--- a/include/quaternion.h	Sun Dec 30 00:11:47 2007 +0100
+++ b/include/quaternion.h	Thu Jan 03 18:06:34 2008 +0100
@@ -1,8 +1,27 @@
 /*
- * Pyrit Ray Tracer
- * file: quaternion.h
+ * quaternion.h: Quaternion class
+ *
+ * This file is part of Pyrit Ray Tracer.
+ *
+ * Copyright 2007  Radek Brich
  *
- * Radek Brich, 2006-2007
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
  */
 
 #ifndef QUATERNION_H
@@ -22,9 +41,9 @@
 	Quaternion(): a(0), b(0), c(0), d(0) {};
 	Quaternion(const Float aa, const Float ab, const Float ac, const Float ad):
 		a(aa), b(ab), c(ac), d(ad) {};
-	Quaternion(const Vector3& v): a(1), b(v.x), c(v.y), d(v.z) {};
+	Quaternion(const Vector3& v): a(0), b(v.x), c(v.y), d(v.z) {};
 
-	Vector3 toVector() { return Vector3(b/a, c/a, d/a); };
+	Vector3 toVector() { return Vector3(b, c, d); };
 
 	Quaternion normalize()
 	{