--- /dev/null
+/*
+This file is part of the graphics core library.
+
+Copyright (c) 2004, 2005 John Tsiombikas <nuclear@siggraph.org>
+
+the graphics core library 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 graphics core library 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 the graphics core library; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+/* Bounding volumes
+ *
+ * Author: John Tsiombikas 2005
+ */
+
+#ifndef _BVOL_HPP_
+#define _BVOL_HPP_
+
+#include <vector>
+#include "n3dmath2/n3dmath2.hpp"
+#include "gfx/base_cam.hpp"
+
+class BoundingVolume {
+protected:
+ BoundingVolume *parent;
+ std::vector<BoundingVolume*> children;
+ Matrix4x4 transform;
+
+public:
+ BoundingVolume();
+ virtual ~BoundingVolume();
+
+ virtual void set_transform(const Matrix4x4 &transform);
+
+ virtual bool ray_hit(const Ray &ray) const = 0;
+ virtual bool visible(const FrustumPlane *frustum) const = 0;
+};
+
+class BoundingSphere : public BoundingVolume, public Sphere {
+public:
+ BoundingSphere(const Vector3 &pos = Vector3(0,0,0), scalar_t rad = 1.0);
+
+ virtual bool ray_hit(const Ray &ray) const;
+ virtual bool visible(const FrustumPlane *frustum) const;
+};
+
+#endif // _BVOL_HPP_