diff --git a/src/editing/paysages-qt.pro b/src/editing/paysages-qt.pro
index 86093c6..1169b91 100644
--- a/src/editing/paysages-qt.pro
+++ b/src/editing/paysages-qt.pro
@@ -71,7 +71,8 @@ HEADERS += \
     common/widgetsliderdecimal.h \
     common/previewrenderer.h \
     terrain/widgetterrainbasenoisepreview.h \
-    common/mainwindow.h
+    common/mainwindow.h \
+    terrain/dialogbaseterrainnoise.h
 
 SOURCES += \
     terrain/widgetheightmap.cpp \
@@ -121,13 +122,15 @@ SOURCES += \
     common/widgetsliderdecimal.cpp \
     common/previewrenderer.cpp \
     terrain/widgetterrainbasenoisepreview.cpp \
-    common/mainwindow.cpp
+    common/mainwindow.cpp \
+    terrain/dialogbaseterrainnoise.cpp
 
 FORMS += \
     terrain/dialogterrainpainting.ui \
     common/widgetglobalformbuttons.ui \
     terrain/mainterrainform.ui \
-    common/mainwindow.ui
+    common/mainwindow.ui \
+    terrain/dialogbaseterrainnoise.ui
 
 RESOURCES += \
     ../../data/ui_pictures.qrc
diff --git a/src/editing/terrain/dialogbaseterrainnoise.cpp b/src/editing/terrain/dialogbaseterrainnoise.cpp
new file mode 100644
index 0000000..5b139c8
--- /dev/null
+++ b/src/editing/terrain/dialogbaseterrainnoise.cpp
@@ -0,0 +1,31 @@
+#include "dialogbaseterrainnoise.h"
+#include "ui_dialogbaseterrainnoise.h"
+
+DialogBaseTerrainNoise::DialogBaseTerrainNoise(QWidget *parent) :
+    QDialog(parent),
+    ui(new Ui::DialogBaseTerrainNoise)
+{
+    ui->setupUi(this);
+
+    _original = 0;
+    _modified = noiseCreateGenerator();
+}
+
+DialogBaseTerrainNoise::~DialogBaseTerrainNoise()
+{
+    delete ui;
+    noiseDeleteGenerator(_modified);
+}
+
+void DialogBaseTerrainNoise::setNoise(NoiseGenerator* noise)
+{
+    _original = noise;
+    noiseCopy(noise, _modified);
+}
+
+int DialogBaseTerrainNoise::editNoise(QWidget* parent, NoiseGenerator* noise)
+{
+    DialogBaseTerrainNoise dialog(parent);
+    dialog.setNoise(noise);
+    return dialog.exec();
+}
diff --git a/src/editing/terrain/dialogbaseterrainnoise.h b/src/editing/terrain/dialogbaseterrainnoise.h
new file mode 100644
index 0000000..a38292c
--- /dev/null
+++ b/src/editing/terrain/dialogbaseterrainnoise.h
@@ -0,0 +1,29 @@
+#ifndef DIALOGBASETERRAINNOISE_H
+#define DIALOGBASETERRAINNOISE_H
+
+#include <QDialog>
+#include "rendering/noise.h"
+
+namespace Ui {
+class DialogBaseTerrainNoise;
+}
+
+class DialogBaseTerrainNoise : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit DialogBaseTerrainNoise(QWidget *parent = 0);
+    ~DialogBaseTerrainNoise();
+
+    void setNoise(NoiseGenerator* noise);
+
+    static int editNoise(QWidget* parent, NoiseGenerator* noise);
+
+private:
+    Ui::DialogBaseTerrainNoise *ui;
+    NoiseGenerator* _original;
+    NoiseGenerator* _modified;
+};
+
+#endif // DIALOGBASETERRAINNOISE_H
diff --git a/src/editing/terrain/dialogbaseterrainnoise.ui b/src/editing/terrain/dialogbaseterrainnoise.ui
new file mode 100644
index 0000000..57b1add
--- /dev/null
+++ b/src/editing/terrain/dialogbaseterrainnoise.ui
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>DialogBaseTerrainNoise</class>
+ <widget class="QDialog" name="DialogBaseTerrainNoise">
+  <property name="windowModality">
+   <enum>Qt::ApplicationModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Paysages 3D - Base terrain noise</string>
+  </property>
+  <property name="modal">
+   <bool>true</bool>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout">
+   <item>
+    <widget class="WidgetGlobalFormButtons" name="widget" native="true"/>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>WidgetGlobalFormButtons</class>
+   <extends>QWidget</extends>
+   <header>common/widgetglobalformbuttons.h</header>
+   <container>1</container>
+   <slots>
+    <signal>okClicked()</signal>
+    <signal>revertClicked()</signal>
+    <signal>cancelClicked()</signal>
+   </slots>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/editing/terrain/mainterrainform.cpp b/src/editing/terrain/mainterrainform.cpp
index c383327..0c659ed 100644
--- a/src/editing/terrain/mainterrainform.cpp
+++ b/src/editing/terrain/mainterrainform.cpp
@@ -1,6 +1,8 @@
 #include "mainterrainform.h"
 #include "ui_mainterrainform.h"
 
+#include <QMessageBox>
+#include "dialogbaseterrainnoise.h"
 #include "dialogterrainpainting.h"
 #include "previewterrainshape.h"
 #include "tools.h"
@@ -29,6 +31,7 @@ MainTerrainForm::MainTerrainForm(QWidget *parent) :
     _form_helper->setExploreButton(ui->button_explore);
     _form_helper->setRenderButton(ui->button_render);
 
+    connect(ui->button_dialog_basenoise, SIGNAL(clicked()), this, SLOT(buttonBaseNoisePressed()));
     connect(ui->button_dialog_painting, SIGNAL(clicked()), this, SLOT(buttonPaintingPressed()));
     connect(ui->button_goto_textures, SIGNAL(clicked()), this, SLOT(buttonTexturesPressed()));
 
@@ -79,6 +82,27 @@ void MainTerrainForm::alterRenderer(Renderer* renderer)
     TerrainRendererClass.bind(renderer, _terrain);
 }
 
+void MainTerrainForm::buttonBaseNoisePressed()
+{
+    int erase;
+    if (terrainGetMemoryStats(_terrain) > 0)
+    {
+        erase = QMessageBox::question(this, tr("Paysages 3D - Base noise edition"), tr("You have manual modifications on this terrain, regenerating base noise may produce weird results."), tr("Keep my changes anyway"), tr("Erase my changes"));
+    }
+    else
+    {
+        erase = 0;
+    }
+
+    if (DialogBaseTerrainNoise::editNoise(this, _terrain->_height_noise))
+    {
+        if (erase)
+        {
+            terrainClearPainting(_terrain->height_map);
+        }
+    }
+}
+
 void MainTerrainForm::buttonPaintingPressed()
 {
     DialogTerrainPainting dialog(this, _terrain);
diff --git a/src/editing/terrain/mainterrainform.h b/src/editing/terrain/mainterrainform.h
index 712197a..5cf5bb9 100644
--- a/src/editing/terrain/mainterrainform.h
+++ b/src/editing/terrain/mainterrainform.h
@@ -26,6 +26,7 @@ public slots:
     void commitLocalDataToScenery();
     void alterRenderer(Renderer* renderer);
 
+    void buttonBaseNoisePressed();
     void buttonPaintingPressed();
     void buttonTexturesPressed();
 
diff --git a/src/editing/terrain/mainterrainform.ui b/src/editing/terrain/mainterrainform.ui
index 12fbb1b..dac4f2f 100644
--- a/src/editing/terrain/mainterrainform.ui
+++ b/src/editing/terrain/mainterrainform.ui
@@ -44,7 +44,7 @@
         <item>
          <layout class="QHBoxLayout" name="horizontalLayout_4">
           <item>
-           <widget class="QPushButton" name="pushButton">
+           <widget class="QPushButton" name="button_dialog_basenoise">
             <property name="text">
              <string>Generate base noise</string>
             </property>
diff --git a/src/rendering/terrain/public.h b/src/rendering/terrain/public.h
index ca83821..905e626 100644
--- a/src/rendering/terrain/public.h
+++ b/src/rendering/terrain/public.h
@@ -81,6 +81,7 @@ typedef struct
 
 /* Heightmap manipulation */
 int terrainIsPainted(TerrainHeightMap* heightmap, int x, int z);
+void terrainClearPainting(TerrainHeightMap* heightmap);
 void terrainBrushElevation(TerrainHeightMap* heightmap, TerrainBrush* brush, double value);
 void terrainBrushSmooth(TerrainHeightMap* heightmap, TerrainBrush* brush, double value);
 void terrainBrushAddNoise(TerrainHeightMap* heightmap, TerrainBrush* brush, NoiseGenerator* generator, double value);
diff --git a/src/rendering/terrain/ter_painting.c b/src/rendering/terrain/ter_painting.c
index 3d60890..b94ab59 100644
--- a/src/rendering/terrain/ter_painting.c
+++ b/src/rendering/terrain/ter_painting.c
@@ -454,6 +454,12 @@ int terrainIsPainted(TerrainHeightMap* heightmap, int x, int z)
     return _getDataPointer(&heightmap->brush_data, x, z, NULL, NULL, 0) || _getDataPointer(&heightmap->merged_data, x, z, NULL, NULL, 0);
 }
 
+void terrainClearPainting(TerrainHeightMap* heightmap)
+{
+    _clearData(&heightmap->merged_data);
+    _clearData(&heightmap->brush_data);
+}
+
 typedef double (*BrushCallback)(TerrainHeightMap* heightmap, TerrainBrush* brush, double x, double z, double basevalue, double influence, double force, void* data);
 
 static inline void _applyBrush(TerrainHeightMap* heightmap, TerrainBrush* brush, double force, void* data, BrushCallback callback)