diff -r 83d0200d4c09 -r 28f6e8b9d5d1 include/scene.h
--- a/include/scene.h	Sun Dec 09 15:01:51 2007 +0100
+++ b/include/scene.h	Sun Dec 09 23:10:58 2007 +0100
@@ -1,8 +1,8 @@
 /*
- * C++ RayTracer
+ * Pyrit Ray Tracer
  * file: scene.h
  *
- * Radek Brich, 2006
+ * Radek Brich, 2006-2007
  */
 
 #ifndef SCENE_H
@@ -13,6 +13,7 @@
 
 #include "noise.h"
 #include "vector.h"
+#include "quaternion.h"
 
 /*
 triangle intersection alghoritm
@@ -35,40 +36,6 @@
 		o(ao), dir(adir) {};
 };
 
-class Quaternion
-{
-public:
-	Float a,b,c,d;
-	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) {};
-
-	Vector3 toVector() { return Vector3(b/a, c/a, d/a); };
-
-	Quaternion normalize()
-	{
-		Float f = 1.0f / sqrtf(a * a + b * b + c * c + d * d);
-		a *= f;
-		b *= f;
-		c *= f;
-		d *= f;
-		return *this;
-	};
-	friend Quaternion operator*(const Quaternion &q1, const Quaternion &q2)
-	{
-		return Quaternion(
-			q1.a*q2.a - q1.b*q2.b - q1.c*q2.c - q1.d*q2.d,
-			q1.a*q2.b + q1.b*q2.a + q1.c*q2.d - q1.d*q2.c,
-			q1.a*q2.c + q1.c*q2.a + q1.d*q2.b - q1.b*q2.d,
-			q1.a*q2.d + q1.d*q2.a + q1.b*q2.c - q1.c*q2.b);
-	};
-	friend Quaternion conjugate(const Quaternion &q)
-	{
-		return Quaternion(q.a, -q.b, -q.c, -q.d);
-	}
-};
-
 class Camera
 {
 public: