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This commit is contained in:
Ian Bassi
2026-08-14 11:52:47 -03:00
committed by SoftFever
parent 42f708bbb6
commit 3c37bf9ca4
6 changed files with 293 additions and 44 deletions
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95
tests/libslic3r/test_3mf.cpp
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@@ -1,5 +1,6 @@
#include "libslic3r/Model.hpp"
#include "libslic3r/TriangleSelector.hpp"
#include "libslic3r/Format/3mf.hpp"
#include "libslic3r/Format/bbs_3mf.hpp"
#include "libslic3r/Format/STL.hpp"
@@ -497,3 +498,97 @@ SCENARIO("Nozzle-group metadata .3mf round-trip", "[3mf][MultiNozzle]") {
delete plate;
}
}
// A mixed-color filament occupies an ordinary filament slot, and painting with it stores an
// ordinary extruder state — a project saved by BambuStudio encodes filament 5 of a 5-slot setup
// as paint state 5, with the mix described by the parallel filament_mixed_* project arrays. This
// pins both halves of that contract at the .3mf layer: the project keys and the painted states
// must come back exactly as written.
SCENARIO("Mixed-color filament setup and painting round-trip through a .3mf", "[3mf][MixedFilament]") {
GIVEN("a painted model whose project config describes a mixed filament in the last slot") {
Model model;
std::string src_file = std::string(TEST_DATA_DIR) + "/test_3mf/Prusa.stl";
REQUIRE(load_stl(src_file.c_str(), &model));
model.add_default_instances();
// Both the exporter and the importer stage Metadata/project_settings.config through the
// model's backup path; point them at writable temp dirs.
ScopedTemporaryDir backup_dir("orca_mixed_src");
model.set_backup_path(backup_dir.string());
ModelVolume* mv = model.objects.front()->volumes.front();
{
TriangleSelector selector(mv->mesh());
selector.set_facet(0, EnforcerBlockerType::Extruder5); // the mixed slot
selector.set_facet(1, EnforcerBlockerType::Extruder2);
REQUIRE(mv->mmu_segmentation_facets.set(selector));
}
DynamicPrintConfig config = DynamicPrintConfig::full_print_config();
config.set_key_value("filament_colour", new ConfigOptionStrings(
{ "#00AE42", "#FFFF00", "#FF0000", "#0000FF", "#FF6A26" }));
config.set_key_value("filament_is_mixed", new ConfigOptionBools(
{ false, false, false, false, true }));
config.set_key_value("filament_mixed_components", new ConfigOptionStrings(
{ "", "", "", "", "3,2" }));
config.set_key_value("filament_mixed_sublayer_ratios", new ConfigOptionStrings(
{ "", "", "", "", "0.4200,0.5800" }));
WHEN("stored to and reloaded from a .3mf") {
ScopedTemporaryFile temp(".3mf");
const std::string test_file = temp.string();
PlateData* plate = new PlateData();
plate->plate_index = 0;
StoreParams store_params;
store_params.path = test_file.c_str();
store_params.model = &model;
store_params.config = &config;
store_params.strategy = SaveStrategy::Zip64 | SaveStrategy::Silence;
store_params.plate_data_list.push_back(plate);
REQUIRE(store_bbs_3mf(store_params));
Model dst_model;
ScopedTemporaryDir dst_backup_dir("orca_mixed_dst");
dst_model.set_backup_path(dst_backup_dir.string());
DynamicPrintConfig dst_config;
ConfigSubstitutionContext ctxt{ ForwardCompatibilitySubstitutionRule::Enable };
PlateDataPtrs dst_plates;
std::vector<Preset*> project_presets;
bool is_bbl_3mf = false, is_orca_3mf = false;
Semver file_version;
REQUIRE(load_bbs_3mf(test_file.c_str(), &dst_config, &ctxt, &dst_model, &dst_plates,
&project_presets, &is_bbl_3mf, &is_orca_3mf, &file_version, nullptr,
LoadStrategy::LoadModel | LoadStrategy::LoadConfig));
THEN("the mixed-filament project keys survive") {
auto* is_mixed = dst_config.option<ConfigOptionBools>("filament_is_mixed");
REQUIRE(is_mixed != nullptr);
REQUIRE(is_mixed->values == std::vector<unsigned char>({ 0, 0, 0, 0, 1 }));
auto* components = dst_config.option<ConfigOptionStrings>("filament_mixed_components");
REQUIRE(components != nullptr);
REQUIRE(components->values.size() == 5);
REQUIRE(components->values[4] == "3,2");
auto* ratios = dst_config.option<ConfigOptionStrings>("filament_mixed_sublayer_ratios");
REQUIRE(ratios != nullptr);
REQUIRE(ratios->values.size() == 5);
REQUIRE(ratios->values[4] == "0.4200,0.5800");
}
THEN("the painted facets survive, including the one painted with the mixed slot") {
REQUIRE(dst_model.objects.size() == 1);
ModelVolume* dst_mv = dst_model.objects.front()->volumes.front();
REQUIRE_FALSE(dst_mv->mmu_segmentation_facets.empty());
REQUIRE(dst_mv->mmu_segmentation_facets.has_facets(*dst_mv, EnforcerBlockerType::Extruder2));
REQUIRE(dst_mv->mmu_segmentation_facets.has_facets(*dst_mv, EnforcerBlockerType::Extruder5));
}
release_PlateData_list(dst_plates);
delete plate; // store_bbs_3mf does not take ownership of the source plate
}
}
}