diff --git a/qglengine/glscene.cpp b/qglengine/glscene.cpp
index 0c8425a..9f72dc2 100644
--- a/qglengine/glscene.cpp
+++ b/qglengine/glscene.cpp
@@ -184,8 +184,6 @@ void Scene::selectObject(ObjectBase * o, bool add_to_selection) {
 		else o->setSelected(!o->isSelected());
 		gatherSelection();
 	}
-	foreach (Mesh * m, geometries)
-		m->selected_changed = true;
 	emitSelectionChanged();
 }
 
@@ -197,8 +195,38 @@ void Scene::selectObjects(QList<ObjectBase *> ol, bool add_to_selection) {
 		o->setSelected(true);
 	}
 	gatherSelection();
-	foreach (Mesh * m, geometries)
-		m->selected_changed = true;
+	emitSelectionChanged();
+}
+
+
+void Scene::selectObjectsByMesh() {
+	QList<ObjectBase * > csl = selected_;
+	QSet<Mesh*> sml;
+	foreach (ObjectBase * o, csl)
+		if (o->mesh())
+			sml << o->mesh();
+	QList<ObjectBase * > ol = root_->children(true);
+	foreach (ObjectBase * o, ol) {
+		if (sml.contains(o->mesh()))
+			o->setSelected(true);
+	}
+	gatherSelection();
+	emitSelectionChanged();
+}
+
+
+void Scene::selectObjectsByMaterial() {
+	QList<ObjectBase * > csl = selected_;
+	QSet<Material*> sml;
+	foreach (ObjectBase * o, csl)
+		if (o->material())
+			sml << o->material();
+	QList<ObjectBase * > ol = root_->children(true);
+	foreach (ObjectBase * o, ol) {
+		if (sml.contains(o->material()))
+			o->setSelected(true);
+	}
+	gatherSelection();
 	emitSelectionChanged();
 }
 
diff --git a/qglengine/glscene.h b/qglengine/glscene.h
index df11031..8ab6589 100644
--- a/qglengine/glscene.h
+++ b/qglengine/glscene.h
@@ -72,6 +72,8 @@ public:
 	void setSelectionMode(SelectionMode mode) {sel_mode_ = mode;}
 	void selectObject(ObjectBase * o, bool add_to_selection = false);
 	void selectObjects(QList<ObjectBase * > ol, bool add_to_selection = false);
+	void selectObjectsByMesh();
+	void selectObjectsByMaterial();
 	void clearSelection();
 	QList<ObjectBase * > selectedObjects(bool top_only = false) const;
 	ObjectBase * selectedObject() const;
diff --git a/qglengine/qglview.h b/qglengine/qglview.h
index 514a914..bd34f8b 100644
--- a/qglengine/qglview.h
+++ b/qglengine/qglview.h
@@ -193,8 +193,6 @@ protected:
 	void keyReleaseEvent(QKeyEvent * e);
 	void focusOutEvent(QFocusEvent *);
 
-	void renderSelection();
-
 	void checkCaps();
 
 private:
diff --git a/qglengine/renderer_base.cpp b/qglengine/renderer_base.cpp
index 86aec0f..015c6a0 100644
--- a/qglengine/renderer_base.cpp
+++ b/qglengine/renderer_base.cpp
@@ -140,7 +140,7 @@ void RendererBase::reloadMaterials(Scene & scene) {
 			tex_layers[i][m->bitmap_path] = 0;
 	}
 	int layers_count = tex_layers[0].size() + tex_layers[1].size(), cl = -1;
-	uint cur_maps_hash = qHash(tex_layers[0].keys()) ^ qHash(tex_layers[1].keys());
+	uint cur_maps_hash = qHash(tex_layers[0].keys()) ^ (qHash(tex_layers[1].keys()) + 0xF00FF00F);
 	if (maps_hash != cur_maps_hash) {
 		maps_hash = cur_maps_hash;
 		textures_maps.resize(view, maps_size, layers_count);
diff --git a/qglengine/widgets/scene_tree.cpp b/qglengine/widgets/scene_tree.cpp
index f64790b..354b214 100644
--- a/qglengine/widgets/scene_tree.cpp
+++ b/qglengine/widgets/scene_tree.cpp
@@ -231,6 +231,8 @@ void SceneTree::checkButtons() {
 	ui->buttonRemove->setEnabled(has_1);
 	ui->buttonClone ->setEnabled(has_1);
 	ui->buttonSelectParent->setEnabled(has_1);
+	ui->buttonSelectByMesh->setEnabled(has_1);
+	ui->buttonSelectByMaterial->setEnabled(has_1);
 	ui->buttonGroup->setEnabled(has_m);
 }
 
@@ -350,6 +352,16 @@ void SceneTree::on_buttonSelectParent_clicked() {
 }
 
 
+void SceneTree::on_buttonSelectByMesh_clicked() {
+	view->scene()->selectObjectsByMesh();
+}
+
+
+void SceneTree::on_buttonSelectByMaterial_clicked() {
+	view->scene()->selectObjectsByMaterial();
+}
+
+
 void SceneTree::on_buttonGroup_clicked() {
 	if (!view) return;
 	QList<ObjectBase*> sol = view->scene()->selectedObjects(true);
diff --git a/qglengine/widgets/scene_tree.h b/qglengine/widgets/scene_tree.h
index 8c13215..78b08d9 100644
--- a/qglengine/widgets/scene_tree.h
+++ b/qglengine/widgets/scene_tree.h
@@ -64,6 +64,8 @@ private slots:
 	void on_buttonClone_clicked();
 	void on_buttonUpdate_clicked() {objectsTreeChanged();}
 	void on_buttonSelectParent_clicked();
+	void on_buttonSelectByMesh_clicked();
+	void on_buttonSelectByMaterial_clicked();
 	void on_buttonGroup_clicked();
 
 	void removeObjects();
diff --git a/qglengine/widgets/scene_tree.ui b/qglengine/widgets/scene_tree.ui
index be71efe..f742dc5 100644
--- a/qglengine/widgets/scene_tree.ui
+++ b/qglengine/widgets/scene_tree.ui
@@ -67,7 +67,7 @@
            <string>Delete selected</string>
           </property>
           <property name="icon">
-           <iconset resource="widgets.qrc">
+           <iconset resource="../../qad/utils/qad_utils.qrc">
             <normaloff>:/icons/edit-delete.png</normaloff>:/icons/edit-delete.png</iconset>
           </property>
          </widget>
@@ -97,7 +97,7 @@
            <string>Clone selected</string>
           </property>
           <property name="icon">
-           <iconset resource="widgets.qrc">
+           <iconset resource="../../qad/utils/qad_utils.qrc">
             <normaloff>:/icons/edit-copy.png</normaloff>:/icons/edit-copy.png</iconset>
           </property>
          </widget>
@@ -129,6 +129,34 @@
           </property>
          </widget>
         </item>
+        <item>
+         <widget class="QToolButton" name="buttonSelectByMesh">
+          <property name="enabled">
+           <bool>false</bool>
+          </property>
+          <property name="toolTip">
+           <string>Select by mesh</string>
+          </property>
+          <property name="icon">
+           <iconset resource="../qglview.qrc">
+            <normaloff>:/icons/type-geo.png</normaloff>:/icons/type-geo.png</iconset>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QToolButton" name="buttonSelectByMaterial">
+          <property name="enabled">
+           <bool>false</bool>
+          </property>
+          <property name="toolTip">
+           <string>Select by material</string>
+          </property>
+          <property name="icon">
+           <iconset resource="../../qad/blockview/qad_blockview.qrc">
+            <normaloff>:/icons/format-fill-color.png</normaloff>:/icons/format-fill-color.png</iconset>
+          </property>
+         </widget>
+        </item>
        </layout>
       </widget>
      </item>
@@ -320,7 +348,7 @@
            <string>Force update</string>
           </property>
           <property name="icon">
-           <iconset resource="../qglview.qrc">
+           <iconset resource="../../qcd_utils/pult/cdpult.qrc">
             <normaloff>:/icons/view-refresh.png</normaloff>:/icons/view-refresh.png</iconset>
           </property>
          </widget>
@@ -393,7 +421,9 @@
   </customwidget>
  </customwidgets>
  <resources>
-  <include location="widgets.qrc"/>
+  <include location="../../qad/utils/qad_utils.qrc"/>
+  <include location="../../qad/blockview/qad_blockview.qrc"/>
+  <include location="../../qcd_utils/pult/cdpult.qrc"/>
   <include location="../qglview.qrc"/>
  </resources>
  <connections>