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diff --git a/src/model/plane.h b/src/model/plane.h
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+++ b/src/model/plane.h
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+/*
+   model/plane.h
+   This file is part of the Osirion project and is distributed under
+   the terms of the GNU General Public License version 2
+*/
+
+#ifndef __INCLUDED_MODEL_PLANE_H__
+#define __INCLUDED_MODEL_PLANE_H__
+
+#include <string>
+
+#include "math/vector3f.h"
+
+namespace model
+{
+
+/** @brief A class representing a plane in 3d space
+ *  all points p(x, y, z) on the plane satisfy the general equation
+ *  x*a() + y*b() + z*c() + d() = 0
+ */
+class Plane
+{
+public:
+	/// a plane defined by 3 points in space
+	Plane(math::Vector3f const & point0, math::Vector3f const &point1, math::Vector3f const &point2);
+	/// copy constructor
+	Plane(Plane const & other);
+
+	/// normal of the plane, not normalized to lenght 1
+	inline math::Vector3f const & normal() const { return plane_normal; }
+	/// the points defining the plane. 
+	/// @param i 0 <= i < 3
+	inline math::Vector3f const & point(size_t i) const { return plane_point[i]; }
+	/// plane texture 
+	inline std::string & texture() { return plane_texture; }
+	/// first parameter of the general equation
+	inline float a() const { return plane_normal[0]; }
+	/// second parameter of the general equation
+	inline float b() const { return plane_normal[1]; }
+	/// third param of the general equation
+	inline float c() const { return plane_normal[2]; }
+	/// fourth parameter of the general equation
+	inline float d() const { return pd; }
+	/// indidcates if this plane was generated from a detail brush
+	inline bool & detail() { return plane_detail; }
+
+
+private:
+	math::Vector3f 		plane_point[3];
+	math::Vector3f 		plane_normal;
+	std::string		plane_texture;
+	bool			plane_detail;
+	float 			pd;
+};
+
+}
+
+#endif // __INCLUDED_MODEL_PLANE_H__