines from a
  parallel facet loop and never restored a canonical order, so the loop
  start vertices and polygon order from make_slab_loops() depended on
  scheduling. Sort every slab's lines with the same key slice_make_lines()
  already uses.
- segmentation_top_and_bottom_layers() wrote a layer's shell projections
  into neighbouring layers' vectors from the parallel loop, relying on a
  parity double-buffer that assumes TBB ranges are exactly one group wide
  and aligned, which blocked_range does not guarantee; two threads could
  append to the same vector. Each source layer now records its projections
  in its own slot and they are gathered per target layer in source order.
- The painted-line sort in post_process_painted_lines() was not a total
  order: projections of one span from facets of different colours tied on
  every key and the first one won the span. Colour and end points now break
  the tie.

Three multi-threaded runs of each painted fixture now give one G-code;
unpainted output is unchanged.

* Test That Slab Slicing Does Not Depend on the Thread Schedule

Projects a dense, tilted sphere with slice_mesh_slabs() on one thread and
then three times multi-threaded, and requires the polygons to match exactly,
vertex order included. Fails without the canonical line sort, passes with it.
2026-10-02 16:51:06 +08:00
harrierpigeon 441ae8e877 Belt: decide the fan band per extrusion segment
A tilted layer runs from the belt to the top of the part, so a wall loop
that starts above the belt still passes along it. Tagging only the path's
first point left such loops out of the band entirely; the band is now
evaluated at each segment, with the tag capped where the fan stops
depending on it.
2026-10-02 02:36:13 -05:00