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Programming With QuickTime VR

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QuickTime VR Atom Containers

This chapter describes in detail the VR world and node information atom containers. These two atom containers can be obtained by calling the QuickTime VR Manager routines QTVRGetVRWorld and QTVRGetNodeInfo . Those routines are described in Chapter 2, "QuickTime VR Manager."

You need to know about the various atoms contained in the VR world and node information atom containers if you want to extract information from a QuickTime VR file that cannot be obtained using VR Manager functions. For instance, there is no QuickTime VR Manager function that returns the name of a given node; however, you can easily get a node's name by reading the information in the atoms in the atom container returned by the QTVRGetNodeInfo function.

In addition, if you want your application to be able to create QuickTime VR movies, you to need to know about these atom containers as well as the information contained in Chapter 5, "Creating QuickTime VR Movies."

In general, you don't need to know about the format of atoms or atom containers simply to use the functions provided by the QuickTime VR Manager.

Contents

About Atom Containers

VR World Atom Container

Node Information Atom Container