Programming With QuickTime VR 2.1

VR World Header Atom Structure

A VR world header atom contains the name of the scene and the default node ID to be used when the file is first opened. The structure of a VR world header atom is defined by the VRWorldHeaderAtom data type:



 
typedef struct VRWorldHeaderAtom {

    UInt16                              majorVersion;

    UInt16                              minorVersion;

    QTAtomID                            nameAtomID;

    UInt32                              defaultNodeID;

    UInt32                              vrWorldFlags;

    UInt32                              reserved1;

    UInt32                              reserved2;

} VRWorldHeaderAtom, *VRWorldHeaderAtomPtr;

majorVersion: The major version number of the file format.
minorVersion: The minor version number of the file format.
nameAtomID: The ID of the string atom that contains the name of the scene. This atom should be a sibling of the scene header atom. The value of this field is 0 if no name atom exists.
defaultNodeID: The ID of the default node (that is, the node to be displayed when the file is first opened).
vrWorldFlags: A set of flags for the VR world. Currently, this field is unused.
reserved1: Reserved. This field must be 0.
reserved2: Reserved. This field must be 0.

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