Update camera scaling based on anchor pos even if path is playing

Previously this was only done hwen the Orbitalnavigator controlled the camera

include/openspace/navigation/orbitalnavigator.h

@@ -61,6 +61,7 @@ public:
 
     void updateStatesFromInput(const InputState& inputState, double deltaTime);
     void updateCameraStateFromStates(double deltaTime);
+    void updateCameraScalingFromAnchor(double deltaTime);
     void resetVelocities();
 
     Camera* camera() const;

src/navigation/navigationhandler.cpp

@@ -180,6 +180,8 @@ void NavigationHandler::updateCamera(double deltaTime) {
             _orbitalNavigator.updateStatesFromInput(_inputState, deltaTime);
             _orbitalNavigator.updateCameraStateFromStates(deltaTime);
         }
+
+        _orbitalNavigator.updateCameraScalingFromAnchor(deltaTime);
     }
 
     // If session recording (playback mode) was started in the midst of a camera path,

src/navigation/orbitalnavigator.cpp

@@ -686,16 +686,24 @@ void OrbitalNavigator::updateCameraStateFromStates(double deltaTime) {
     // Update the camera state
     _camera->setPositionVec3(pose.position);
     _camera->setRotation(composeCameraRotation(camRot));
+}
 
+void OrbitalNavigator::updateCameraScalingFromAnchor(double deltaTime) {
     if (_useAdaptiveStereoscopicDepth) {
+        const glm::dvec3 anchorPos = _anchorNode->worldPosition();
+        const glm::dvec3 cameraPos = _camera->positionVec3();
+
+        SurfacePositionHandle posHandle =
+            calculateSurfacePositionHandle(*_anchorNode, cameraPos);
+
         double targetCameraToSurfaceDistance = glm::length(
-            cameraToSurfaceVector(pose.position, anchorPos, posHandle)
+            cameraToSurfaceVector(cameraPos, anchorPos, posHandle)
         );
 
         if (_aimNode) {
             targetCameraToSurfaceDistance = std::min(
                 targetCameraToSurfaceDistance,
-                glm::distance(pose.position, _aimNode->worldPosition())
+                glm::distance(cameraPos, _aimNode->worldPosition())
             );
         }