provide serialization for btOptimizedBvh, using btQuantizedBvh.

src/BulletCollision/BroadphaseCollision/btQuantizedBvh.h

@@ -459,7 +459,7 @@ public:
 	unsigned calculateSerializeBufferSize();
 
 	/// Data buffer MUST be 16 byte aligned
-	bool serialize(void *o_alignedDataBuffer, unsigned i_dataBufferSize, bool i_swapEndian);
+	virtual bool serialize(void *o_alignedDataBuffer, unsigned i_dataBufferSize, bool i_swapEndian);
 
 	///deSerializeInPlace loads and initializes a BVH from a buffer in memory 'in place'
 	static btQuantizedBvh *deSerializeInPlace(void *i_alignedDataBuffer, unsigned int i_dataBufferSize, bool i_swapEndian);

src/BulletCollision/CollisionShapes/btOptimizedBvh.cpp

@@ -377,3 +377,12 @@ void	btOptimizedBvh::updateBvhNodes(btStridingMeshInterface* meshInterface,int f
 
 		
 }
+
+///deSerializeInPlace loads and initializes a BVH from a buffer in memory 'in place'
+btOptimizedBvh* btOptimizedBvh::deSerializeInPlace(void *i_alignedDataBuffer, unsigned int i_dataBufferSize, bool i_swapEndian)
+{
+	btQuantizedBvh* bvh = btQuantizedBvh::deSerializeInPlace(i_alignedDataBuffer,i_dataBufferSize,i_swapEndian);
+	
+	//we don't add additional data so just do a static upcast
+	return static_cast<btOptimizedBvh*>(bvh);
+}

src/BulletCollision/CollisionShapes/btOptimizedBvh.h

@@ -44,6 +44,17 @@ public:
 
 	void	updateBvhNodes(btStridingMeshInterface* meshInterface,int firstNode,int endNode,int index);
 
+	/// Data buffer MUST be 16 byte aligned
+	virtual bool serialize(void *o_alignedDataBuffer, unsigned i_dataBufferSize, bool i_swapEndian)
+	{
+		return btQuantizedBvh::serialize(o_alignedDataBuffer,i_dataBufferSize,i_swapEndian);
+
+	}
+
+	///deSerializeInPlace loads and initializes a BVH from a buffer in memory 'in place'
+	static btOptimizedBvh *deSerializeInPlace(void *i_alignedDataBuffer, unsigned int i_dataBufferSize, bool i_swapEndian);
+
+
 };