Customizable use of 6 dof camera

src/slic3r/GUI/AppConfig.cpp

@@ -87,6 +87,11 @@ void AppConfig::set_defaults()
     if (get("use_perspective_camera").empty())
         set("use_perspective_camera", "1");
 
+#if ENABLE_6DOF_CAMERA
+    if (get("use_free_camera").empty())
+        set("use_free_camera", "0");
+#endif // ENABLE_6DOF_CAMERA
+
     // Remove legacy window positions/sizes
     erase("", "main_frame_maximized");
     erase("", "main_frame_pos");

src/slic3r/GUI/Camera.cpp

@@ -6,6 +6,11 @@
 #endif // !ENABLE_THUMBNAIL_GENERATOR
 #include "GUI_App.hpp"
 #include "AppConfig.hpp"
+#if ENABLE_CAMERA_STATISTICS
+#if ENABLE_6DOF_CAMERA
+#include "Mouse3DController.hpp"
+#endif // ENABLE_6DOF_CAMERA
+#endif // ENABLE_CAMERA_STATISTICS
 
 #include <GL/glew.h>
 
@@ -373,6 +378,12 @@ void Camera::debug_render() const
     imgui.begin(std::string("Camera statistics"), ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse);
 
     std::string type = get_type_as_string();
+#if ENABLE_6DOF_CAMERA
+    if (wxGetApp().plater()->get_mouse3d_controller().is_running() || (wxGetApp().app_config->get("use_free_camera") == "1"))
+        type += "/free";
+    else
+        type += "/constrained";
+#endif // ENABLE_6DOF_CAMERA
     Vec3f position = get_position().cast<float>();
     Vec3f target = m_target.cast<float>();
     float distance = (float)get_distance();
@@ -420,7 +431,7 @@ void Camera::translate_world(const Vec3d& displacement)
     }
 }
 
-void Camera::rotate_on_sphere(double delta_azimut_rad, double delta_zenit_rad, bool apply_limit)
+void Camera::rotate_on_sphere(double delta_azimut_rad, double delta_zenit_rad)
 {
     Vec3d target = m_target;
     translate_world(-target);

src/slic3r/GUI/Camera.hpp

@@ -130,7 +130,7 @@ public:
 
     // rotate the camera on a sphere having center == m_target and radius == m_distance
     // using the given variations of spherical coordinates
-    void rotate_on_sphere(double delta_azimut_rad, double delta_zenit_rad, bool apply_limit);
+    void rotate_on_sphere(double delta_azimut_rad, double delta_zenit_rad);
 
     // rotate the camera around three axes parallel to the camera local axes and passing through m_target
     void rotate_local_around_target(const Vec3d& rotation_rad);

src/slic3r/GUI/GLCanvas3D.cpp

@@ -3290,9 +3290,12 @@ void GLCanvas3D::on_mouse(wxMouseEvent& evt)
             {
                 const Vec3d& orig = m_mouse.drag.start_position_3D;
 #if ENABLE_6DOF_CAMERA
-                m_camera.rotate_on_sphere(Geometry::deg2rad((pos(0) - orig(0))* (double)TRACKBALLSIZE),
-                    Geometry::deg2rad((pos(1) - orig(1))* (double)TRACKBALLSIZE),
-                    wxGetApp().preset_bundle->printers.get_edited_preset().printer_technology() != ptSLA);
+                double x = Geometry::deg2rad(pos(0) - orig(0)) * (double)TRACKBALLSIZE;
+                double y = Geometry::deg2rad(pos(1) - orig(1)) * (double)TRACKBALLSIZE;
+                if (wxGetApp().plater()->get_mouse3d_controller().is_running() || (wxGetApp().app_config->get("use_free_camera") == "1"))
+                    m_camera.rotate_local_around_target(Vec3d(y, x, 0.0));
+                else
+                    m_camera.rotate_on_sphere(x, y);
 #else
                 float sign = m_camera.inverted_phi ? -1.0f : 1.0f;
                 m_camera.phi += sign * ((float)pos(0) - (float)orig(0)) * TRACKBALLSIZE;

src/slic3r/GUI/Preferences.cpp

@@ -124,6 +124,15 @@ void PreferencesDialog::build()
     option = Option(def, "use_perspective_camera");
     m_optgroup->append_single_option_line(option);
 
+#if ENABLE_6DOF_CAMERA
+	def.label = L("Use free camera");
+	def.type = coBool;
+	def.tooltip = L("If enabled, use free camera. If not enabled, use constrained camera.");
+	def.set_default_value(new ConfigOptionBool(app_config->get("use_free_camera") == "1"));
+	option = Option(def, "use_free_camera");
+	m_optgroup->append_single_option_line(option);
+#endif // ENABLE_6DOF_CAMERA
+
 	def.label = L("Use custom size for toolbar icons");
 	def.type = coBool;
 	def.tooltip = L("If enabled, you can change size of toolbar icons manually.");