diff --git a/wrap/gl/gl_field.h b/wrap/gl/gl_field.h
index 733f2d60..a5fad6e9 100644
--- a/wrap/gl/gl_field.h
+++ b/wrap/gl/gl_field.h
@@ -5,16 +5,11 @@ class GLField
 	typedef typename MeshType::FaceType FaceType;
 	typedef typename MeshType::VertexType VertexType;
 	typedef typename MeshType::ScalarType ScalarType;
-
-	///draw the cross field of a given face
-	static void GLDrawField(MeshType &mesh,
-							const FaceType &f,
+	
+	static void GLDrawField(CoordType dir[4],
+							CoordType center,
 							ScalarType &size)
 	{
-		CoordType center=(f.P0(0)+f.P0(1)+f.P0(2))/3;
-		CoordType normal=f.cN();
-		CoordType dir[4];
-		vcg::tri::CrossField<MeshType>::CrossVector(f,dir);
 		glLineWidth(1);
 		vcg::Color4b c;
 		vcg::glColor(vcg::Color4b(0,0,0,255));
@@ -28,6 +23,28 @@ class GLField
 		glEnd();
 	}
 
+	///draw the cross field of a given face
+	static void GLDrawFaceField(const MeshType &mesh,
+							const FaceType &f,
+							ScalarType &size)
+	{
+		CoordType center=(f.P0(0)+f.P0(1)+f.P0(2))/3;
+		CoordType normal=f.cN();
+		CoordType dir[4];
+		vcg::tri::CrossField<MeshType>::CrossVector(f,dir);
+		GLDrawField(dir,center,size);
+	}
+	
+	static void GLDrawVertField(const MeshType &mesh,
+								const VertexType &v,
+								ScalarType &size)
+	{
+		CoordType center=v.cP();
+		CoordType normal=v.cN();
+		CoordType dir[4];
+		vcg::tri::CrossField<MeshType>::CrossVector(v,dir);
+		GLDrawField(dir,center,size);
+	}
 
 public:
 
@@ -41,12 +58,12 @@ public:
 		MyScalarType size=10;
 		glPointSize(size);
 		glBegin(GL_POINTS);
-		for (int i=0;i<mymesh.vert.size();i++)
+		for (int i=0;i<mesh.vert.size();i++)
 		{
-			if (mymesh.vert[i].IsD())continue;
-			if (!mymesh.vert[i].IsS())continue;
+			if (mesh.vert[i].IsD())continue;
+			if (!mesh.vert[i].IsS())continue;
 			int mmatch;
-			bool IsSing=vcg::tri::CrossField<MeshType>::IsSingular(mymesh.vert[i],mmatch);
+			bool IsSing=vcg::tri::CrossField<MeshType>::IsSingular(mesh.vert[i],mmatch);
 			if (!IsSing)continue;
 			assert(IsSing);
 			assert(mmatch!=0);
@@ -57,24 +74,41 @@ public:
 			else
 			if (mmatch==3)vcg::glColor(vcg::Color4b(0,255,255,255));
 			
-			vcg::glVertex(mymesh.vert[i].P());
+			vcg::glVertex(mesh.vert[i].P());
 			
 		}
 		glEnd();
 		glPopAttrib();
 	}
+
 	static void GLDrawFaceField(const MeshType &mesh)
 	{
-		srand(12345);
 		glPushAttrib(GL_ALL_ATTRIB_BITS);
 		glEnable(GL_COLOR_MATERIAL);
 		glDisable(GL_LIGHTING);
-		MyScalarType size=mymesh.bbox.Diag()/100.0;
+		MyScalarType size=mesh.bbox.Diag()/100.0;
 		vcg::Color4b c=vcg::Color4b(255,0,0,255);
-		for (int i=0;i<mymesh.face.size();i++)
+		for (int i=0;i<mesh.face.size();i++)
 		{
-			if (mymesh.face[i].IsD())continue;
-			GLDrawField(mymesh,mymesh.face[i],size);
+			if (mesh.face[i].IsD())continue;
+			//if (!mesh.face[i].leading)continue;
+			GLDrawFaceField(mesh,mesh.face[i],size);
+		}
+		glPopAttrib();
+	}
+
+	static void GLDrawVertField(const MeshType &mesh)
+	{
+		glPushAttrib(GL_ALL_ATTRIB_BITS);
+		glEnable(GL_COLOR_MATERIAL);
+		glDisable(GL_LIGHTING);
+		MyScalarType size=mesh.bbox.Diag()/100.0;
+		vcg::Color4b c=vcg::Color4b(255,0,0,255);
+		for (int i=0;i<mesh.vert.size();i++)
+		{
+			if (mesh.vert[i].IsD())continue;
+			//if (!mesh.face[i].leading)continue;
+			GLDrawVertField(mesh,mesh.vert[i],size);
 		}
 		glPopAttrib();
 	}