Three-dimensional (3-d) navigation

One or more embodiments of techniques or systems for 3-dimensional (3-D) navigation are provided herein. A heads-up display (HUD) component can project graphic elements on focal planes to a vehicle surrounding environment around. The HUD component can cause these graphic elements to volumetrically or to appear 3-D by a distance between a focal plane and the vehicle is moved or adjusted. In addition, a desired position for graphic elements can be customized. This allows the HUD component to project graphic elements as moving avatars. In other words, allows adapting the focal plane distance and the target positions that graphic elements in three dimensions along an x, y and z-axis are projected. Further, a moving avatar can be "encouraged" by sequentially projecting the avatar in different focal planes, thereby providing an occupant's perception that the avatar moves away on the vehicle to or from it.