diff --git a/src/common/utilities/eigen_mesh_conversions.cpp b/src/common/utilities/eigen_mesh_conversions.cpp
index 3b894d8fc..3cb4250c6 100644
--- a/src/common/utilities/eigen_mesh_conversions.cpp
+++ b/src/common/utilities/eigen_mesh_conversions.cpp
@@ -529,6 +529,33 @@ EigenMatrixX3m meshlab::vertexMatrix(const CMeshO& mesh)
 	return vert;
 }
 
+/**
+ * @brief Get a #V*3 Eigen matrix of scalars containing the coordinates of the
+ * vertices of a CMeshO, to which has been applied the transform matrix of the mesh.
+ * The vertices in the mesh must be compact (no deleted vertices).
+ * If the mesh is not compact, a vcg::MissingCompactnessException will be thrown.
+ *
+ * @param mesh: input mesh
+ * @return #V*3 matrix of scalars (transformed vertex coordinates)
+ */
+EigenMatrixX3m meshlab::transformedVertexMatrix(const CMeshO &mesh)
+{
+	vcg::tri::RequireVertexCompactness(mesh);
+
+	   // create eigen matrix of vertices
+	EigenMatrixX3m vert(mesh.VN(), 3);
+
+	   // copy vertices
+	for (int i = 0; i < mesh.VN(); i++) {
+		CMeshO::CoordType p = mesh.Tr * mesh.vert[i].P();
+		for (int j = 0; j < 3; j++) {
+			vert(i, j) = p[j];
+		}
+	}
+
+	return vert;
+}
+
 /**
  * @brief Get a #F*3 Eigen matrix of integers containing the vertex indices of
  * a CMeshO.
@@ -635,6 +662,42 @@ EigenMatrixX3m meshlab::vertexNormalMatrix(const CMeshO& mesh)
 	return vertexNormals;
 }
 
+/**
+ * @brief Get a #V*3 Eigen matrix of scalars containing the values of the
+ * vertex normals of a CMeshO, to which has been applied the transform matrix of the mesh.
+ * The vertices in the mesh must be compact (no deleted vertices).
+ * If the mesh is not compact, a vcg::MissingCompactnessException will be thrown.
+ *
+ * @param mesh: input mesh
+ * @return #V*3 matrix of scalars (transformed vertex normals)
+ */
+EigenMatrixX3m meshlab::transformedVertexNormalMatrix(const CMeshO &mesh)
+{
+	vcg::tri::RequireVertexCompactness(mesh);
+
+	CMeshO::ScalarType scale;
+
+	vcg::Matrix33<CMeshO::ScalarType> mat33(mesh.Tr,3);
+	scale = pow(mat33.Determinant(),(CMeshO::ScalarType)(1.0/3.0));
+	CMeshO::CoordType scaleV(scale,scale,scale);
+	vcg::Matrix33<CMeshO::ScalarType> S;
+	S.SetDiagonal(scaleV.V());
+	mat33*=S;
+
+	// create eigen matrix of vertex normals
+	EigenMatrixX3m vertexNormals(mesh.VN(), 3);
+
+	// per vertices normals
+	for (int i = 0; i < mesh.VN(); i++) {
+		CMeshO::CoordType n = mat33 * mesh.vert[i].N();
+		for (int j = 0; j < 3; j++) {
+			vertexNormals(i, j) = n[j];
+		}
+	}
+
+	return vertexNormals;
+}
+
 /**
  * @brief Get a #F*3 Eigen matrix of scalars containing the values of the
  * face normals of a CMeshO.
@@ -648,6 +711,42 @@ EigenMatrixX3m meshlab::faceNormalMatrix(const CMeshO& mesh)
 {
 	vcg::tri::RequireFaceCompactness(mesh);
 
+	CMeshO::ScalarType scale;
+
+	vcg::Matrix33<CMeshO::ScalarType> mat33(mesh.Tr,3);
+	scale = pow(mat33.Determinant(),(CMeshO::ScalarType)(1.0/3.0));
+	CMeshO::CoordType scaleV(scale,scale,scale);
+	vcg::Matrix33<CMeshO::ScalarType> S;
+	S.SetDiagonal(scaleV.V());
+	mat33*=S;
+
+	// create eigen matrix of face normals
+	EigenMatrixX3m faceNormals(mesh.FN(), 3);
+
+	// per face normals
+	for (int i = 0; i < mesh.FN(); i++) {
+		CMeshO::CoordType n = mat33 * mesh.face[i].N();
+		for (int j = 0; j < 3; j++) {
+			faceNormals(i, j) = n[j];
+		}
+	}
+
+	return faceNormals;
+}
+
+/**
+ * @brief Get a #F*3 Eigen matrix of scalars containing the values of the
+ * face normals of a CMeshO, to which has been applied the transform matrix of the mesh.
+ * The faces in the mesh must be compact (no deleted faces).
+ * If the mesh is not compact, a vcg::MissingCompactnessException will be thrown.
+ *
+ * @param mesh: input mesh
+ * @return #F*3 matrix of scalars (transformed face normals)
+ */
+EigenMatrixX3m meshlab::transformedFaceNormalMatrix(const CMeshO &mesh)
+{
+	vcg::tri::RequireFaceCompactness(mesh);
+
 	// create eigen matrix of face normals
 	EigenMatrixX3m faceNormals(mesh.FN(), 3);
 
@@ -661,6 +760,7 @@ EigenMatrixX3m meshlab::faceNormalMatrix(const CMeshO& mesh)
 	return faceNormals;
 }
 
+
 /**
  * @brief Get a #V*4 Eigen matrix of scalars containing the values of the
  * vertex colors of a CMeshO, each value in an interval [0, 1].
diff --git a/src/common/utilities/eigen_mesh_conversions.h b/src/common/utilities/eigen_mesh_conversions.h
index 4ad5a0e06..079f07765 100644
--- a/src/common/utilities/eigen_mesh_conversions.h
+++ b/src/common/utilities/eigen_mesh_conversions.h
@@ -84,11 +84,14 @@ void addFaceVectorAttribute(
 
 // From CMeshO to Eigen
 EigenMatrixX3m            vertexMatrix(const CMeshO& mesh);
+EigenMatrixX3m            transformedVertexMatrix(const CMeshO& mesh);
 Eigen::MatrixX3i          faceMatrix(const CMeshO& mesh);
 Eigen::MatrixX2i          edgeMatrix(const CMeshO& mesh);
 std::list<EigenVectorXui> polygonalFaceList(const CMeshO& mesh);
 EigenMatrixX3m            vertexNormalMatrix(const CMeshO& mesh);
+EigenMatrixX3m            transformedVertexNormalMatrix(const CMeshO& mesh);
 EigenMatrixX3m            faceNormalMatrix(const CMeshO& mesh);
+EigenMatrixX3m            transformedFaceNormalMatrix(const CMeshO& mesh);
 EigenMatrixX4m            vertexColorMatrix(const CMeshO& mesh);
 EigenMatrixX4m            faceColorMatrix(const CMeshO& mesh);
 EigenVectorXui            vertexColorArray(const CMeshO& mesh);
diff --git a/src/meshlabplugins/render_gdp/meshrender.cpp b/src/meshlabplugins/render_gdp/meshrender.cpp
index 68664acef..bf5dfd73e 100644
--- a/src/meshlabplugins/render_gdp/meshrender.cpp
+++ b/src/meshlabplugins/render_gdp/meshrender.cpp
@@ -67,7 +67,10 @@ void MeshShaderRenderPlugin::initActionList()
 {
 	QDir shadersDir = QDir(meshlab::defaultShadersPath());
 
-	qDebug("Shader directory found '%s', and it contains %i gdp files", qUtf8Printable(shadersDir.path()), shadersDir.entryList(QStringList("*.gdp")).size());
+	// qDebug(
+	// 	"Shader directory found '%s', and it contains %i gdp files",
+	// 	qUtf8Printable(shadersDir.path()),
+	// 	shadersDir.entryList(QStringList("*.gdp")).size());
 	loadShaders(shadersDir);
 	
 	loadShaders(MeshLabApplication::extraShadersLocation());
diff --git a/src/vcglib b/src/vcglib
index 5cdefce22..0a9c6735e 160000
--- a/src/vcglib
+++ b/src/vcglib
@@ -1 +1 @@
-Subproject commit 5cdefce22e377369d7c8eede0c78a6fb224b81de
+Subproject commit 0a9c6735e8f79eb876e4d4e98f0b885de58adb51