diff --git a/code/nel/tools/3d/object_viewer_qt/src/global_wind_dialog.cpp b/code/nel/tools/3d/object_viewer_qt/src/global_wind_dialog.cpp
index 764aa6329..844af65ab 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/global_wind_dialog.cpp
+++ b/code/nel/tools/3d/object_viewer_qt/src/global_wind_dialog.cpp
@@ -30,9 +30,9 @@ CGlobalWindDialog::CGlobalWindDialog(QWidget *parent)
     : QDockWidget(parent)
 {
 	_ui.setupUi(this);
-	
+
 	//_ui.directionWidget->setWrapper(&_DirectionWrapper);
-	
+
 	connect(_ui.horizontalSlider, SIGNAL(valueChanged(int)), this, SLOT(setWndPower(int)));
 	connect(this, SIGNAL(visibilityChanged(bool)), this, SLOT(updateWnd(bool)));
 }
@@ -50,7 +50,7 @@ void CGlobalWindDialog::setWndPower(int value)
 
 void CGlobalWindDialog::updateWnd(bool visible)
 {
-	if (!visible)
+	if (!visible || !Modules::objView().getScene())
 		return;
 
 	_ui.horizontalSlider->setValue(int(Modules::objView().getScene()->getGlobalWindPower() * _ui.horizontalSlider->maximum()));
diff --git a/code/nel/tools/3d/object_viewer_qt/src/object_viewer.cpp b/code/nel/tools/3d/object_viewer_qt/src/object_viewer.cpp
index db410ed43..cfd0022eb 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/object_viewer.cpp
+++ b/code/nel/tools/3d/object_viewer_qt/src/object_viewer.cpp
@@ -57,7 +57,7 @@ CObjectViewer::CObjectViewer()
 	_phi(0), _psi(0),_dist(20),
 	_CameraFocal(75),
 	_CurrentInstance(""),
-	_BloomEffect(false)
+	_BloomEffect(false), _Scene(0)
 {
 	
 }
diff --git a/code/nel/tools/3d/object_viewer_qt/src/sun_color_dialog.cpp b/code/nel/tools/3d/object_viewer_qt/src/sun_color_dialog.cpp
index c3637191e..bb189167b 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/sun_color_dialog.cpp
+++ b/code/nel/tools/3d/object_viewer_qt/src/sun_color_dialog.cpp
@@ -45,7 +45,7 @@ CSunColorDialog::~CSunColorDialog()
 
 void CSunColorDialog::updateSunColor(bool visible)
 {
-	if (!visible)
+	if (!visible || !Modules::objView().getScene())
 		return;
 
 	_ui.ambientWidget->setColor(Modules::objView().getScene()->getSunAmbient());