Improved the mapping of update and cull traversal

src/osgTerrain/GeometryTechnique.cpp

@@ -531,18 +531,22 @@ void GeometryTechnique::init()
 }
 
 
-void GeometryTechnique::update(osgUtil::UpdateVisitor* nv)
+void GeometryTechnique::update(osgUtil::UpdateVisitor* uv)
 {
-    
+    if (_terrainNode) _terrainNode->osg::Group::traverse(*uv);
 }
 
 
-void GeometryTechnique::cull(osgUtil::CullVisitor* nv)
+void GeometryTechnique::cull(osgUtil::CullVisitor* cv)
 {
+#if 0
+    if (_terrainNode) _terrainNode->osg::Group::traverse(*cv);
+#else
     if (_transform.valid())
     {
-        _transform->accept(*nv);
+        _transform->accept(*cv);
     }
+#endif    
 }
 
 void GeometryTechnique::cleanSceneGraph()

src/osgTerrain/TerrainNode.cpp

@@ -99,6 +99,36 @@ void TerrainNode::setColorFilter(unsigned int i, Filter filter)
     _colorLayers[i].filter = filter;
 }
 
+void TerrainNode::addCompileGraphicsContext(osg::GraphicsContext* gc)
+{
+    for(CompileGraphicsContexts::iterator itr = _compileGraphicsContexts.begin();
+        itr != _compileGraphicsContexts.end();
+        ++itr)
+    {
+        if (*itr == gc)
+        {
+            return;
+        }
+    }
+    
+    _compileGraphicsContexts.push_back(gc);
+}
+
+void TerrainNode::removeCompileGraphicsContext(osg::GraphicsContext* gc)
+{
+    for(CompileGraphicsContexts::iterator itr = _compileGraphicsContexts.begin();
+        itr != _compileGraphicsContexts.end();
+        ++itr)
+    {
+        if (*itr == gc)
+        {
+            _compileGraphicsContexts.erase(itr);
+            return;
+        }
+    }
+}
+
+
 osg::BoundingSphere TerrainNode::computeBound() const
 {
     osg::BoundingSphere bs;

src/osgTerrain/TerrainTechnique.cpp

@@ -40,14 +40,16 @@ void TerrainTechnique::init()
     _dirty = false;
 }
 
-void TerrainTechnique::update(osgUtil::UpdateVisitor*)
+void TerrainTechnique::update(osgUtil::UpdateVisitor* uv)
 {
     osg::notify(osg::NOTICE)<<className()<<"::update(..) not implementated yet"<<std::endl;
+    if (_terrainNode) _terrainNode->osg::Group::traverse(*uv);
 }
 
-void TerrainTechnique::cull(osgUtil::CullVisitor*)
+void TerrainTechnique::cull(osgUtil::CullVisitor* cv)
 {
     osg::notify(osg::NOTICE)<<className()<<"::cull(..) not implementated yet"<<std::endl;
+    if (_terrainNode) _terrainNode->osg::Group::traverse(*cv);
 }
 
 void TerrainTechnique::cleanSceneGraph()