diff --git a/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/Bundle.properties b/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/Bundle.properties
index 95dc6d25b..64ee8e3bf 100644
--- a/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/Bundle.properties
+++ b/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/Bundle.properties
@@ -57,7 +57,7 @@ TerrainEditorTopComponent.lowerTerrainButton.toolTipText=Lower terrain
 TerrainEditorTopComponent.lowerTerrainButton.actionCommand=Lower
 TerrainEditorTopComponent.smoothTerrainButton.toolTipText=Smooth terrain
 TerrainEditorTopComponent.smoothTerrainButton.actionCommand=Smooth
-TerrainEditorTopComponent.roughTerrainButton.toolTipText=Rough terrain
+TerrainEditorTopComponent.roughTerrainButton.toolTipText=Rough terrain (not implemented)
 TerrainEditorTopComponent.roughTerrainButton.actionCommand=Rough
 TerrainEditorTopComponent.createTerrainButton.toolTipText=Add Terrain
 TerrainEditorTopComponent.genEntropiesButton.toolTipText=Pre-calculate the terrain entropy values. This will improve launch startup time
@@ -104,3 +104,4 @@ TerrainEditorTopComponent.toolHint.none=
 TerrainEditorTopComponent.toolHint.default=Switch between camera and tool controls by holding down SHIFT
 TerrainEditorTopComponent.toolHint.smooth=
 TerrainEditorTopComponent.toolHint.level=Right click to set desired height value, left click to adjust height to that desired value.
+TerrainEditorTopComponent.levelTerrainButton.toolTipText=Level terrain
diff --git a/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainEditorController.java b/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainEditorController.java
index c1aa98dbd..33fca28f5 100644
--- a/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainEditorController.java
+++ b/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainEditorController.java
@@ -1294,7 +1294,74 @@ public class TerrainEditorController {
      * @param heightToolRadius
      * @param smoothAmount
      */
-    protected void doSmoothTerrain(Vector3f markerLocation, float heightToolRadius, float smoothAmount) {
+    protected void doSmoothTerrain(Vector3f worldLoc, float radius, float weight) {
+        Terrain terrain = (Terrain) getTerrain(null);
+        if (terrain == null)
+            return;
+
+        setNeedsSave(true);
+
+        int radiusStepsX = (int)(radius / ((Node)terrain).getLocalScale().x);
+        int radiusStepsZ = (int)(radius / ((Node)terrain).getLocalScale().z);
+
+        float xStepAmount = ((Node)terrain).getLocalScale().x;
+        float zStepAmount = ((Node)terrain).getLocalScale().z;
+
+        List<Vector2f> locs = new ArrayList<Vector2f>();
+        List<Float> heights = new ArrayList<Float>();
+
+        for (int z=-radiusStepsZ; z<radiusStepsZ; z++) {
+            for (int x=-radiusStepsZ; x<radiusStepsX; x++) {
+
+                float locX = worldLoc.x + (x*xStepAmount);
+                float locZ = worldLoc.z + (z*zStepAmount);
+
+                // see if it is in the radius of the tool
+                if (isInRadius(locX-worldLoc.x,locZ-worldLoc.z,radius)) {
+
+                    Vector2f terrainLoc = new Vector2f(locX, locZ);
+                    // adjust height based on radius of the tool
+                    float center = terrain.getHeightmapHeight(terrainLoc);
+                    float left = terrain.getHeightmapHeight(new Vector2f(terrainLoc.x-1, terrainLoc.y));
+                    float right = terrain.getHeightmapHeight(new Vector2f(terrainLoc.x+1, terrainLoc.y));
+                    float up = terrain.getHeightmapHeight(new Vector2f(terrainLoc.x, terrainLoc.y+1));
+                    float down = terrain.getHeightmapHeight(new Vector2f(terrainLoc.x, terrainLoc.y-1));
+                    int count = 1;
+                    float amount = center;
+                    if (left != Float.NaN) {
+                        amount += left;
+                        count++;
+                    }
+                    if (right != Float.NaN) {
+                        amount += right;
+                        count++;
+                    }
+                    if (up != Float.NaN) {
+                        amount += up;
+                        count++;
+                    }
+                    if (down != Float.NaN) {
+                        amount += down;
+                        count++;
+                    }
+
+                    amount /= count; // take average
+
+                    // weigh it
+                    float diff = amount-center;
+                    diff *= weight;
+                    amount = center+diff;
+                        
+                    locs.add(terrainLoc);
+                    heights.add(amount);
+                }
+            }
+        }
+
+        // do the actual height adjustment
+        terrain.setHeight(locs, heights);
+
+        ((Node)terrain).updateModelBound(); // or else we won't collide with it where we just edited
 
     }
 
diff --git a/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainEditorTopComponent.form b/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainEditorTopComponent.form
index 4d081aef3..5eb9a6582 100644
--- a/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainEditorTopComponent.form
+++ b/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainEditorTopComponent.form
@@ -513,8 +513,10 @@
                 <Property name="actionCommand" type="java.lang.String" editor="org.netbeans.modules.i18n.form.FormI18nStringEditor">
                   <ResourceString bundle="com/jme3/gde/terraineditor/Bundle.properties" key="TerrainEditorTopComponent.smoothTerrainButton.actionCommand" replaceFormat="org.openide.util.NbBundle.getMessage({sourceFileName}.class, &quot;{key}&quot;)"/>
                 </Property>
-                <Property name="enabled" type="boolean" value="false"/>
               </Properties>
+              <Events>
+                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="smoothTerrainButtonActionPerformed"/>
+              </Events>
             </Component>
             <Component class="javax.swing.JToggleButton" name="roughTerrainButton">
               <Properties>
diff --git a/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainEditorTopComponent.java b/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainEditorTopComponent.java
index c309651c1..77339598e 100644
--- a/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainEditorTopComponent.java
+++ b/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainEditorTopComponent.java
@@ -470,7 +470,11 @@ public final class TerrainEditorTopComponent extends TopComponent implements Sce
         org.openide.awt.Mnemonics.setLocalizedText(smoothTerrainButton, org.openide.util.NbBundle.getMessage(TerrainEditorTopComponent.class, "TerrainEditorTopComponent.smoothTerrainButton.text")); // NOI18N
         smoothTerrainButton.setToolTipText(org.openide.util.NbBundle.getMessage(TerrainEditorTopComponent.class, "TerrainEditorTopComponent.smoothTerrainButton.toolTipText")); // NOI18N
         smoothTerrainButton.setActionCommand(org.openide.util.NbBundle.getMessage(TerrainEditorTopComponent.class, "TerrainEditorTopComponent.smoothTerrainButton.actionCommand")); // NOI18N
-        smoothTerrainButton.setEnabled(false);
+        smoothTerrainButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                smoothTerrainButtonActionPerformed(evt);
+            }
+        });
         jToolBar1.add(smoothTerrainButton);
 
         terrainModButtonGroup.add(roughTerrainButton);
@@ -674,6 +678,16 @@ public final class TerrainEditorTopComponent extends TopComponent implements Sce
             toolController.setHeightToolHeight(heightSlider.getValue()); // should always be values upto and over 100, because it will be divided by 100
     }//GEN-LAST:event_heightSliderStateChanged
 
+    private void smoothTerrainButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_smoothTerrainButtonActionPerformed
+        if (smoothTerrainButton.isSelected()) {
+            toolController.setTerrainEditButtonState(TerrainEditButton.smoothTerrain);
+            setHintText(TerrainEditButton.smoothTerrain);
+        } else {
+            toolController.setTerrainEditButtonState(TerrainEditButton.none);
+            setHintText(TerrainEditButton.none);
+        }
+    }//GEN-LAST:event_smoothTerrainButtonActionPerformed
+
     // Variables declaration - do not modify//GEN-BEGIN:variables
     private javax.swing.JButton addTextureButton;
     private javax.swing.JButton createTerrainButton;
diff --git a/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainToolController.java b/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainToolController.java
index f1e1d1bce..0ba31e33a 100644
--- a/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainToolController.java
+++ b/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainToolController.java
@@ -99,6 +99,7 @@ public class TerrainToolController extends SceneToolController {
     public void setHeightToolHeight(float heightToolHeight) {
         this.heightAmount = heightToolHeight/100f;
         this.levelAmount = heightToolHeight/200f;
+        this.smoothAmount = heightToolHeight/200f;
         this.paintAmount = heightToolHeight/200f;
     }