Comments

ApplicationLibCode/ProjectDataModel/Rim3dView.cpp

@@ -841,6 +841,8 @@ void Rim3dView::setupBeforeSave()
 {
     if ( m_viewer )
     {
+        // The update of these fields is also done in cameraPosition() and cameraPointOfInterest(). When the
+        // project is saved to file, these functions are not used, so we need to update the fields here.
         m_cameraPosition        = m_viewer->mainCamera()->viewMatrix();
         m_cameraPointOfInterest = m_viewer->pointOfInterest();
     }

ApplicationLibCode/ProjectDataModel/Rim3dView.h

@@ -333,7 +333,9 @@ class Rim3dView : public RimViewWindow, public RiuViewerToViewInterface, public
     caf::PdmField<bool>                    m_showZScaleLabel;
     caf::PdmPtrField<Rim3dView*>           m_comparisonView;
 
-    // Camera
+    // Camera position and point of interest. The member variables are mutable to allow for setting them from const methods.
+    // The camera position and point of interest can change rapidly as the user interacts with the 3D view. Only update the Pdm field values
+    // when the application requests the camera position or point of interest.
     mutable caf::PdmField<cvf::Mat4d>   m_cameraPosition;
     mutable caf::PdmField<cvf::Vec3d>   m_cameraPointOfInterest;
     caf::PdmProxyValueField<cvf::Vec3d> m_cameraPointOfInterestProxy;