var transform = new Transform();
      transform.setIdentity();
      transform.setOrigin(new ammo.Vector3(
        _chunks[key].width / 2.0,
        0.0,
        _chunks[key].depth / 2.0)
      );

      var heightDataPtr = Ammo.malloc(4 * _chunks[key].width.toInt() * _chunks[key].depth.toInt());
      var terrainHeightMap =_chunks[key].getTerrainHeight();
      var byteCount = 0;
      for (var j = 0; j < _chunks[key].depth; j++) {
        for (var i = 0; i < _chunks[key].width; i++) {
          Ammo.heapF32[heightDataPtr + byteCount >> 2] = terrainHeightMap[j * _chunks[key].width.toInt() + i];
          // There are 4 bytes per float (height value)
          byteCount += 4;
        }
      }
      var terrainMeshShape = new HeightfieldTerrainShape(
        _chunks[key].width.toInt(), _chunks[key].depth.toInt(),
        heightDataPtr, 1.0,
        _chunks[key].getMinimumHeight(), _chunks[key].getMaximumHeight(),
        1, "PHY_FLOAT", false
      );

      var xScaling = _chunkWidth / (_chunks[key].width - 1.0); // TODO: Calculate the terrain extents
      var zScaling = _chunkDepth / (_chunks[key].depth - 1.0);
      terrainMeshShape.setLocalScaling(new ammo.Vector3(xScaling, 1.0, zScaling));
      terrainMeshShape.setMargin(0.05);

      var motionState = new DefaultMotionState(transform);
      var constructionInfo = new RigidBodyConstructionInfo(0.0, motionState, terrainMeshShape, new ammo.Vector3(0.0, 0.0, 0.0));
      var rigidBody = new RigidBody(constructionInfo);

      _dynamicsWorld.addRigidBody(rigidBody);