Recreate a special case for IntersectionVisitor on QuadTreeWorld

components/terrain/viewdata.cpp

@@ -143,7 +143,7 @@ ViewData *ViewDataMap::getViewData(osg::Object *viewer, const osg::Vec3f& viewPo
 
     if (!vd->suitableToUse(activeGrid) || (vd->getViewPoint()-viewPoint).length2() >= mReuseDistance*mReuseDistance || vd->getWorldUpdateRevision() < mWorldUpdateRevision)
     {
-        float shortestDist = mReuseDistance*mReuseDistance;
+        float shortestDist = viewer ? mReuseDistance*mReuseDistance : std::numeric_limits<float>::max();
         const ViewData* mostSuitableView = nullptr;
         for (const ViewData* other : mUsedViews)
         {
@@ -157,12 +157,12 @@ ViewData *ViewDataMap::getViewData(osg::Object *viewer, const osg::Vec3f& viewPo
                 }
             }
         }
-        if (mostSuitableView)
+        if (mostSuitableView && mostSuitableView != vd)
         {
             vd->copyFrom(*mostSuitableView);
             return vd;
         }
-        else
+        else if (!mostSuitableView)
         {
             vd->setViewPoint(viewPoint);
             needsUpdate = true;