Multiple beds (part 3):

- reload preview when beds are switched
- only show one bed in preview
- move the preview so it ends up in the same place as in 3D scene
- move the camera when switching beds in Preview

src/libslic3r/MultipleBeds.cpp

@@ -8,6 +8,8 @@
 namespace Slic3r {
 
 MultipleBeds s_multiple_beds;
+bool s_reload_preview_after_switching_beds = false;
+
 
 
 Vec3d MultipleBeds::get_bed_translation(int id) const

src/libslic3r/MultipleBeds.hpp

@@ -12,6 +12,7 @@ namespace Slic3r {
 class Model;
 class BuildVolume;
 
+extern bool s_reload_preview_after_switching_beds;
 
 class MultipleBeds {
 public:

src/slic3r/GUI/3DBed.cpp

@@ -26,6 +26,8 @@
 #include <boost/filesystem/operations.hpp>
 #include <boost/log/trivial.hpp>
 
+#include <numeric>
+
 static const float GROUND_Z = -0.02f;
 static const Slic3r::ColorRGBA DEFAULT_MODEL_COLOR             = Slic3r::ColorRGBA::DARK_GRAY();
 static const Slic3r::ColorRGBA PICKING_MODEL_COLOR             = Slic3r::ColorRGBA::BLACK();
@@ -106,11 +108,24 @@ bool Bed3D::set_shape(const Pointfs& bed_shape, const double max_print_height, c
 
 void Bed3D::render(GLCanvas3D& canvas, const Transform3d& view_matrix, const Transform3d& projection_matrix, bool bottom, float scale_factor, bool show_texture)
 {
-    for (size_t i = 0; i < s_multiple_beds.get_number_of_beds() + int(s_multiple_beds.should_show_next_bed()); ++i) {
+    bool is_preview = wxGetApp().plater()->is_preview_shown();
+    int  bed_to_highlight = -1;
+
+    static std::vector<int> beds_to_render;
+    beds_to_render.clear();
+    if (is_preview)
+        beds_to_render.push_back(s_multiple_beds.get_active_bed());
+    else {
+        beds_to_render.resize(s_multiple_beds.get_number_of_beds() + int(s_multiple_beds.should_show_next_bed()));
+        std::iota(beds_to_render.begin(), beds_to_render.end(), 0);
+        if (s_multiple_beds.get_number_of_beds() != 1)
+            bed_to_highlight = s_multiple_beds.get_active_bed();
+    }
+
+    for (int i : beds_to_render) {
         Transform3d mat = view_matrix;
         mat.translate(s_multiple_beds.get_bed_translation(i));
-        bool is_active = (i == s_multiple_beds.get_active_bed() && s_multiple_beds.get_number_of_beds() != 1);
-        render_internal(canvas, mat, projection_matrix, bottom, scale_factor, show_texture, false, is_active);
+        render_internal(canvas, mat, projection_matrix, bottom, scale_factor, show_texture, false, i == bed_to_highlight);
     }
 }
 

src/slic3r/GUI/GCodeViewer.cpp

@@ -31,6 +31,8 @@
 #include "GUI_ObjectManipulation.hpp"
 #include "MsgDialog.hpp"
 
+#include "libslic3r/MultipleBeds.hpp"
+
 #if ENABLE_ACTUAL_SPEED_DEBUG
 #define IMGUI_DEFINE_MATH_OPERATORS
 #endif // ENABLE_ACTUAL_SPEED_DEBUG
@@ -86,7 +88,10 @@ void GCodeViewer::COG::render()
         const double inv_zoom = camera.get_inv_zoom();
         model_matrix = model_matrix * Geometry::scale_transform(inv_zoom);
     }
-    const Transform3d& view_matrix = camera.get_view_matrix();
+    
+    Transform3d view_matrix = camera.get_view_matrix();
+    view_matrix.translate(s_multiple_beds.get_bed_translation(s_multiple_beds.get_active_bed()));
+
     shader->set_uniform("view_model_matrix", view_matrix * model_matrix);
     shader->set_uniform("projection_matrix", camera.get_projection_matrix());
     const Matrix3d view_normal_matrix = view_matrix.matrix().block(0, 0, 3, 3) * model_matrix.matrix().block(0, 0, 3, 3).inverse().transpose();
@@ -233,7 +238,10 @@ void GCodeViewer::SequentialView::Marker::render()
     shader->start_using();
     shader->set_uniform("emission_factor", 0.0f);
     const Camera& camera = wxGetApp().plater()->get_camera();
-    const Transform3d& view_matrix = camera.get_view_matrix();
+    
+    Transform3d view_matrix = camera.get_view_matrix();
+    view_matrix.translate(s_multiple_beds.get_bed_translation(s_multiple_beds.get_active_bed()));
+
     float scale_factor = m_scale_factor;
     if (m_fixed_screen_size)
         scale_factor *= 10.0f * camera.get_inv_zoom();
@@ -1706,7 +1714,12 @@ void GCodeViewer::load_wipetower_shell(const Print& print)
 void GCodeViewer::render_toolpaths()
 {
     const Camera& camera = wxGetApp().plater()->get_camera();
-    const libvgcode::Mat4x4 converted_view_matrix = libvgcode::convert(static_cast<Matrix4f>(camera.get_view_matrix().matrix().cast<float>()));
+
+    Transform3d tr = camera.get_view_matrix();
+    tr.translate(s_multiple_beds.get_bed_translation(s_multiple_beds.get_active_bed()));
+    Matrix4f m = tr.matrix().cast<float>();
+
+    const libvgcode::Mat4x4 converted_view_matrix = libvgcode::convert(m);
     const libvgcode::Mat4x4 converted_projetion_matrix = libvgcode::convert(static_cast<Matrix4f>(camera.get_projection_matrix().matrix().cast<float>()));
 #if VGCODE_ENABLE_COG_AND_TOOL_MARKERS
     m_viewer.set_cog_marker_scale_factor(m_cog_marker_fixed_screen_size ? 10.0f * m_cog_marker_size * camera.get_inv_zoom() : m_cog_marker_size);
@@ -1896,7 +1909,11 @@ void GCodeViewer::render_shells()
     shader->start_using();
     shader->set_uniform("emission_factor", 0.1f);
     const Camera& camera = wxGetApp().plater()->get_camera();
-    m_shells.volumes.render(GLVolumeCollection::ERenderType::Transparent, true, camera.get_view_matrix(), camera.get_projection_matrix());
+
+    Transform3d tr = camera.get_view_matrix();
+    tr.translate(s_multiple_beds.get_bed_translation(s_multiple_beds.get_active_bed()));
+
+    m_shells.volumes.render(GLVolumeCollection::ERenderType::Transparent, true, tr, camera.get_projection_matrix());
     shader->set_uniform("emission_factor", 0.0f);
     shader->stop_using();
 }

src/slic3r/GUI/GLCanvas3D.cpp

@@ -1840,8 +1840,16 @@ void GLCanvas3D::render()
                 bool inactive = i != s_multiple_beds.get_active_bed();
                 if (inactive)
                     ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0., 0., 0., .5));
-                if (ImGui::Button((std::string("Bed number ") + std::to_string(i + 1)).c_str()))
+                if (ImGui::Button((std::string("Bed number ") + std::to_string(i + 1)).c_str())) {
+                    int old_bed = s_multiple_beds.get_active_bed();
                     s_multiple_beds.set_active_bed(i);
+                    if (wxGetApp().plater()->is_preview_shown()) {
+                        s_reload_preview_after_switching_beds = true;
+                        wxPostEvent(wxGetApp().plater(), SimpleEvent(EVT_GLVIEWTOOLBAR_PREVIEW));
+                        camera.translate_world(s_multiple_beds.get_bed_translation(i) - s_multiple_beds.get_bed_translation(old_bed));
+                    }
+                    wxGetApp().plater()->sidebar().update_sliced_info_sizer();
+                }
                 if (inactive)
                     ImGui::PopStyleColor();
             }

src/slic3r/GUI/Plater.cpp

@@ -2841,8 +2841,12 @@ void Plater::priv::set_current_panel(wxPanel* panel)
     bool force_render = (current_panel != nullptr);
 #endif // __WXMAC__
 
-    if (current_panel == panel)
+    if (current_panel == panel) {
+        if (! s_reload_preview_after_switching_beds)
             return;
+        else
+            s_reload_preview_after_switching_beds = false;
+    }
 
     wxPanel* old_panel = current_panel;
     current_panel = panel;