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feat: Add Z Anti-Aliasing (ZAA) contouring support

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Port Z Anti-Aliasing from BambuStudio-ZAA (https://github.com/adob/BambuStudio-ZAA)
to OrcaSlicer. ZAA eliminates stair-stepping on curved and sloped top surfaces
by raycasting each extrusion point against the original 3D mesh and micro-adjusting
Z height to follow the actual surface geometry.

Key changes:
- Add ContourZ.cpp raycasting algorithm (~330 lines)
- Extend geometry with 3D support (Point3, Line3, Polyline3, MultiPoint3)
- Template arc fitting for 2D/3D compatibility
- Change ExtrusionPath::polyline from Polyline to Polyline3
- Add 5 ZAA config options (zaa_enabled, zaa_min_z, etc.)
- Add posContouring pipeline step in PrintObject
- Update GCode writer for 3D coordinate output
- Add ZAA settings UI in Print Settings > Quality
- Add docs/ZAA.md with usage and implementation details

ZAA is opt-in and disabled by default. When disabled, the slicing pipeline
is unchanged.
This commit is contained in:
Matthias Nott
2026-02-09 20:42:26 +01:00
parent cae1567726
commit 963f8d86b7
57 changed files with 1817 additions and 204 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/slic3r/GUI/Plater.cpp
+8 -5
View File
@@ -3816,7 +3816,7 @@ static std::vector<Search::InputInfo> get_search_inputs(ConfigOptionMode mode)
auto& tabs_list = wxGetApp().tabs_list;
auto print_tech = wxGetApp().preset_bundle->printers.get_selected_preset().printer_technology();
for (auto tab : tabs_list)
if (tab->supports_printer_technology(print_tech))
if (tab && tab->supports_printer_technology(print_tech) && tab->get_config())
ret.emplace_back(Search::InputInfo {tab->get_config(), tab->type(), mode});
return ret;
@@ -3840,7 +3840,9 @@ void Sidebar::update_mode()
//obj_list()->get_sizer()->Show(m_mode > comSimple);
obj_list()->unselect_objects();
obj_list()->update_selections();
// Guard: during startup the 3D canvas selection may not be fully initialized
if (wxGetApp().initialized())
obj_list()->update_selections();
// obj_list()->update_object_menu();
Layout();
@@ -10384,12 +10386,13 @@ void Plater::priv::set_project_name(const wxString& project_name)
{
BOOST_LOG_TRIVIAL(trace) << __FUNCTION__ << __LINE__ << " project is:" << project_name;
m_project_name = project_name;
wxString name = project_name + " - OrcaSlicer-ZAA";
//update topbar title
#ifdef __WINDOWS__
wxGetApp().mainframe->SetTitle(m_project_name + " - OrcaSlicer");
wxGetApp().mainframe->topbar()->SetTitle(m_project_name);
wxGetApp().mainframe->SetTitle(name);
wxGetApp().mainframe->topbar()->SetTitle(name);
#else
wxGetApp().mainframe->SetTitle(m_project_name);
wxGetApp().mainframe->SetTitle(name);
if (!m_project_name.IsEmpty())
wxGetApp().mainframe->update_title_colour_after_set_title();
#endif