diff --git a/code/nel/include/nel/3d/ps_attrib_maker_bin_op_inline.h b/code/nel/include/nel/3d/ps_attrib_maker_bin_op_inline.h
index 0070ffb38..673925643 100644
--- a/code/nel/include/nel/3d/ps_attrib_maker_bin_op_inline.h
+++ b/code/nel/include/nel/3d/ps_attrib_maker_bin_op_inline.h
@@ -43,7 +43,7 @@ template <>
 inline CPlaneBasis PSBinOpModulate(const CPlaneBasis &p1, const CPlaneBasis &p2)
 {
 	// we compute p1 * p2
-	NLMISC::CVector z = p1.X ^ p1.Y;
+	NLMISC::CVector z = CVector(p1.X) ^ CVector(p1.Y);
 	CPlaneBasis r;
 	r.X.x = p2.X.x * p1.X.x + p2.X.y * p1.Y.x + p2.X.z * z.x;
 	r.X.y = p2.X.x * p1.X.y + p2.X.y * p1.Y.y + p2.X.z * z.y;
diff --git a/code/nel/include/nel/3d/ps_plane_basis.h b/code/nel/include/nel/3d/ps_plane_basis.h
index 41882e148..2c8fd07c4 100644
--- a/code/nel/include/nel/3d/ps_plane_basis.h
+++ b/code/nel/include/nel/3d/ps_plane_basis.h
@@ -37,8 +37,8 @@ namespace NL3D {
 
 struct CPlaneBasis
 {
-	NLMISC::CVector X ;
-	NLMISC::CVector Y ;
+	NLMISC::CVectorPacked X ;
+	NLMISC::CVectorPacked Y ;
 
 
 	// default ctor
@@ -62,7 +62,7 @@ struct CPlaneBasis
 	/// compute the normal of the plane basis
 	NLMISC::CVector getNormal(void) const
 	{
-		return X ^ Y ;
+		return CVector(X) ^ CVector(Y) ;
 	}
 
 
diff --git a/code/nel/include/nel/misc/vector.h b/code/nel/include/nel/misc/vector.h
index f9667e1c7..1d4ef3fe4 100644
--- a/code/nel/include/nel/misc/vector.h
+++ b/code/nel/include/nel/misc/vector.h
@@ -212,6 +212,34 @@ public:
 	{
 		return CVector(*this) - v;
 	}
+
+	bool	operator==(const CVectorPacked &v) const
+	{
+		return x==v.x && y==v.y && z==v.z;
+	}
+	bool	operator!=(const CVectorPacked &v) const
+	{
+		return !(*this==v);
+	}
+	bool	operator<(const CVectorPacked &v) const
+	{
+		if(x!=v.x)
+			return x<v.x;
+		if(y!=v.y)
+			return y<v.y;
+		return z<v.z;
+	}
+	
+	CVector	operator^(const CVector &v) const
+	{
+		CVector	ret;
+
+		ret.x= y*v.z - z*v.y;
+		ret.y= z*v.x - x*v.z;
+		ret.z= x*v.y - y*v.x;
+
+		return ret;
+	}
 };
 
 // blend (faster version than the generic version found in algo.h)
diff --git a/code/nel/src/3d/ps_mesh.cpp b/code/nel/src/3d/ps_mesh.cpp
index a8c057497..2a875588a 100644
--- a/code/nel/src/3d/ps_mesh.cpp
+++ b/code/nel/src/3d/ps_mesh.cpp
@@ -404,8 +404,8 @@ void CPSMesh::updatePos()
 
 
 
-			mat.setRot( ptBasis->X * CPSUtil::getCos((sint32) *ptCurrAngle) + ptBasis->Y * CPSUtil::getSin((sint32) *ptCurrAngle)
-						, ptBasis->X * CPSUtil::getCos((sint32) *ptCurrAngle + 64) + ptBasis->Y * CPSUtil::getSin((sint32) *ptCurrAngle + 64)
+			mat.setRot( CVector(ptBasis->X) * CPSUtil::getCos((sint32) *ptCurrAngle) + CVector(ptBasis->Y) * CPSUtil::getSin((sint32) *ptCurrAngle)
+						, CVector(ptBasis->X) * CPSUtil::getCos((sint32) *ptCurrAngle + 64) + CVector(ptBasis->Y) * CPSUtil::getSin((sint32) *ptCurrAngle + 64)
 						, ptBasis->X ^ ptBasis->Y
 					  );