Commit Graph
655 Commits
Author SHA1 Message Date
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
Claude 815716a4b5 Merge branch 'main' into claude/inspiring-knuth-7cp6pk-upstream
Conflicts were only in include lists (CadDocument.cpp, SketchEngine.cpp);
both sides' includes are kept.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QK4VgguuCAk2hZLWgcjJb9
2026-10-03 08:12:47 +00:00
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
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
SoftFever 9351bbaa83 Merge branch 'main' into claude/inspiring-knuth-7cp6pk-upstream 2026-10-03 02:30:59 +08:00
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 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
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
harrierpigeon bfbf5ad1c2 Arrange: keep a pile aligned to an off-centre point on the bed
With best_object_pos away from the bed centre the placer packs the pile
inside the bin and then translates it so its centre lands on that point,
without checking that it still fits there. A belt printer aims at the
leading end of the belt (BabyBelt Pro: 0.5, 0.05), so any pile longer than
the 50 mm around that point was pushed past the edge: four 90 mm parts on
the 95 x 500 mm belt ended with one across the edge and one outside while
290 mm of belt stayed free.

The final alignment now stops the pile at the edge of the bin; the items'
inflated boxes leave the object spacing as the margin. A pile that does not
fit along an axis is centred on it, as before.
2026-10-02 12:09:59 -05:00
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 31494a9836 tests: give the belt fan band test a band the walls reach 2026-10-02 02:42:14 -05:00
harrierpigeon 461063856d tests: fix two belt test expectations
The clearance test needs the relative-E reset in its layer change G-code to
get past validate()'s other checks, and now asserts the height message. The
fan band test counts cycles rather than commands: the band is decided per
path start, so a cube cycles the fan far less often than a benchy.
2026-10-02 02:33:14 -05:00
harrierpigeon 1b392955de tests: organic tree supports reaching the belt slice without a negative flow
Covers the case from Hanif Koh's review of #14394 (belt raft layers below
the object with no lower bound), which the negative-Z bottom layer fix in
layer_initialize() addresses.
2026-10-02 01:13:29 -05:00
harrierpigeon 3beb448ae6 Belt brim: lattice lines closer to the belt than the band fraction move uphill
With a first layer of about 0.28 mm or more at 45 degrees (or a shallower
belt) the brim band is wider than one bead and its lines go on the nominal
lattice. A lattice line could land where the belt is almost at the band's
print_z; its flow was clamped to half a layer while the nozzle sat nearly on
the belt. Such a line now moves uphill to the 0.75 fraction the single-line
case uses, and a line that lands on the previous one is skipped.

Ported from the Unlayered fork (patch 0007 of its belt port series, found
there by fuzzing first layer heights). The fork's companion fix, restricting
the brim filament to those the writer was handed (0008), is not needed here:
ToolOrdering registers the brim filament on every band's layer, so the writer
always has it. A test pins that with every object a flush target.
2026-10-02 01:13:29 -05:00
harrierpigeon 360a68e078 Belt: warn when the purge tower is enabled but the project has no tower object
The purge tower is a model object the GUI creates and sizes, and libslic3r
only purges into one that exists. A multi-filament belt project sliced from
the CLI without it changed filament with nowhere to purge, silently.

Raised in Hanif Koh's review of #14394.
2026-10-02 01:11:59 -05:00
harrierpigeon 556569c0e3 Belt: drive the first-layer fan band from the generator, not from parsed moves
The cooling buffer's band pass rebuilt positions from the layer's G-code
and tested them against the first-layer plane. The G-code is in machine
coordinates and the plane is in slicing coordinates, so on the shipped
profiles the nearest move was over 100 mm from a 0.2 mm band and the pass
never changed the fan. GCode::_extrude() already knows each path's height
above the belt, so it now tags the band changes and the buffer applies and
strips the tags.

The pass also took the S of every M106 as the part fan, whatever its P
index, and stored that 0..255 value where a percentage was expected (an
auxiliary fan line came back as M106 S651); it now uses FanMover's parser,
which ignores other fans, and converts to percent. It no longer overwrites
the layer's intended speed, only the fan's actual state.

Raised in Hanif Koh's review of #14394.
2026-10-02 01:10:57 -05:00
harrierpigeon 3752144995 Belt: do not refuse a brim because the prime tower setting is on
enable_prime_tower stays on for any multi-filament project, but a belt
printer never prints the classic tower and the belt purge prism is an
ordinary object that never takes a brim, so every brim on a multi-filament
belt print was refused for nothing.

Raised in Hanif Koh's review of #14394.
2026-10-02 01:07:42 -05:00
harrierpigeon 2aa4122aae Belt: check object height against the gantry clearance again
validate() skipped the build-volume height check whenever the machine-frame
transform was active, which is every shipped belt profile, so a 400 mm
object passed on a 300 mm printable_height. The transform only changes how
the height is written to G-code; the clearance check from f682ab5cd3
applies regardless.

Raised in Hanif Koh's review of #14394.
2026-10-02 01:07:42 -05:00
HanifKoh c023632a7d Lock Config and Preset Files Across Instances and Write Them Atomically (#15861)
* Lock Config and Preset Files Across Instances and Write Them Atomically

Every running instance shares one OrcaSlicer.conf and one user preset
tree, and nothing kept their writers apart. Two instances saving at the
same moment, or the cloud preset sync thread writing while the GUI thread
saved, could interleave, and a reader in another instance could open a
preset JSON or .info file between truncate and close and get a partial
file, dropping that preset for the session with a parse error.

Add InstanceLock, a scoped guard that serialises the threads of one
process through a recursive mutex and other processes through an advisory
OS file lock: flock on POSIX, held on the guard's own descriptor so no
other close in the process can drop it, and LockFileEx on Windows. The
outermost guard opens the lock file and closes it on release, so nothing
stays open between saves and a data dir can be removed once nothing is
saving into it; the file itself is kept, since deleting it would let a
third instance lock a fresh file while the second still holds the old
one. It is best effort: when the lock file cannot be opened or locked, or
another instance still holds it after a second, the guard logs once and
lets the write proceed, then leaves the file alone for ten seconds, so a
hung instance never blocks every other one and a holder stuck in a
debugger does not cost a stall per save. The guard sits at the leaf
readers and writers: set_sync_info_and_save() calls save_info() under the
preset collection mutex, so a batch lock around save_user_presets() would
invert the order against the sync thread. The user preset scan reads its
files on worker threads without the guard, since the mutex would
serialise them, and takes it per file in the serial commit step, so a
save never waits for the whole scan. Each read keeps the bytes of the
preset and its .info as they were before parsing; commit compares them
with the disk under the guard and reads a file that changed again, so it
never deletes or writes back over another instance's newer save, nor
installs a .json and .info from two different saves; a preset another
instance removed in the meantime is not installed. Without the guard, in
a cool-down, the scan still loads the presets but leaves their files
alone: an unreadable file stays for the next scan, and a derived
compatible printer is not written back. Read-only scans, which is what
the CLI does, take no lock and create no lock file.

AppConfig holds OrcaSlicer.conf.lock in load() and save(); load is
included because the Windows path restores from the .bak copy. Every
user preset writer and reader holds user.lock: Preset::save(), which
writes no .info when the preset itself could not be written, since an
.info without its preset reads as a cloud deletion request, save_info(),
reload() and remove_files(), each preset the scan commits, the
bundle metadata reads and write, the .info removal after a cloud-confirmed
delete, the orphaned-.info scan on the sync thread, the bundle folder
removal on unsubscribe and the physical printer writers and delete
paths. A bundle import extracts under cache/ into a folder per process
and per import, where no scan reads.

Preset JSON, .info, bundle metadata, physical printer and config files,
and the caches and state files that already used a temporary by hand,
now go through write_file_atomically(), which writes <file>.<pid>.<n>.tmp
beside the target and renames it over, so a reader that never waits sees
a complete old or new file. A symlink is followed; a target that is not
a regular file is written in place; and when no temporary can be created
beside an existing target, or the rename itself is refused, by a Windows
reader holding the file open or a mount that cannot replace in one step,
the helper writes in place as before, since losing the save is worse
than a torn read. On POSIX the rename replaces the
target atomically where the old code removed it first and left a window
with no file at all; only a mount that refuses a one-step replace gets
the old remove-then-rename. A crash between temporary and rename leaves
the temporary behind, which no scan reads. Preset::save() returns
whether it wrote the preset, so the scan counts a compatible printer it
could not write back as an error. A failed config write keeps
the config dirty, and the idle handler waits ten seconds before retrying
while an explicit save always tries.

* Run the Cross-Process Lock Test on Every Platform

The test that checks the guard yields to a lock held elsewhere forked a
child to hold it, so it was left out on Windows. The OS lock belongs to
the handle on Windows and to the open file description elsewhere, so a
second handle in the same process is refused like another instance
would be. The test now holds the lock that way and runs everywhere.
2026-10-01 22:18:21 +08:00
SoftFever 96bf754af9 Merge branch 'main' into claude/inspiring-knuth-7cp6pk-upstream 2026-10-01 21:57:57 +08:00
Kris Austin d1d14329d9 fix: exporting a sliced print again gives different G-code (#16025)
extrude_infill() and extrude_support() reversed the layer's extrusion
entities in place while chaining them, so each export started from the
previous one's reversed toolpaths, and each copy of an object from the
copy before it. The export-time region lists now hold const pointers,
and chaining reverses a clone instead.
2026-10-01 08:08:03 -03:00
HanifKoh 236a8786ef Keep the Orca Cloud Agent Tests Out of the System Keychain (#15980)
The display-name tests call set_user_session(), which persists the session.
The agent they built was in keychain mode, so every run saved a fake
OrcaSlicer/Auth session into the system keychain of whoever ran the tests,
replacing their real Orca Cloud login on any desktop with a working keychain.

Move them next to the other agent tests and build the agent the same way:
encrypted-file mode with a throwaway config directory.
2026-10-01 16:58:52 +08:00
HanifKoh 92d30fbc55 Clamp Ironing Line Spacing to a Usable Minimum (#15949)
An ironing line spacing of 0 reached the fillers from a 3MF, the CLI or
the per-filament override, which has no GUI guard. Concentric ironing
then never finished slicing, because a zero inset never shrinks the
region, and rectilinear ironing was silently dropped. Tiny positive
values produced an unprintable number of lines.

Top surface and support ironing now clamp the spacing to the 0.05 mm
floor the process GUI guard already enforces, so these configurations
iron at that spacing. Spacings at or above the floor, including every
shipped profile, are unchanged. The concentric filler also returns early
on a non-positive step so no other caller can hang it, and the filament
settings page now resets a too-small override the same way the process
page does.
2026-10-01 16:53:16 +08:00
SoftFever 377ebf2a03 Merge branch 'main' into claude/inspiring-knuth-7cp6pk-upstream 2026-10-01 14:51:35 +08:00
HanifKoh 6842d9c778 Keep the Plugin Tests' Python Packages Out of the Working Directory (#15981)
The plugin test fixtures start the interpreter before the test points
data_dir at its temporary directory, so PythonInterpreter creates
{data_dir}/python/packages and {data_dir}/log with an empty data_dir: a
python/ and log/ folder in whatever directory the tests run from. When that
is the test binary's folder, the next run's embedded-interpreter tests took
the stray python/ as their home and failed to start Python.

Give each fixture that initializes the plugin manager its own temporary
data directory, set up before initialize(), and only use the python/ folder
next to the test binary as the interpreter's home when it holds a standard
library.
2026-10-01 14:42:20 +08:00
HanifKoh 1a5bc8982d Stop Logged-Out Login Polling from Hitting the System Keychain (#15979)
With stealth mode off the home page asks for the login status every 2 s,
and while nobody is logged in that ends in clear_user_secret(), which
opened the system keychain and deleted the OrcaSlicer/Auth entry on the
UI thread every tick. A working keychain cost a D-Bus round trip per tick;
a keychain that never answers blocked the UI for 25 s per tick. It also
deleted a login another running instance had just saved, and ignored
use_encrypted_token_file, so opting out of the keychain did not help.

Remember whether this process read a secret from the store or wrote one,
and only then touch the store when a logged-out poll asks for a logout.
A logged-out instance never touches the keychain, and in encrypted-file
mode the poll no longer opens the keychain at all. A secret this process
cannot read, such as a token file encrypted for another OS user sharing
the data directory, is left alone by the poll. An explicit logout still
wipes both backends, so a token stranded by switching the token storage
option cannot sign the account back in later.
2026-10-01 14:41:50 +08:00
SoftFever 8aa5b1130a Allow nozzle variants to specify different cooling parameters (#16007)
# Description

Include variant-aware validation, temperature and pressure controls,
named nozzle selection, and filament sidebar refresh.

## Support nozzle-specific filament cooling and tuning

Filament presets can require different cooling and tuning for Standard
and High Flow nozzle variants. This change makes part and auxiliary
cooling, pressure advance, temperature limits, and multitool ramming
settings follow the selected variant, with matching UI controls and
profile validation.

The Snapmaker U1 profiles in #15755 / Snorca illustrate why this
matters:

| Profile | Standard cooling | High Flow cooling |
|---|---|---|
| Snapmaker ABS | Part fan: 15–15% | Part fan: 10–60% |
| Snapmaker PETG HF, 0.4 mm | Part fan: 20–40% | Part fan: 30–60% |
| Snapmaker PETG-CF | Part fan: 0–20%; auxiliary: 0% | Part fan: 5–40%;
auxiliary: 20% |
| Snapmaker PLA Matte | Auxiliary: 80% | Auxiliary: 100% |

These differences need to survive variant selection, editing, and
slicing. Shared single values continue to apply across variants, and
short filament arrays fall back to element zero, matching the loader.

### Additional changes

- Preserve named nozzle selections when refreshing the diameter
selector.
- Enable or disable the pressure-advance input for the selected variant.
- Initialize profile-validation slicing with the printer’s declared
nozzle volume type.
- Refresh filament controls after preset loading.

Profile changes remain separate in `u1-hf`.

### Validation

- All 13 focused variant-tool tests passed.
- Broader checks encountered an existing Windows path-separator
assertion failure, reproduced with upstream code.
- C++ build and GUI validation have not been run.

[How to Download Pull Requests Artifacts for
Testing](https://www.orcaslicer.com/wiki/how_to_download_pr_artifacts)
2026-10-01 13:53:22 +08:00
SoftFever ba361d9882 Texture displacement (#14662)
## Summary

Adds a new paint-style **Texture Displacement** gizmo that stamps
grayscale
height-map textures onto a model's surface and turns them into real
relief -
engraved or embossed detail - either as a live preview or baked into
actual mesh
geometry.

You paint where a texture applies, stack up to **8 blended texture
layers**
(image-editor semantics: Add / Subtract / Multiply / Divide), choose how
each is
projected onto the surface (Triplanar / Cylindrical / Spherical / LSCM
unwrap /
From-view), and - for the LSCM projection - lay the charts out by hand
in a new
dockable 2D **UV Editor** pane. Coarse models can be **Subdivided** or
**Remeshed** first so there are enough vertices to carry fine detail,
and the
result is committed with **Bake**, restricted to the painted area only.

The tool only ever affects the **painted** region; everything left
unpainted
keeps its original surface, and bake blends the relief seamlessly into
it with no
remeshing or hole-filling at the seam.

---

## User-facing features

- **Paint the affected area** with Brush (circle/sphere), single-Face,
or
Connected-area flood fill; or **Select whole model** - reusing the
existing
`TriangleSelector` / `FacetsAnnotation` painting machinery, one full
mask per
  layer slot.
- **Up to 8 texture layers**, each with its own paint mask, texture, and
  parameters, combined in slot order like image layers.
- **Per-layer controls:** Depth, Tile size, Rotation, Midlevel
(bidirectional
  emboss/engrave), Smoothing, Edge smoothing, Invert, Blend mode, Tile
  (Repeat / Mirrored-repeat / decal), and Projection.
- **Projection methods:** Triplanar (blended, seam-free across sharp
edges),
  Cylindrical, Spherical, **Unwrap (LSCM)** - a real CGAL conformal
  parameterization - and **From view** (slide-projector decals).
- **UV Editor pane** for LSCM layers: move / rotate / scale / snap / cut
/ join
islands, average texel density, Checker and Distortion overlays, manual
mark-
  seam workflow, live model update while dragging.
- **View modes:** Normal (true displaced geometry = what Bake produces),
Fast
(GPU bump-shaded approximation of the active layer), Checker, Distortion
  heatmap, and an independent Wireframe toggle.
- **Mesh prep:** Subdivide (1–5* uniform 1->4 split) with cyan-wireframe
preview,
  and CGAL isotropic **Remesh** to a target edge length.
- **Texture library:** 10 shipped seamless 512×512 grayscale height
maps, plus
import of any PNG/JPG/BMP (converted to an 8-bit grayscale map and
copied into
  the user data dir so app updates can't clobber it).
- **Bake** runs in the background (off the UI thread); the preview is
free to
  explore and only Bake changes the real mesh.

---

## How it works (implementation)

- **Bake is accumulate-then-displace and topology-preserving.** The
output mesh
  has exactly the input's vertices and triangles in the same order; only
displaced vertex positions differ. Each layer is evaluated against the
**base
mesh** and folded per-vertex into a shared accumulator via its blend
mode, then
every touched vertex moves once along its precomputed undisplaced
normal. This
replaced an earlier sequential re-mesh-per-layer design that was the
root cause
of the "second layer never applies" bug and made blend modes impossible.
- **Boundary vertices are pinned.** Any vertex shared with an unpainted
triangle
is never displaced, which is what keeps bakes seamless with zero
remeshing.
- **LSCM unwrap** uses a new `MeshBoolean::cgal::parameterize_lscm()`
built on
CGAL's already-vendored `Surface_mesh_parameterization` package - **no
new
  external dependency**.
- **Fast GPU preview** perturbs the shading normal from the height
gradient
(analytic mm-per-mm slope for triplanar; Mikkelsen's
screen-space-derivative
method for the conformal LSCM path), so apparent depth matches the bake.
- **Background jobs:** preview compute and bake both run off the UI
thread on the
shared job worker (queued, not `replace_job`, so a preview never cancels
an
  in-flight bake); a generation counter discards stale results.
- **UV Editor** shares the app's single real `wxGLContext` and reuses
the
registered `flat`/`flat_texture` shaders; island drags update one affine
matrix
  per island rather than re-uploading geometry.


---


## Backward compatibility & constraints

- **Feature is fully gated behind the new gizmo** - it adds no new
default
behavior and does not touch existing slicing, profiles, or defaults.
Models
  that never open the tool are unaffected.
- **Cross-platform** - pure `libslic3r` / `libslic3r_gui` /
`libslic3r_cgal`
code; no new dependency and no `deps/` rebuild. (Built and tested on
Windows;
  no platform-specific APIs introduced.)
- **`.3mf` compatibility:** **baked** relief round-trips fine, since it
becomes
ordinary mesh geometry via the existing serialization path. **Unbaked**
paint
masks and layer definitions are **not yet serialized** - see
Limitations. No
  existing project data is affected.

---

## Testing

Unit tests in `tests/libslic3r/test_texture_displacement.cpp` - **run
and
passing** (7 cases, 116 assertions). Coverage:

- `decode_height_texture` round-trip
- Empty-layer no-op
- Full-cube uniform displacement
- Boundary-vertex pinning on a hand-built fan mesh
- Regression: a **second layer over the same area actually contributes**
(the
  bug the bake rewrite fixed)
- Table-driven check of all four blend modes
- The lowest painted layer ignoring its blend mode

`BUILD_TESTS` is `OFF` in the checked-in cache; enable to run:

```bash
cmake -S . -B build -DBUILD_TESTS=ON
cmake --build build --config Release --target libslic3r_tests -- -m
./build/tests/libslic3r/Release/libslic3r_tests.exe "[TextureDisplacement]" --order rand
```

---
2026-10-01 12:40:33 +08:00
SoftFever 059e171954 Merge branch 'main' into nozzle-variant-cooling 2026-10-01 11:21:59 +08:00
harrierpigeon 4f110bc261 Belt scarf test: slice without a z-hop
The default 0.4 mm z-hop is a 0.57 mm move along the belt axis and its
return tripped the back-step check. Shipped belt profiles print without a
z-hop, so the test does too.
2026-09-30 17:42:16 -05:00
Kris Austin 865e9963c3 perf: speed up G-code export by 7-26% via typed config apply (#16026) 2026-09-30 18:58:22 -03:00
harrierpigeon 2c0570c97d Drop references to planning docs that are not in the tree
The MachineKinematics comments pointed at docs/superpowers plan files,
which are gitignored working notes.
2026-09-30 15:44:49 -05:00
harrierpigeon 6cf747808c Belt: never start a scarf joint seam below the layer
A scarf joint begins one layer height below the current layer and ramps
up along the wall. On a tilted belt that start is a step backwards along
the belt axis, into the previous layer's wall at the seam: 0.283 mm per
0.2 mm layer at 45 degrees. With an aligned seam the nozzle rams the same
spot on every layer. A BabyBelt Pro benchy with seam_slope_type=external
showed 601 such back-steps from layer 107 on, and in the field the belt
"jumped backwards" and the head knocked the part loose.

Belt printers now skip the scarf in GCode::extrude_loop, and the process
tab greys the scarf controls out for them, as it already does for arc
fitting. The regression test slices a cube on a belt with the scarf
enabled and checks the belt axis never steps back by a layer pitch.
2026-09-30 15:44:18 -05:00
harrierpigeon ad6afce67b Merge upstream/hanif/belt-printer-fixes into belt/final-round
Brings in upstream/belt-printer (the Sept 14 main merge) plus Hanif Koh's
21 review-fix commits from PR #15685, on top of the MachineKinematics
refactor and the purge-prism / tree-support / first-layer-speed fixes.

Conflict resolution:
- BeltGCodeWriter is gone (kinematics refactor), so Hanif's plate-offset
  fix for it is ported into GCodeWriter: the first-layer-plane checks in
  travel_to_xy / travel_to_xyz / _travel_to_z now evaluate the plate-local
  point, and BeltGCode::init_belt_writer hands the stored plate origin to
  the writer it installs.
- init_belt_writer(Print&) takes Hanif's signature; the BBL flag is set on
  the surviving writer by GCode::_do_export.
- The shared emit_belt_brim_bands() loop keeps the BeltFloorObjectGuard the
  local branch added, so apron bands classify first-layer height against
  their own object.
- eager_lift keeps effective_type: it now carries set_force_normal_lift().
- GCodeWriter's initializer list follows Hanif's member order with
  m_kinematics in its declared position.
- TreeSupport::detect_overhangs uses Hanif's clamped build_plate_tilt_slope()
  for the non-belt path and the belt shear for the belt path.
2026-09-30 15:22:19 -05:00
SoftFever 35a4d941b8 Sync the AMS recommended temperature range with the tray's nozzle variant 2026-10-01 02:54:18 +08:00
SoftFever c03f4925a9 Apply per-variant cooling, ramming and temperature range on nozzle-rack slices
Fan speeds, multi-tool ramming, the tower interface and flush temperature
fallbacks and the custom G-code placeholders now use the extruder variant a
filament prints with on each layer, instead of reading by filament id.
2026-10-01 02:54:18 +08:00
Claude 5254007a10 Merge main into the Design tab follow-up
main moved the CAD docs into docs/HLSD/design-tab.md and the offer
generator and atlas into scripts/CAD/ (#15803).

- The four docs this branch had edited are deleted as on main. What the
  branch changes about the design goes into the HLSD doc: the right-click
  is judged by drift over the whole press, with no time budget; a Text
  feature stores its outlines as well as its string, font and height; a
  new section on how the Design canvas renders bodies (studio lighting
  through the shared phong shader, B-rep edge ribbons).
- gen_offer_table.py keeps both main's atlas validation and this
  branch's L() markers on user-facing strings.
- The Text verb's hint is now changed in scripts/CAD/tool_atlas.json as
  well, so `gen_offer_table.py --check` passes.
- DesignPanel.cpp keeps the DesignTextDialog include and main's new
  path in the offer comment.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QK4VgguuCAk2hZLWgcjJb9
2026-09-30 18:00:46 +00:00
SoftFever e493289b62 Merge branch 'main' into nozzle-variant-cooling 2026-10-01 00:34:32 +08:00
a5413efc37 refactor: printer agent infrastructure changes to work with other printer agents aside from bambu (#15710)
* Add developer flag for printer agents

* Parse user print info on the UI thread to prevent heap corruption (#119)

get_user_print_info()'s HTTP fetch can run on a worker thread (e.g. BindJob),
but parse_user_print_info() mutates userMachineList (insert/erase/delete
MachineObject). on_machine_alive (SSDP) mutates the same maps on the UI thread
without locking, so parsing off-thread races the map and frees MachineObjects
out from under it -> heap corruption.

Keep all device-list mutation on the UI thread: parse inline when already on
the main thread, otherwise marshal via CallAfter so it stays serialized with
on_machine_alive.

* Prevent loss of user access code on LAN reselect

Keep user access code intact to maintain access rights even if
device slot is unpopulated, ensuring continuous connection
and status message reception.

* Harden send flow and separate upload failure recovery (#111)

* fix(send): harden FT send path + IP pre-flight UX

* Remove early returns

* Working Moonraker and Qidi printer agent transport (#104)

Folds the Qidi AMS box-mapping print
overrides (apply_box_mapping +
start_* wrappers) that the transport
fix builds on.

* Add support for runtime error status in plugins

Distinguish a loaded plugin whose
capability errored (RuntimeError,
warn-styled, stays checked) from a
load-time Error. Status now derives
via resolve_plugin_status(); enum
ordinal keeps dialog sort priority.
Unloading clears stale errors.

* Resolve duplicate agent ID conflicts

Reject a printer-agent capability
whose agent ID is already owned by
another capability or built-in:
flag the plugin error, disable the
capability, and warn the user
instead of silently ignoring it.

* fix: checkbox should depend on plugin is_loaded status

* Replace fake-enum printer agent dropdown (#121)

A dedicated PrinterAgentChoice field
reads rows straight from the live
agent registry and stores the agent
id string, replacing the fake-coEnum
index mapping. The field moves to
TabPrinter and registers with the
searcher so UnsavedChanges renders
it; the PhysicalPrinterDialog copy
and its update hook are removed
(#125). switch_printer_agent now
resolves ids via
resolve_printer_agent_id.

* Reset device selection on agent swap or unload (#124)

set_live_printer_agent centralizes
the swap: deselect the machine,
clear stale sidebar state and the
previous agent's Other Devices, then
install the new agent (or null when
its provider vanished). Plugin
load/unload callbacks refresh the
dropdown and re-run agent selection.
load_last_machine no longer falls
back to the first available machine.

* Gate agent mode behind use_printer_agents toggle

Replace per-printer auto-activation
(is_current_printer_agent_plugin)
with a global experimental AppConfig
toggle, default off: legacy
print-host behavior is unchanged
until the user opts in. The toggle
drives device-tab routing, print
button defaults, connect-button
visibility and sidebar layout, and
dedups machine-select dialog opens.

* Track BBLPrinterAgentPlugin.py

* Add printer-agent and plugin status tests

Ports the agent lifecycle, duplicate
agent-id, built-in-id clash and
status-resolution tests. The loader
runs on a detached worker thread, so
the lifecycle tests live in their own
executable. Tests install the
production unload-side registry
wiring themselves (no GUI in the
test binary) and register agents
manually so concurrent loads stay
deterministic.

* fix: pin HTTP to prevent connection refusal

Set `use_ssl` to false to ensure Moonraker
connectivity, as the service uses HTTP rather
than HTTPS, preventing connection issues. Initialize
device info early for reliable name resolution.

* Bring Moonraker device panel to feature parity

The monitor panel showed wrong or missing
data for Moonraker printers, and its
controls did nothing.

Push payload now carries layer number and
total layers. Remaining time replaces the
wrong total_duration - print_duration
formula. The chamber light toggle maps to
Klipper SET_PIN / SET_LED, and pause,
resume and stop post to
/printer/print/{action}. Task thumbnails
resolve via /server/files/thumbnails onto
a new MachineObject thumbnail url.

Filament sync switches to pull mode so the
agent is queried on demand.

Not compiled or run.

* Stop blocking print on unreported nozzle data

* fix: make Klipper macro lamp control reliable

* Surface Moonraker webcams and gate unrunnable controls

* Keep Bambu AMS dialect out of the agent waist

M620 is Bambu firmware dialect, not a
neutral command. Composing it in
MachineObject let non-Bambu agents
(Moonraker/Klipper) forward it and
report success on firmware that
cannot run it.

Agents now own the dialect: the
default refusal on IPrinterAgent
returns not-supported so the UI
can say so; BBLPrinterAgent keeps
the byte-identical composition.

* Fix multi-color filament logic

Reuse color decoding across functions to improve
code readability and maintain consistency in
multi-color filament handling.

* Move Moonraker commands off the UI thread

Pause/resume/stop, g-code sends, temps, and
light ran synchronous HTTP on the UI thread,
freezing the app up to 10s per click on slow
or unreachable printers.

Run them on a single agent-owned FIFO worker
so g-code ordering is preserved, while command
translation stays synchronous so unsupported-
command dialogs still work.

Add a pending-disabled state to the pause,
resume, and abort buttons for Moonraker-family
printers: the icon only flips once the
WebSocket reports the real state, which also
rules out double-click races.

* Show Snapmaker U1 camera in Device tab

The U1 exposes no /server/webcams/list entry;
its camera only captures after an explicit
camera.start_monitor RPC, which the Moonraker
websocket executes unauthenticated but only
answers over MQTT - so the call is fire and
forget.

Start the camera when the camera view is
shown and renew every 300 s: the printer
retires the capture task at ~362 s and
stop_monitor is accepted but ineffective,
so teardown is simply to stop renewing.

Frames land in monitor.jpg as still JPEGs
(~2 fps at interval 0), so the webview loads
a local HTML wrapper that repolls with a
cache buster.

* fix: start stream when camera URL changes

* fix: stop Qidi slot parse throwing on null

* Keep printer-agent progress in sync

Keep the shared task progress aligned with agent
reports that lack Bambu cloud task identity.

Release the lazily allocated task during reset to
avoid leaks when machine objects reconnect.

* docs: document the printer-agent subsystem

* fix: merge access codes into one

* Reconcile implementation split with PR tip

* feat: abstract remaining gcode commands in devicemanager

* refactor: abstract bambu specific protocol to printer agent

* refactor: push bbl workflows to bbl printer agent

* remove unused

* fix: default impl

* fix callback error

* fix: remove redundant cache

* specify api for getting file transfer url

* revert file transfer abstraction

* fix: ams filament mapping workflow

* feat: update qidi to use subscription based filament sync mode

* fix: resolve stubgen byte header conflict

* fix: ams sync info and periodic ams sync via subscription workflow

* fix: skip filament sync dialog if filamentSyncMode is none

* feat: parse nozzle information for qidi and moonraker printer agents

* fix: extend access code requirements t 0, 8 or more characters.

* remove irrelevant docs

* fix: remove heavy includes from IPrinterAgent

* fix: defer filesystem and camera abstractions

* fix: remote do_fetch_filament_info from tests

* cleanup moonraker and snapmaker printer agents

* fix: access codes regression

* fix: tests

* fix: printer agent switching on preset change

* fix: remove unused variable

* fix: snapmaker U1 SelectMachineDialog blocking print

* fix: merge artifact

* fix: clear up some unrelated changes

* feat: connect to cloud printer and monitor

* feat: connect to cloud printer and monitor

* feat: generic camera stream support for http snapshot and rtsp

* fix: build & access code UI

* feat: generic camera stream support for http snapshot and rtsp

* fix: build & access code UI

* feat: connect to cloud printer and monitor

* feat: connect to cloud printer and monitor

* fix: build errors

* feat: camera via webrtc

* fix: build

* fix: cmake

* feat: remove frame assembler and change config to set protocol

* fix: orcaprinteragent refactor

* fix: LAN paths and camera stream

* feat: use ffmpeg to render http camera stream

* fix: make model_id/dev_type optional instead of blocking

* fix: connect via ip dialog

* feat: LAN impl for Orca Printer Agent

* fix: model_id resolution method for non bambu printers

* fix: ffmpeg http camera stream jittering due to incomplete frames

* fix: revert sdcard check

* feat: check printer storage status before sending

* fix: moonraker printer agent hang on printer power cut

* fix: shim layer for any compatibiliity changes

* fix: cloud printers were using the wrong MQTT endpoint

* feat: cloud download via HTTP

* temp: doc for intended change

* fix: warnings

* fix: warnings

* fix: camera auto-play on startup

* fix: split infra from impl

* fix: uninitialized ams state blocking print

* Fixes nullptr deref

* Log first before std::move

* fix: printer agent virutal optional functions

* fix: parameterize orcaslicer_copy_test_dlls() for printer_agent_plugin_tests

* Revert "fix: parameterize orcaslicer_copy_test_dlls() for printer_agent_plugin_tests"

This reverts commit 2f566e3779.

* Guard libdatachannel. Remove unused code

* fix: unit tests & unused variables

* fix(ci): deps build order for datachannel

* Resolve printer agent first before getting cloud printer agent

* fix(ci): set depends openssl

* fix: re-include apply header guarded by ifdef __APPLE__

* fix(ci): add libdatachannel to flatpak manifest

* fix: add internal_developer_mode chekc back to MediaPlayCtrl::load()

* fix: invoke js clearInterval on WebMediaController::stop

* fix: change rtc log level

* fix: inject provider, agent id and generation to get_user_print_info to ensure correct metadata

* fix: revert moonraker specific behavior

* fix: remove stale comment

* fix: use ORCA_CLOUD_PROVIDER instead of hardcoded string

* fix: remove hardcoded ICE servers

* feat: enable https camera stream mode

* fix: move non-mandatory printer agent function stubs to IPrinterAgent

* fix: dedupe compatible printer type check

* fix: stop the correct media controller

* fix: scope get_my_machine_list to printers listed under the current printer agent

* fix: move printer agent plugin tests into test_plugin_lifecycle.cpp

* fix: always build bundled DataChannel dep

* fix: disable unused DataChannel media support

* revert: filament sync work

* fix: wrap command_* with small wrapper

* fix: regression bug, connecting to bambu needs bblp username

* fix: default impl for vendor agnostic gcode commansd

* refactor: media controller playback routing and ownership

* fix: bump libdatachannel ver & update flatpak to use tar instead

* fix: stop flatpak DataChannel build from re-cloning over the sandboxed network

* fix: update windows ffmpeg prebuild

* fix: update printer agent plugin API

* fix: shift camera signaling channel to network agent

* fix: follow external-packages for flatpak libdatachannel deps & add flatpak path to use source_dir

* feat: add printer-agent.md doc to HLSD

* fix: guard DeviceManager command dispatch when no printer agent is bound

* fix: port BBL implementations from #15711

* refactor: connect_printer api and dialog

* fix(tests): make omitted printer agent operations answer like a missing agent

* fix: preserve printer agent defaults in PrinterAgentPluginCapabilityTrampoline

* test: cover printer agent default command dispatch

* fix: validate windows FFmpeg avformat library

* feat: extend optional printer model warnings to calibration & ams workflows

* fix: handle malformed printer progress values safely

* fix: clear webview document on stop

* chore: reduce diagnostic logging level to trace

* refactor: centralize printer compatibility checks

* tests: add device manager integration coverage

* tests: cover WebMediaController lifecycle with wxWebView stub

* fix: make integration tests headless

* refactor: collapse command_ams_refresh_rfid and command_ams_refresh_rfid2

* refactor: make printer connection SSL agent-specific

* fix: persist input printer host and port

* fix: use correct device id for Moonraker connections

* fix: make moonraker gcode commands asynchronous

* fix: preserve moonraker device names

* fix: add include for non BBL_RELEASE_TO_PUBLIC path in BBLPrinterAgent

---------

Co-authored-by: Andrew <159703254+andrewsoonqn@users.noreply.github.com>
Co-authored-by: SoftFever <softfeverever@gmail.com>
Co-authored-by: Lam Wei Lun <weilun.lam@gmail.com>
2026-10-01 00:30:44 +08:00
Ian BassiandRodrigo Faselli 97700c5ab5 Gyroid Optimization (#16002)
Co-authored-by: Rodrigo Faselli <162915171+RF47@users.noreply.github.com>
2026-09-30 10:21:24 -03:00
Claude d33dfa8f2c Tests: keep CAD test names ASCII so Windows CTest can select them
OrcaSlicer#16019's Windows unit-test jobs failed on one test, "Hole
standards: ... 82° countersink": CTest passes the test name to Catch on
the command line, the ° arrives in the ANSI code page, the filter
matches no test and the run counts as failed ("No test cases matched",
"No tests ran"). The name now says "82 degree"; it was the only test
name in the suite outside ASCII.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QK4VgguuCAk2hZLWgcjJb9
2026-09-30 12:29:39 +00:00
Eric McCannandCodex 2d1e6d5b96 Merge U1 profile updates and require explicit cooling variant values
Remove permissive singleton and short-array validation. Cover cooling array widths, preserve tuning with explicit variant entries, and bump the Snapmaker bundle version.

Co-authored-by: Codex <codex@openai.com>
2026-09-30 07:47:43 -04:00
SoftFever 1e39a36a25 Bake a second painted region as finely as the first
Refinement now tapers off away from the paint, and the unpainted surface is kept out of
simplification, so what one bake leaves unpainted is still the model's own triangles when a later
bake paints there. A second bake used to refine the slivers and long triangles the first one left
around its stroke, and came out many times denser, with walls off the texture's lines.
2026-09-30 19:32:01 +08:00
SoftFever 36ebe0cde5 Let Cancel stop a texture bake while it simplifies
Once the budget is met the progress fraction stops moving, and a cancel was only checked when it
moved, so Cancel did nothing until the flat-face merging finished. It is now also checked every 16k
steps.
2026-09-30 19:31:54 +08:00
SoftFever 7c0a3ab916 Warn about the texture bake budget only when it cost detail
Meeting the triangle budget by merging flat faces alone no longer raises the warning, and the
warning now quotes the budget instead of the triangle count left after the flat faces were merged.
2026-09-30 19:31:48 +08:00
HanifKoh 94266c2819 Fill Settings Missing From a CLI Project From Its System Presets (#15953)
* Fill Settings Missing From a CLI Project From Its System Presets

A project saved before a printer or process option existed has no value
for it. The GUI takes such keys from the project's system preset; the
CLI left them at the option default, so e.g. extruder_clearance_dist_to_rod
sliced as 40 instead of the P1S's 33.

The CLI now resolves the project's system printer and process presets by
name and copies the keys the project lacks, skipping preset bookkeeping,
print-host keys, the extruder variant layout and keys the legacy handler
drops. PresetBundle::resolve_system_preset finds the vendor through its
manifest or preset cache, so it also works in release builds, which ship
vendors as caches only.

* Load a CLI Project's Printer and Process Settings as the GUI Does

The CLI filled only the keys a project lacked from its system preset.
The GUI builds a project preset differently: the project's values go
over the default preset, without the print-host keys, and every key
the project does not list in different_settings_to_system is refreshed
to its base system preset's current value. After a profile update the
two sliced the same project differently.

That step now lives in Preset::load_external_config, which takes plain
configs and gets the base preset from a callback, so the collection
lookup stays in PresetCollection. PresetBundle::project_different_keys
builds the kept-key set from a project's escaped entry, adding the
preset bookkeeping keys, and is used by both the GUI and the CLI.
PresetCollection::load_external_preset calls the shared step with no
change in behaviour.

The CLI now builds the project's printer and process configs with the
same step, passing the system preset from resolve_system_preset. That
drops the hand-kept skip list for print-host and variant-layout keys
and the legacy-key check: the shared step already excludes print-host
keys and maps per-variant values onto the base preset's variant layout.
The --uptodate path and a printer or process given on the command line
are left as they were.

Because the GUI's kept-key set always holds the bookkeeping keys, the
refresh runs for every project that names a system preset, so the CLI
now loads that preset's vendor on every such run.
2026-09-30 18:14:28 +08:00
Claude a4387e93f2 Design tab: revolve about a line of the sketch
Reported: the Revolve axis could only be the sketch plane's X or Y axis
through its origin, so a half-profile drawn beside a centerline, the
usual way, could not be revolved about that centerline.

- CadFeature::revolve_axis_entity names a Line of the profile sketch to
  revolve about (a construction centerline, or an edge of the profile
  itself); -1 keeps revolve_axis. Appended at the end of the framed
  recipe, so existing projects load and rebuild unchanged. Revolve and
  Surface Revolve resolve their axis in one place (revolve_axis_of); an
  index that no longer names a line fails with a reason.
- SketchEngine::make_revolve takes the world axis. A profile with points
  on both sides of it is refused with "the profile crosses the revolve
  axis"; MakeRevol failed there with no reason.
- The Axis list of both cards reads Plane X, Plane Y, then every line of
  the sketch, named as the constraint list names them (Centerline E4,
  Line E3). A fresh revolve preselects the sketch's centerline when it
  has exactly one. The gizmo turns about the chosen axis and draws it
  dashed; construction lines no longer pull its centre.

Tests: a rectangle beside a construction centerline revolves into the
tube of the expected volume along that line; about its own edge, into a
cylinder; an axis through it is refused with the reason; a stale axis
index fails with a reason; the axis survives save and load. The
truncated-recipe test accounts for the new tail field.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QK4VgguuCAk2hZLWgcjJb9
2026-09-30 08:34:46 +00:00
Claude b8d45c6bb1 Design tab: studio lighting and body edges in the 3D view
Reported: once extruded, a part is hard to read; the lighting says
little about its shape. Both lights of the object shaders sit near the
camera, so the sides of a part come out in almost the same tone, and
nothing marks where one face ends and the next begins.

- The phong shader gains a studio lighting model, chosen by a new
  lighting_model uniform: a sky/ground hemisphere in world space (up
  faces cool and bright, down faces warm and dark), a key light from the
  upper left and a weak fill from the right, a plastic-like highlight,
  and a darker base with a faint sheen toward the silhouette so curved
  faces read as round. GLCanvas3D::set_studio_lighting() makes a canvas
  draw its objects with it whatever the realistic-view preferences; only
  the Design canvas turns it on. Every canvas sets the uniform on each
  use, 0 for the slicer's, so they render as before.
- Every B-rep edge of a body is drawn as a thin dark line over it, depth
  tested and pulled a few pixels toward the eye so it wins against the
  faces meeting at it and hides behind the faces in front. The seam of a
  closed surface and degenerate edges are left out
  (GeometryEngine::display_edges). Edges are sampled once per shape and
  kept across recomputes that leave a body unchanged; bodies faded by
  body focus get fainter edges, and a dress-up previewing its result
  alone hides them with the bodies.

Tests: display_edges gives a box its 12 edges at their lengths, a
cylinder its two round rims without the seam, a cone its base rim
without the seam or the apex.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QK4VgguuCAk2hZLWgcjJb9
2026-09-30 08:34:46 +00:00