diff --git a/src/editing/common/freeformhelper.cpp b/src/editing/common/freeformhelper.cpp
index 1edbacf..9ab7c67 100644
--- a/src/editing/common/freeformhelper.cpp
+++ b/src/editing/common/freeformhelper.cpp
@@ -3,6 +3,10 @@
 #include <QDialog>
 #include <QVariant>
 #include <cmath>
+#include "dialogrender.h"
+#include "dialogexplorer.h"
+#include "rendering/scenery.h"
+#include "rendering/renderer.h"
 
 Q_DECLARE_METATYPE(double*)
 
@@ -26,6 +30,7 @@ void FreeFormHelper::startManaging()
     connect(this, SIGNAL(needGlobalRefreshing()), _form_widget, SLOT(refreshFromFellowData()));
     connect(this, SIGNAL(needReverting()), _form_widget, SLOT(updateLocalDataFromScenery()));
     connect(this, SIGNAL(needCommitting()), _form_widget, SLOT(commitLocalDataToScenery()));
+    connect(this, SIGNAL(needAlterRenderer(Renderer*)), _form_widget, SLOT(alterRenderer(Renderer*)));
 
     emit needLocalRefreshing();
     emit needGlobalRefreshing();
@@ -50,6 +55,8 @@ void FreeFormHelper::addDoubleInputSlider(WidgetSliderDecimal* slider, double* v
 {
     if (slider && slider->inherits("WidgetSliderDecimal"))
     {
+        _inputs_decimal.append(slider);
+
         slider->setDecimalRange(min, max, small_step, large_step);
         slider->setDecimalValue(*value);
 
@@ -96,6 +103,36 @@ void FreeFormHelper::setRevertButton(QString widget_name)
     setRevertButton(_form_widget->findChild<QPushButton*>(widget_name));
 }
 
+void FreeFormHelper::setExploreButton(QPushButton* button)
+{
+    if (button && button->inherits("QPushButton"))
+    {
+        _button_explore = button;
+
+        connect(button, SIGNAL(clicked()), this, SLOT(processExploreClicked()));
+    }
+}
+
+void FreeFormHelper::setExploreButton(QString widget_name)
+{
+    setExploreButton(_form_widget->findChild<QPushButton*>(widget_name));
+}
+
+void FreeFormHelper::setRenderButton(QPushButton* button)
+{
+    if (button && button->inherits("QPushButton"))
+    {
+        _button_render = button;
+
+        connect(button, SIGNAL(clicked()), this, SLOT(processRenderClicked()));
+    }
+}
+
+void FreeFormHelper::setRenderButton(QString widget_name)
+{
+    setRenderButton(_form_widget->findChild<QPushButton*>(widget_name));
+}
+
 void FreeFormHelper::setLabelText(QLabel* label, QString text)
 {
     if (label && label->inherits("QLabel"))
@@ -141,6 +178,22 @@ void FreeFormHelper::processRevertClicked()
 {
     emit needReverting();
 
+    for (int i = 0; i < _previews.size(); i++)
+    {
+        _previews[i]->redraw();
+    }
+
+    for (int i = 0; i < _inputs_decimal.size(); i++)
+    {
+        WidgetSliderDecimal* slider = _inputs_decimal.at(i);
+        double* pointer = slider->property("data_pointer").value<double*>();
+
+        if (pointer)
+        {
+            slider->setDecimalValue(*pointer);
+        }
+    }
+
     _data_changed = false;
     if (_button_apply)
     {
@@ -151,11 +204,6 @@ void FreeFormHelper::processRevertClicked()
         _button_revert->setEnabled(false);
     }
 
-    for (int i = 0; i < _previews.size(); i++)
-    {
-        _previews[i]->redraw();
-    }
-
     emit needLocalRefreshing();
 }
 
@@ -174,6 +222,42 @@ void FreeFormHelper::processApplyClicked()
     }
 }
 
+void FreeFormHelper::processExploreClicked()
+{
+    Renderer* renderer;
+
+    renderer = sceneryCreateStandardRenderer();
+
+    emit needAlterRenderer(renderer);
+
+    CameraDefinition* camera = cameraCreateDefinition();
+    sceneryGetCamera(camera);
+
+    DialogExplorer* dialog = new DialogExplorer(_form_widget, camera, false, renderer);
+    dialog->exec();
+    delete dialog;
+
+    rendererDelete(renderer);
+    cameraDeleteDefinition(camera);
+}
+
+void FreeFormHelper::processRenderClicked()
+{
+    Renderer* renderer;
+
+    renderer = sceneryCreateStandardRenderer();
+
+    emit needAlterRenderer(renderer);
+
+    DialogRender* dialog = new DialogRender(_form_widget, renderer);
+    RenderParams params = {400, 300, 1, 3};
+    dialog->startRender(params);
+
+    delete dialog;
+
+    rendererDelete(renderer);
+}
+
 void FreeFormHelper::processDecimalChange(double value)
 {
     QObject* signal_sender = sender();
diff --git a/src/editing/common/freeformhelper.h b/src/editing/common/freeformhelper.h
index 22ea38a..c245fcb 100644
--- a/src/editing/common/freeformhelper.h
+++ b/src/editing/common/freeformhelper.h
@@ -47,11 +47,14 @@ signals:
     void needGlobalRefreshing();
     void needReverting();
     void needCommitting();
+    void needAlterRenderer(Renderer* renderer);
 
 public slots:
     void processDataChange();
     void processRevertClicked();
     void processApplyClicked();
+    void processExploreClicked();
+    void processRenderClicked();
     void processDecimalChange(double value);
 
 private:
@@ -60,6 +63,7 @@ private:
     bool _data_changed;
 
     QVector<BasePreview*> _previews;
+    QVector<WidgetSliderDecimal*> _inputs_decimal;
 
     QPushButton* _button_apply;
     QPushButton* _button_revert;
diff --git a/src/editing/dialogexplorer.cpp b/src/editing/dialogexplorer.cpp
index f636570..0e825f6 100644
--- a/src/editing/dialogexplorer.cpp
+++ b/src/editing/dialogexplorer.cpp
@@ -5,7 +5,7 @@
 #include <QVBoxLayout>
 #include <QLabel>
 
-DialogExplorer::DialogExplorer(QWidget* parent, CameraDefinition* camera, bool camera_validable) : QDialog(parent)
+DialogExplorer::DialogExplorer(QWidget* parent, CameraDefinition* camera, bool camera_validable, Renderer* renderer) : QDialog(parent)
 {
     QWidget* panel;
     QPushButton* button;
@@ -14,7 +14,7 @@ DialogExplorer::DialogExplorer(QWidget* parent, CameraDefinition* camera, bool c
     setWindowTitle(tr("Paysages 3D - Explore"));
     setLayout(new QHBoxLayout());
 
-    _wanderer = new WidgetExplorer(this, camera);
+    _wanderer = new WidgetExplorer(this, camera, renderer);
     layout()->addWidget(_wanderer);
 
     panel = new QWidget(this);
diff --git a/src/editing/dialogexplorer.h b/src/editing/dialogexplorer.h
index c55f564..7ad3836 100644
--- a/src/editing/dialogexplorer.h
+++ b/src/editing/dialogexplorer.h
@@ -9,7 +9,7 @@ class DialogExplorer : public QDialog
 {
     Q_OBJECT
 public:
-    explicit DialogExplorer(QWidget *parent, CameraDefinition* camera, bool camera_validable);
+    explicit DialogExplorer(QWidget *parent, CameraDefinition* camera, bool camera_validable=false, Renderer* renderer=0);
     ~DialogExplorer();
 
 protected slots:
diff --git a/src/editing/terrain/mainterrainform.cpp b/src/editing/terrain/mainterrainform.cpp
index 5061b89..fcb9c2f 100644
--- a/src/editing/terrain/mainterrainform.cpp
+++ b/src/editing/terrain/mainterrainform.cpp
@@ -26,6 +26,8 @@ MainTerrainForm::MainTerrainForm(QWidget *parent) :
 
     _form_helper->setApplyButton("button_apply");
     _form_helper->setRevertButton("button_revert");
+    _form_helper->setExploreButton("button_explore");
+    _form_helper->setRenderButton("button_render");
 
     connect(findChild<QPushButton*>("button_dialog_painting"), SIGNAL(clicked()), this, SLOT(buttonPaintingPressed()));
     connect(findChild<QPushButton*>("button_goto_textures"), SIGNAL(clicked()), this, SLOT(buttonTexturesPressed()));
@@ -70,6 +72,11 @@ void MainTerrainForm::commitLocalDataToScenery()
     scenerySetTerrain(_terrain);
 }
 
+void MainTerrainForm::alterRenderer(Renderer* renderer)
+{
+    TerrainRendererClass.bind(renderer, _terrain);
+}
+
 void MainTerrainForm::buttonPaintingPressed()
 {
     DialogTerrainPainting dialog(this, _terrain);
diff --git a/src/editing/terrain/mainterrainform.h b/src/editing/terrain/mainterrainform.h
index 2dc1774..712197a 100644
--- a/src/editing/terrain/mainterrainform.h
+++ b/src/editing/terrain/mainterrainform.h
@@ -24,6 +24,7 @@ public slots:
     void refreshFromFellowData();
     void updateLocalDataFromScenery();
     void commitLocalDataToScenery();
+    void alterRenderer(Renderer* renderer);
 
     void buttonPaintingPressed();
     void buttonTexturesPressed();
diff --git a/src/editing/terrain/mainterrainform.ui b/src/editing/terrain/mainterrainform.ui
index ceb7822..3e08c61 100644
--- a/src/editing/terrain/mainterrainform.ui
+++ b/src/editing/terrain/mainterrainform.ui
@@ -360,7 +360,7 @@
          </widget>
         </item>
         <item>
-         <widget class="QPushButton" name="pushButton_3">
+         <widget class="QPushButton" name="button_render">
           <property name="text">
            <string>Render preview</string>
           </property>
@@ -371,7 +371,7 @@
          </widget>
         </item>
         <item>
-         <widget class="QPushButton" name="pushButton_4">
+         <widget class="QPushButton" name="button_explore">
           <property name="text">
            <string>Explore in 3D</string>
           </property>
diff --git a/src/editing/widgetexplorer.cpp b/src/editing/widgetexplorer.cpp
index 41c8320..3f5f60a 100644
--- a/src/editing/widgetexplorer.cpp
+++ b/src/editing/widgetexplorer.cpp
@@ -66,7 +66,7 @@ static AtmosphereResult _applyAerialPerspective(Renderer*, Vector3, Color base)
     return result;
 }
 
-WidgetExplorer::WidgetExplorer(QWidget *parent, CameraDefinition* camera) :
+WidgetExplorer::WidgetExplorer(QWidget *parent, CameraDefinition* camera, Renderer* renderer) :
 QGLWidget(parent)
 {
     setMinimumSize(400, 300);
@@ -76,7 +76,16 @@ QGLWidget(parent)
     _base_camera = camera;
     cameraCopyDefinition(camera, _current_camera);
 
-    _renderer = sceneryCreateStandardRenderer();
+    if (renderer)
+    {
+        _renderer = renderer;
+        _renderer_created = false;
+    }
+    else
+    {
+        _renderer = sceneryCreateStandardRenderer();
+        _renderer_created = true;
+    }
     _renderer->render_quality = 3;
     _renderer->customData[2] = _base_camera;
     _renderer->getCameraLocation = _getCameraLocation;
@@ -102,8 +111,12 @@ WidgetExplorer::~WidgetExplorer()
     {
         delete _chunks[i];
     }
-    rendererDelete(_renderer);
     cameraDeleteDefinition(_current_camera);
+
+    if (_renderer_created)
+    {
+        rendererDelete(_renderer);
+    }
 }
 
 void WidgetExplorer::startRendering()
diff --git a/src/editing/widgetexplorer.h b/src/editing/widgetexplorer.h
index d60b806..2238932 100644
--- a/src/editing/widgetexplorer.h
+++ b/src/editing/widgetexplorer.h
@@ -10,7 +10,7 @@ class WidgetExplorer : public QGLWidget
 {
     Q_OBJECT
 public:
-    WidgetExplorer(QWidget* parent, CameraDefinition* camera);
+    WidgetExplorer(QWidget* parent, CameraDefinition* camera, Renderer* renderer=0);
     ~WidgetExplorer();
 
     void performChunksMaintenance();
@@ -38,6 +38,7 @@ private:
     CameraDefinition* _base_camera;
 
     Renderer* _renderer;
+    bool _renderer_created;
     bool _inited;
     bool _updated;