diff --git a/library/voxelman_library.cpp b/library/voxelman_library.cpp
index 2dda85c..e292a48 100644
--- a/library/voxelman_library.cpp
+++ b/library/voxelman_library.cpp
@@ -26,6 +26,13 @@ SOFTWARE.
 
 #include "core/version.h"
 
+bool VoxelmanLibrary::get_initialized() const {
+	return _initialized;
+}
+void VoxelmanLibrary::set_initialized(const bool value) {
+	_initialized = value;
+}
+
 //Materials
 Ref<Material> VoxelmanLibrary::get_material(const int index) {
 	ERR_FAIL_INDEX_V(index, _materials.size(), Ref<VoxelSurface>(NULL));
@@ -181,6 +188,7 @@ void VoxelmanLibrary::clear_props() {
 
 //Rects
 void VoxelmanLibrary::refresh_rects() {
+	_initialized = true;
 }
 
 void VoxelmanLibrary::setup_material_albedo(int material_index, Ref<Texture> texture) {
@@ -189,6 +197,7 @@ void VoxelmanLibrary::setup_material_albedo(int material_index, Ref<Texture> tex
 }
 
 VoxelmanLibrary::VoxelmanLibrary() {
+	_initialized = false;
 }
 
 VoxelmanLibrary::~VoxelmanLibrary() {
@@ -198,6 +207,10 @@ VoxelmanLibrary::~VoxelmanLibrary() {
 }
 
 void VoxelmanLibrary::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("get_initialized"), &VoxelmanLibrary::get_initialized);
+	ClassDB::bind_method(D_METHOD("set_initialized", "value"), &VoxelmanLibrary::set_initialized);
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "initialized"), "set_initialized", "get_initialized");
+
 	BIND_VMETHOD(MethodInfo("_setup_material_albedo", PropertyInfo(Variant::INT, "material_index"), PropertyInfo(Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture")));
 
 	ClassDB::bind_method(D_METHOD("get_material", "index"), &VoxelmanLibrary::get_material);
diff --git a/library/voxelman_library.h b/library/voxelman_library.h
index d9d3dbd..e63e4e1 100644
--- a/library/voxelman_library.h
+++ b/library/voxelman_library.h
@@ -43,6 +43,9 @@ public:
 	};
 
 public:
+	bool get_initialized() const;
+	void set_initialized(const bool value);
+
 	Ref<Material> get_material(const int index);
 	void add_material(const Ref<Material> &value);
 	void set_material(const int index, const Ref<Material> &value);
@@ -95,6 +98,7 @@ protected:
 	static void _bind_methods();
 
 private:
+	bool _initialized;
 	Vector<Ref<Material> > _materials;
 	Vector<Ref<Material> > _liquid_materials;
 	Vector<Ref<Material> > _clutter_materials;
diff --git a/library/voxelman_library_merger.cpp b/library/voxelman_library_merger.cpp
index 3f2be4d..b7fb2c1 100644
--- a/library/voxelman_library_merger.cpp
+++ b/library/voxelman_library_merger.cpp
@@ -333,6 +333,8 @@ void VoxelmanLibraryMerger::refresh_rects() {
 			surface->refresh_rects();
 		}
 	}
+
+	set_initialized(true);
 }
 
 void VoxelmanLibraryMerger::_setup_material_albedo(const int material_index, const Ref<Texture> &texture) {
diff --git a/library/voxelman_library_simple.cpp b/library/voxelman_library_simple.cpp
index 2c9d2c4..d307f54 100644
--- a/library/voxelman_library_simple.cpp
+++ b/library/voxelman_library_simple.cpp
@@ -113,6 +113,8 @@ void VoxelmanLibrarySimple::set_voxel_surfaces(const Vector<Variant> &surfaces)
 
 		_voxel_surfaces.push_back(surface);
 	}
+
+	set_initialized(true);
 }
 
 //Liquids
diff --git a/world/voxel_world_editor.cpp b/world/voxel_world_editor.cpp
index e4b17dd..a0a02ef 100644
--- a/world/voxel_world_editor.cpp
+++ b/world/voxel_world_editor.cpp
@@ -163,6 +163,9 @@ void VoxelWorldEditor::edit(VoxelWorld *p_world) {
 	if (!library.is_valid())
 		return;
 
+	if (!library->get_initialized())
+		library->refresh_rects();
+
 	bool f = false;
 	for (int i = 0; i < library->get_num_surfaces(); ++i) {
 		Ref<VoxelSurface> surface = library->get_voxel_surface(i);