diff -r 2c154aad7f33 -r 303583d2fb97 src/raytracermodule.cc
--- a/src/raytracermodule.cc	Sat Apr 12 02:02:45 2008 +0200
+++ b/src/raytracermodule.cc	Mon Apr 14 12:51:50 2008 +0200
@@ -248,6 +248,7 @@
 static PyObject *Material_setPhong(PyObject* self, PyObject* args);
 static PyObject *Material_setReflectivity(PyObject* self, PyObject* args);
 static PyObject *Material_setTransmissivity(PyObject* self, PyObject* args);
+static PyObject *Material_setSmooth(PyObject* self, PyObject* args);
 
 static PyTypeObject MaterialType = {
 	PyObject_HEAD_INIT(NULL)
@@ -272,6 +273,7 @@
 	{"setPhong", (PyCFunction)Material_setPhong, METH_VARARGS, "Set ambient, diffuse, specular and shininess Phong model constants."},
 	{"setReflectivity", (PyCFunction)Material_setReflectivity, METH_VARARGS, "Set reflectivity."},
 	{"setTransmissivity", (PyCFunction)Material_setTransmissivity, METH_VARARGS, "Set transmissivity and refraction index."},
+	{"setSmooth", (PyCFunction)Material_setSmooth, METH_VARARGS, "Set triangle smoothing."},
 	{NULL, NULL}
 };
 
@@ -345,6 +347,20 @@
 	return Py_None;
 }
 
+static PyObject* Material_setSmooth(PyObject* self, PyObject* args)
+{
+	int smooth;
+
+	if (!PyArg_ParseTuple(args, "i", &smooth))
+		return NULL;
+
+	((MaterialObject *)self)->material->setSmooth(smooth);
+
+	Py_INCREF(Py_None);
+	return Py_None;
+}
+
+
 //=========================== NormalVertex Object ===========================
 
 typedef struct {
@@ -389,19 +405,27 @@
 	PyObject *TNor = NULL;
 	Float vx, vy, vz, nx=0, ny=0, nz=0;
 
-	if (!PyArg_ParseTupleAndKeywords(args, kwd, "O!|O!", kwdlist,
-		&PyTuple_Type, &TVer, &PyTuple_Type, &TNor))
-		return NULL;
-
-	if (!PyArg_ParseTuple(TVer, "fff", &vx, &vy, &vz))
+	if (!PyArg_ParseTupleAndKeywords(args, kwd, "O|O!", kwdlist,
+		&TVer, &PyTuple_Type, &TNor))
 		return NULL;
 
-	if (TNor)
-		if (!PyArg_ParseTuple(TNor, "fff", &nx, &ny, &nz))
+	if (!TNor && TVer->ob_type == &NormalVertexType)
+	{
+		v = PyObject_New(NormalVertexObject, &NormalVertexType);
+		v->nvertex = new NormalVertex(((NormalVertexObject*)TVer)->nvertex);
+	}
+	else
+	{
+		if (!PyArg_ParseTuple(TVer, "fff", &vx, &vy, &vz))
 			return NULL;
 
-	v = PyObject_New(NormalVertexObject, &NormalVertexType);
-	v->nvertex = new NormalVertex(Vector3(vx, vy, vz), Vector3(nx, ny, nz));
+		if (TNor)
+			if (!PyArg_ParseTuple(TNor, "fff", &nx, &ny, &nz))
+				return NULL;
+
+		v = PyObject_New(NormalVertexObject, &NormalVertexType);
+		v->nvertex = new NormalVertex(Vector3(vx, vy, vz), Vector3(nx, ny, nz));
+	}
 	return (PyObject*)v;
 }
 
@@ -580,7 +604,6 @@
 static void Triangle_Destructor(PyObject* self);
 static PyObject *Triangle_Getattr(PyObject *self, char *name);
 static PyObject *Triangle_getNormal(PyObject* self, PyObject* args);
-static PyObject *Triangle_setSmooth(PyObject* self, PyObject* args);
 
 static PyTypeObject TriangleType = {
 	PyObject_HEAD_INIT(NULL)
@@ -603,7 +626,6 @@
 
 static PyMethodDef TriangleMethods[] = {
 	{"getNormal", (PyCFunction)Triangle_getNormal, METH_NOARGS, "Get normal of whole triangle."},
-	{"setSmooth", (PyCFunction)Triangle_setSmooth, METH_NOARGS, "Set the triangle smooth."},
 	{NULL, NULL}
 };
 
@@ -649,13 +671,6 @@
 	return obj;
 }
 
-static PyObject* Triangle_setSmooth(PyObject* self, PyObject* args)
-{
-	((TriangleObject *)self)->triangle->setSmooth();
-	Py_INCREF(Py_None);
-	return Py_None;
-}
-
 //=========================== Raytracer Object ===========================
 
 typedef struct {