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engine/lightingSystem/sgBinaryVolumePartitionTree.cc

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+//---------------------------------------------------------------
+// Synapse Gaming - Binary Volume Partition Tree
+// Copyright <20> Synapse Gaming 2004 - 2005
+// Written by John Kabus
+//
+// Overview:
+//  The Binary Volume Partition Tree (BVPT) is a hybrid of the
+//  BSP and Oct-tree spacial partitioning schemes that combines
+//  the strengths of both into a system that can efficiently
+//  processes large amounts of geometry and geometry with large
+//  surface area, which allows optimal handling of both brush
+//  and mesh geometry.
+//
+//  Similar to Oct-tree partitioning, BVPT splits the geometric
+//  'world' into equal volumes and each volume into sub-volumes
+//  creating a tree that assigns each surface or object into the
+//  smallest volume that completely contains it.
+//
+//  The main disadvantage to using Oct-trees is that all geometry
+//  that rides the border between *any* two octants is maintained
+//  by the parent volume, which means the geometry is used every
+//  time the parent volume is traversed regardless of the
+//  relationship to the requested octant.
+//
+//  BVPT avoids Oct-tree inefficiencies by splitting volumes in
+//  half (instead of into eighths).  Because of this all geometry
+//  maintained by the parent volume spans both of the two sub-volumes,
+//  meaning that the parent geometry has a definite relationship
+//  to the requested sub-volume.
+//---------------------------------------------------------------
+
+#include "lightingSystem/sgBinaryVolumePartitionTree.h"
+
+
+
+