Added TerrainNode::init() and s/getTreatBoundariesToValidDataAsDefaultValue flag.

src/osgTerrain/GeometryTechnique.cpp

@@ -138,6 +138,8 @@ void GeometryTechnique::init()
         numRows = elevationLayer->getNumRows();
     }
     
+    bool treatBoundariesToValidDataAsDefaultValue = _terrainNode->getTreatBoundariesToValidDataAsDefaultValue();
+    osg::notify(osg::NOTICE)<<"TreatBoundariesToValidDataAsDefaultValue="<<treatBoundariesToValidDataAsDefaultValue<<std::endl;
     
     unsigned int numVertices = numRows * numColumns;
 

src/osgTerrain/TerrainNode.cpp

@@ -17,7 +17,8 @@ using namespace osg;
 using namespace osgTerrain;
 
 TerrainNode::TerrainNode():
-    _requiresNormals(true)
+    _requiresNormals(true),
+    _treatBoundariesToValidDataAsDefaultValue(false)
 {
     setNumChildrenRequiringUpdateTraversal(1);
 }
@@ -26,7 +27,8 @@ TerrainNode::TerrainNode(const TerrainNode& terrain,const osg::CopyOp& copyop):
     Group(terrain,copyop),
     _elevationLayer(terrain._elevationLayer),
     _colorLayers(terrain._colorLayers),
-    _requiresNormals(terrain._requiresNormals)
+    _requiresNormals(terrain._requiresNormals),
+    _treatBoundariesToValidDataAsDefaultValue(terrain._treatBoundariesToValidDataAsDefaultValue)
 {
     setNumChildrenRequiringUpdateTraversal(getNumChildrenRequiringUpdateTraversal()+1);
     
@@ -49,6 +51,15 @@ void TerrainNode::traverse(osg::NodeVisitor& nv)
     }
 }
 
+void TerrainNode::init()
+{
+    if (_terrainTechnique.valid() && _terrainTechnique->isDirty())
+    {
+        _terrainTechnique->init();
+    }    
+}
+
+
 void TerrainNode::setTerrainTechnique(osgTerrain::TerrainTechnique* terrainTechnique)
 {
     if (_terrainTechnique == terrainTechnique) return;