diff --git a/lib/Slic3r/GUI/Plater/3DPreview.pm b/lib/Slic3r/GUI/Plater/3DPreview.pm
index 9ff3461e0..488938267 100644
--- a/lib/Slic3r/GUI/Plater/3DPreview.pm
+++ b/lib/Slic3r/GUI/Plater/3DPreview.pm
@@ -94,8 +94,9 @@ sub new {
       $checklist_features->Check($i, 1);
     }
     
-    my $checkbox_travel = Wx::CheckBox->new($self, -1, "Travel");    
+    my $checkbox_travel = Wx::CheckBox->new($self, -1, "Travel");
     my $checkbox_retractions = Wx::CheckBox->new($self, -1, "Retractions");    
+    my $checkbox_unretractions = Wx::CheckBox->new($self, -1, "Unretractions");    
 # ===================== ENRICO_GCODE_PREVIEW ==================================================    
 
     my $hsizer = Wx::BoxSizer->new(wxHORIZONTAL);
@@ -116,6 +117,7 @@ sub new {
     $vsizer_outer->Add($checklist_features, 0, wxTOP | wxALL | wxALIGN_CENTER_HORIZONTAL, 5);
     $vsizer_outer->Add($checkbox_travel, 0, wxEXPAND | wxALL | wxALIGN_CENTER_VERTICAL, 5);
     $vsizer_outer->Add($checkbox_retractions, 0, wxEXPAND | wxALL | wxALIGN_CENTER_VERTICAL, 5);
+    $vsizer_outer->Add($checkbox_unretractions, 0, wxEXPAND | wxALL | wxALIGN_CENTER_VERTICAL, 5);
 # ===================== ENRICO_GCODE_PREVIEW ==================================================    
 
     my $sizer = Wx::BoxSizer->new(wxHORIZONTAL);
@@ -228,6 +230,11 @@ sub new {
         $self->auto_zoom(0);
         $self->reload_print;
     });
+    EVT_CHECKBOX($self, $checkbox_unretractions, sub {
+        $self->print->set_gcode_preview_unretractions_visible($checkbox_unretractions->IsChecked());
+        $self->auto_zoom(0);
+        $self->reload_print;
+    });
 # ===================== ENRICO_GCODE_PREVIEW ==================================================    
     
     $self->SetSizer($sizer);
diff --git a/xs/src/libslic3r/GCode/Analyzer.cpp b/xs/src/libslic3r/GCode/Analyzer.cpp
index 467e2b6ae..e00bd5daf 100644
--- a/xs/src/libslic3r/GCode/Analyzer.cpp
+++ b/xs/src/libslic3r/GCode/Analyzer.cpp
@@ -567,8 +567,18 @@ void GCodeAnalyzer::PreviewData::Travel::set_default()
     is_visible = false;
 }
 
+const GCodeAnalyzer::PreviewData::Color GCodeAnalyzer::PreviewData::Retraction::Default_Color = GCodeAnalyzer::PreviewData::Color(1.0f, 1.0f, 1.0f, 1.0f);
+
+GCodeAnalyzer::PreviewData::Retraction::Position::Position(const Point3& position, float width, float height)
+    : position(position)
+    , width(width)
+    , height(height)
+{
+}
+
 void GCodeAnalyzer::PreviewData::Retraction::set_default()
 {
+    color = Default_Color;
     is_visible = false;
 };
 
@@ -582,6 +592,7 @@ void GCodeAnalyzer::PreviewData::set_default()
     extrusion.set_default();
     travel.set_default();
     retraction.set_default();
+    unretraction.set_default();
 }
 
 void GCodeAnalyzer::PreviewData::reset()
@@ -589,6 +600,7 @@ void GCodeAnalyzer::PreviewData::reset()
     extrusion.layers.clear();
     travel.polylines.clear();
     retraction.positions.clear();
+    unretraction.positions.clear();
 }
 
 const GCodeAnalyzer::PreviewData::Color& GCodeAnalyzer::PreviewData::get_extrusion_role_color(ExtrusionRole role) const
@@ -658,6 +670,9 @@ void GCodeAnalyzer::calc_gcode_preview_data(Print& print)
 
     // calculates retractions
     _calc_gcode_preview_retractions(print);
+
+    // calculates unretractions
+    _calc_gcode_preview_unretractions(print);
 }
 
 void GCodeAnalyzer::_process_gcode_line(GCodeReader&, const GCodeReader::GCodeLine& line)
@@ -1259,10 +1274,24 @@ void GCodeAnalyzer::_calc_gcode_preview_retractions(Print& print)
 
     for (const GCodeMove& move : retraction_moves->second)
     {
-        print.gcode_preview.retraction.positions.emplace_back(scale_(move.start_position.x), scale_(move.start_position.y), scale_(move.start_position.z));
+        // store position
+        Point3 position(scale_(move.start_position.x), scale_(move.start_position.y), scale_(move.start_position.z));
+        print.gcode_preview.retraction.positions.emplace_back(position, move.data.width, move.data.height);
     }
+}
 
-    int a = 0;
+void GCodeAnalyzer::_calc_gcode_preview_unretractions(Print& print)
+{
+    TypeToMovesMap::iterator unretraction_moves = m_moves_map.find(GCodeMove::Unretract);
+    if (unretraction_moves == m_moves_map.end())
+        return;
+
+    for (const GCodeMove& move : unretraction_moves->second)
+    {
+        // store position
+        Point3 position(scale_(move.start_position.x), scale_(move.start_position.y), scale_(move.start_position.z));
+        print.gcode_preview.unretraction.positions.emplace_back(position, move.data.width, move.data.height);
+    }
 }
 
 GCodeAnalyzer::PreviewData::Color operator + (const GCodeAnalyzer::PreviewData::Color& c1, const GCodeAnalyzer::PreviewData::Color& c2)
diff --git a/xs/src/libslic3r/GCode/Analyzer.hpp b/xs/src/libslic3r/GCode/Analyzer.hpp
index 8236772fb..afc863998 100644
--- a/xs/src/libslic3r/GCode/Analyzer.hpp
+++ b/xs/src/libslic3r/GCode/Analyzer.hpp
@@ -375,7 +375,21 @@ public:
 
         struct Retraction
         {
-            Points3 positions;
+            static const Color Default_Color;
+
+            struct Position
+            {
+                Point3 position;
+                float width;
+                float height;
+
+                Position(const Point3& position, float width, float height);
+            };
+
+            typedef std::vector<Position> PositionsList;
+
+            PositionsList positions;
+            Color color;
             bool is_visible;
 
             void set_default();
@@ -384,6 +398,7 @@ public:
         Extrusion extrusion;
         Travel travel;
         Retraction retraction;
+        Retraction unretraction;
 
         PreviewData();
 
@@ -515,6 +530,7 @@ private:
     void _calc_gcode_preview_extrusion_layers(Print& print);
     void _calc_gcode_preview_travel(Print& print);
     void _calc_gcode_preview_retractions(Print& print);
+    void _calc_gcode_preview_unretractions(Print& print);
 };
 
 GCodeAnalyzer::PreviewData::Color operator + (const GCodeAnalyzer::PreviewData::Color& c1, const GCodeAnalyzer::PreviewData::Color& c2);
diff --git a/xs/src/libslic3r/Print.cpp b/xs/src/libslic3r/Print.cpp
index 0d984d6da..2173ae9b1 100644
--- a/xs/src/libslic3r/Print.cpp
+++ b/xs/src/libslic3r/Print.cpp
@@ -98,6 +98,11 @@ void Print::set_gcode_preview_retractions_visible(bool visible)
 {
     gcode_preview.retraction.is_visible = visible;
 }
+
+void Print::set_gcode_preview_unretractions_visible(bool visible)
+{
+    gcode_preview.unretraction.is_visible = visible;
+}
 #endif // ENRICO_GCODE_PREVIEW
 //############################################################################################################
 
diff --git a/xs/src/libslic3r/Print.hpp b/xs/src/libslic3r/Print.hpp
index 7a69973de..2ded86ee9 100644
--- a/xs/src/libslic3r/Print.hpp
+++ b/xs/src/libslic3r/Print.hpp
@@ -271,6 +271,7 @@ public:
     bool is_gcode_preview_extrusion_role_enabled(ExtrusionRole role);
     void set_gcode_preview_travel_visible(bool visible);
     void set_gcode_preview_retractions_visible(bool visible);
+    void set_gcode_preview_unretractions_visible(bool visible);
 #endif // ENRICO_GCODE_PREVIEW
 //############################################################################################################
 
diff --git a/xs/src/slic3r/GUI/3DScene.cpp b/xs/src/slic3r/GUI/3DScene.cpp
index 85c044db8..4429d7449 100644
--- a/xs/src/slic3r/GUI/3DScene.cpp
+++ b/xs/src/slic3r/GUI/3DScene.cpp
@@ -880,6 +880,56 @@ static void thick_lines_to_indexed_vertex_array(const Lines3& lines,
 #undef TOP
 #undef BOTTOM
 }
+
+static void point_to_indexed_vertex_array(const Point3& point,
+    double width,
+    double height,
+    GLIndexedVertexArray& volume)
+{
+    // builds a double piramid, with vertices on the local axes, around the point
+
+    Pointf3 center = Pointf3::new_unscale(point);
+
+    double scale_factor = 1.0;
+    double w = scale_factor * width;
+    double h = scale_factor * height;
+
+    // new vertices ids
+    int idx_last = int(volume.vertices_and_normals_interleaved.size() / 6);
+    int idxs[6];
+    for (int i = 0; i < 6; ++i)
+    {
+        idxs[i] = idx_last + i;
+    }
+
+    Vectorf3 displacement_x(w, 0.0, 0.0);
+    Vectorf3 displacement_y(0.0, w, 0.0);
+    Vectorf3 displacement_z(0.0, 0.0, h);
+
+    Vectorf3 unit_x(1.0, 0.0, 0.0);
+    Vectorf3 unit_y(0.0, 1.0, 0.0);
+    Vectorf3 unit_z(0.0, 0.0, 1.0);
+
+    // vertices
+    volume.push_geometry(center - displacement_x, -unit_x); // idxs[0]
+    volume.push_geometry(center + displacement_x, unit_x);  // idxs[1]
+    volume.push_geometry(center - displacement_y, -unit_y); // idxs[2]
+    volume.push_geometry(center + displacement_y, unit_y);  // idxs[3]
+    volume.push_geometry(center - displacement_z, -unit_z); // idxs[4]
+    volume.push_geometry(center + displacement_z, unit_z);  // idxs[5]
+
+    // top piramid faces
+    volume.push_triangle(idxs[0], idxs[2], idxs[5]);
+    volume.push_triangle(idxs[2], idxs[1], idxs[5]);
+    volume.push_triangle(idxs[1], idxs[3], idxs[5]);
+    volume.push_triangle(idxs[3], idxs[0], idxs[5]);
+
+    // bottom piramid faces
+    volume.push_triangle(idxs[2], idxs[0], idxs[4]);
+    volume.push_triangle(idxs[1], idxs[2], idxs[4]);
+    volume.push_triangle(idxs[3], idxs[1], idxs[4]);
+    volume.push_triangle(idxs[0], idxs[3], idxs[4]);
+}
 #endif // ENRICO_GCODE_PREVIEW
 //############################################################################################################
 
@@ -904,6 +954,14 @@ static void thick_lines_to_verts(const Lines3& lines,
 {
     thick_lines_to_indexed_vertex_array(lines, widths, heights, closed, volume.indexed_vertex_array);
 }
+
+static void point_to_verts(const Point3& point,
+    double width,
+    double height,
+    GLVolume& volume)
+{
+    point_to_indexed_vertex_array(point, width, height, volume.indexed_vertex_array);
+}
 #endif // ENRICO_GCODE_PREVIEW
 //############################################################################################################
 
@@ -1002,6 +1060,13 @@ static void polyline3_to_verts(const Polyline3& polyline, double width, double h
     std::vector<double> heights(lines.size(), height);
     thick_lines_to_verts(lines, widths, heights, false, volume);
 }
+
+static void point3_to_verts(const Point3& point, double width, double height, const Point& copy, GLVolume& volume)
+{
+    Point3 p = point;
+    p.translate(copy);
+    point_to_verts(p, width, height, volume);
+}
 #endif // ENRICO_GCODE_PREVIEW
 //############################################################################################################
 
@@ -1044,6 +1109,7 @@ void _3DScene::load_gcode_preview(const Print* print, GLVolumeCollection* volume
     _load_gcode_extrusion_paths(*print, *volumes, use_VBOs);
     _load_gcode_travel_paths(*print, *volumes, use_VBOs);
     _load_gcode_retractions(*print, *volumes, use_VBOs);
+    _load_gcode_unretractions(*print, *volumes, use_VBOs);
 }
 #endif // ENRICO_GCODE_PREVIEW
 //############################################################################################################
@@ -1560,6 +1626,55 @@ void _3DScene::_load_gcode_retractions(const Print& print, GLVolumeCollection& v
 {
     if (print.gcode_preview.retraction.is_visible)
     {
+        volumes.volumes.emplace_back(new GLVolume(print.gcode_preview.retraction.color.rgba));
+        GLVolume* volume = volumes.volumes.back();
+
+        if (volume != nullptr)
+        {
+            Point origin(0, 0);
+            for (const GCodeAnalyzer::PreviewData::Retraction::Position& position : print.gcode_preview.retraction.positions)
+            {
+                coordf_t print_z = unscale(position.position.z);
+                volume->print_zs.push_back(print_z);
+                volume->offsets.push_back(volume->indexed_vertex_array.quad_indices.size());
+                volume->offsets.push_back(volume->indexed_vertex_array.triangle_indices.size());
+
+                // adds point to volume
+                point3_to_verts(position.position, position.width, position.height, origin, *volume);
+            }
+
+            // finalizes volume
+            volume->bounding_box = volume->indexed_vertex_array.bounding_box();
+            volume->indexed_vertex_array.finalize_geometry(use_VBOs);
+        }
+    }
+}
+
+void _3DScene::_load_gcode_unretractions(const Print& print, GLVolumeCollection& volumes, bool use_VBOs)
+{
+    if (print.gcode_preview.unretraction.is_visible)
+    {
+        volumes.volumes.emplace_back(new GLVolume(print.gcode_preview.unretraction.color.rgba));
+        GLVolume* volume = volumes.volumes.back();
+
+        if (volume != nullptr)
+        {
+            Point origin(0, 0);
+            for (const GCodeAnalyzer::PreviewData::Retraction::Position& position : print.gcode_preview.unretraction.positions)
+            {
+                coordf_t print_z = unscale(position.position.z);
+                volume->print_zs.push_back(print_z);
+                volume->offsets.push_back(volume->indexed_vertex_array.quad_indices.size());
+                volume->offsets.push_back(volume->indexed_vertex_array.triangle_indices.size());
+
+                // adds point to volume
+                point3_to_verts(position.position, position.width, position.height, origin, *volume);
+            }
+
+            // finalizes volume
+            volume->bounding_box = volume->indexed_vertex_array.bounding_box();
+            volume->indexed_vertex_array.finalize_geometry(use_VBOs);
+        }
     }
 }
 #endif // ENRICO_GCODE_PREVIEW
diff --git a/xs/src/slic3r/GUI/3DScene.hpp b/xs/src/slic3r/GUI/3DScene.hpp
index d4fc0ed67..35c41ec2f 100644
--- a/xs/src/slic3r/GUI/3DScene.hpp
+++ b/xs/src/slic3r/GUI/3DScene.hpp
@@ -383,6 +383,7 @@ private:
     static void _load_gcode_extrusion_paths(const Print& print, GLVolumeCollection& volumes, bool use_VBOs);
     static void _load_gcode_travel_paths(const Print& print, GLVolumeCollection& volumes, bool use_VBOs);
     static void _load_gcode_retractions(const Print& print, GLVolumeCollection& volumes, bool use_VBOs);
+    static void _load_gcode_unretractions(const Print& print, GLVolumeCollection& volumes, bool use_VBOs);
 #endif // ENRICO_GCODE_PREVIEW
 //############################################################################################################
 };
diff --git a/xs/xsp/Print.xsp b/xs/xsp/Print.xsp
index e3e1704fe..d29e087c0 100644
--- a/xs/xsp/Print.xsp
+++ b/xs/xsp/Print.xsp
@@ -171,6 +171,7 @@ _constant()
     void set_gcode_preview_extrusion_flags(unsigned int flags);
     void set_gcode_preview_travel_visible(bool visible);
     void set_gcode_preview_retractions_visible(bool visible);
+    void set_gcode_preview_unretractions_visible(bool visible);
 // ===================== ENRICO_GCODE_PREVIEW ==================================================
         
     PrintRegionPtrs* regions()