Summary

The Java 3D view model is powerful because of the ideal of “write once, display anywhere.” After the developer has mastered the concept of the view model, it becomes fairly easy to display on almost any device with minor modifications.

The key concept is that Java 3D needs to know where the eyes are relative to the screen(s). This information can be used to solve almost any viewing problem, including head tracking when the screens are attached to the head (HMD) and when the screens are not attached to the head but rather to the room (CAVE and FishTank VR).