diff --git a/apps/sample/aabb_binary_tree/aabb_binary_tree.cpp b/apps/sample/aabb_binary_tree/aabb_binary_tree.cpp
index b242f0b6..56d6c1ee 100644
--- a/apps/sample/aabb_binary_tree/aabb_binary_tree.cpp
+++ b/apps/sample/aabb_binary_tree/aabb_binary_tree.cpp
@@ -5,8 +5,12 @@
 #include <vector>
 
 // vcg headers
-#include<vcg/simplex/vertex/vertex.h>
-#include<vcg/simplex/face/with/rtfmfn.h>
+//#include<vcg/simplex/vertex/vertex.h>
+//#include<vcg/simplex/face/with/rtfmfn.h>
+#include<vcg/simplex/vertexplus/base.h>
+#include<vcg/simplex/faceplus/base.h>
+#include<vcg/simplex/faceplus/component_rt.h>
+
 #include<vcg/simplex/face/distance.h>
 #include<vcg/complex/trimesh/base.h>
 #include <vcg/complex/trimesh/create/platonic.h>
@@ -19,10 +23,16 @@
 
 typedef float AScalarType;
 
+using namespace vcg;
+
 class AEdge;
 class AFace;
-class AVertex   : public vcg::Vertex< AScalarType, AEdge, AFace > { };
-class AFace     : public vcg::FaceRTFMFN< AVertex, AEdge, AFace > { };
+class AVertex     : public VertexSimp2< AVertex, AEdge, AFace, vert::Normal3f, vert::Coord3f >{};
+class AFace       : public FaceSimp2<   AVertex, AEdge, AFace, face::VertexRef, face::Normal3f, face::RTInfo, face::BitFlags> {};
+
+//class AVertex   : public vcg::Vertex< AScalarType, AEdge, AFace > { };
+//class AFace     : public vcg::FaceRTFMFN< AVertex, AEdge, AFace > { };
+
 class AMesh     : public vcg::tri::TriMesh< std::vector<AVertex>, std::vector<AFace> > { };
 
 typedef vcg::AABBBinaryTreeIndex<AFace, AScalarType, vcg::EmptyClass> AIndex;
diff --git a/apps/sample/trimesh_isosurface/trimesh_isosurface.cpp b/apps/sample/trimesh_isosurface/trimesh_isosurface.cpp
index 69076ff3..c89c6b24 100644
--- a/apps/sample/trimesh_isosurface/trimesh_isosurface.cpp
+++ b/apps/sample/trimesh_isosurface/trimesh_isosurface.cpp
@@ -10,8 +10,8 @@
 using namespace std;
 using namespace vcg;
 
-#include <vcg/simplex/vertex/vertex.h>
-#include <vcg/simplex/face/face.h>
+#include <vcg/simplex/vertexplus/base.h>
+#include <vcg/simplex/faceplus/base.h>
 #include <vcg/complex/trimesh/base.h>
 #include <vcg/complex/trimesh/allocate.h>
 
@@ -19,8 +19,13 @@ typedef float ScalarType;
 
 class MyEdge;
 class MyFace;
-class MyVertex : public vcg::Vertex< ScalarType, MyEdge, MyFace > {};
-class MyFace		: public vcg::Face< MyVertex, MyEdge, MyFace> {};
+
+class MyVertex     : public VertexSimp2< MyVertex,  MyEdge, MyFace, vert::Coord3f>{};
+class MyFace       : public FaceSimp2< MyVertex,    MyEdge, MyFace, face::VertexRef, face::BitFlags> {};
+
+//class MyVertex  : public vcg::Vertex< ScalarType, MyEdge, MyFace > {};
+//class MyFace		: public vcg::Face< MyVertex, MyEdge, MyFace> {};
+
 class MyMesh		: public vcg::tri::TriMesh< std::vector< MyVertex>, std::vector< MyFace > > {};
 
 template <class VOX_TYPE>
@@ -118,7 +123,7 @@ public:
 
 typedef Volume<SimpleVoxel> MyVolume;
 
-int main(int argc, char *argv[])
+int main(int /*argc*/ , char /**argv[]*/)
 {
 	MyVolume	volume;
   
@@ -132,7 +137,7 @@ int main(int argc, char *argv[])
   for(int i=0;i<64;i++)
     for(int j=0;j<64;j++)
       for(int k=0;k<64;k++)
-        volume.Val(i,j,k)=(j-32)*(j-32)+(k-32)*(k-32)  + i*10*math::Perlin::Noise(i*.2,j*.2,k*.2);
+        volume.Val(i,j,k)=(j-32)*(j-32)+(k-32)*(k-32)  + i*10*(float)math::Perlin::Noise(i*.2,j*.2,k*.2);
 
 
 	// MARCHING CUBES
diff --git a/apps/sample/trimesh_join/trimesh_join.cpp b/apps/sample/trimesh_join/trimesh_join.cpp
index 74913bd5..cc1331b5 100644
--- a/apps/sample/trimesh_join/trimesh_join.cpp
+++ b/apps/sample/trimesh_join/trimesh_join.cpp
@@ -59,8 +59,8 @@ int main(int argc,char **argv )
                 printf("Error in parsing bbox option");
   		          exit(0);
               }
-              ClipBB.min[0]=atof(argv[i+1]); ClipBB.min[1]=atof(argv[i+2]); ClipBB.min[2]=atof(argv[i+3]);
-              ClipBB.max[0]=atof(argv[i+4]); ClipBB.max[1]=atof(argv[i+5]); ClipBB.max[2]=atof(argv[i+6]);
+              ClipBB.min=Point3f::Construct(atof(argv[i+1]),atof(argv[i+2]),atof(argv[i+3]));
+              ClipBB.max=Point3f::Construct(atof(argv[i+4]),atof(argv[i+5]),atof(argv[i+6]));
               i+=6;
               printf("Clipping incoming meshes with box:\n (%7.4f %7.4f %7.4f) - (%7.4f %7.4f %7.4f)\n",
                     ClipBB.min[0],ClipBB.min[1],ClipBB.min[2],
diff --git a/apps/sample/trimesh_smooth/trimesh_smooth.cpp b/apps/sample/trimesh_smooth/trimesh_smooth.cpp
index 9f6f389a..fc5771bd 100644
--- a/apps/sample/trimesh_smooth/trimesh_smooth.cpp
+++ b/apps/sample/trimesh_smooth/trimesh_smooth.cpp
@@ -29,16 +29,9 @@ class MyVertex  : public VertexSimp2< MyVertex, MyEdge, MyFace, vert::VFAdj, ver
 class MyFace    : public FaceSimp2  < MyVertex, MyEdge, MyFace, face::VFAdj, face::Normal3f, face::VertexRef, face::BitFlags > {};
 class MyMesh    : public vcg::tri::TriMesh<vector<MyVertex>, vector<MyFace> > {};
 
-//class MyFace;
-//class MyEdge;
-//class MyVertex:public Vertex<float,MyEdge,MyFace>{};
-//class MyFace :public FaceFN<MyVertex,MyEdge,MyFace>{};
-//class MyMesh: public tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace > >{};
-//
-
 int main(int argc,char ** argv)
 {
-if(argc<3) 
+if(argc<4) 
 {
   printf("Usage: trimesh_smooth <filename> <steps> <sigma> <fitstep>\n");
   return 0;
@@ -48,18 +41,19 @@ if(argc<3)
 
 	//open a mesh
 	int err = tri::io::Importer<MyMesh>::Open(m,argv[1]);
-  if(err) {
-      printf("Error in reading %s: '%s'\n",argv[1],tri::io::Importer<MyMesh>::ErrorMsg(err));
+  if(err) { // all the importers return 0 in case of success
+      printf("Error in reading %s: '%s'\n",argv[1], tri::io::Importer<MyMesh>::ErrorMsg(err));
       exit(-1);
     }
+
   // some cleaning to get rid of bad file formats like stl that duplicate vertexes..
   int dup = tri::Clean<MyMesh>::RemoveDuplicateVertex(m);
   int unref =  tri::Clean<MyMesh>::RemoveUnreferencedVertex(m);
   printf("Removed %i duplicate and %i unreferenced vertices from mesh %s\n",dup,unref,argv[1]);
   int Step= atoi(argv[2]);
+
   tri::UpdateTopology<MyMesh>::VertexFace(m);
-  tri::UpdateNormals<MyMesh>::PerFaceNormalized(m);
- 
+
   for(int i=0;i<Step;++i)
   {
     tri::UpdateNormals<MyMesh>::PerFaceNormalized(m);
diff --git a/apps/sample/trimesh_topology/trimesh_topology.cpp b/apps/sample/trimesh_topology/trimesh_topology.cpp
index 272c4cb5..f1165d3c 100644
--- a/apps/sample/trimesh_topology/trimesh_topology.cpp
+++ b/apps/sample/trimesh_topology/trimesh_topology.cpp
@@ -1,7 +1,7 @@
 #include <vector>
 
-#include<vcg/simplex/vertex/vertex.h>
-#include<vcg/simplex/face/with/affm.h>
+#include<vcg/simplex/vertexplus/base.h>
+#include<vcg/simplex/faceplus/base.h>
 #include<vcg/simplex/face/topology.h>
 #include<vcg/complex/trimesh/base.h>
 #include<vcg/complex/trimesh/create/platonic.h>
@@ -16,10 +16,17 @@
 
 using namespace vcg;
 
+class MyEdge;    // dummy prototype never used
 class MyFace;
-class MyEdge;
-class MyVertex:public Vertex<float,MyEdge,MyFace>{};
-class MyFace : public FaceAFFM<MyVertex,MyEdge,MyFace>{};
+class MyVertex;
+
+class MyVertex  : public VertexSimp2< MyVertex, MyEdge, MyFace, vert::Coord3f, vert::BitFlags  >{};
+class MyFace    : public FaceSimp2  < MyVertex, MyEdge, MyFace, face::VertexRef,face::FFAdj, face::Mark, face::BitFlags > {};
+
+
+//class MyVertex:public Vertex<float,MyEdge,MyFace>{};
+//class MyFace : public FaceAFFM<MyVertex,MyEdge,MyFace>{};
+
 class MyMesh : public tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace > >{};