work on raytracing

geo/volume/BoundingVolume.h

@@ -0,0 +1,18 @@
+#ifndef BOUNDINGVOLUME_H
+#define BOUNDINGVOLUME_H
+
+#include "../Point3.h"
+
+class BoundingVolume {
+
+public:
+
+	/** get the volume's size (something like m^3) */
+	virtual float getVolumeSize() const = 0;
+
+	/** does the volume contain the given point? */
+	virtual bool contains(const Point3 p) const = 0;
+
+};
+
+#endif // BOUNDINGVOLUME_H