filter out tiny gaps

bbl/i18n/zh_cn/BambuStudio_zh_CN.po

@@ -4810,6 +4810,12 @@ msgstr "桥接"
 msgid "Gap infill"
 msgstr "填缝"
 
+msgid "Filter out tiny gaps"
+msgstr "忽略微小间隙"
+
+msgid "Filter out gaps smaller than the threshold specified. This setting won't affact top/bottom layers"
+msgstr "小于指定阈值的微小间隙不填充。本设置不会对顶/底层起作用"
+
 msgid "Support interface"
 msgstr "支撑面"
 

src/libslic3r/Fill/Fill.cpp

@@ -467,6 +467,7 @@ void Layer::make_fills(FillAdaptive::Octree* adaptive_fill_octree, FillAdaptive:
 		params.no_extrusion_overlap = surface_fill.params.overlap;
 
 		LayerRegion* layerm = this->m_regions[surface_fill.region_id];
+		params.config = &layerm->region().config();
 		for (ExPolygon& expoly : surface_fill.expolygons) {
 			f->no_overlap_expolygons = intersection_ex(layerm->fill_no_overlap_expolygons, ExPolygons() = { expoly });
 			// Spacing is modified by the filler to indicate adjustments. Reset it for each expolygon.

src/libslic3r/Fill/FillBase.hpp

@@ -74,6 +74,8 @@ struct FillParams
     bool            using_internal_flow{ false };
     //BBS: only used for new top surface pattern
     float           no_extrusion_overlap{ 0.0 };
+    const           PrintRegionConfig* config{ nullptr };
+
 };
 static_assert(IsTriviallyCopyable<FillParams>::value, "FillParams class is not POD (and it should be - see constructor).");
 

src/libslic3r/Fill/FillRectilinear.cpp

@@ -3169,9 +3169,17 @@ void FillMonotonicLineWGapFill::fill_surface_extrusion(const Surface* surface, c
         }
 
         if (!polylines.empty() && !is_bridge(params.extrusion_role)) {
+            if (!surface->is_top() && !surface->is_bottom()) {
+                polylines.erase(std::remove_if(polylines.begin(), polylines.end(),
+                    [&](const ThickPolyline& p) {
+                        return p.length() < scale_(params.config->filter_out_gap_fill.value);
+                    }), polylines.end());
+            }
+
             ExtrusionEntityCollection gap_fill;
             variable_width(polylines, erGapFill, params.flow, gap_fill.entities);
             coll_nosort->append(std::move(gap_fill.entities));
+
         }
     }
 

src/libslic3r/Layer.cpp

@@ -172,6 +172,7 @@ void Layer::make_perimeters()
 		                && config.outer_wall_speed    == other_config.outer_wall_speed
 		                && config.small_perimeter_speed    == other_config.small_perimeter_speed
                         && config.gap_infill_speed.value == other_config.gap_infill_speed.value
+                        && config.filter_out_gap_fill.value == other_config.filter_out_gap_fill.value
 		                && config.detect_overhang_wall                   == other_config.detect_overhang_wall
 		                && config.opt_serialize("inner_wall_line_width") == other_config.opt_serialize("inner_wall_line_width")
 		                && config.detect_thin_wall                  == other_config.detect_thin_wall

src/libslic3r/PerimeterGenerator.cpp

@@ -715,6 +715,15 @@ void PerimeterGenerator::process()
                 ++ irun;
             }
 #endif
+            // SoftFever: don't filter out tiny gap fills for first and top layer. So that the print looks better :)
+            if (this->layer_id != 0 && this->upper_slices != nullptr)
+            {
+                polylines.erase(std::remove_if(polylines.begin(), polylines.end(),
+                    [&](const ThickPolyline& p) {
+                        return p.length() < scale_(config->filter_out_gap_fill.value);
+                    }), polylines.end());
+            }
+
 
             if (! polylines.empty()) {
 				ExtrusionEntityCollection gap_fill;
@@ -729,6 +738,7 @@ void PerimeterGenerator::process()
                 // therefore it may cover the area, but no the volume.
                 last = diff_ex(last, gap_fill.polygons_covered_by_width(10.f));
                 this->gap_fill->append(std::move(gap_fill.entities));
+
 			}
         }
 

src/libslic3r/Preset.cpp

@@ -346,6 +346,7 @@ void Preset::normalize(DynamicPrintConfig &config)
         }
     }
 
+
     handle_legacy_sla(config);
 }
 
@@ -697,7 +698,7 @@ static std::vector<std::string> s_Preset_print_options {
 #endif /* HAS_PRESSURE_EQUALIZER */
     "inner_wall_speed", "outer_wall_speed", "small_perimeter_speed", "small_perimeter_threshold", "sparse_infill_speed", "internal_solid_infill_speed",
     "top_surface_speed", "support_speed", "support_object_xy_distance", "support_interface_speed",
-    "bridge_speed", "bridge_angle", "gap_infill_speed", "travel_speed", "travel_speed_z", "initial_layer_speed",
+    "bridge_speed", "bridge_angle", "filter_out_gap_fill", "gap_infill_speed", "travel_speed", "travel_speed_z", "initial_layer_speed",
     "outer_wall_acceleration", "inner_wall_acceleration", "initial_layer_acceleration", "top_surface_acceleration", "default_acceleration", "travel_acceleration", "skirt_loops", "skirt_distance", "skirt_height", "draft_shield",
     "default_jerk", "outer_wall_jerk", "inner_wall_jerk", "top_surface_jerk", "initial_layer_jerk","travel_jerk",
     "brim_width", "brim_object_gap", "brim_type", "enable_support", "support_type", "support_threshold_angle", "enforce_support_layers",

src/libslic3r/PrintConfig.cpp

@@ -1488,6 +1488,13 @@ void PrintConfigDef::init_fff_params()
     def->mode = comAdvanced;
     def->set_default_value(new ConfigOptionFloat(0.8));
 
+    def = this->add("filter_out_gap_fill", coFloat);
+    def->label = L("Filter out tiny gaps");
+    def->category = L("Layers and Perimeters");
+    def->tooltip = L("Filter out gaps smaller than the threshold specified. This setting won't affact top/bottom layers");
+    def->mode = comAdvanced;
+    def->set_default_value(new ConfigOptionFloat(0));
+    
     def = this->add("gap_infill_speed", coFloat);
     def->label = L("Gap infill");
     def->category = L("Speed");

src/libslic3r/PrintConfig.hpp

@@ -679,6 +679,7 @@ PRINT_CONFIG_CLASS_DEFINE(
     ((ConfigOptionEnum<FuzzySkinType>,  fuzzy_skin))
     ((ConfigOptionFloat,                fuzzy_skin_thickness))
     ((ConfigOptionFloat,                fuzzy_skin_point_distance))
+    ((ConfigOptionFloat,                 filter_out_gap_fill))
     ((ConfigOptionFloat,                gap_infill_speed))
     ((ConfigOptionInt,                  sparse_infill_filament))
     ((ConfigOptionFloat,                sparse_infill_line_width))

src/libslic3r/PrintObject.cpp

@@ -673,7 +673,8 @@ bool PrintObject::invalidate_state_by_config_options(
             || opt_key == "inner_wall_line_width"
             || opt_key == "infill_wall_overlap") {
             steps.emplace_back(posPerimeters);
-        } else if (opt_key == "gap_infill_speed") {
+        } else if (opt_key == "gap_infill_speed"
+            || opt_key == "filter_out_gap_fill" ) {
             // Return true if gap-fill speed has changed from zero value to non-zero or from non-zero value to zero.
             auto is_gap_fill_changed_state_due_to_speed = [&opt_key, &old_config, &new_config]() -> bool {
                 if (opt_key == "gap_infill_speed") {
@@ -687,9 +688,9 @@ bool PrintObject::invalidate_state_by_config_options(
             };
 
             // Filtering of unprintable regions in multi-material segmentation depends on if gap-fill is enabled or not.
-            // So step posSlice is invalidated when gap-fill was enabled/disabled by option "gap_fill_enabled" or by
+            // So step posSlice is invalidated when gap-fill was enabled/disabled by option "filter_out_gap_fill" or by
             // changing "gap_infill_speed" to force recomputation of the multi-material segmentation.
-            if (this->is_mm_painted() && (opt_key == "gap_infill_speed" && is_gap_fill_changed_state_due_to_speed()))
+            if (this->is_mm_painted() && (opt_key == "filter_out_gap_fill" && (opt_key == "gap_infill_speed" && is_gap_fill_changed_state_due_to_speed())))
                 steps.emplace_back(posSlice);
             steps.emplace_back(posPerimeters);
         } else if (

src/slic3r/GUI/PresetHints.cpp

@@ -103,7 +103,7 @@ std::string PresetHints::maximum_volumetric_flow_description(const PresetBundle
     double bridge_flow                = print_config.opt_float("bridge_flow");
     double inner_wall_speed                  = print_config.opt_float("inner_wall_speed");
     double outer_wall_speed         = print_config.get_abs_value("outer_wall_speed", inner_wall_speed);
-    // double gap_infill_speed                   = print_config.opt_bool("gap_fill_enabled") ? print_config.opt_float("gap_infill_speed") : 0.;
+    // double gap_infill_speed                   = print_config.opt_bool("filter_out_gap_fill") ? print_config.opt_float("gap_infill_speed") : 0.;
     double sparse_infill_speed                     = print_config.opt_float("sparse_infill_speed");
     double small_perimeter_speed            = print_config.get_abs_value("small_perimeter_speed", inner_wall_speed);
     double internal_solid_infill_speed               = print_config.opt_float("internal_solid_infill_speed");

src/slic3r/GUI/Tab.cpp

@@ -1806,6 +1806,7 @@ void TabPrint::build()
         optgroup->append_single_option_line("sparse_infill_pattern", "fill-patterns#infill types and their properties of sparse");
         optgroup->append_single_option_line("top_surface_pattern", "fill-patterns#Infill of the top surface and bottom surface");
         optgroup->append_single_option_line("bottom_surface_pattern", "fill-patterns#Infill of the top surface and bottom surface");
+        optgroup->append_single_option_line("filter_out_gap_fill");
 
         optgroup = page->new_optgroup(L("Advanced"), L"param_advanced");
         optgroup->append_single_option_line("infill_wall_overlap");