lookAt( vector ) {

		_obj.lookAt( vector );

		_obj.updateMatrix();

		this.applyMatrix4( _obj.matrix );

		return this;

	}
Rotates the geometry to face a point in 3D space. This is typically done as a one time
operation, and not during a loop. Use {@link Object3D#lookAt} for typical
real-time mesh rotation.

@param {Vector3} vector - The target point.
@return {BufferGeometry} A reference to this instance.