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diff --git a/intern/moto/include/MT_Vector3.h b/intern/moto/include/MT_Vector3.h
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+++ b/intern/moto/include/MT_Vector3.h
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+/**
+ * $Id$
+ * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version. The Blender
+ * Foundation also sells licenses for use in proprietary software under
+ * the Blender License.  See http://www.blender.org/BL/ for information
+ * about this.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL/BL DUAL LICENSE BLOCK *****
+ */
+
+/*
+
+ * Copyright (c) 2000 Gino van den Bergen <gino@acm.org>
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation.  Gino van den Bergen makes no
+ * representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied warranty.
+ *
+ */
+
+#ifndef MT_VECTOR3_H
+#define MT_VECTOR3_H
+
+#include <MT_assert.h>
+#include "MT_Tuple3.h"
+
+class MT_Vector3 : public MT_Tuple3 {
+public:
+    MT_Vector3() {}
+    MT_Vector3(const float *v) : MT_Tuple3(v) {}
+    MT_Vector3(const double *v) : MT_Tuple3(v) {}
+    MT_Vector3(MT_Scalar x, MT_Scalar y, MT_Scalar z) : MT_Tuple3(x, y, z) {}
+  
+    MT_Vector3& operator+=(const MT_Vector3& v);
+    MT_Vector3& operator-=(const MT_Vector3& v);
+    MT_Vector3& operator*=(MT_Scalar s);
+    MT_Vector3& operator/=(MT_Scalar s);
+  
+    MT_Scalar   dot(const MT_Vector3& v) const; 
+
+    MT_Scalar   length2() const;
+    MT_Scalar   length() const;
+
+    MT_Vector3  absolute() const;
+
+    void        noiseGate(MT_Scalar threshold);
+
+    void        normalize();
+    MT_Vector3  normalized() const;
+	MT_Vector3  safe_normalized() const;
+	
+
+    void        scale(MT_Scalar x, MT_Scalar y, MT_Scalar z); 
+    MT_Vector3  scaled(MT_Scalar x, MT_Scalar y, MT_Scalar z) const; 
+    
+    bool        fuzzyZero() const; 
+
+    MT_Scalar   angle(const MT_Vector3& v) const;
+    MT_Vector3  cross(const MT_Vector3& v) const;
+    MT_Scalar   triple(const MT_Vector3& v1, const MT_Vector3& v2) const;
+
+    int         closestAxis() const;
+
+    static MT_Vector3 random();
+};
+
+MT_Vector3 operator+(const MT_Vector3& v1, const MT_Vector3& v2);
+MT_Vector3 operator-(const MT_Vector3& v1, const MT_Vector3& v2);
+MT_Vector3 operator-(const MT_Vector3& v);
+MT_Vector3 operator*(const MT_Vector3& v, MT_Scalar s);
+MT_Vector3 operator*(MT_Scalar s, const MT_Vector3& v);
+MT_Vector3 operator/(const MT_Vector3& v, MT_Scalar s);
+
+MT_Vector3 operator*(const MT_Vector3& v1, const MT_Vector3& v2);
+
+MT_Scalar  MT_dot(const MT_Vector3& v1, const MT_Vector3& v2);
+
+MT_Scalar  MT_length2(const MT_Vector3& v);
+MT_Scalar  MT_length(const MT_Vector3& v);
+
+bool       MT_fuzzyZero(const MT_Vector3& v);
+bool       MT_fuzzyEqual(const MT_Vector3& v1, const MT_Vector3& v2);
+
+MT_Scalar  MT_angle(const MT_Vector3& v1, const MT_Vector3& v2);
+MT_Vector3 MT_cross(const MT_Vector3& v1, const MT_Vector3& v2);
+MT_Scalar  MT_triple(const MT_Vector3& v1, const MT_Vector3& v2, 
+                     const MT_Vector3& v3);
+
+#ifdef GEN_INLINED
+#include "MT_Vector3.inl"
+#endif
+
+#endif