Programming With QuickTime VR

VR World Atom Container

The VR world atom container (VR world for short) includes such information as the name for the entire scene, the default node ID, and default imaging properties, as well as a list of the nodes contained in the QTVR track.

A VR world can also contain custom scene information. QuickTime VR ignores any atom types that it doesn't recognize, but you can extract those atoms from the VR world using standard QuickTime atom functions.

The structure of the VR world atom container is shown in Figure 4-1 . The component atoms are defined and their structures are shown in the sections that follow.

Figure 1 Structure of the VR world atom container

The following sections describe the atom types found in a VR world atom container:

VR World Atom Container

VR World Header Atom Structure

Imaging Parent Atom

Panorama-Imaging Atom

Node Parent Atom

Node Location Atom Structure

Custom Cursor Atoms