diff --git a/include/osgTerrain/TerrainNode b/include/osgTerrain/TerrainNode
index 737cdccff..d7af7be57 100644
--- a/include/osgTerrain/TerrainNode
+++ b/include/osgTerrain/TerrainNode
@@ -19,11 +19,12 @@
 #include <osg/CoordinateSystemNode>
 
 #include <osgTerrain/TerrainTechnique>
+#include <osgTerrain/Layer>
 
 namespace osgTerrain {
 
 /** Terrain provides a framework for loosly coupling height field data with height rendering algorithms.
-  * This allows renderer's to be pluged in at runtime.*/
+  * This allows TerrainTechnique's to be pluged in at runtime.*/
 class OSGTERRAIN_EXPORT TerrainNode : public osg::Group
 {
     public:
@@ -38,62 +39,30 @@ class OSGTERRAIN_EXPORT TerrainNode : public osg::Group
         virtual void traverse(osg::NodeVisitor& nv);
 
 
-        /** Set the HeightField for this TerrainNode.
-          * If a Renderer is attached then this will be notified.*/
-        void setHeightField(osg::HeightField* heightField);
+        /** Set the TerrainTechnique*/
+        void setTerrainTechnique(osgTerrain::TerrainTechnique* TerrainTechnique);
 
-        /** Get the HeightField.*/
-        osg::HeightField* getHeightField() { return _heightField.get(); }
+        /** Get the TerrainTechnique*/
+        TerrainTechnique* getTerrainTechnique() { return _terrainTechnique.get(); }
         
-        /** Get the const HeightField.*/
-        const osg::HeightField* getHeightField() const { return _heightField.get(); }
-        
-        /** Tell the Renderer that the height field has been modified, so
-          * that any cached data will need updating*/
-        void heightFieldHasBeenModified();
-        
-        /** Set the Renderer*/
-        void setRenderer(osgTerrain::TerrainTechnique* renderer);
+        /** Get the const TerrainTechnique*/
+        const TerrainTechnique* getTerrainTechnique() const { return _terrainTechnique.get(); }
 
-        /** Get the Renderer*/
-        TerrainTechnique* getRenderer() { return _renderer.get(); }
-        
-        /** Get the const Renderer*/
-        const TerrainTechnique* getRenderer() const { return _renderer.get(); }
 
+        void setHeightLayer(osgTerrain::Layer* layer);
+        osgTerrain::Layer* getHeightLayer();
         
-        void setBaseTextureImage(osg::Image* image) { _baseTextureImage = image; }
-        osg::Image* getBaseTextureImage() { return _baseTextureImage.get(); }
-        const osg::Image* getBaseTextureImage() const { return _baseTextureImage.get(); }
-
-        void setDetailTextureImage(osg::Image* image) { _detailTextureImage = image; }
-        osg::Image* getDetailTextureImage() { return _detailTextureImage.get(); }
-        const osg::Image* getDetailTextureImage() const { return _detailTextureImage.get(); }
-
-        void setCloudShadowTextureImage(osg::Image* image) { _cloudShadowTextureImage = image; }
-        osg::Image* getCloudShadowTextureImage() { return _cloudShadowTextureImage.get(); }
-        const osg::Image* getCloudShadowTextureImage() const { return _cloudShadowTextureImage.get(); }
-
-        void setNormalMapImage(osg::Image* image) { _normalMapImage = image ; }
-        osg::Image* getNormalMapImage() { return _normalMapImage.get(); }
-        const osg::Image* getNormalMapImage() const { return _normalMapImage.get(); }
-        
-        void computeNormalMap();
-        
+        void addColorLayer(osgTerrain::Layer* layer);
+        void removeColorLayer(osgTerrain::Layer* layer);
 
     protected:
 
         virtual ~TerrainNode();
 
-
-        osg::ref_ptr<osg::HeightField>      _heightField;
-        osg::ref_ptr<TerrainTechnique>   _renderer;
         
-        osg::ref_ptr<osg::Image>            _baseTextureImage;
-        osg::ref_ptr<osg::Image>            _detailTextureImage;
-        osg::ref_ptr<osg::Image>            _cloudShadowTextureImage;
-        osg::ref_ptr<osg::Image>            _normalMapImage;
-
+        osg::ref_ptr<TerrainTechnique>   _terrainTechnique;
+        
+        osg::ref_ptr<Layer> _heightLayer;
 };
 
 }
diff --git a/src/osgTerrain/TerrainNode.cpp b/src/osgTerrain/TerrainNode.cpp
index a6ef46f88..f424d7b6d 100644
--- a/src/osgTerrain/TerrainNode.cpp
+++ b/src/osgTerrain/TerrainNode.cpp
@@ -23,10 +23,11 @@ TerrainNode::TerrainNode()
 
 TerrainNode::TerrainNode(const TerrainNode& terrain,const osg::CopyOp& copyop):
     Group(terrain,copyop),
-    _heightField(terrain._heightField)
+    _heightLayer(terrain._heightLayer)
 {
     setNumChildrenRequiringUpdateTraversal(getNumChildrenRequiringUpdateTraversal()+1);
-    if (terrain.getRenderer()) setRenderer(dynamic_cast<TerrainTechnique*>(terrain.getRenderer()->cloneType()));
+    
+    if (terrain.getTerrainTechnique()) setTerrainTechnique(dynamic_cast<TerrainTechnique*>(terrain.getTerrainTechnique()->cloneType()));
 }
 
 TerrainNode::~TerrainNode()
@@ -39,9 +40,9 @@ void TerrainNode::traverse(osg::NodeVisitor& nv)
     if (nv.getVisitorType()==osg::NodeVisitor::UPDATE_VISITOR)
     {
         osgUtil::UpdateVisitor* uv = dynamic_cast<osgUtil::UpdateVisitor*>(&nv);
-        if (getRenderer() && uv)
+        if (getTerrainTechnique() && uv)
         {
-            getRenderer()->update(uv);
+            getTerrainTechnique()->update(uv);
             return;
         }        
         
@@ -49,9 +50,9 @@ void TerrainNode::traverse(osg::NodeVisitor& nv)
     else if (nv.getVisitorType()==osg::NodeVisitor::CULL_VISITOR)
     {
         osgUtil::CullVisitor* cv = dynamic_cast<osgUtil::CullVisitor*>(&nv);
-        if (getRenderer() && cv)
+        if (getTerrainTechnique() && cv)
         {
-            getRenderer()->cull(cv);
+            getTerrainTechnique()->cull(cv);
             return;
         }
     }
@@ -60,50 +61,20 @@ void TerrainNode::traverse(osg::NodeVisitor& nv)
     Group::traverse(nv);
 }
 
-void TerrainNode::setHeightField(osg::HeightField* heightField)
+void TerrainNode::setHeightLayer(osgTerrain::Layer* layer)
 {
-    _heightField = heightField;
-    if (_renderer.valid()) _renderer->initialize();
+    _heightLayer = layer;
 }
 
-void TerrainNode::heightFieldHasBeenModified()
+osgTerrain::Layer* TerrainNode::getHeightLayer()
 {
-    if (_renderer.valid()) _renderer->heightFieldHasBeenModified();
+    return _heightLayer.get();
 }
 
-void TerrainNode::setRenderer(osgTerrain::TerrainTechnique* renderer)
+void TerrainNode::addColorLayer(osgTerrain::Layer* layer)
 {
-    // need to figure out how to ensure that only one renderer is
-    // used between terrain nodes... issue a warning?
-    _renderer = renderer;
-    
-    if (_renderer.valid())
-    {
-        _renderer->_terrainNode = this;
-        _renderer->initialize();
-    }
 }
 
-void TerrainNode::computeNormalMap()
+void TerrainNode::removeColorLayer(osgTerrain::Layer* layer)
 {
-    if (_heightField.valid())
-    {
-        osg::Image* image = new osg::Image;
-        image->allocateImage(_heightField->getNumColumns(),_heightField->getNumRows(),1,GL_RGB,GL_BYTE);
-
-        char* ptr = (char*) image->data();
-        for(unsigned int r=0;r<_heightField->getNumRows();++r)
-        {
-            for(unsigned int c=0;c<_heightField->getNumColumns();++c)
-            {
-                osg::Vec3 normal = _heightField->getNormal(c,r);
-                (*ptr++) = (char)((normal.x()+1.0)*0.5*255);
-                (*ptr++) = (char)((normal.y()+1.0)*0.5*255);
-                (*ptr++) = (char)((normal.z()+1.0)*0.5*255);
-            }
-        }
-        
-        setNormalMapImage(image);
-        
-    }
 }