diff --git a/panda/src/egg2pg/Sources.pp b/panda/src/egg2pg/Sources.pp
index 2d7da25636..4eaa415f3f 100644
--- a/panda/src/egg2pg/Sources.pp
+++ b/panda/src/egg2pg/Sources.pp
@@ -1,6 +1,8 @@
 #define OTHER_LIBS interrogatedb:c dconfig:c dtoolconfig:m \
                    dtoolutil:c dtoolbase:c dtool:m
 
+#define USE_NURBSPP yes
+
 #begin lib_target
   #define TARGET egg2pg
   #define LOCAL_LIBS \
diff --git a/panda/src/egg2pg/qpeggLoader.cxx b/panda/src/egg2pg/qpeggLoader.cxx
index 10794cfc69..a9f8efd714 100644
--- a/panda/src/egg2pg/qpeggLoader.cxx
+++ b/panda/src/egg2pg/qpeggLoader.cxx
@@ -60,6 +60,10 @@
 #include "collisionSphere.h"
 #include "collisionPlane.h"
 #include "collisionPolygon.h"
+#include "parametricCurve.h"
+#include "nurbsCurve.h"
+#include "classicNurbsCurve.h"
+#include "nurbsCurveInterface.h"
 
 #include <ctype.h>
 #include <algorithm>
@@ -1090,10 +1094,8 @@ make_node(EggNode *egg_node, PandaNode *parent) {
 ////////////////////////////////////////////////////////////////////
 PandaNode *qpEggLoader::
 make_node(EggNurbsCurve *egg_curve, PandaNode *parent) {
-  return (PandaNode *)NULL;
-  /*
   assert(parent != NULL);
-  assert(!parent->is_of_type(GeomNode::get_class_type()));
+  assert(!parent->is_geom_node());
 
   PT(ParametricCurve) curve;
 
@@ -1160,8 +1162,8 @@ make_node(EggNurbsCurve *egg_curve, PandaNode *parent) {
     return (PandaNode *)NULL;
   }
 
-  return new PandaNode(parent, curve);
-  */
+  parent->add_child(curve);
+  return curve;
 }
 
 ////////////////////////////////////////////////////////////////////
diff --git a/panda/src/egg2sg/eggLoader.cxx b/panda/src/egg2sg/eggLoader.cxx
index 81fcc8b2bd..246b67a39a 100644
--- a/panda/src/egg2sg/eggLoader.cxx
+++ b/panda/src/egg2sg/eggLoader.cxx
@@ -1162,6 +1162,8 @@ make_node(EggNode *egg_node, NamedNode *parent) {
 ////////////////////////////////////////////////////////////////////
 RenderRelation *EggLoader::
 make_node(EggNurbsCurve *egg_curve, NamedNode *parent) {
+  return (RenderRelation *)NULL;
+  /*
   assert(parent != NULL);
   assert(!parent->is_of_type(GeomNode::get_class_type()));
 
@@ -1231,6 +1233,7 @@ make_node(EggNurbsCurve *egg_curve, NamedNode *parent) {
   }
 
   return new RenderRelation(parent, curve);
+  */
 }
 
 ////////////////////////////////////////////////////////////////////
diff --git a/panda/src/parametrics/Sources.pp b/panda/src/parametrics/Sources.pp
index c938939c13..6944a06dd0 100644
--- a/panda/src/parametrics/Sources.pp
+++ b/panda/src/parametrics/Sources.pp
@@ -6,7 +6,7 @@
 #begin lib_target
   #define TARGET parametrics
   #define LOCAL_LIBS \
-    grutil sgattrib linmath express putil pandabase
+    pgraph grutil sgattrib linmath express putil pandabase
     
   #define COMBINED_SOURCES $[TARGET]_composite1.cxx $[TARGET]_composite2.cxx    
 
diff --git a/panda/src/parametrics/config_parametrics.cxx b/panda/src/parametrics/config_parametrics.cxx
index 7470803503..c73c1b0354 100644
--- a/panda/src/parametrics/config_parametrics.cxx
+++ b/panda/src/parametrics/config_parametrics.cxx
@@ -49,6 +49,7 @@ ConfigureFn(config_parametrics) {
 
 #ifdef HAVE_NURBSPP
   NurbsPPCurve::init_type();
+  NurbsPPCurve::register_with_read_factory();
 #endif
 
   ClassicNurbsCurve::register_with_read_factory();
diff --git a/panda/src/parametrics/parametricCurve.cxx b/panda/src/parametrics/parametricCurve.cxx
index 8015bc3fe0..9e44749a17 100644
--- a/panda/src/parametrics/parametricCurve.cxx
+++ b/panda/src/parametrics/parametricCurve.cxx
@@ -39,20 +39,9 @@ TypeHandle ParametricCurve::_type_handle;
 //               one from Scheme.
 ////////////////////////////////////////////////////////////////////
 ParametricCurve::
-ParametricCurve() {
+ParametricCurve() : PandaNode("curve") {
   _curve_type = PCT_NONE;
   _num_dimensions = 3;
-
-  // This CurveDrawer object is used to draw the curve implicitly if
-  // it happens to get parented to render, but only if the curve_type
-  // is set to PCT_XYZ or PCT_NONE.
-  _implicit_drawer = (ParametricCurveDrawer *)NULL;
-
-  // And until we attempt to draw it, we set our bounding volume to be
-  // infinitely large (since we don't know).  Once we draw it the
-  // first time, we'll recompute the bounding volume according to the
-  // geometry of what we just drew.
-  set_bound(OmniBoundingVolume());
 }
 
 ////////////////////////////////////////////////////////////////////
@@ -62,10 +51,6 @@ ParametricCurve() {
 ////////////////////////////////////////////////////////////////////
 ParametricCurve::
 ~ParametricCurve() {
-  if (_implicit_drawer != (ParametricCurveDrawer *)NULL) {
-    delete _implicit_drawer;
-  }
-
   // Our drawer list must be empty by the time we destruct, since our
   // drawers all maintain reference-counting pointers to us!  If this
   // is not so, we have lost a reference count somewhere, or we have
@@ -73,6 +58,33 @@ ParametricCurve::
   nassertv(_drawers.empty());
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: ParametricCurve::safe_to_flatten
+//       Access: Public, Virtual
+//  Description: Returns true if it is generally safe to flatten out
+//               this particular kind of PandaNode by duplicating
+//               instances, false otherwise (for instance, a Camera
+//               cannot be safely flattened, because the Camera
+//               pointer itself is meaningful).
+////////////////////////////////////////////////////////////////////
+bool ParametricCurve::
+safe_to_flatten() const {
+  return false;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: ParametricCurve::safe_to_transform
+//       Access: Public, Virtual
+//  Description: Returns true if it is generally safe to transform
+//               this particular kind of PandaNode by calling the
+//               xform() method, false otherwise.  For instance, it's
+//               usually a bad idea to attempt to xform a Character.
+////////////////////////////////////////////////////////////////////
+bool ParametricCurve::
+safe_to_transform() const {
+  return false;
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: ParametricCurve::is_valid
 //       Access: Published, Virtual
@@ -613,32 +625,6 @@ convert_to_nurbs(ParametricCurve *nc) const {
   return nc->recompute();
 }
 
-////////////////////////////////////////////////////////////////////
-//     Function: ParametricCurve::draw_traverse
-//       Access: Public, Virtual
-//  Description: This is called by the Draw traversal by virtue of the
-//               node's being present in the scene graph.  Its job is
-//               to make sure the visualization of the collideable
-//               geometry is up-to-date.
-////////////////////////////////////////////////////////////////////
-void ParametricCurve::
-draw_traverse(const ArcChain &) {
-  if (_implicit_drawer == (ParametricCurveDrawer *)NULL) {
-    _implicit_drawer = new ParametricCurveDrawer();
-    _implicit_drawer->set_curve(this);
-    _implicit_drawer->draw();
-    _viz_arc = new RenderRelation(this, _implicit_drawer->detach_geom_node());
-
-    // We must then tell the drawer to forget about us, so we don't
-    // maintain a circular reference count.
-    _implicit_drawer->clear_curves();
-
-    // Set our bounding type to accurately reflect the new geometry
-    // beneath this node.
-    set_bound(BVT_dynamic_sphere);
-  }
-}
-
 
 ////////////////////////////////////////////////////////////////////
 //     Function: ParametricCurve::register_drawer
@@ -699,26 +685,6 @@ invalidate_all() {
        ++n) {
     (*n)->redraw();
   }
-
-  // Also update the implicit representation.
-  if (_implicit_drawer != (ParametricCurveDrawer *)NULL) {
-    if (_viz_arc->get_parent() != this) {
-      // Hey, someone has moved the visualization.  In that case,
-      // forget about it.
-      _viz_arc = (NodeRelation *)NULL;
-      delete _implicit_drawer;
-      _implicit_drawer = (ParametricCurveDrawer *)NULL;
-      set_bound(OmniBoundingVolume());
-
-    } else {
-      // Ok, the visualization is still there.  Regenerate it.
-      remove_arc(_viz_arc);
-      _implicit_drawer->set_curve(this);
-      _implicit_drawer->draw();
-      _viz_arc = new RenderRelation(this, _implicit_drawer->detach_geom_node());
-      _implicit_drawer->clear_curves();
-    }
-  }
 }
 
 ////////////////////////////////////////////////////////////////////
@@ -856,7 +822,7 @@ r_find_length(float target_length, float &found_t,
 ////////////////////////////////////////////////////////////////////
 void ParametricCurve::
 write_datagram(BamWriter *manager, Datagram &me) {
-  NamedNode::write_datagram(manager, me);
+  PandaNode::write_datagram(manager, me);
 
   me.add_int8(_curve_type);
   me.add_int8(_num_dimensions);
@@ -872,7 +838,7 @@ write_datagram(BamWriter *manager, Datagram &me) {
 ////////////////////////////////////////////////////////////////////
 void ParametricCurve::
 fillin(DatagramIterator &scan, BamReader *manager) {
-  NamedNode::fillin(scan, manager);
+  PandaNode::fillin(scan, manager);
 
   _curve_type = scan.get_int8();
   _num_dimensions = scan.get_int8();
diff --git a/panda/src/parametrics/parametricCurve.h b/panda/src/parametrics/parametricCurve.h
index d9e919ebec..d6fa45eca9 100644
--- a/panda/src/parametrics/parametricCurve.h
+++ b/panda/src/parametrics/parametricCurve.h
@@ -19,13 +19,12 @@
 #ifndef PARAMETRICCURVE_H
 #define PARAMETRICCURVE_H
 
-#include <pandabase.h>
+#include "pandabase.h"
 
-#include <namedNode.h>
-#include <pt_NodeRelation.h>
-#include <luse.h>
+#include "pandaNode.h"
+#include "luse.h"
 
-#include <typedef.h>
+#include "typedef.h"
 #include "plist.h"
 #include "pvector.h"
 
@@ -62,11 +61,16 @@ class NurbsCurveInterface;
 //               This encapsulates all curves in 3-d space defined
 //               for a single parameter t in the range [0,get_max_t()].
 ////////////////////////////////////////////////////////////////////
-class EXPCL_PANDA ParametricCurve : public NamedNode {
+class EXPCL_PANDA ParametricCurve : public PandaNode {
 PUBLISHED:
   ParametricCurve();
   virtual ~ParametricCurve();
 
+public:
+  virtual bool safe_to_flatten() const;
+  virtual bool safe_to_transform() const;
+
+PUBLISHED:
   virtual bool is_valid() const;
 
   virtual float get_max_t() const;
@@ -114,8 +118,6 @@ public:
   virtual bool convert_to_hermite(HermiteCurve *hc) const;
   virtual bool convert_to_nurbs(ParametricCurve *nc) const;
 
-  virtual void draw_traverse(const ArcChain &chain);
-
   void register_drawer(ParametricCurveDrawer *drawer);
   void unregister_drawer(ParametricCurveDrawer *drawer);
 
@@ -142,8 +144,6 @@ protected:
 private:
   typedef plist<ParametricCurveDrawer *> DrawerList;
   DrawerList _drawers;
-  ParametricCurveDrawer *_implicit_drawer;
-  PT_NodeRelation _viz_arc;
 
 // TypedWritable stuff
 protected:
@@ -155,9 +155,9 @@ public:
     return _type_handle;
   }
   static void init_type() {
-    NamedNode::init_type();
+    PandaNode::init_type();
     register_type(_type_handle, "ParametricCurve",
-                  NamedNode::get_class_type());
+                  PandaNode::get_class_type());
   }
   virtual TypeHandle get_type() const {
     return get_class_type();
diff --git a/panda/src/parametrics/parametricCurveCollection.cxx b/panda/src/parametrics/parametricCurveCollection.cxx
index 721f2a19fe..0b2b589849 100644
--- a/panda/src/parametrics/parametricCurveCollection.cxx
+++ b/panda/src/parametrics/parametricCurveCollection.cxx
@@ -71,7 +71,7 @@ add_curve(ParametricCurve *curve, int index) {
 //               found.
 ////////////////////////////////////////////////////////////////////
 int ParametricCurveCollection::
-add_curves(Node *node) {
+add_curves(PandaNode *node) {
   int num_curves = r_add_curves(node);
 
   if (num_curves > 0) {
@@ -853,7 +853,7 @@ write_egg(ostream &out, const Filename &filename, CoordinateSystem cs) {
 //  Description: The recursive implementation of add_curves().
 ////////////////////////////////////////////////////////////////////
 int ParametricCurveCollection::
-r_add_curves(Node *node) {
+r_add_curves(PandaNode *node) {
   int num_curves = 0;
 
   if (node->is_of_type(ParametricCurve::get_class_type())) {
@@ -863,10 +863,10 @@ r_add_curves(Node *node) {
     num_curves++;
   }
 
-  int num_children = node->get_num_children(RenderRelation::get_class_type());
+  int num_children = node->get_num_children();
   for (int i = 0; i < num_children; i++) {
-    NodeRelation *arc = node->get_child(RenderRelation::get_class_type(), i);
-    num_curves += r_add_curves(arc->get_child());
+    PandaNode *child = node->get_child(i);
+    num_curves += r_add_curves(child);
   }
 
   return num_curves;
diff --git a/panda/src/parametrics/parametricCurveCollection.h b/panda/src/parametrics/parametricCurveCollection.h
index 7efea58477..6fbc5b63ab 100644
--- a/panda/src/parametrics/parametricCurveCollection.h
+++ b/panda/src/parametrics/parametricCurveCollection.h
@@ -49,7 +49,7 @@ PUBLISHED:
 
   void add_curve(ParametricCurve *curve);
   void add_curve(ParametricCurve *curve, int index);
-  int add_curves(Node *node);
+  int add_curves(PandaNode *node);
   bool remove_curve(ParametricCurve *curve);
   void remove_curve(int index);
   bool has_curve(ParametricCurve *curve) const;
@@ -95,7 +95,7 @@ PUBLISHED:
   bool write_egg(ostream &out, const Filename &filename, CoordinateSystem cs);
 
 public:
-  int r_add_curves(Node *node);
+  int r_add_curves(PandaNode *node);
   void register_drawer(ParametricCurveDrawer *drawer);
   void unregister_drawer(ParametricCurveDrawer *drawer);