constructor( point ) {

		/**
		 * A point in 3D space.
		 *
		 * @private
		 * @type {Vector3}
		 */
		this.point = point;

		/**
		 * Reference to the previous vertex in the double linked list.
		 *
		 * @private
		 * @type {?VertexNode}
		 * @default null
		 */
		this.prev = null;

		/**
		 * Reference to the next vertex in the double linked list.
		 *
		 * @private
		 * @type {?VertexNode}
		 * @default null
		 */
		this.next = null;

		/**
		 * Reference to the face that is able to see this vertex.
		 *
		 * @private
		 * @type {?Face}
		 * @default null
		 */
		this.face = null;

	}
Constructs a new vertex node.

@param {Vector3} point - A point in 3D space.